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How to Write a Conclusion for Research Papers (with Examples)

The conclusion of a research paper is a crucial section that plays a significant role in the overall impact and effectiveness of your research paper. However, this is also the section that typically receives less attention compared to the introduction and the body of the paper. The conclusion serves to provide a concise summary of the key findings, their significance, their implications, and a sense of closure to the study. Discussing how can the findings be applied in real-world scenarios or inform policy, practice, or decision-making is especially valuable to practitioners and policymakers. The research paper conclusion also provides researchers with clear insights and valuable information for their own work, which they can then build on and contribute to the advancement of knowledge in the field.

The research paper conclusion should explain the significance of your findings within the broader context of your field. It restates how your results contribute to the existing body of knowledge and whether they confirm or challenge existing theories or hypotheses. Also, by identifying unanswered questions or areas requiring further investigation, your awareness of the broader research landscape can be demonstrated.

Remember to tailor the research paper conclusion to the specific needs and interests of your intended audience, which may include researchers, practitioners, policymakers, or a combination of these.

Table of Contents

What is a conclusion in a research paper, summarizing conclusion, editorial conclusion, externalizing conclusion, importance of a good research paper conclusion, how to write a conclusion for your research paper, research paper conclusion examples.

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Frequently Asked Questions

A conclusion in a research paper is the final section where you summarize and wrap up your research, presenting the key findings and insights derived from your study. The research paper conclusion is not the place to introduce new information or data that was not discussed in the main body of the paper. When working on how to conclude a research paper, remember to stick to summarizing and interpreting existing content. The research paper conclusion serves the following purposes: 1

• Warn readers of the possible consequences of not attending to the problem.
• Recommend specific course(s) of action.
• Restate key ideas to drive home the ultimate point of your research paper.
• Provide a “take-home” message that you want the readers to remember about your study.

Types of conclusions for research papers

In research papers, the conclusion provides closure to the reader. The type of research paper conclusion you choose depends on the nature of your study, your goals, and your target audience. I provide you with three common types of conclusions:

A summarizing conclusion is the most common type of conclusion in research papers. It involves summarizing the main points, reiterating the research question, and restating the significance of the findings. This common type of research paper conclusion is used across different disciplines.

An editorial conclusion is less common but can be used in research papers that are focused on proposing or advocating for a particular viewpoint or policy. It involves presenting a strong editorial or opinion based on the research findings and offering recommendations or calls to action.

An externalizing conclusion is a type of conclusion that extends the research beyond the scope of the paper by suggesting potential future research directions or discussing the broader implications of the findings. This type of conclusion is often used in more theoretical or exploratory research papers.

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The conclusion in a research paper serves several important purposes:

• Offers Implications and Recommendations : Your research paper conclusion is an excellent place to discuss the broader implications of your research and suggest potential areas for further study. It’s also an opportunity to offer practical recommendations based on your findings.
• Provides Closure : A good research paper conclusion provides a sense of closure to your paper. It should leave the reader with a feeling that they have reached the end of a well-structured and thought-provoking research project.
• Leaves a Lasting Impression : Writing a well-crafted research paper conclusion leaves a lasting impression on your readers. It’s your final opportunity to leave them with a new idea, a call to action, or a memorable quote.

Writing a strong conclusion for your research paper is essential to leave a lasting impression on your readers. Here’s a step-by-step process to help you create and know what to put in the conclusion of a research paper: 2

• Research Statement : Begin your research paper conclusion by restating your research statement. This reminds the reader of the main point you’ve been trying to prove throughout your paper. Keep it concise and clear.
• Key Points : Summarize the main arguments and key points you’ve made in your paper. Avoid introducing new information in the research paper conclusion. Instead, provide a concise overview of what you’ve discussed in the body of your paper.
• Address the Research Questions : If your research paper is based on specific research questions or hypotheses, briefly address whether you’ve answered them or achieved your research goals. Discuss the significance of your findings in this context.
• Significance : Highlight the importance of your research and its relevance in the broader context. Explain why your findings matter and how they contribute to the existing knowledge in your field.
• Implications : Explore the practical or theoretical implications of your research. How might your findings impact future research, policy, or real-world applications? Consider the “so what?” question.
• Future Research : Offer suggestions for future research in your area. What questions or aspects remain unanswered or warrant further investigation? This shows that your work opens the door for future exploration.
• Closing Thought : Conclude your research paper conclusion with a thought-provoking or memorable statement. This can leave a lasting impression on your readers and wrap up your paper effectively. Avoid introducing new information or arguments here.
• Proofread and Revise : Carefully proofread your conclusion for grammar, spelling, and clarity. Ensure that your ideas flow smoothly and that your conclusion is coherent and well-structured.

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Remember that a well-crafted research paper conclusion is a reflection of the strength of your research and your ability to communicate its significance effectively. It should leave a lasting impression on your readers and tie together all the threads of your paper. Now you know how to start the conclusion of a research paper and what elements to include to make it impactful, let’s look at a research paper conclusion sample.

How to write a research paper conclusion with Paperpal?

A research paper conclusion is not just a summary of your study, but a synthesis of the key findings that ties the research together and places it in a broader context. A research paper conclusion should be concise, typically around one paragraph in length. However, some complex topics may require a longer conclusion to ensure the reader is left with a clear understanding of the study’s significance. Paperpal, an AI writing assistant trusted by over 800,000 academics globally, can help you write a well-structured conclusion for your research paper. 

• Sign Up or Log In: Create a new Paperpal account or login with your details.  
• Navigate to Features : Once logged in, head over to the features’ side navigation pane. Click on Templates and you’ll find a suite of generative AI features to help you write better, faster.  
• Generate an outline: Under Templates, select ‘Outlines’. Choose ‘Research article’ as your document type.  
• Select your section: Since you’re focusing on the conclusion, select this section when prompted.  
• Choose your field of study: Identifying your field of study allows Paperpal to provide more targeted suggestions, ensuring the relevance of your conclusion to your specific area of research. 
• Provide a brief description of your study: Enter details about your research topic and findings. This information helps Paperpal generate a tailored outline that aligns with your paper’s content. 
• Generate the conclusion outline: After entering all necessary details, click on ‘generate’. Paperpal will then create a structured outline for your conclusion, to help you start writing and build upon the outline.  
• Write your conclusion: Use the generated outline to build your conclusion. The outline serves as a guide, ensuring you cover all critical aspects of a strong conclusion, from summarizing key findings to highlighting the research’s implications. 
• Refine and enhance: Paperpal’s ‘Make Academic’ feature can be particularly useful in the final stages. Select any paragraph of your conclusion and use this feature to elevate the academic tone, ensuring your writing is aligned to the academic journal standards. 

By following these steps, Paperpal not only simplifies the process of writing a research paper conclusion but also ensures it is impactful, concise, and aligned with academic standards. Sign up with Paperpal today and write your research paper conclusion 2x faster .  

The research paper conclusion is a crucial part of your paper as it provides the final opportunity to leave a strong impression on your readers. In the research paper conclusion, summarize the main points of your research paper by restating your research statement, highlighting the most important findings, addressing the research questions or objectives, explaining the broader context of the study, discussing the significance of your findings, providing recommendations if applicable, and emphasizing the takeaway message. The main purpose of the conclusion is to remind the reader of the main point or argument of your paper and to provide a clear and concise summary of the key findings and their implications. All these elements should feature on your list of what to put in the conclusion of a research paper to create a strong final statement for your work.

A strong conclusion is a critical component of a research paper, as it provides an opportunity to wrap up your arguments, reiterate your main points, and leave a lasting impression on your readers. Here are the key elements of a strong research paper conclusion: 1. Conciseness : A research paper conclusion should be concise and to the point. It should not introduce new information or ideas that were not discussed in the body of the paper. 2. Summarization : The research paper conclusion should be comprehensive enough to give the reader a clear understanding of the research’s main contributions. 3 . Relevance : Ensure that the information included in the research paper conclusion is directly relevant to the research paper’s main topic and objectives; avoid unnecessary details. 4 . Connection to the Introduction : A well-structured research paper conclusion often revisits the key points made in the introduction and shows how the research has addressed the initial questions or objectives. 5. Emphasis : Highlight the significance and implications of your research. Why is your study important? What are the broader implications or applications of your findings? 6 . Call to Action : Include a call to action or a recommendation for future research or action based on your findings.

The length of a research paper conclusion can vary depending on several factors, including the overall length of the paper, the complexity of the research, and the specific journal requirements. While there is no strict rule for the length of a conclusion, but it’s generally advisable to keep it relatively short. A typical research paper conclusion might be around 5-10% of the paper’s total length. For example, if your paper is 10 pages long, the conclusion might be roughly half a page to one page in length.

In general, you do not need to include citations in the research paper conclusion. Citations are typically reserved for the body of the paper to support your arguments and provide evidence for your claims. However, there may be some exceptions to this rule: 1. If you are drawing a direct quote or paraphrasing a specific source in your research paper conclusion, you should include a citation to give proper credit to the original author. 2. If your conclusion refers to or discusses specific research, data, or sources that are crucial to the overall argument, citations can be included to reinforce your conclusion’s validity.

The conclusion of a research paper serves several important purposes: 1. Summarize the Key Points 2. Reinforce the Main Argument 3. Provide Closure 4. Offer Insights or Implications 5. Engage the Reader. 6. Reflect on Limitations

Remember that the primary purpose of the research paper conclusion is to leave a lasting impression on the reader, reinforcing the key points and providing closure to your research. It’s often the last part of the paper that the reader will see, so it should be strong and well-crafted.

• Makar, G., Foltz, C., Lendner, M., & Vaccaro, A. R. (2018). How to write effective discussion and conclusion sections. Clinical spine surgery, 31(8), 345-346.
• Bunton, D. (2005). The structure of PhD conclusion chapters.  Journal of English for academic purposes ,  4 (3), 207-224.

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Home » Case Study – Methods, Examples and Guide

Case Study – Methods, Examples and Guide

Table of Contents

A case study is a research method that involves an in-depth examination and analysis of a particular phenomenon or case, such as an individual, organization, community, event, or situation.

It is a qualitative research approach that aims to provide a detailed and comprehensive understanding of the case being studied. Case studies typically involve multiple sources of data, including interviews, observations, documents, and artifacts, which are analyzed using various techniques, such as content analysis, thematic analysis, and grounded theory. The findings of a case study are often used to develop theories, inform policy or practice, or generate new research questions.

Types of Case Study

Types and Methods of Case Study are as follows:

Single-Case Study

A single-case study is an in-depth analysis of a single case. This type of case study is useful when the researcher wants to understand a specific phenomenon in detail.

For Example , A researcher might conduct a single-case study on a particular individual to understand their experiences with a particular health condition or a specific organization to explore their management practices. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a single-case study are often used to generate new research questions, develop theories, or inform policy or practice.

Multiple-Case Study

A multiple-case study involves the analysis of several cases that are similar in nature. This type of case study is useful when the researcher wants to identify similarities and differences between the cases.

For Example, a researcher might conduct a multiple-case study on several companies to explore the factors that contribute to their success or failure. The researcher collects data from each case, compares and contrasts the findings, and uses various techniques to analyze the data, such as comparative analysis or pattern-matching. The findings of a multiple-case study can be used to develop theories, inform policy or practice, or generate new research questions.

Exploratory Case Study

An exploratory case study is used to explore a new or understudied phenomenon. This type of case study is useful when the researcher wants to generate hypotheses or theories about the phenomenon.

For Example, a researcher might conduct an exploratory case study on a new technology to understand its potential impact on society. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as grounded theory or content analysis. The findings of an exploratory case study can be used to generate new research questions, develop theories, or inform policy or practice.

Descriptive Case Study

A descriptive case study is used to describe a particular phenomenon in detail. This type of case study is useful when the researcher wants to provide a comprehensive account of the phenomenon.

For Example, a researcher might conduct a descriptive case study on a particular community to understand its social and economic characteristics. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a descriptive case study can be used to inform policy or practice or generate new research questions.

Instrumental Case Study

An instrumental case study is used to understand a particular phenomenon that is instrumental in achieving a particular goal. This type of case study is useful when the researcher wants to understand the role of the phenomenon in achieving the goal.

For Example, a researcher might conduct an instrumental case study on a particular policy to understand its impact on achieving a particular goal, such as reducing poverty. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of an instrumental case study can be used to inform policy or practice or generate new research questions.

Case Study Data Collection Methods

Here are some common data collection methods for case studies:

Interviews involve asking questions to individuals who have knowledge or experience relevant to the case study. Interviews can be structured (where the same questions are asked to all participants) or unstructured (where the interviewer follows up on the responses with further questions). Interviews can be conducted in person, over the phone, or through video conferencing.

Observations

Observations involve watching and recording the behavior and activities of individuals or groups relevant to the case study. Observations can be participant (where the researcher actively participates in the activities) or non-participant (where the researcher observes from a distance). Observations can be recorded using notes, audio or video recordings, or photographs.

Documents can be used as a source of information for case studies. Documents can include reports, memos, emails, letters, and other written materials related to the case study. Documents can be collected from the case study participants or from public sources.

Surveys involve asking a set of questions to a sample of individuals relevant to the case study. Surveys can be administered in person, over the phone, through mail or email, or online. Surveys can be used to gather information on attitudes, opinions, or behaviors related to the case study.

Artifacts are physical objects relevant to the case study. Artifacts can include tools, equipment, products, or other objects that provide insights into the case study phenomenon.

How to conduct Case Study Research

Conducting a case study research involves several steps that need to be followed to ensure the quality and rigor of the study. Here are the steps to conduct case study research:

• Define the research questions: The first step in conducting a case study research is to define the research questions. The research questions should be specific, measurable, and relevant to the case study phenomenon under investigation.
• Select the case: The next step is to select the case or cases to be studied. The case should be relevant to the research questions and should provide rich and diverse data that can be used to answer the research questions.
• Collect data: Data can be collected using various methods, such as interviews, observations, documents, surveys, and artifacts. The data collection method should be selected based on the research questions and the nature of the case study phenomenon.
• Analyze the data: The data collected from the case study should be analyzed using various techniques, such as content analysis, thematic analysis, or grounded theory. The analysis should be guided by the research questions and should aim to provide insights and conclusions relevant to the research questions.
• Draw conclusions: The conclusions drawn from the case study should be based on the data analysis and should be relevant to the research questions. The conclusions should be supported by evidence and should be clearly stated.
• Validate the findings: The findings of the case study should be validated by reviewing the data and the analysis with participants or other experts in the field. This helps to ensure the validity and reliability of the findings.
• Write the report: The final step is to write the report of the case study research. The report should provide a clear description of the case study phenomenon, the research questions, the data collection methods, the data analysis, the findings, and the conclusions. The report should be written in a clear and concise manner and should follow the guidelines for academic writing.

Examples of Case Study

Here are some examples of case study research:

• The Hawthorne Studies : Conducted between 1924 and 1932, the Hawthorne Studies were a series of case studies conducted by Elton Mayo and his colleagues to examine the impact of work environment on employee productivity. The studies were conducted at the Hawthorne Works plant of the Western Electric Company in Chicago and included interviews, observations, and experiments.
• The Stanford Prison Experiment: Conducted in 1971, the Stanford Prison Experiment was a case study conducted by Philip Zimbardo to examine the psychological effects of power and authority. The study involved simulating a prison environment and assigning participants to the role of guards or prisoners. The study was controversial due to the ethical issues it raised.
• The Challenger Disaster: The Challenger Disaster was a case study conducted to examine the causes of the Space Shuttle Challenger explosion in 1986. The study included interviews, observations, and analysis of data to identify the technical, organizational, and cultural factors that contributed to the disaster.
• The Enron Scandal: The Enron Scandal was a case study conducted to examine the causes of the Enron Corporation’s bankruptcy in 2001. The study included interviews, analysis of financial data, and review of documents to identify the accounting practices, corporate culture, and ethical issues that led to the company’s downfall.
• The Fukushima Nuclear Disaster : The Fukushima Nuclear Disaster was a case study conducted to examine the causes of the nuclear accident that occurred at the Fukushima Daiichi Nuclear Power Plant in Japan in 2011. The study included interviews, analysis of data, and review of documents to identify the technical, organizational, and cultural factors that contributed to the disaster.

Application of Case Study

Case studies have a wide range of applications across various fields and industries. Here are some examples:

Business and Management

Case studies are widely used in business and management to examine real-life situations and develop problem-solving skills. Case studies can help students and professionals to develop a deep understanding of business concepts, theories, and best practices.

Case studies are used in healthcare to examine patient care, treatment options, and outcomes. Case studies can help healthcare professionals to develop critical thinking skills, diagnose complex medical conditions, and develop effective treatment plans.

Case studies are used in education to examine teaching and learning practices. Case studies can help educators to develop effective teaching strategies, evaluate student progress, and identify areas for improvement.

Social Sciences

Case studies are widely used in social sciences to examine human behavior, social phenomena, and cultural practices. Case studies can help researchers to develop theories, test hypotheses, and gain insights into complex social issues.

Law and Ethics

Case studies are used in law and ethics to examine legal and ethical dilemmas. Case studies can help lawyers, policymakers, and ethical professionals to develop critical thinking skills, analyze complex cases, and make informed decisions.

Purpose of Case Study

The purpose of a case study is to provide a detailed analysis of a specific phenomenon, issue, or problem in its real-life context. A case study is a qualitative research method that involves the in-depth exploration and analysis of a particular case, which can be an individual, group, organization, event, or community.

The primary purpose of a case study is to generate a comprehensive and nuanced understanding of the case, including its history, context, and dynamics. Case studies can help researchers to identify and examine the underlying factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and detailed understanding of the case, which can inform future research, practice, or policy.

Case studies can also serve other purposes, including:

• Illustrating a theory or concept: Case studies can be used to illustrate and explain theoretical concepts and frameworks, providing concrete examples of how they can be applied in real-life situations.
• Developing hypotheses: Case studies can help to generate hypotheses about the causal relationships between different factors and outcomes, which can be tested through further research.
• Providing insight into complex issues: Case studies can provide insights into complex and multifaceted issues, which may be difficult to understand through other research methods.
• Informing practice or policy: Case studies can be used to inform practice or policy by identifying best practices, lessons learned, or areas for improvement.

Advantages of Case Study Research

There are several advantages of case study research, including:

• In-depth exploration: Case study research allows for a detailed exploration and analysis of a specific phenomenon, issue, or problem in its real-life context. This can provide a comprehensive understanding of the case and its dynamics, which may not be possible through other research methods.
• Rich data: Case study research can generate rich and detailed data, including qualitative data such as interviews, observations, and documents. This can provide a nuanced understanding of the case and its complexity.
• Holistic perspective: Case study research allows for a holistic perspective of the case, taking into account the various factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and comprehensive understanding of the case.
• Theory development: Case study research can help to develop and refine theories and concepts by providing empirical evidence and concrete examples of how they can be applied in real-life situations.
• Practical application: Case study research can inform practice or policy by identifying best practices, lessons learned, or areas for improvement.
• Contextualization: Case study research takes into account the specific context in which the case is situated, which can help to understand how the case is influenced by the social, cultural, and historical factors of its environment.

Limitations of Case Study Research

There are several limitations of case study research, including:

• Limited generalizability : Case studies are typically focused on a single case or a small number of cases, which limits the generalizability of the findings. The unique characteristics of the case may not be applicable to other contexts or populations, which may limit the external validity of the research.
• Biased sampling: Case studies may rely on purposive or convenience sampling, which can introduce bias into the sample selection process. This may limit the representativeness of the sample and the generalizability of the findings.
• Subjectivity: Case studies rely on the interpretation of the researcher, which can introduce subjectivity into the analysis. The researcher’s own biases, assumptions, and perspectives may influence the findings, which may limit the objectivity of the research.
• Limited control: Case studies are typically conducted in naturalistic settings, which limits the control that the researcher has over the environment and the variables being studied. This may limit the ability to establish causal relationships between variables.
• Time-consuming: Case studies can be time-consuming to conduct, as they typically involve a detailed exploration and analysis of a specific case. This may limit the feasibility of conducting multiple case studies or conducting case studies in a timely manner.
• Resource-intensive: Case studies may require significant resources, including time, funding, and expertise. This may limit the ability of researchers to conduct case studies in resource-constrained settings.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

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The conclusion is intended to help the reader understand why your research should matter to them after they have finished reading the paper. A conclusion is not merely a summary of the main topics covered or a re-statement of your research problem, but a synthesis of key points derived from the findings of your study and, if applicable based on your analysis, explain new areas for future research. For most college-level research papers, two or three well-developed paragraphs is sufficient for a conclusion, although in some cases, more paragraphs may be required in describing the key findings and highlighting their significance.

Conclusions. The Writing Center. University of North Carolina; Conclusions. The Writing Lab and The OWL. Purdue University.

Importance of a Good Conclusion

A well-written conclusion provides important opportunities to demonstrate to the reader your understanding of the research problem. These include:

• Presenting the last word on the issues you raised in your paper . Just as the introduction gives a first impression to your reader, the conclusion offers a chance to leave a lasting impression. Do this, for example, by highlighting key findings in your analysis that advance new understanding about the research problem, that are unusual or unexpected, or that have important implications applied to practice.
• Summarizing your thoughts and conveying the larger significance of your study . The conclusion is an opportunity to succinctly re-emphasize  your answer to the "So What?" question by placing the study within the context of how your research advances past studies about the topic.
• Identifying how a gap in the literature has been addressed . The conclusion can be where you describe how a previously identified gap in the literature [first identified in your literature review section] has been addressed by your research and why this contribution is significant.
• Demonstrating the importance of your ideas . Don't be shy. The conclusion offers an opportunity to elaborate on the impact and significance of your findings. This is particularly important if your study approached examining the research problem from an unusual or innovative perspective.
• Introducing possible new or expanded ways of thinking about the research problem . This does not refer to introducing new information [which should be avoided], but to offer new insight and creative approaches for framing or contextualizing the research problem based on the results of your study.

Bunton, David. “The Structure of PhD Conclusion Chapters.” Journal of English for Academic Purposes 4 (July 2005): 207–224; Conclusions. The Writing Center. University of North Carolina; Kretchmer, Paul. Twelve Steps to Writing an Effective Conclusion. San Francisco Edit, 2003-2008; Conclusions. The Writing Lab and The OWL. Purdue University; Assan, Joseph. "Writing the Conclusion Chapter: The Good, the Bad and the Missing." Liverpool: Development Studies Association (2009): 1-8.

Structure and Writing Style

I.  General Rules

The general function of your paper's conclusion is to restate the main argument . It reminds the reader of your main argument(s) strengths and reiterates the most important evidence supporting those argument(s). Do this by clearly summarizing the context, background, and the necessity of examining the research problem in relation to an issue, controversy, or a gap found in the literature. However, make sure that your conclusion is not simply a repetitive summary of the findings. This reduces the impact of the argument(s) you have developed in your paper.

When writing the conclusion to your paper, follow these general rules:

• Present your conclusions in clear, concise language. Re-state the purpose of your study, then describe how your findings differ or support those of other studies and why [i.e., describe what were the unique, new, or crucial contributions your study made to the overall research about your topic].
• Do not simply reiterate your findings or the discussion of your results. Provide a synthesis of arguments presented in the paper to show how these converge to address the research problem and the overall objectives of your study.
• Indicate opportunities for future research if you haven't already done so in the discussion section of your paper. Highlighting the need for further research provides the reader with evidence that you have an in-depth awareness of the research problem but that further analysis should take place beyond the scope of your investigation.

Consider the following points to help ensure your conclusion is presented well:

• If the argument or purpose of your paper is complex, you may need to summarize the argument for your reader.
• If, prior to your conclusion, you have not yet explained the significance of your findings or if you are proceeding inductively, use the end of your paper to describe your main points and explain their significance.
• Move from a detailed to a general level of consideration that returns the topic to the context provided by the introduction or within a new context that emerges from the data [this is opposite of the introduction, which begins with general discussion of the context and ends with a detailed description of the research problem]. 

The conclusion also provides a place for you to persuasively and succinctly restate the research problem, given that the reader has now been presented with all the information about the topic . Depending on the discipline you are writing in, the concluding paragraph may contain your reflections on the evidence presented. However, the nature of being introspective about the research you have conducted will depend on the topic and whether your professor wants you to express your observations in this way. If asked to think introspectively about the topic, do not delve into idle speculation. Being introspective means looking within yourself as an author to try and understand an issue more deeply, not to guess at possible outcomes or make up scenarios not supported by the evidence.

II.  Developing a Compelling Conclusion

Although an effective conclusion needs to be clear and succinct, it does not need to be written passively or lack a compelling narrative. Strategies to help you move beyond merely summarizing the key points of your research paper may include any of the following:

• If your paper addresses a critical, contemporary problem, warn readers of the possible consequences of not attending to the problem proactively based on the evidence presented in your study.
• Recommend a specific course or courses of action that, if adopted, could address a specific problem in practice or in the development of new knowledge leading to positive change.
• Cite a relevant quotation or expert opinion already noted in your paper in order to lend authority and support to the conclusion(s) you have reached [a good source would be from a source cited in your literature review].
• Explain the consequences of your research in a way that elicits action or demonstrates urgency in seeking change.
• Restate a key statistic, fact, or visual image to emphasize the most important finding of your paper.
• If your discipline encourages personal reflection, illustrate your concluding point by drawing from your own life experiences.
• Return to an anecdote, an example, or a quotation that you presented in your introduction, but add further insight derived from the findings of your study; use your interpretation of results from your study to recast it in new or important ways.
• Provide a "take-home" message in the form of a succinct, declarative statement that you want the reader to remember about your study.

III. Problems to Avoid

Failure to be concise Your conclusion section should be concise and to the point. Conclusions that are too lengthy often have unnecessary information in them. The conclusion is not the place for details about your methodology or results. Although you should give a summary of what was learned from your research, this summary should be relatively brief, since the emphasis in the conclusion is on the implications, evaluations, insights, and other forms of analysis that you make. Strategies for writing concisely can be found here .

Failure to comment on larger, more significant issues In the introduction, your task was to move from the general [topic studied within the field of study] to the specific [the research problem]. However, in the conclusion, your task is to move the discussion from specific [your research problem] back to a general discussion framed around the implications and significance of your findings [i.e., how your research contributes new understanding or fills an important gap in the literature]. In short, the conclusion is where you should place your research within a larger context [visualize the structure of your paper as an hourglass--start with a broad introduction and review of the literature, move to the specific method of analysis and the discussion, conclude with a broad summary of the study's implications and significance].

Failure to reveal problems and negative results Negative aspects of the research process should never be ignored. These are problems, deficiencies, or challenges encountered during your study. They should be summarized as a way of qualifying your overall conclusions. If you encountered negative or unintended results [i.e., findings that are validated outside the research context in which they were generated], you must report them in the results section and discuss their implications in the discussion section of your paper. In the conclusion, use negative or surprising results as an opportunity to explain their possible significance and/or how they may form the basis for future research.

Failure to provide a clear summary of what was learned In order to discuss how your research fits within your field of study [and possibly the world at large], you need to summarize briefly and succinctly how it contributes to new knowledge or a new understanding about the research problem. This element of your conclusion may be only a few sentences long, but it often represents the key takeaway for your reader.

Failure to match the objectives of your research Often research objectives in the social and behavioral sciences change while the research is being carried out due to unforeseen factors or unanticipated variables. This is not a problem unless you forget to go back and refine the original objectives in your introduction. As these changes emerge they must be documented so that they accurately reflect what you were trying to accomplish in your research [not what you thought you might accomplish when you began].

Resist the urge to apologize If you've immersed yourself in studying the research problem, you presumably should know a good deal about it [perhaps even more than your professor!]. Nevertheless, by the time you have finished writing, you may be having some doubts about what you have produced. Repress those doubts! Don't undermine your authority as a researcher by saying something like, "This is just one approach to examining this problem; there may be other, much better approaches that...." The overall tone of your conclusion should convey confidence to the reader concerning the validity and realiability of your research.

Assan, Joseph. "Writing the Conclusion Chapter: The Good, the Bad and the Missing." Liverpool: Development Studies Association (2009): 1-8; Concluding Paragraphs. College Writing Center at Meramec. St. Louis Community College; Conclusions. The Writing Center. University of North Carolina; Conclusions. The Writing Lab and The OWL. Purdue University; Freedman, Leora  and Jerry Plotnick. Introductions and Conclusions. The Lab Report. University College Writing Centre. University of Toronto; Leibensperger, Summer. Draft Your Conclusion. Academic Center, the University of Houston-Victoria, 2003; Make Your Last Words Count. The Writer’s Handbook. Writing Center. University of Wisconsin Madison; Miquel, Fuster-Marquez and Carmen Gregori-Signes. “Chapter Six: ‘Last but Not Least:’ Writing the Conclusion of Your Paper.” In Writing an Applied Linguistics Thesis or Dissertation: A Guide to Presenting Empirical Research . John Bitchener, editor. (Basingstoke,UK: Palgrave Macmillan, 2010), pp. 93-105; Tips for Writing a Good Conclusion. Writing@CSU. Colorado State University; Kretchmer, Paul. Twelve Steps to Writing an Effective Conclusion. San Francisco Edit, 2003-2008; Writing Conclusions. Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Writing: Considering Structure and Organization. Institute for Writing Rhetoric. Dartmouth College.

Writing Tip

Don't Belabor the Obvious!

Avoid phrases like "in conclusion...," "in summary...," or "in closing...." These phrases can be useful, even welcome, in oral presentations. But readers can see by the tell-tale section heading and number of pages remaining that they are reaching the end of your paper. You'll irritate your readers if you belabor the obvious.

Assan, Joseph. "Writing the Conclusion Chapter: The Good, the Bad and the Missing." Liverpool: Development Studies Association (2009): 1-8.

Another Writing Tip

New Insight, Not New Information!

Don't surprise the reader with new information in your conclusion that was never referenced anywhere else in the paper. This is why the conclusion rarely has citations to sources that haven't been referenced elsewhere in your paper. If you have new information to present, add it to the discussion or other appropriate section of the paper. Note that, although no new information is introduced, the conclusion, along with the discussion section, is where you offer your most "original" contributions in the paper; the conclusion is where you describe the value of your research, demonstrate that you understand the material that you have presented, and position your findings within the larger context of scholarship on the topic, including describing how your research contributes new insights to that scholarship.

Assan, Joseph. "Writing the Conclusion Chapter: The Good, the Bad and the Missing." Liverpool: Development Studies Association (2009): 1-8; Conclusions. The Writing Center. University of North Carolina.

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How to write a strong conclusion for your research paper

Last updated

17 February 2024

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Writing a research paper is a chance to share your knowledge and hypothesis. It's an opportunity to demonstrate your many hours of research and prove your ability to write convincingly.

Ideally, by the end of your research paper, you'll have brought your readers on a journey to reach the conclusions you've pre-determined. However, if you don't stick the landing with a good conclusion, you'll risk losing your reader’s trust.

Writing a strong conclusion for your research paper involves a few important steps, including restating the thesis and summing up everything properly.

Find out what to include and what to avoid, so you can effectively demonstrate your understanding of the topic and prove your expertise.

• Why is a good conclusion important?

A good conclusion can cement your paper in the reader’s mind. Making a strong impression in your introduction can draw your readers in, but it's the conclusion that will inspire them.

• What to include in a research paper conclusion

There are a few specifics you should include in your research paper conclusion. Offer your readers some sense of urgency or consequence by pointing out why they should care about the topic you have covered. Discuss any common problems associated with your topic and provide suggestions as to how these problems can be solved or addressed.

The conclusion should include a restatement of your initial thesis. Thesis statements are strengthened after you’ve presented supporting evidence (as you will have done in the paper), so make a point to reintroduce it at the end.

Finally, recap the main points of your research paper, highlighting the key takeaways you want readers to remember. If you've made multiple points throughout the paper, refer to the ones with the strongest supporting evidence.

• Steps for writing a research paper conclusion

Many writers find the conclusion the most challenging part of any research project . By following these three steps, you'll be prepared to write a conclusion that is effective and concise.

• Step 1: Restate the problem

Always begin by restating the research problem in the conclusion of a research paper. This serves to remind the reader of your hypothesis and refresh them on the main point of the paper. 

When restating the problem, take care to avoid using exactly the same words you employed earlier in the paper.

• Step 2: Sum up the paper

After you've restated the problem, sum up the paper by revealing your overall findings. The method for this differs slightly, depending on whether you're crafting an argumentative paper or an empirical paper.

Argumentative paper: Restate your thesis and arguments

Argumentative papers involve introducing a thesis statement early on. In crafting the conclusion for an argumentative paper, always restate the thesis, outlining the way you've developed it throughout the entire paper.

It might be appropriate to mention any counterarguments in the conclusion, so you can demonstrate how your thesis is correct or how the data best supports your main points.

Empirical paper: Summarize research findings

Empirical papers break down a series of research questions. In your conclusion, discuss the findings your research revealed, including any information that surprised you.

Be clear about the conclusions you reached, and explain whether or not you expected to arrive at these particular ones.

• Step 3: Discuss the implications of your research

Argumentative papers and empirical papers also differ in this part of a research paper conclusion. Here are some tips on crafting conclusions for argumentative and empirical papers.

Argumentative paper: Powerful closing statement

In an argumentative paper, you'll have spent a great deal of time expressing the opinions you formed after doing a significant amount of research. Make a strong closing statement in your argumentative paper's conclusion to share the significance of your work.

You can outline the next steps through a bold call to action, or restate how powerful your ideas turned out to be.

Empirical paper: Directions for future research

Empirical papers are broader in scope. They usually cover a variety of aspects and can include several points of view.

To write a good conclusion for an empirical paper, suggest the type of research that could be done in the future, including methods for further investigation or outlining ways other researchers might proceed.

If you feel your research had any limitations, even if they were outside your control, you could mention these in your conclusion.

After you finish outlining your conclusion, ask someone to read it and offer feedback. In any research project you're especially close to, it can be hard to identify problem areas. Having a close friend or someone whose opinion you value read the research paper and provide honest feedback can be invaluable. Take note of any suggested edits and consider incorporating them into your paper if they make sense.

• Things to avoid in a research paper conclusion

Keep these aspects to avoid in mind as you're writing your conclusion and refer to them after you've created an outline.

Dry summary

Writing a memorable, succinct conclusion is arguably more important than a strong introduction. Take care to avoid just rephrasing your main points, and don't fall into the trap of repeating dry facts or citations.

You can provide a new perspective for your readers to think about or contextualize your research. Either way, make the conclusion vibrant and interesting, rather than a rote recitation of your research paper’s highlights.

Clichéd or generic phrasing

Your research paper conclusion should feel fresh and inspiring. Avoid generic phrases like "to sum up" or "in conclusion." These phrases tend to be overused, especially in an academic context and might turn your readers off.

The conclusion also isn't the time to introduce colloquial phrases or informal language. Retain a professional, confident tone consistent throughout your paper’s conclusion so it feels exciting and bold.

New data or evidence

While you should present strong data throughout your paper, the conclusion isn't the place to introduce new evidence. This is because readers are engaged in actively learning as they read through the body of your paper.

By the time they reach the conclusion, they will have formed an opinion one way or the other (hopefully in your favor!). Introducing new evidence in the conclusion will only serve to surprise or frustrate your reader.

Ignoring contradictory evidence

If your research reveals contradictory evidence, don't ignore it in the conclusion. This will damage your credibility as an expert and might even serve to highlight the contradictions.

Be as transparent as possible and admit to any shortcomings in your research, but don't dwell on them for too long.

Ambiguous or unclear resolutions

The point of a research paper conclusion is to provide closure and bring all your ideas together. You should wrap up any arguments you introduced in the paper and tie up any loose ends, while demonstrating why your research and data are strong.

Use direct language in your conclusion and avoid ambiguity. Even if some of the data and sources you cite are inconclusive or contradictory, note this in your conclusion to come across as confident and trustworthy.

• Examples of research paper conclusions

Your research paper should provide a compelling close to the paper as a whole, highlighting your research and hard work. While the conclusion should represent your unique style, these examples offer a starting point:

Ultimately, the data we examined all point to the same conclusion: Encouraging a good work-life balance improves employee productivity and benefits the company overall. The research suggests that when employees feel their personal lives are valued and respected by their employers, they are more likely to be productive when at work. In addition, company turnover tends to be reduced when employees have a balance between their personal and professional lives. While additional research is required to establish ways companies can support employees in creating a stronger work-life balance, it's clear the need is there.

Social media is a primary method of communication among young people. As we've seen in the data presented, most young people in high school use a variety of social media applications at least every hour, including Instagram and Facebook. While social media is an avenue for connection with peers, research increasingly suggests that social media use correlates with body image issues. Young girls with lower self-esteem tend to use social media more often than those who don't log onto social media apps every day. As new applications continue to gain popularity, and as more high school students are given smartphones, more research will be required to measure the effects of prolonged social media use.

What are the different kinds of research paper conclusions?

There are no formal types of research paper conclusions. Ultimately, the conclusion depends on the outline of your paper and the type of research you’re presenting. While some experts note that research papers can end with a new perspective or commentary, most papers should conclude with a combination of both. The most important aspect of a good research paper conclusion is that it accurately represents the body of the paper.

Can I present new arguments in my research paper conclusion?

Research paper conclusions are not the place to introduce new data or arguments. The body of your paper is where you should share research and insights, where the reader is actively absorbing the content. By the time a reader reaches the conclusion of the research paper, they should have formed their opinion. Introducing new arguments in the conclusion can take a reader by surprise, and not in a positive way. It might also serve to frustrate readers.

How long should a research paper conclusion be?

There's no set length for a research paper conclusion. However, it's a good idea not to run on too long, since conclusions are supposed to be succinct. A good rule of thumb is to keep your conclusion around 5 to 10 percent of the paper's total length. If your paper is 10 pages, try to keep your conclusion under one page.

What should I include in a research paper conclusion?

A good research paper conclusion should always include a sense of urgency, so the reader can see how and why the topic should matter to them. You can also note some recommended actions to help fix the problem and some obstacles they might encounter. A conclusion should also remind the reader of the thesis statement, along with the main points you covered in the paper. At the end of the conclusion, add a powerful closing statement that helps cement the paper in the mind of the reader.

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How to Write Effective Case Study Conclusions

Table of Contents

Not many people realize that the conclusion is vital to writing your case study. It should summarize the entire study, clarify all the research points, and focus on a few key takeaways.

There are several ways how to write case study conclusion . And we’re here to guide you with some easy and effective steps.

A good conclusion is interesting and captures the essence of your case. It needs to reflect your information and help the reader adopt your conclusion and act on it. Keep reading to learn how to do just that.

Importance of Your Case Study Conclusion

Your conclusion is an opportunity for you to summarize your findings and highlight what this study has taught you.

It should also summarize and draw out the main points you’ve discussed and reinforce the importance of your work. Remember, your last impression needs to be just as good as your first. You want to leave readers with something to think about or act on.

Types of Case Studies

Before we proceed on  how to write case study conclusion , let’s take a brief look at the different types of case studies.

There are different types of case studies depending on how they are structured, what is the target audience, and the research methodology used. And your conclusion may vary depending on the nature of the case study.

Some of the most common case studies are:

• Historical:  Historical events have a multitude of sources offering different perspectives. These perspectives can be applied, compared, and thoroughly analyzed in the modern world.
• Problem-oriented:  This type of case study is used for solving problems. You can use theoretical situations where you immerse yourself in a situation. Through this, you can thoroughly examine a problem and find ways to resolve it.
• Cumulative:  In a cumulative study, you gather information and offer comparisons. An example of this is a business case study that tells people about a product’s value.
• Critical:  Critical case studies focus on exploring the causes and effects of a particular situation. To do this, you can have varying amounts of research and various interviews.
• Illustrative:  In this case study, certain events are described, as well as the lessons learned.

How to Write Case Study Conclusion Effectively

Writing your conclusion doesn’t need to be complicated. Follow these steps to help you get started on an effective conclusion.

1. Inform the reader precisely why your case study and your findings are relevant

Your conclusion is where you point out the significance of your study. You can cite a specific case in your work and explain how it applies to other relevant cases.

2. Restate your thesis and your main findings

Remind your readers of the thesis statement you made in your introduction but don’t just copy it directly. Also, make sure to mention your main findings to back up your thesis.

3. Give a summary of previous case studies you reviewed

What did you discover that was different about your case? How was previous research helpful? Include this in your conclusion so readers can understand your work and how it contributes to expanding current knowledge.

4. End with recommendations

Wrap up your paper by explaining how your case study and findings could form part of future research on the topic. You can also express your recommendations by commenting on how certain studies, programs, or policies could be improved.

Make sure everything you write in your conclusion section is convincing enough to tell the reader that your case is an effective solution. And if the purpose of your case is complicated, make sure to sum it up in point form. This will help the reader review the case again before approaching the conclusion.

How Long Should Your Conclusion Be?

The length of your conclusion may vary depending on whether you’re writing a thesis or a dissertation. At least 5-9 percent of your overall word count should be dedicated to your conclusion.

Often, empirical scientific studies have brief conclusions describing the main findings and recommendations for future research. On the other hand, humanities topics or systematic reviews may require more space to conclude their analysis. They will need to integrate all the previous sections into an overall argument.

Wrapping Up

Your conclusion is an opportunity to translate and amplify the information you have put in the body of the paper.

More importantly, it is an opportunity to leave a lasting positive impression . Make the right impression by following these quick steps on  how to write case study conclusion  effectively.

Abir Ghenaiet

Abir is a data analyst and researcher. Among her interests are artificial intelligence, machine learning, and natural language processing. As a humanitarian and educator, she actively supports women in tech and promotes diversity.

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Methodology

• What Is a Case Study? | Definition, Examples & Methods

What Is a Case Study? | Definition, Examples & Methods

Published on May 8, 2019 by Shona McCombes . Revised on November 20, 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organization, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research.

A case study research design usually involves qualitative methods , but quantitative methods are sometimes also used. Case studies are good for describing , comparing, evaluating and understanding different aspects of a research problem .

Table of contents

When to do a case study, step 1: select a case, step 2: build a theoretical framework, step 3: collect your data, step 4: describe and analyze the case, other interesting articles.

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case.

Case studies are often a good choice in a thesis or dissertation . They keep your project focused and manageable when you don’t have the time or resources to do large-scale research.

You might use just one complex case study where you explore a single subject in depth, or conduct multiple case studies to compare and illuminate different aspects of your research problem.

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Once you have developed your problem statement and research questions , you should be ready to choose the specific case that you want to focus on. A good case study should have the potential to:

• Provide new or unexpected insights into the subject
• Challenge or complicate existing assumptions and theories
• Propose practical courses of action to resolve a problem
• Open up new directions for future research

TipIf your research is more practical in nature and aims to simultaneously investigate an issue as you solve it, consider conducting action research instead.

Unlike quantitative or experimental research , a strong case study does not require a random or representative sample. In fact, case studies often deliberately focus on unusual, neglected, or outlying cases which may shed new light on the research problem.

Example of an outlying case studyIn the 1960s the town of Roseto, Pennsylvania was discovered to have extremely low rates of heart disease compared to the US average. It became an important case study for understanding previously neglected causes of heart disease.

However, you can also choose a more common or representative case to exemplify a particular category, experience or phenomenon.

Example of a representative case studyIn the 1920s, two sociologists used Muncie, Indiana as a case study of a typical American city that supposedly exemplified the changing culture of the US at the time.

While case studies focus more on concrete details than general theories, they should usually have some connection with theory in the field. This way the case study is not just an isolated description, but is integrated into existing knowledge about the topic. It might aim to:

• Exemplify a theory by showing how it explains the case under investigation
• Expand on a theory by uncovering new concepts and ideas that need to be incorporated
• Challenge a theory by exploring an outlier case that doesn’t fit with established assumptions

To ensure that your analysis of the case has a solid academic grounding, you should conduct a literature review of sources related to the topic and develop a theoretical framework . This means identifying key concepts and theories to guide your analysis and interpretation.

There are many different research methods you can use to collect data on your subject. Case studies tend to focus on qualitative data using methods such as interviews , observations , and analysis of primary and secondary sources (e.g., newspaper articles, photographs, official records). Sometimes a case study will also collect quantitative data.

Example of a mixed methods case studyFor a case study of a wind farm development in a rural area, you could collect quantitative data on employment rates and business revenue, collect qualitative data on local people’s perceptions and experiences, and analyze local and national media coverage of the development.

The aim is to gain as thorough an understanding as possible of the case and its context.

In writing up the case study, you need to bring together all the relevant aspects to give as complete a picture as possible of the subject.

How you report your findings depends on the type of research you are doing. Some case studies are structured like a standard scientific paper or thesis , with separate sections or chapters for the methods , results and discussion .

Others are written in a more narrative style, aiming to explore the case from various angles and analyze its meanings and implications (for example, by using textual analysis or discourse analysis ).

In all cases, though, make sure to give contextual details about the case, connect it back to the literature and theory, and discuss how it fits into wider patterns or debates.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

• Normal distribution
• Degrees of freedom
• Null hypothesis
• Discourse analysis
• Control groups
• Mixed methods research
• Non-probability sampling
• Quantitative research
• Ecological validity

Research bias

• Rosenthal effect
• Implicit bias
• Cognitive bias
• Selection bias
• Negativity bias
• Status quo bias

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How to Write the Perfect Conclusion to Your UX Case Study

If you nail your case study’s conclusion, you’re much likelier to get called to an interview, because employers tend to recall the last parts of a case study the most. Let’s see how you can craft the perfect ending to your UX case study.

So, you’ve written a great introductory hook to your UX case study, where you defined your problem statement , your approach to solving it and your role in the project. You then brought your reader through your design process and highlighted the decisions and challenges that led to your final result. One question remains: how do you end your UX case study with a bang? As it turns out, you need to include 3 things in your UX case study’s ending to make it truly satisfying: the final product, its impacts and your reflections.

What’s the Purpose of Your UX Case Study’s Conclusion?

To wrap your story up satisfactorily.

The conclusion of your UX case study serves as your story’s resolution. It’s where you tie up loose ends and close your story’s arc by answering the main question you asked in your introduction. When done right, your case study’s ending will create immense satisfaction and a lasting impression on a recruiter.

In the last part of your UX case study’s 5-part story arc, create a nice resolution to your story. The conclusion is where you bring everything together to leave your reader satisfied, if not wowed, with what you did and the outcome. Author / Copyright holder: Teo Yu Siang and the Interaction Design Foundation. Copyright terms and license: CC BY-NC-SA 3.0.

To Create a Great Last Impression

The lasting impression you create through your UX case study’s conclusion is absolutely vital. This is because of the serial-position effect , discovered by the German psychologist Hermann Ebbinghaus, where people tend to remember the first and last parts of a series best and forget the middle parts the most.

For instance, do you remember your most recent stay at a hotel? Chances are, you can recall how your stay ended when you checked out and how it began when you checked in—but nothing much of the middle. That’s the serial-position effect.

In 1913, Hermann Ebbinghaus discovered that we tend to remember only the beginnings and endings of things, and largely forget the middle parts. This means your UX case study’s introduction and conclusion are crucial parts! Author / copyright holder: Teo Yu Siang and the Interaction Design Foundation. Copyright terms and license: CC BY-NC-SA 3.0.

In particular, the serial-position effect is found to be strongest in the last items of a list. People tend to recall the last parts of an experience the most —that’s how vital your UX case study’s ending is! That isn’t to say you can afford to neglect any part of your case study’s middle part, though—it’s merely a scientific observation as to how recruiters will remember you. In other words, if you nail your case study’s conclusion, you’re much likelier to get called to an interview.

How Long Should Your UX Case Study’s Conclusion Be?

Your conclusion should ideally be as short as your introduction, or 4–5 sentences long . However, unlike in an introduction, you’ve got room for flexibility in your conclusion. That’s because while your introduction’s role is to quickly provide the needed information to move on to the main story, your conclusion has a different purpose—to make a great last impression. So, if you think a slightly longer conclusion can impress a recruiter more, you should go for it.

For instance, if you’ve got interesting lessons learnt or incredible results, you can afford to make your conclusion slightly longer, at around 3–4 paragraphs. Generally, the longer your case study’s middle portion is, the longer you can make your conclusion. But just like any other part of your case study, include only the essential and remove the rest. Every word counts!

3 Things You Should Include in Your UX Case Study’s Conclusion

A great UX case study’s ending contains these 3 things:

The final product;

Results and impact of the final product; and

Reflections and lessons learnt.

1. Show the Final Product

If you haven’t already showcased your final product in the middle part of your UX case study, now is the time to show it. Your final product will differ from project to project. For instance, a design thinking project will likely have a high-fidelity prototype as the final product. In a user research project, however, the final deliverable might be a set of user personas or a research report that contains recommendations.

If your final product is visual in nature—for example, an app—show it in a visual way. Screenshots, videos and interactive embedded prototypes are great ways to impress a recruiter. At the same time, practice restraint so that you don’t dump 100 photos of your entire project. Use only the most impactful ones.

If you’ve revamped an existing design, then this is a great time to showcase a before-and-after comparison. Include some screenshots of the problems in the old design in your introduction—and show and point out where you’ve improved it in your conclusion.

Even if your role is specialized and you therefore didn’t contribute directly to the final design of a product, you can still show the final product. This helps recruiters understand how your work shaped the final results. For example, if you specialize in visual design and have created an icon library, feel free to show how the icons are used throughout the product. If you do so, remember to make it clear what you worked on and what your colleagues created.

2. Demonstrate the Impacts of Your Project

Results are a must-have in your case study’s conclusion. Recruiters hire you to bring value to their organization, so they want to see the impact your work has generated.

Show results that are linked to the problem statement you introduced at the beginning of your case study. Since your problem statement should involve a business need, your results should also be business-oriented . For instance, show how your work has improved conversion rates or decreased drop-off rates. If you’ve created an app, show the app download or user rating metrics.

We encourage you to show numerical results, because they easily show your impact on a business. However, you can also show qualitative results—for instance, you can quote positive feedback and anecdotes from users and stakeholders .

Product designer Simon Pan’s UX case study is a great example of how to show the business results of your project. In his case study on his work for the ridesharing app Uber, Simon clearly shows how his work positively impacted the business. Author / copyright holder: Simon Pan. Copyright terms and license: Fair use.

3. Reflect on What You’ve Learnt

It’s vital that you reflect on your work in your conclusion. That’s how you create a sense of resolution and end in a satisfying way.

Furthermore, recruiters like to see designers who reflect on what they’ve learnt. According to Anett Illés from the UX design portfolio site UX Folio:

“UX recruiters and UX leads search for problem solvers motivated to explore and learn new things. So don’t hide your thirst for knowledge. On the contrary, highlight it!”

—Anett Illés, UX Folio

If you’re stuck at coming up with reflections, here are some questions you can ask yourself:

What is your main challenge in the project, and how have you handled it? For example, it could be the first time you’ve ever led a project. Or the project could’ve required you to step out of your comfort zone. Ideally, you should include a challenge that you have overcome, although sometimes a failure can make for an effective reflection, too.

What are some lessons you’ve learnt through the project? We are bound to make mistakes in our projects—and while we shouldn’t dwell on them in our UX case studies , we can turn them into learning points. Demonstrate how you’ve grown through your project.

Has the project changed your outlook as a designer? For instance, you could’ve learnt that a designer’s job is not only to delight users but also to bring value to the business.

What are your next steps for the project? Remember that design is an iterative process, so there’s no clear end point. If you could, how would you continue your work and take your project to the next level?

Download Our Template to Guide You

We’ve created a PDF guide to help you write your UX case study’s conclusion. Download your copy now:

An Example of a UX Case Study Conclusion

Let’s end with a sample conclusion we’ve created. This hypothetical UX case study is a design thinking project where we redesigned the home page of an ecommerce site. In this case study, we’ll assume that we’ve already introduced the final product in our middle portion.

We start with a long, first draft of our conclusion. We’ve included headings so you can clearly see its different components:

Results and impact: Compared with the previous version of the home page, our newly designed home page increased the conversion rate by 20%. Our admin team also reported a marked drop in the number of enquiries about how the platform works, which demonstrates an increase in ease of understanding. Main challenge and lesson learnt: This was the first time I led a project. Although I was nervous at the beginning, I soon learnt to trust my team-mates. I also learnt that active communication and short daily stand-up meetings were key to ensuring the project’s success. Next steps: This home page redesign validated our hypothesis that the most effective value proposition is one that is centered around a person’s core motivation . I’m looking forward to applying the same approach to other key pages of the platform.

Now that we’ve got all the main points, we can focus on shortening it to fit 4–5 sentences. Don’t skip this step, because it will make your conclusion drastically better!

Here’s our shortened and final conclusion:

Our redesigned home page had a 20% higher conversion rate. We also received fewer enquiries about how the platform works, which shows the new design is easier to understand. This was the first time I led a project. While I was nervous initially, I learnt to trust my team-mates and that daily stand-up meetings were key to the project’s success. This project validated the value of using copy that is centered around a person’s core motivation, and I look forward to applying the same approach to the rest of the site.

If you’ve revamped an existing design, you should also point out the specific areas you’ve improved in the design.

The Take Away

A well-written conclusion to a UX case study ensures that a recruiter leaves with a great last impression. This is extremely valuable because we tend to remember the last parts of an experience best, due to what’s called the serial-position effect.

Your conclusion should be 4–5 sentences long, although a longer middle portion or more elaborate reflections and results can justify a lengthier conclusion. To create a satisfying end to your project’s story and deliver a great last impression, you should include the following in your UX case study’s conclusion:

The final product (if you’ve not already shown it in your case study’s middle portion);

Business-oriented results and impacts of your project; and

Reflections on your work.

References and Where to Learn More

Our UX case study writing guides take inspiration from Gustav Freytag’s 5-part story structure, also called Freytag’s Pyramid. The pyramid was first written in Freytag’s 1863 book Die Technik des Dramas , or “Technique of the Drama”.

Hermann Ebbinghaus first published about the serial-position effect in 1913 in his paper titled “On memory: A contribution to experimental psychology” .

You can check out Simon Pan’s UX design portfolio for inspiration:

Your use of English can make or break your UX case study. Check out our guide, which contains 8 tips to write effectively

Anett Illés writes about how to follow UX recruiters’ logic in your UX case study in her article in UX Folio

Hero image: Author / Copyright holder: Matt Botsford. Copyright terms and license: Unsplash License.

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How to Write a Case Study - All You Wanted to Know

What do you study in your college? If you are a psychology, sociology, or anthropology student, we bet you might be familiar with what a case study is. This research method is used to study a certain person, group, or situation. In this guide from our dissertation writing service , you will learn how to write a case study professionally, from researching to citing sources properly. Also, we will explore different types of case studies and show you examples — so that you won’t have any other questions left.

What Is a Case Study?

A case study is a subcategory of research design which investigates problems and offers solutions. Case studies can range from academic research studies to corporate promotional tools trying to sell an idea—their scope is quite vast.

What Is the Difference Between a Research Paper and a Case Study?

While research papers turn the reader’s attention to a certain problem, case studies go even further. Case study guidelines require students to pay attention to details, examining issues closely and in-depth using different research methods. For example, case studies may be used to examine court cases if you study Law, or a patient's health history if you study Medicine. Case studies are also used in Marketing, which are thorough, empirically supported analysis of a good or service's performance. Well-designed case studies can be valuable for prospective customers as they can identify and solve the potential customers pain point.

Case studies involve a lot of storytelling – they usually examine particular cases for a person or a group of people. This method of research is very helpful, as it is very practical and can give a lot of hands-on information. Most commonly, the length of the case study is about 500-900 words, which is much less than the length of an average research paper.

The structure of a case study is very similar to storytelling. It has a protagonist or main character, which in your case is actually a problem you are trying to solve. You can use the system of 3 Acts to make it a compelling story. It should have an introduction, rising action, a climax where transformation occurs, falling action, and a solution.

Here is a rough formula for you to use in your case study:

Problem (Act I): > Solution (Act II) > Result (Act III) > Conclusion.

Types of Case Studies

The purpose of a case study is to provide detailed reports on an event, an institution, a place, future customers, or pretty much anything. There are a few common types of case study, but the type depends on the topic. The following are the most common domains where case studies are needed:

• Historical case studies are great to learn from. Historical events have a multitude of source info offering different perspectives. There are always modern parallels where these perspectives can be applied, compared, and thoroughly analyzed.
• Problem-oriented case studies are usually used for solving problems. These are often assigned as theoretical situations where you need to immerse yourself in the situation to examine it. Imagine you’re working for a startup and you’ve just noticed a significant flaw in your product’s design. Before taking it to the senior manager, you want to do a comprehensive study on the issue and provide solutions. On a greater scale, problem-oriented case studies are a vital part of relevant socio-economic discussions.
• Cumulative case studies collect information and offer comparisons. In business, case studies are often used to tell people about the value of a product.
• Critical case studies explore the causes and effects of a certain case.
• Illustrative case studies describe certain events, investigating outcomes and lessons learned.

Need a compelling case study? EssayPro has got you covered. Our experts are ready to provide you with detailed, insightful case studies that capture the essence of real-world scenarios. Elevate your academic work with our professional assistance.

Case Study Format

The case study format is typically made up of eight parts:

• Executive Summary. Explain what you will examine in the case study. Write an overview of the field you’re researching. Make a thesis statement and sum up the results of your observation in a maximum of 2 sentences.
• Background. Provide background information and the most relevant facts. Isolate the issues.
• Case Evaluation. Isolate the sections of the study you want to focus on. In it, explain why something is working or is not working.
• Proposed Solutions. Offer realistic ways to solve what isn’t working or how to improve its current condition. Explain why these solutions work by offering testable evidence.
• Conclusion. Summarize the main points from the case evaluations and proposed solutions. 6. Recommendations. Talk about the strategy that you should choose. Explain why this choice is the most appropriate.
• Implementation. Explain how to put the specific strategies into action.
• References. Provide all the citations.

How to Write a Case Study

Let's discover how to write a case study.

Setting Up the Research

When writing a case study, remember that research should always come first. Reading many different sources and analyzing other points of view will help you come up with more creative solutions. You can also conduct an actual interview to thoroughly investigate the customer story that you'll need for your case study. Including all of the necessary research, writing a case study may take some time. The research process involves doing the following:

• Define your objective. Explain the reason why you’re presenting your subject. Figure out where you will feature your case study; whether it is written, on video, shown as an infographic, streamed as a podcast, etc.
• Determine who will be the right candidate for your case study. Get permission, quotes, and other features that will make your case study effective. Get in touch with your candidate to see if they approve of being part of your work. Study that candidate’s situation and note down what caused it.
• Identify which various consequences could result from the situation. Follow these guidelines on how to start a case study: surf the net to find some general information you might find useful.
• Make a list of credible sources and examine them. Seek out important facts and highlight problems. Always write down your ideas and make sure to brainstorm.
• Focus on several key issues – why they exist, and how they impact your research subject. Think of several unique solutions. Draw from class discussions, readings, and personal experience. When writing a case study, focus on the best solution and explore it in depth. After having all your research in place, writing a case study will be easy. You may first want to check the rubric and criteria of your assignment for the correct case study structure.

Read Also: ' WHAT IS A CREDIBLE SOURCES ?'

Although your instructor might be looking at slightly different criteria, every case study rubric essentially has the same standards. Your professor will want you to exhibit 8 different outcomes:

• Correctly identify the concepts, theories, and practices in the discipline.
• Identify the relevant theories and principles associated with the particular study.
• Evaluate legal and ethical principles and apply them to your decision-making.
• Recognize the global importance and contribution of your case.
• Construct a coherent summary and explanation of the study.
• Demonstrate analytical and critical-thinking skills.
• Explain the interrelationships between the environment and nature.
• Integrate theory and practice of the discipline within the analysis.

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Case Study Outline

Let's look at the structure of an outline based on the issue of the alcoholic addiction of 30 people.

Introduction

• Statement of the issue: Alcoholism is a disease rather than a weakness of character.
• Presentation of the problem: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there.
• Explanation of the terms: In the past, alcoholism was commonly referred to as alcohol dependence or alcohol addiction. Alcoholism is now the more severe stage of this addiction in the disorder spectrum.
• Hypotheses: Drinking in excess can lead to the use of other drugs.
• Importance of your story: How the information you present can help people with their addictions.
• Background of the story: Include an explanation of why you chose this topic.
• Presentation of analysis and data: Describe the criteria for choosing 30 candidates, the structure of the interview, and the outcomes.
• Strong argument 1: ex. X% of candidates dealing with anxiety and depression...
• Strong argument 2: ex. X amount of people started drinking by their mid-teens.
• Strong argument 3: ex. X% of respondents’ parents had issues with alcohol.
• Concluding statement: I have researched if alcoholism is a disease and found out that…
• Recommendations: Ways and actions for preventing alcohol use.

Writing a Case Study Draft

After you’ve done your case study research and written the outline, it’s time to focus on the draft. In a draft, you have to develop and write your case study by using: the data which you collected throughout the research, interviews, and the analysis processes that were undertaken. Follow these rules for the draft:

Use Data to Illustrate Key Points in Your Case Study

Even though your case study is a story, it should be based on evidence. Use as much data as possible to illustrate your point. Without the right data, your case study may appear weak and the readers may not be able to relate to your issue as much as they should. Let's see the examples from essay writing service :

‍ With data: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there. Without data: A lot of people suffer from alcoholism in the United States.

Try to include as many credible sources as possible. You may have terms or sources that could be hard for other cultures to understand. If this is the case, you should include them in the appendix or Notes for the Instructor or Professor.

Finalizing the Draft: Checklist

After you finish drafting your case study, polish it up by answering these ‘ask yourself’ questions and think about how to end your case study:

• Check that you follow the correct case study format, also in regards to text formatting.
• Check that your work is consistent with its referencing and citation style.
• Micro-editing — check for grammar and spelling issues.
• Macro-editing — does ‘the big picture’ come across to the reader? Is there enough raw data, such as real-life examples or personal experiences? Have you made your data collection process completely transparent? Does your analysis provide a clear conclusion, allowing for further research and practice?

Problems to avoid:

• Overgeneralization – Do not go into further research that deviates from the main problem.
• Failure to Document Limitations – Just as you have to clearly state the limitations of a general research study, you must describe the specific limitations inherent in the subject of analysis.
• Failure to Extrapolate All Possible Implications – Just as you don't want to over-generalize from your case study findings, you also have to be thorough in the consideration of all possible outcomes or recommendations derived from your findings.

How to Create a Title Page and Cite a Case Study

Let's see how to create an awesome title page.

Your title page depends on the prescribed citation format. The title page should include:

• A title that attracts some attention and describes your study
• The title should have the words “case study” in it
• The title should range between 5-9 words in length
• Your name and contact information
• Your finished paper should be only 500 to 1,500 words in length.With this type of assignment, write effectively and avoid fluff

Here is a template for the APA and MLA format title page:

There are some cases when you need to cite someone else's study in your own one – therefore, you need to master how to cite a case study. A case study is like a research paper when it comes to citations. You can cite it like you cite a book, depending on what style you need.

Citation Example in MLA ‍ Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies. Boston: Harvard Business Publishing, 2008. Print.

Citation Example in APA ‍ Hill, L., Khanna, T., & Stecker, E. A. (2008). HCL Technologies. Boston: Harvard Business Publishing.

Citation Example in Chicago Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies.

Case Study Examples

To give you an idea of a professional case study example, we gathered and linked some below.

Eastman Kodak Case Study

Case Study Example: Audi Trains Mexican Autoworkers in Germany

To conclude, a case study is one of the best methods of getting an overview of what happened to a person, a group, or a situation in practice. It allows you to have an in-depth glance at the real-life problems that businesses, healthcare industry, criminal justice, etc. may face. This insight helps us look at such situations in a different light. This is because we see scenarios that we otherwise would not, without necessarily being there. If you need custom essays , try our research paper writing services .

Get Help Form Qualified Writers

Crafting a case study is not easy. You might want to write one of high quality, but you don’t have the time or expertise. If you’re having trouble with your case study, help with essay request - we'll help. EssayPro writers have read and written countless case studies and are experts in endless disciplines. Request essay writing, editing, or proofreading assistance from our custom case study writing service , and all of your worries will be gone.

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What Is A Case Study?

How to cite a case study in apa, how to write a case study.

Daniel Parker

is a seasoned educational writer focusing on scholarship guidance, research papers, and various forms of academic essays including reflective and narrative essays. His expertise also extends to detailed case studies. A scholar with a background in English Literature and Education, Daniel’s work on EssayPro blog aims to support students in achieving academic excellence and securing scholarships. His hobbies include reading classic literature and participating in academic forums.

is an expert in nursing and healthcare, with a strong background in history, law, and literature. Holding advanced degrees in nursing and public health, his analytical approach and comprehensive knowledge help students navigate complex topics. On EssayPro blog, Adam provides insightful articles on everything from historical analysis to the intricacies of healthcare policies. In his downtime, he enjoys historical documentaries and volunteering at local clinics.

Topic Guide - Developing Your Research Study

• Purpose of Guide
• Flaws to Avoid
• Independent and Dependent Variables
• Glossary of Research Terms
• Reading Research Effectively
• Narrowing a Topic Idea
• Broadening a Topic Idea
• Extending the Timeliness of a Topic Idea
• Academic Writing Style
• Choosing a Title
• Making an Outline
• Paragraph Development
• APA 7th Edition
• Executive Summary
• The C.A.R.S. Model
• Background Information
• The Research Problem/Question
• Theoretical Framework
• Citation Tracking
• Content Alert Services
• Evaluating Sources
• Primary Sources
• Secondary Sources
• Tiertiary Sources
• What Is Scholarly vs. Popular?
• Qualitative Methods
• Quantitative Methods
• Using Non-Textual Elements
• Limitations of the Study

Importance of a Good Conclusion

Structure and writing style, writing tip, another writing tip.

• 10. Proofreading Your Paper
• Writing Concisely
• Common Grammar Mistakes
• Avoiding Plagiarism
• Footnotes or Endnotes?
• Further Readings
• Annotated Bibliography
• Types of Structured Group Activities
• Group Project Survival Skills
• Multiple Book Review Essay
• Reviewing Collected Works
• Writing a Case Study
• Writing a Research Proposal
• Bibliography

The conclusion is intended to help the reader understand why your research should matter to them after they have finished reading the paper. A conclusion is not merely a summary of the main topics covered or a re-statement of your research problem, but a synthesis of key points and, if applicable, where you recommend new areas for future research. For most college-level research papers, one or two well-developed paragraphs is sufficient for a conclusion, although in some cases, three or more paragraphs may be required.

Conclusions . The Writing Center. University of North Carolina; Conclusions . The Writing Lab and The OWL. Purdue University.

A well-written conclusion provides you with important opportunities to demonstrate to the reader your understanding of the research problem. These include:

• Presenting the last word on the issues you raised in your paper . Just as the introduction gives a first impression to your reader, the conclusion offers a chance to leave a lasting impression. Do this, for example, by highlighting key findings in your analysis or result section or by noting important or unexpected implications applied to practice.
• Summarizing your thoughts and conveying the larger significance of your study . The conclusion is an opportunity to succinctly answer [or in some cases, to re-emphasize]  the "So What?" question by placing the study within the context of how your research advances past research about the topic.
• Identifying how a gap in the literature has been addressed . The conclusion can be where you describe how a previously identified gap in the literature [described in your literature review section] has been filled by your research.
• Demonstrating the importance of your ideas . Don't be shy. The conclusion offers you the opportunity to elaborate on the impact and significance of your findings.
• Introducing possible new or expanded ways of thinking about the research problem . This does not refer to introducing new information [which should be avoided], but to offer new insight and creative approaches for framing or contextualizing the research problem based on the results of your study.

Bunton, David. “The Structure of PhD Conclusion Chapters.” Journal of English for Academic Purposes 4 (July 2005): 207–224; Conclusions . The Writing Center. University of North Carolina; Kretchmer, Paul. Twelve Steps to Writing an Effective Conclusion . San Francisco Edit, 2003-2008; Conclusions . The Writing Lab and The OWL. Purdue University.

I.  General Rules

The function of your paper's conclusion is to restate the main argument . It reminds the reader of the strengths of your main argument(s) and reiterates the most important evidence supporting those argument(s). Do this by stating clearly the context, background, and necessity of pursuing the research problem you investigated in relation to an issue, controversy, or a gap found in the literature. Make sure, however, that your conclusion is not simply a repetitive summary of the findings. This reduces the impact of the argument(s) you have developed in your essay.

When writing the conclusion to your paper, follow these general rules:

• State your conclusions in clear, simple language. Re-state the purpose of your study then state how your findings differ or support those of other studies and why [i.e., what were the unique or new contributions your study made to the overall research about your topic?].
• Do not simply reiterate your results or the discussion of your results. Provide a synthesis of arguments presented in the paper to show how these converge to address the research problem and the overall objectives of your study
• Indicate opportunities for future research if you haven't already done so in the discussion section of your paper. Highlighting the need for further research provides the reader with evidence that you have an in-depth awareness of the research problem.

Consider the following points to help ensure your conclusion is presented well:

• If the argument or purpose of your paper is complex, you may need to summarize the argument for your reader.
• If, prior to your conclusion, you have not yet explained the significance of your findings or if you are proceeding inductively, use the end of your paper to describe your main points and explain their significance.
• Move from a detailed to a general level of consideration that returns the topic to the context provided by the introduction or within a new context that emerges from the data.

The conclusion also provides a place for you to persuasively and succinctly restate your research problem, given that the reader has now been presented with all the information about the topic . Depending on the discipline you are writing in, the concluding paragraph may contain your reflections on the evidence presented, or on the essay's central research problem. However, the nature of being introspective about the research you have done will depend on the topic and whether your professor wants you to express your observations in this way.

NOTE : If asked to think introspectively about the topics, do not delve into idle speculation. Being introspective means looking within yourself as an author to try and understand an issue more deeply, not to guess at possible outcomes or make up scenarios not supported by evidence.

II.  Developing a Compelling Conclusion

Although an effective conclusion needs to be clear and succinct, it does not need to be written passively or lack a compelling narrative. Strategies to help you move beyond merely summarizing the key points of your research paper may include any of the following strategies:

• If your essay deals with a contemporary problem, warn readers of the possible consequences of not attending to the problem.
• Recommend a specific course or courses of action that, if adopted, could address a specific problem in practice or in the development of new knowledge.
• Cite a relevant quotation or expert opinion already noted in your paper in order to lend authority to the conclusion you have reached [a good place to look is research from your literature review].
• Explain the consequences of your research in a way that elicits action or demonstrates urgency in seeking change.
• Restate a key statistic, fact, or visual image to emphasize the ultimate point of your paper.
• If your discipline encourages personal reflection, illustrate your concluding point with a relevant narrative drawn from your own life experiences.
• Return to an anecdote, an example, or a quotation that you presented in your introduction, but add further insight derived from the findings of your study; use your interpretation of results to recast it in new or important ways.
• Provide a "take-home" message in the form of a strong, succinct statement that you want the reader to remember about your study.

III. Problems to Avoid

Failure to be concise Your conclusion section should be concise and to the point. Conclusions that are too lengthy often have unnecessary information in them. The conclusion is not the place for details about your methodology or results. Although you should give a summary of what was learned from your research, this summary should be relatively brief, since the emphasis in the conclusion is on the implications, evaluations, insights, and other forms of analysis that you make. Strategies for writing concisely can be found here .

Failure to comment on larger, more significant issues In the introduction, your task was to move from the general [the field of study] to the specific [the research problem]. However, in the conclusion, your task is to move from a specific discussion [your research problem] back to a general discussion [i.e., how your research contributes new understanding or fills an important gap in the literature]. In short, the conclusion is where you should place your research within a larger context [visualize your paper as an hourglass--start with a broad introduction and review of the literature, move to the specific analysis and discussion, conclude with a broad summary of the study's implications and significance].

Failure to reveal problems and negative results Negative aspects of the research process should never be ignored. Problems, drawbacks, and challenges encountered during your study should be summarized as a way of qualifying your overall conclusions. If you encountered negative or unintended results [i.e., findings that are validated outside the research context in which they were generated], you must report them in the results section and discuss their implications in the discussion section of your paper. In the conclusion, use your summary of the negative results as an opportunity to explain their possible significance and/or how they may form the basis for future research.

Failure to provide a clear summary of what was learned In order to be able to discuss how your research fits back into your field of study [and possibly the world at large], you need to summarize briefly and succinctly how it contributes to new knowledge or a new understanding about the research problem. This element of your conclusion may be only a few sentences long.

Failure to match the objectives of your research Often research objectives in the social sciences change while the research is being carried out. This is not a problem unless you forget to go back and refine the original objectives in your introduction. As these changes emerge they must be documented so that they accurately reflect what you were trying to accomplish in your research [not what you thought you might accomplish when you began].

Resist the urge to apologize If you've immersed yourself in studying the research problem, you presumably should know a good deal about it [perhaps even more than your professor!]. Nevertheless, by the time you have finished writing, you may be having some doubts about what you have produced. Repress those doubts! Don't undermine your authority by saying something like, "This is just one approach to examining this problem; there may be other, much better approaches that...." The overall tone of your conclusion should convey confidence to the reader.

Assan, Joseph. Writing the Conclusion Chapter: The Good, the Bad and the Missing . Department of Geography, University of Liverpool; Concluding Paragraphs . College Writing Center at Meramec. St. Louis Community College; Conclusions . The Writing Center. University of North Carolina; Conclusions . The Writing Lab and The OWL. Purdue University; Freedman, Leora  and Jerry Plotnick. Introductions and Conclusions . The Lab Report. University College Writing Centre. University of Toronto; Leibensperger, Summer. Draft Your Conclusion . Academic Center, the University of Houston-Victoria, 2003; Make Your Last Words Count . The Writer’s Handbook. Writing Center. University of Wisconsin, Madison; Tips for Writing a Good Conclusion . Writing@CSU. Colorado State University; Kretchmer, Paul. Twelve Steps to Writing an Effective Conclusion . San Francisco Edit, 2003-2008; Writing Conclusions . Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Writing: Considering Structure and Organization . Institute for Writing Rhetoric. Dartmouth College.

Don't Belabor the Obvious!

Avoid phrases like "in conclusion...," "in summary...," or "in closing...." These phrases can be useful, even welcome, in oral presentations. But readers can see by the tell-tale section heading and number of pages remaining to read, when an essay is about to end. You'll irritate your readers if you belabor the obvious.

New Insight, Not New Information!

Don't surprise the reader with new information in your conclusion that was never referenced anywhere else in the paper. If you have new information to present, add it to the discussion or other appropriate section of the paper. Note that, although no actual new information is introduced, the conclusion, along with the discussion section, is where you offer your most "original" contributions in the paper; the conclusion is where you describe the value of your research, demonstrate that you understand the material that you’ve presented, and locate your findings within the larger context of scholarship on the topic, including describing how your research contributes new insights or value to that scholarship.

Assan, Joseph. Writing the Conclusion Chapter: The Good, the Bad and the Missing . Department of Geography, University of Liverpool; Conclusions . The Writing Center. University of North Carolina.

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Case Study Thesis Statement

Ai generator.

A case study is a deep and comprehensive study of a specific subject, such as individuals, groups, or events, in their real-life context. Crafting a compelling thesis statement for a case study ensures that readers are primed to engage with the detailed analysis that follows. It sets the tone and provides a roadmap for what’s to be explored. Whether you’re examining a business scenario, a societal issue, or a psychological condition, a well-constructed thesis sets the foundation. Let’s delve into examples, writing techniques, and tips to perfect this art.

What is a Case Study Thesis Statement? – Definition

A case study thesis statement is a concise summary that outlines the central point or argument of a case study. It encapsulates the primary findings, insights, or conclusions drawn from the detailed analysis of a particular subject or situation in its real-life context. This statement serves as a guide for readers, offering a snapshot of what the case study will explore and the significance of its findings.

What is an example of a Case Study thesis statement?

“In the analysis of XYZ Corporation’s marketing strategies during the fiscal year 2020-2021, it’s evident that the company’s innovative use of social media advertising not only boosted its brand visibility among millennials but also led to a 15% increase in sales, demonstrating the power of digital platforms in modern business models.”

This Specific thesis statement provides a clear insight into the focus of the case study (XYZ Corporation’s marketing strategies) and highlights the primary conclusion (success in using social media advertising to boost sales).

100 Case Study Thesis Statement Examples

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Case study thesis statements provide a concise encapsulation of the primary conclusions or insights gleaned from an in-depth analysis of a subject. They serve as a roadmap for readers, informing them of the study’s focal points and key findings. To craft an effective case study thesis, it’s imperative to be specific, evidence-based, and relevant to the subject being explored. Below are 100 examples spanning various fields and scenarios:

• Analyzing the success of Apple’s iPhone X launch, it’s evident that the blend of technological innovation and targeted marketing resulted in record-breaking sales figures globally.
• A deep dive into London’s urban planning post-2000 reveals a significant push towards sustainable infrastructure, reducing the city’s carbon footprint by 12%.
• In studying patient recovery rates at the ABC Rehabilitation Center, it becomes clear that personalized therapy programs yield a 25% faster recovery time compared to generic methods.
• A review of Brazil’s reforestation efforts in the last decade demonstrates that community involvement is a pivotal factor, with local engagement accelerating afforestation by 18%.
• Exploring the financial collapse of Company XYZ in 2019, mismanagement of funds and a lack of internal audits were the predominant causes leading to its bankruptcy.
• The rise in mental health issues among high school students from 2015-2020, as examined in Region A, strongly correlates with increased social media usage and cyberbullying incidents.
• A detailed analysis of Japan’s public transport system reveals that timely investments in technology and maintenance are primary reasons for its 99% punctuality rate.
• Studying the diet patterns of Mediterranean regions provides insights into lower cardiovascular disease rates, highlighting the benefits of olive oil, fish, and whole grains.
• The decline in print media sales from 2000-2020, as evident in the case of Magazine ABC, is largely due to the surge in digital content consumption and changing reader habits.
• In assessing the success of the ‘Clean River’ campaign in City B, it’s observed that public awareness drives and stricter industrial regulations reduced water pollution by 30%
• An examination of solar energy adoption in Rural Region X indicates that governmental subsidies coupled with community workshops played a pivotal role in increasing installations by 40% in five years.
• By delving into the cultural revival in City Y, it’s apparent that grassroots movements and local art festivals were instrumental in rejuvenating traditional art forms and bolstering tourism.
• A study of telecommuting trends during the 2020 pandemic reveals that companies with pre-existing digital infrastructure reported a smoother transition and a mere 5% drop in productivity.
• Through analyzing the public health response in Country Z during the measles outbreak, it’s clear that rapid immunization drives and public awareness campaigns curbed the spread by 60%.
• A review of the organic farming movement in Region P shows that farmer cooperatives and government-backed training sessions were crucial in tripling organic produce output in a decade.
• Assessing the success factors behind Brand Q’s viral ad campaign, a blend of humor, social relevance, and effective online targeting resulted in a 300% ROI.
• An in-depth look at the urban wildlife conservation initiative in City R suggests that integrating green corridors and public education were key to increasing urban biodiversity by 20%.
• Studying the economic turnaround of City S post-recession, it emerges that a combination of SME incentives, infrastructure investments, and tourism promotions led to a steady 7% GDP growth.
• Exploring the education overhaul in District T, the introduction of experiential learning methods and teacher training programs significantly improved student performance metrics across all grades.
• The analysis of e-commerce trends in Country U during the festive season underscores that localized marketing campaigns and easy return policies boosted sales by an unprecedented 45%
• An exploration of the rehabilitation programs in Prison V reveals that the integration of vocational training reduced recidivism rates by 15% over three years.
• Investigating the decline of traditional crafts in Region W, it becomes apparent that globalized market pressures and a generational shift in career preferences were primary contributors.
• The analysis of startup ecosystem growth in City X demonstrates that mentorship programs and venture capital accessibility were crucial drivers, leading to a 50% increase in successful startup launches.
• In evaluating the healthcare system of Country Y, the strategic placement of clinics and telemedicine integration were central to achieving a 90% accessibility rate in remote areas.
• Studying the architectural evolution in City Z, the emphasis on eco-friendly designs and green spaces has significantly enhanced residents’ quality of life and reduced energy consumption.
• A detailed assessment of the digital literacy program in District A1 indicates that hands-on workshops and collaboration with tech companies led to a 30% increase in digital skills among the elderly.
• The case study of the MNO Music Festival shows that blending international and local artists, along with immersive cultural experiences, resulted in a tripling of international attendees.
• In examining the rebranding strategy of Company B2, leveraging user-generated content and transparency in production processes garnered a 60% boost in brand loyalty.
• Exploring the impact of the ‘Green School’ initiative in Region C3, schools that integrated environmental education witnessed a marked increase in student-led sustainability projects.
• By delving into the tourism dynamics of Island D4, it’s observed that the emphasis on eco-tourism and cultural preservation led to sustained tourism growth without ecological degradation.
• A deep dive into the public transport upgrades in City E5 reveals that the inclusion of smart ticketing systems and real-time tracking improved user satisfaction rates by 25%.
• Analyzing the performance of the XYZ sports team over a decade, the focus on grassroots talent recruitment and continuous training regimes was key to their championship victories.
• A study of the fast-food industry shifts in Region F6 showcases that the introduction of plant-based menu options was instrumental in capturing a new health-conscious demographic.
• Through assessing the cybersecurity reforms in Organization G7, proactive threat monitoring and employee training drastically reduced security breaches by 80%.
• An examination of the ‘Urban Forest’ project in City H8 underlines that community participation and periodic maintenance drives ensured a 90% survival rate of planted trees.
• Investigating the cultural festival in Village I9, the collaboration with local artisans and digital promotions drew an unprecedented global audience, revitalizing the local economy
• The scrutiny of e-learning trends in School J10 revealed that blending video tutorials with interactive assignments resulted in higher student engagement and a 20% improvement in test scores.
• In studying the revamp of the K11 shopping mall, the introduction of experiential retail spaces and diversified dining options significantly increased footfall and monthly sales.
• By analyzing the success of the L12 mobile banking app, user-friendly interfaces combined with robust security measures led to a user adoption rate surpassing 70% within the first year.
• The comprehensive review of NGO M13’s outreach programs indicates that localized content and leveraging social media influencers amplified awareness, doubling donations received.
• An in-depth study of the transportation overhaul in City N14 highlights that integrating cycling lanes and pedestrian zones reduced vehicular traffic by 15% and enhanced urban livability.
• A case study on the O15 biotech startup’s rapid growth identifies that collaborations with academic institutions and a focus on sustainable solutions were critical success factors.
• Investigating the wildlife conservation measures in Park P16, the integration of community-based surveillance and eco-tourism initiatives resulted in a 10% rise in endangered species populations.
• Exploring the dynamics of the Q17 film festival, the embrace of indie filmmakers and diversification into virtual screenings expanded the global audience base by threefold.
• Through a detailed assessment of the R18 smart city project, data-driven decision-making and public-private partnerships accelerated infrastructure development and improved resident satisfaction.
• A study of the resurgence of traditional crafts in Village S19 underscores that governmental grants combined with e-commerce platforms enabled artisans to reach global markets and triple their income.
• By analyzing the mental health initiative in University T20, the introduction of peer counseling and mindfulness workshops led to a 30% decrease in reported student stress levels.
• In evaluating the U21 sustainable farming project, the practice of crop rotation and organic pest control methods doubled yields without compromising soil health.
• A deep dive into the V22 robotics industry shows that investments in research and development, coupled with industry-academia partnerships, positioned the region as a global leader in automation solutions.
• The case study of the W23 urban renewal initiative reveals that preserving historical sites while integrating modern amenities revitalized the district and boosted tourism by 40%
• Exploring the telehealth revolution in Hospital X24, it’s evident that user-centric design coupled with real-time patient support drastically reduced waiting times and enhanced patient satisfaction.
• A review of the Z25 green tech startup’s rise showcases how tapping into emerging markets and prioritizing local adaptations enabled a 250% growth rate over two years.
• By analyzing the Y26 literary festival’s global success, forging partnerships with international publishers and leveraging livestreamed sessions captured a diversified and engaged global readership.
• In evaluating the urban art projects of City A27, integrating community artists and sourcing local materials led to culturally resonant artworks and rejuvenated public spaces.
• The detailed study of B28’s freshwater conservation strategies highlights that community education, combined with sustainable fishing practices, restored marine life balance within a decade.
• Through a comprehensive look at the C29 space tech firm’s accomplishments, early investments in satellite miniaturization positioned it as a front-runner in commercial space solutions.
• By delving into the digital transformation of Retailer D30, the integration of augmented reality for virtual try-ons significantly boosted online sales and reduced return rates.
• A study of the E31 desert afforestation initiative reveals that harnessing native drought-resistant flora and community-based irrigation systems successfully greened over 10,000 hectares.
• Exploring F32’s inclusive education reforms, a curriculum designed with multi-modal teaching techniques led to improved learning outcomes for differently-abled students.
• In examining the eco-tourism drive of Island G33, maintaining a balance between visitor volume and ecological sustainability ensured steady revenue without environmental degradation.
• Analyzing the H34 online gaming platform’s surge in popularity, community engagement features and regional game localization were instrumental in its global user base expansion.
• A review of the I35 urban cycling initiative shows that creating cyclist-friendly infrastructure, coupled with public awareness campaigns, led to a 20% increase in daily cycling commuters.
• In studying J36’s public library modernization project, the fusion of digital archives with interactive learning zones increased visitor numbers and enhanced community learning.
• By evaluating the K37 corporate wellness program, a holistic approach encompassing mental health, fitness, and nutrition resulted in a 15% reduction in employee sick days.
• A detailed look at the L38 organic coffee farming cooperative identifies that fair-trade certifications and eco-friendly processing techniques doubled farmer profits and market reach.
• Exploring the M39 microfinance model in developing regions shows that leveraging mobile technology and community leaders made financial services accessible to previously unbanked populations.
• The case study of N40’s anti-pollution drive reveals that using technology for real-time air quality monitoring and public alerts led to actionable civic interventions and clearer skies.
• Analyzing the O41 cultural dance revival initiative, collaborations with schools and televised events reintroduced traditional dances to younger generations, preserving cultural heritage.
• Through studying the P42 renewable energy project, community-owned solar and wind farms not only achieved energy self-sufficiency but also created local employment opportunities.
• By examining Q43’s digital archival project, crowdsourcing contributions and integrating multimedia storytelling resurrected historical narratives for a global digital audience.
• In reviewing the R44 disaster response initiative, utilizing drones and AI-driven analytics for real-time situation assessment led to a 30% faster rescue response.
• Exploring the success of the S45 women’s empowerment project, localized workshops and financial literacy programs led to the establishment of over 500 women-led businesses.
• Analyzing the T46 urban farming revolution, rooftop gardens and vertical farming technologies not only reduced the carbon footprint but also bolstered local food security.
• Through a detailed examination of U47’s mental health awareness campaign, leveraging celebrity ambassadors and social media channels destigmatized mental health discussions among young adults.
• The study of V48’s coastal conservation initiative reveals that coral transplantation and sustainable tourism practices significantly enhanced marine biodiversity and local livelihoods.
• By scrutinizing the W49 digital arts program, collaborations with global tech firms and virtual exhibitions brought contemporary art to a wider and more diversified audience.
• In evaluating the X50 grassroots sports initiative, talent scouting at school levels and offering specialized training camps led to a surge in regional sports achievements.
• Exploring the Y51 urban greenery project, the symbiotic integration of flora with urban structures, like bus stops and building facades, transformed the cityscape and improved air quality.
• Through analyzing the Z52 elderly wellness initiative, mobile health check-ups and community gathering events significantly improved the well-being and social connectedness of seniors.
• A deep dive into A53’s tech literacy drive for rural regions showcases that mobile classrooms and gamified learning tools bridged the digital divide, empowering communities.
• Investigating B54’s smart waste management project, sensor-fitted bins and data-driven route optimization for collection trucks minimized operational costs and improved city cleanliness.
• The case study of C55’s heritage restoration initiative highlights that a blend of traditional craftsmanship with modern conservation techniques revitalized historical landmarks, boosting tourism.
• In studying D56’s alternative education model, experiential outdoor learning and community projects fostered holistic student development and real-world problem-solving skills.
• By analyzing E57’s urban transit solution, electric buses paired with dynamic route algorithms resulted in reduced traffic congestion and a decrease in emissions.
• The examination of F58’s sustainable fashion movement indicates that upcycling workshops and eco-conscious designer collaborations led to a greener fashion industry with reduced waste.
• Through a deep dive into G59’s wildlife rehabilitation project, mobile veterinary units and habitat restoration measures significantly increased the population of endangered species.
• In assessing H60’s collaborative workspace model, creating modular designs and fostering community events led to increased startup incubation and knowledge exchange.
• Studying the I61 teletherapy initiative, the integration of wearable tech for biometric feedback and real-time counseling support made mental health care more accessible and tailored.
• The review of J62’s community theater resurgence underlines that offering free training workshops and forging school partnerships enriched cultural landscapes and nurtured local talent.
• By evaluating K63’s clean water initiative in remote areas, solar-powered desalination units and community-led maintenance ensured uninterrupted access to potable water.
• Exploring the L64 sustainable architecture movement, it’s evident that the incorporation of passive solar design and green roofs reduced building energy consumption by up to 40%.
• Through a detailed analysis of the M65 virtual reality (VR) in education program, integrating VR expeditions and interactive simulations led to a 20% increase in student comprehension.
• The study of N66’s eco-village development project reveals that community-owned renewable energy systems and permaculture designs fostered self-sufficiency and resilience.
• By reviewing the O67’s inclusive playground initiative, universally designed play equipment and sensory-friendly zones catered to children of all abilities, promoting inclusivity and joy.
• Investigating the P68’s digital heritage preservation, utilizing 3D scanning and augmented reality brought ancient monuments and artifacts to life for global audiences.
• By scrutinizing the Q69’s local organic produce movement, direct farmer-to-consumer platforms and community-supported agriculture initiatives revitalized local economies and promoted healthy living.
• A deep dive into the R70’s urban beekeeping project indicates that rooftop apiaries and bee-friendly green spaces boosted pollinator populations, benefiting both biodiversity and urban agriculture.
• In evaluating the S71’s community radio station initiative, platforms that prioritized local news and indigenous languages fostered civic participation and cultural pride.
• Exploring the success of T72’s renewable energy transition, investments in grid-tied wind and solar farms led to the region achieving carbon neutrality within a decade.
• The review of U73’s zero-waste community challenge highlights that community workshops on composting, recycling, and upcycling drastically reduced landfill contributions and elevated environmental consciousness.

These statements encompass a diverse range of endeavors, from technological innovations and educational transformations to environmental conservation and cultural preservation. Each thesis offers a concise yet compelling entry point, illustrating the multifaceted nature of case studies and their potential to drive change across various sectors.

Case Study Thesis Statement Example for Argumentative Essay

An argumentative essay’s thesis statement presents a debatable claim about a particular scenario or situation, seeking to persuade the reader of its validity. It combines evidence from the case study with a clear stance on the matter, aiming to convince through both factual data and logical reasoning.

• Despite the surge in e-commerce, a case study on Brick & Mortar Retail Y1 reveals that experiential in-store shopping can significantly boost customer loyalty and overall sales.
• Examining the X2 city’s public transport model, it’s evident that prioritizing bicycles over cars results in healthier urban environments and happier citizens.
• By studying vegan diets through the Z3 health initiative, there is undeniable evidence that plant-based diets lead to improved overall health metrics when compared to omnivorous diets.
• Through a deep dive into the A4’s shift to remote work, productivity levels and employee well-being evidently increase when offered flexible work arrangements.
• In the debate over renewable versus fossil fuels, the B5 country’s successful transition showcases the undeniable economic and environmental advantages of renewable energy.
• Analyzing the C6 city’s urban greening project, it’s clear that community gardens play a pivotal role in crime reduction and social cohesion.
• A study on the D7’s educational reforms reveals that continuous assessment, as opposed to one-off exams, offers a more comprehensive understanding of student capabilities.
• By evaluating the E8’s plastic ban initiative, environmental rejuvenation and improved public health metrics affirm the necessity of eliminating single-use plastics.
• Exploring the F9’s universal healthcare model, there’s a robust argument that public health services lead to more equitable societies and better health outcomes.
• The success of the G10’s work-life balance policies underscores that a shorter workweek can lead to heightened productivity and enhanced employee satisfaction.

Case Study Thesis Statement Example for Research Paper

Case Study for  research paper thesis statement serves as a central hypothesis or primary insight derived from the chosen case. It succinctly captures the essence of the research findings and the implications they might hold, offering a foundation upon which the paper’s arguments and conclusions are built.

• An extensive analysis of the H11 city’s water conservation techniques presents innovative methodologies that have achieved a 30% reduction in urban water consumption.
• Investigating the I12’s coral reef restoration projects, recent advancements in marine biology have been instrumental in rejuvenating dying reef ecosystems.
• The in-depth research on J13’s forest management strategies reveals the successful intersection of indigenous knowledge and modern conservation techniques.
• A comprehensive study on the K14’s biodynamic farming practices demonstrates their impact on soil health and crop yield enhancement.
• Researching L15’s approach to mental health, community-based interventions, and localized therapy models have shown significant efficacy.
• By delving into M16’s urban waste management, innovative recycling technologies are revolutionizing urban sustainability and waste reduction.
• The examination of N17’s digital literacy programs for seniors demonstrates adaptive pedagogies tailored for older learners, resulting in improved tech proficiency.
• In-depth research on O18’s tidal energy projects presents groundbreaking advancements in harnessing marine energy for sustainable power generation.
• A study of P19’s green building materials showcases the potential for sustainable construction without compromising on durability or aesthetics.
• Extensive research on Q20’s citizen science initiatives has shed light on the profound impact of public engagement in scientific discoveries.

Case Study Essay Thesis Statement Example for Essay Writing

In essay writing, the case study thesis statement offers a central idea or perspective about the case at hand. It provides a roadmap for readers, indicating the essay’s direction and focus, and typically draws on the unique aspects of the case study to make broader observations or arguments.

• The revitalization of the R21 town square serves as a testament to the profound impact of urban design on community engagement and cultural preservation.
• Exploring the journey of S22’s artisanal chocolate brand offers insights into the nuances of combining traditional recipes with modern marketing.
• The success story of the T23’s community library initiative illustrates the timeless importance of books and shared spaces in fostering community spirit.
• Through a narrative on U24’s eco-tourism model, the delicate balance between conservation, commerce, and community involvement comes to the fore.
• V25’s transformation from a tech-averse community to a digital hub showcases the ripple effects of targeted tech education and infrastructure investment.
• The tale of W26’s fight against deforestation illuminates the intertwining of grassroots activism, governmental policy, and global collaboration.
• X27’s journey in preserving endangered languages paints a vivid picture of the role of technology in safeguarding cultural heritage.
• Diving into Y28’s transition from coal to solar energy portrays the challenges, victories, and transformative power of collective will.
• The story of Z29’s grassroots sports academy gives a glimpse into the potential of talent nurtured through community support and dedication.
• A narrative on A30’s urban art movement elucidates the transformative power of public art in redefining cityscapes and fostering local talent.

Does a case study have a thesis statement?

Yes, a case study often has a thesis statement, especially if it is intended for academic or formal publication. While the nature of case studies is to explore, analyze, and present specific situations or phenomena in detail, a thesis statement helps provide direction, focus, and clarity to the study. It serves as a clear indication of the main point or argument the author wishes to make, derived from their analysis of the case.

What is a thesis statement for a case study analysis?

A thesis statement for a case study analysis is a concise summary of the main insight or argument derived from reviewing and analyzing a particular case. It should be specific and based on the evidence found within the study, aiming to encapsulate the core findings or implications. This statement will guide the reader’s understanding of what the case study is ultimately trying to convey or the conclusions the author has drawn from their analysis.

How do you write a thesis statement for a case study? – Step by Step Guide

• Select Your Case: Before you can write a thesis statement, you need to choose a case that offers enough substance and relevance. Your case should be representative or unique enough to provide meaningful insights.
• Conduct Thorough Research: Dive deep into the details of your case. Understand its history, the key players involved, its significance, and its outcomes.
• Identify Key Themes or Patterns: As you research, note down recurring themes or patterns that emerge. These will often hint at the broader implications of the case.
• Formulate Your Argument: Based on your observations, craft an argument or insight about the case. Ask yourself what the case reveals about a broader phenomenon or what makes this case particularly significant.
• Be Specific: Your thesis statement should be precise. Avoid vague or overly broad statements. Instead, focus on the specific insights or conclusions you’ve drawn from the case.
• Write and Refine: Draft your thesis statement. It should be one or two sentences long, capturing the essence of your argument. Revisit and refine it to ensure clarity and conciseness.

Tips for Writing a Case Study Thesis Statement

• Keep it Focused: Your thesis statement should be concise and directly related to the case in question. Avoid generalities or unrelated observations.
• Be Evidence-Based: Ensure that your thesis statement can be backed up with evidence from the case study. It should be a result of your analysis, not a preconceived notion.
• Avoid Jargon: Keep your thesis statement accessible. It should be understandable even to those unfamiliar with the specifics of the case.
• Stay Objective: While your thesis statement will represent your analysis and perspective, it’s crucial to base it on facts and avoid unnecessary biases.
• Seek Feedback: Once you’ve crafted your thesis statement, share it with peers or mentors. Their feedback can help refine your thesis and ensure it captures the essence of your case study effectively.

In conclusion, while a case study delves deep into specific instances, having a clear thesis statement is crucial to give direction to your study and offer readers a concise understanding of the case’s significance and your analysis.

Text prompt

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Case Study Research Method in Psychology

Saul McLeod, PhD

Editor-in-Chief for Simply Psychology

BSc (Hons) Psychology, MRes, PhD, University of Manchester

Saul McLeod, PhD., is a qualified psychology teacher with over 18 years of experience in further and higher education. He has been published in peer-reviewed journals, including the Journal of Clinical Psychology.

Learn about our Editorial Process

Olivia Guy-Evans, MSc

Associate Editor for Simply Psychology

BSc (Hons) Psychology, MSc Psychology of Education

Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.

On This Page:

Case studies are in-depth investigations of a person, group, event, or community. Typically, data is gathered from various sources using several methods (e.g., observations & interviews).

The case study research method originated in clinical medicine (the case history, i.e., the patient’s personal history). In psychology, case studies are often confined to the study of a particular individual.

The information is mainly biographical and relates to events in the individual’s past (i.e., retrospective), as well as to significant events that are currently occurring in his or her everyday life.

The case study is not a research method, but researchers select methods of data collection and analysis that will generate material suitable for case studies.

Freud (1909a, 1909b) conducted very detailed investigations into the private lives of his patients in an attempt to both understand and help them overcome their illnesses.

This makes it clear that the case study is a method that should only be used by a psychologist, therapist, or psychiatrist, i.e., someone with a professional qualification.

There is an ethical issue of competence. Only someone qualified to diagnose and treat a person can conduct a formal case study relating to atypical (i.e., abnormal) behavior or atypical development.

 Famous Case Studies

• Anna O – One of the most famous case studies, documenting psychoanalyst Josef Breuer’s treatment of “Anna O” (real name Bertha Pappenheim) for hysteria in the late 1800s using early psychoanalytic theory.
• Little Hans – A child psychoanalysis case study published by Sigmund Freud in 1909 analyzing his five-year-old patient Herbert Graf’s house phobia as related to the Oedipus complex.
• Bruce/Brenda – Gender identity case of the boy (Bruce) whose botched circumcision led psychologist John Money to advise gender reassignment and raise him as a girl (Brenda) in the 1960s.
• Genie Wiley – Linguistics/psychological development case of the victim of extreme isolation abuse who was studied in 1970s California for effects of early language deprivation on acquiring speech later in life.
• Phineas Gage – One of the most famous neuropsychology case studies analyzes personality changes in railroad worker Phineas Gage after an 1848 brain injury involving a tamping iron piercing his skull.

Clinical Case Studies

• Studying the effectiveness of psychotherapy approaches with an individual patient
• Assessing and treating mental illnesses like depression, anxiety disorders, PTSD
• Neuropsychological cases investigating brain injuries or disorders

Child Psychology Case Studies

• Studying psychological development from birth through adolescence
• Cases of learning disabilities, autism spectrum disorders, ADHD
• Effects of trauma, abuse, deprivation on development

Types of Case Studies

• Explanatory case studies : Used to explore causation in order to find underlying principles. Helpful for doing qualitative analysis to explain presumed causal links.
• Exploratory case studies : Used to explore situations where an intervention being evaluated has no clear set of outcomes. It helps define questions and hypotheses for future research.
• Descriptive case studies : Describe an intervention or phenomenon and the real-life context in which it occurred. It is helpful for illustrating certain topics within an evaluation.
• Multiple-case studies : Used to explore differences between cases and replicate findings across cases. Helpful for comparing and contrasting specific cases.
• Intrinsic : Used to gain a better understanding of a particular case. Helpful for capturing the complexity of a single case.
• Collective : Used to explore a general phenomenon using multiple case studies. Helpful for jointly studying a group of cases in order to inquire into the phenomenon.

Where Do You Find Data for a Case Study?

There are several places to find data for a case study. The key is to gather data from multiple sources to get a complete picture of the case and corroborate facts or findings through triangulation of evidence. Most of this information is likely qualitative (i.e., verbal description rather than measurement), but the psychologist might also collect numerical data.

1. Primary sources

• Interviews – Interviewing key people related to the case to get their perspectives and insights. The interview is an extremely effective procedure for obtaining information about an individual, and it may be used to collect comments from the person’s friends, parents, employer, workmates, and others who have a good knowledge of the person, as well as to obtain facts from the person him or herself.
• Observations – Observing behaviors, interactions, processes, etc., related to the case as they unfold in real-time.
• Documents & Records – Reviewing private documents, diaries, public records, correspondence, meeting minutes, etc., relevant to the case.

2. Secondary sources

• News/Media – News coverage of events related to the case study.
• Academic articles – Journal articles, dissertations etc. that discuss the case.
• Government reports – Official data and records related to the case context.
• Books/films – Books, documentaries or films discussing the case.

3. Archival records

Searching historical archives, museum collections and databases to find relevant documents, visual/audio records related to the case history and context.

Public archives like newspapers, organizational records, photographic collections could all include potentially relevant pieces of information to shed light on attitudes, cultural perspectives, common practices and historical contexts related to psychology.

4. Organizational records

Organizational records offer the advantage of often having large datasets collected over time that can reveal or confirm psychological insights.

Of course, privacy and ethical concerns regarding confidential data must be navigated carefully.

However, with proper protocols, organizational records can provide invaluable context and empirical depth to qualitative case studies exploring the intersection of psychology and organizations.

• Organizational/industrial psychology research : Organizational records like employee surveys, turnover/retention data, policies, incident reports etc. may provide insight into topics like job satisfaction, workplace culture and dynamics, leadership issues, employee behaviors etc.
• Clinical psychology : Therapists/hospitals may grant access to anonymized medical records to study aspects like assessments, diagnoses, treatment plans etc. This could shed light on clinical practices.
• School psychology : Studies could utilize anonymized student records like test scores, grades, disciplinary issues, and counseling referrals to study child development, learning barriers, effectiveness of support programs, and more.

How do I Write a Case Study in Psychology?

Follow specified case study guidelines provided by a journal or your psychology tutor. General components of clinical case studies include: background, symptoms, assessments, diagnosis, treatment, and outcomes. Interpreting the information means the researcher decides what to include or leave out. A good case study should always clarify which information is the factual description and which is an inference or the researcher’s opinion.

1. Introduction

• Provide background on the case context and why it is of interest, presenting background information like demographics, relevant history, and presenting problem.
• Compare briefly to similar published cases if applicable. Clearly state the focus/importance of the case.

2. Case Presentation

• Describe the presenting problem in detail, including symptoms, duration,and impact on daily life.
• Include client demographics like age and gender, information about social relationships, and mental health history.
• Describe all physical, emotional, and/or sensory symptoms reported by the client.
• Use patient quotes to describe the initial complaint verbatim. Follow with full-sentence summaries of relevant history details gathered, including key components that led to a working diagnosis.
• Summarize clinical exam results, namely orthopedic/neurological tests, imaging, lab tests, etc. Note actual results rather than subjective conclusions. Provide images if clearly reproducible/anonymized.
• Clearly state the working diagnosis or clinical impression before transitioning to management.

3. Management and Outcome

• Indicate the total duration of care and number of treatments given over what timeframe. Use specific names/descriptions for any therapies/interventions applied.
• Present the results of the intervention,including any quantitative or qualitative data collected.
• For outcomes, utilize visual analog scales for pain, medication usage logs, etc., if possible. Include patient self-reports of improvement/worsening of symptoms. Note the reason for discharge/end of care.

4. Discussion

• Analyze the case, exploring contributing factors, limitations of the study, and connections to existing research.
• Analyze the effectiveness of the intervention,considering factors like participant adherence, limitations of the study, and potential alternative explanations for the results.
• Identify any questions raised in the case analysis and relate insights to established theories and current research if applicable. Avoid definitive claims about physiological explanations.
• Offer clinical implications, and suggest future research directions.

5. Additional Items

• Thank specific assistants for writing support only. No patient acknowledgments.
• References should directly support any key claims or quotes included.
• Use tables/figures/images only if substantially informative. Include permissions and legends/explanatory notes.
• Provides detailed (rich qualitative) information.
• Provides insight for further research.
• Permitting investigation of otherwise impractical (or unethical) situations.

Case studies allow a researcher to investigate a topic in far more detail than might be possible if they were trying to deal with a large number of research participants (nomothetic approach) with the aim of ‘averaging’.

Because of their in-depth, multi-sided approach, case studies often shed light on aspects of human thinking and behavior that would be unethical or impractical to study in other ways.

Research that only looks into the measurable aspects of human behavior is not likely to give us insights into the subjective dimension of experience, which is important to psychoanalytic and humanistic psychologists.

Case studies are often used in exploratory research. They can help us generate new ideas (that might be tested by other methods). They are an important way of illustrating theories and can help show how different aspects of a person’s life are related to each other.

The method is, therefore, important for psychologists who adopt a holistic point of view (i.e., humanistic psychologists ).

Limitations

• Lacking scientific rigor and providing little basis for generalization of results to the wider population.
• Researchers’ own subjective feelings may influence the case study (researcher bias).
• Difficult to replicate.
• Time-consuming and expensive.
• The volume of data, together with the time restrictions in place, impacted the depth of analysis that was possible within the available resources.

Because a case study deals with only one person/event/group, we can never be sure if the case study investigated is representative of the wider body of “similar” instances. This means the conclusions drawn from a particular case may not be transferable to other settings.

Because case studies are based on the analysis of qualitative (i.e., descriptive) data , a lot depends on the psychologist’s interpretation of the information she has acquired.

This means that there is a lot of scope for Anna O , and it could be that the subjective opinions of the psychologist intrude in the assessment of what the data means.

For example, Freud has been criticized for producing case studies in which the information was sometimes distorted to fit particular behavioral theories (e.g., Little Hans ).

This is also true of Money’s interpretation of the Bruce/Brenda case study (Diamond, 1997) when he ignored evidence that went against his theory.

Breuer, J., & Freud, S. (1895).  Studies on hysteria . Standard Edition 2: London.

Curtiss, S. (1981). Genie: The case of a modern wild child .

Diamond, M., & Sigmundson, K. (1997). Sex Reassignment at Birth: Long-term Review and Clinical Implications. Archives of Pediatrics & Adolescent Medicine , 151(3), 298-304

Freud, S. (1909a). Analysis of a phobia of a five year old boy. In The Pelican Freud Library (1977), Vol 8, Case Histories 1, pages 169-306

Freud, S. (1909b). Bemerkungen über einen Fall von Zwangsneurose (Der “Rattenmann”). Jb. psychoanal. psychopathol. Forsch ., I, p. 357-421; GW, VII, p. 379-463; Notes upon a case of obsessional neurosis, SE , 10: 151-318.

Harlow J. M. (1848). Passage of an iron rod through the head.  Boston Medical and Surgical Journal, 39 , 389–393.

Harlow, J. M. (1868).  Recovery from the Passage of an Iron Bar through the Head .  Publications of the Massachusetts Medical Society. 2  (3), 327-347.

Money, J., & Ehrhardt, A. A. (1972).  Man & Woman, Boy & Girl : The Differentiation and Dimorphism of Gender Identity from Conception to Maturity. Baltimore, Maryland: Johns Hopkins University Press.

Money, J., & Tucker, P. (1975). Sexual signatures: On being a man or a woman.

Further Information

• Case Study Approach
• Case Study Method
• Enhancing the Quality of Case Studies in Health Services Research
• “We do things together” A case study of “couplehood” in dementia
• Using mixed methods for evaluating an integrative approach to cancer care: a case study

Title Page Setup

A title page is required for all APA Style papers. There are both student and professional versions of the title page. Students should use the student version of the title page unless their instructor or institution has requested they use the professional version. APA provides a student title page guide (PDF, 199KB) to assist students in creating their title pages.

Student title page

The student title page includes the paper title, author names (the byline), author affiliation, course number and name for which the paper is being submitted, instructor name, assignment due date, and page number, as shown in this example.

Title page setup is covered in the seventh edition APA Style manuals in the Publication Manual Section 2.3 and the Concise Guide Section 1.6

Related handouts

• Student Title Page Guide (PDF, 263KB)
• Student Paper Setup Guide (PDF, 3MB)

Student papers do not include a running head unless requested by the instructor or institution.

Follow the guidelines described next to format each element of the student title page.

Professional title page

The professional title page includes the paper title, author names (the byline), author affiliation(s), author note, running head, and page number, as shown in the following example.

Follow the guidelines described next to format each element of the professional title page.

Organizing Your Social Sciences Research Paper: Writing a Case Study

• Purpose of Guide
• Design Flaws to Avoid
• Independent and Dependent Variables
• Glossary of Research Terms
• Narrowing a Topic Idea
• Broadening a Topic Idea
• Extending the Timeliness of a Topic Idea
• Academic Writing Style
• Choosing a Title
• Making an Outline
• Paragraph Development
• Executive Summary
• The C.A.R.S. Model
• Background Information
• The Research Problem/Question
• Theoretical Framework
• Citation Tracking
• Content Alert Services
• Evaluating Sources
• Reading Research Effectively
• Primary Sources
• Secondary Sources
• Tiertiary Sources
• What Is Scholarly vs. Popular?
• Qualitative Methods
• Quantitative Methods
• Using Non-Textual Elements
• Limitations of the Study
• Common Grammar Mistakes
• Writing Concisely
• Avoiding Plagiarism
• Footnotes or Endnotes?
• Further Readings
• Annotated Bibliography
• Dealing with Nervousness
• Using Visual Aids
• Grading Someone Else's Paper
• Types of Structured Group Activities
• Group Project Survival Skills
• Multiple Book Review Essay
• Reviewing Collected Essays
• Writing a Case Study
• About Informed Consent
• Writing Field Notes
• Writing a Policy Memo
• Writing a Research Proposal
• Bibliography

The term case study refers to both a method of analysis and a specific research design for examining a problem, both of which are used in most circumstances to generalize across populations. This tab focuses on the latter--how to design and organize a research paper in the social sciences that analyzes a specific case.

A case study research paper examines a person, place, event, phenomenon, or other type of subject of analysis in order to extrapolate  key themes and results that help predict future trends, illuminate previously hidden issues that can be applied to practice, and/or provide a means for understanding an important research problem with greater clarity. A case study paper usually examines a single subject of analysis, but case study papers can also be designed as a comparative investigation that shows relationships between two or among more than two subjects. The methods used to study a case can rest within a quantitative, qualitative, or mixed-method investigative paradigm.

Case Studies . Writing@CSU. Colorado State University; Mills, Albert J. , Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010 ; “What is a Case Study?” In Swanborn, Peter G. Case Study Research: What, Why and How? London: SAGE, 2010.

How to Approach Writing a Case Study Research Paper

General information about how to choose a topic to investigate can be found under the " Choosing a Research Problem " tab in this writing guide. Review this page because it may help you identify a subject of analysis that can be investigated using a single case study design.

However, identifying a case to investigate involves more than choosing the research problem . A case study encompasses a problem contextualized around the application of in-depth analysis, interpretation, and discussion, often resulting in specific recommendations for action or for improving existing conditions. As Seawright and Gerring note, practical considerations such as time and access to information can influence case selection, but these issues should not be the sole factors used in describing the methodological justification for identifying a particular case to study. Given this, selecting a case includes considering the following:

• Does the case represent an unusual or atypical example of a research problem that requires more in-depth analysis? Cases often represent a topic that rests on the fringes of prior investigations because the case may provide new ways of understanding the research problem. For example, if the research problem is to identify strategies to improve policies that support girl's access to secondary education in predominantly Muslim nations, you could consider using Azerbaijan as a case study rather than selecting a more obvious nation in the Middle East. Doing so may reveal important new insights into recommending how governments in other predominantly Muslim nations can formulate policies that support improved access to education for girls.
• Does the case provide important insight or illuminate a previously hidden problem? In-depth analysis of a case can be based on the hypothesis that the case study will reveal trends or issues that have not been exposed in prior research or will reveal new and important implications for practice. For example, anecdotal evidence may suggest drug use among homeless veterans is related to their patterns of travel throughout the day. Assuming prior studies have not looked at individual travel choices as a way to study access to illicit drug use, a case study that observes a homeless veteran could reveal how issues of personal mobility choices facilitate regular access to illicit drugs. Note that it is important to conduct a thorough literature review to ensure that your assumption about the need to reveal new insights or previously hidden problems is valid and evidence-based.
• Does the case challenge and offer a counter-point to prevailing assumptions? Over time, research on any given topic can fall into a trap of developing assumptions based on outdated studies that are still applied to new or changing conditions or the idea that something should simply be accepted as "common sense," even though the issue has not been thoroughly tested in practice. A case may offer you an opportunity to gather evidence that challenges prevailing assumptions about a research problem and provide a new set of recommendations applied to practice that have not been tested previously. For example, perhaps there has been a long practice among scholars to apply a particular theory in explaining the relationship between two subjects of analysis. Your case could challenge this assumption by applying an innovative theoretical framework [perhaps borrowed from another discipline] to the study a case in order to explore whether this approach offers new ways of understanding the research problem. Taking a contrarian stance is one of the most important ways that new knowledge and understanding develops from existing literature.
• Does the case provide an opportunity to pursue action leading to the resolution of a problem? Another way to think about choosing a case to study is to consider how the results from investigating a particular case may result in findings that reveal ways in which to resolve an existing or emerging problem. For example, studying the case of an unforeseen incident, such as a fatal accident at a railroad crossing, can reveal hidden issues that could be applied to preventative measures that contribute to reducing the chance of accidents in the future. In this example, a case study investigating the accident could lead to a better understanding of where to strategically locate additional signals at other railroad crossings in order to better warn drivers of an approaching train, particularly when visibility is hindered by heavy rain, fog, or at night.
• Does the case offer a new direction in future research? A case study can be used as a tool for exploratory research that points to a need for further examination of the research problem. A case can be used when there are few studies that help predict an outcome or that establish a clear understanding about how best to proceed in addressing a problem. For example, after conducting a thorough literature review [very important!], you discover that little research exists showing the ways in which women contribute to promoting water conservation in rural communities of Uganda. A case study of how women contribute to saving water in a particular village can lay the foundation for understanding the need for more thorough research that documents how women in their roles as cooks and family caregivers think about water as a valuable resource within their community throughout rural regions of east Africa. The case could also point to the need for scholars to apply feminist theories of work and family to the issue of water conservation.

Eisenhardt, Kathleen M. “Building Theories from Case Study Research.” Academy of Management Review 14 (October 1989): 532-550; Emmel, Nick. Sampling and Choosing Cases in Qualitative Research: A Realist Approach . Thousand Oaks, CA: SAGE Publications, 2013; Gerring, John. “What Is a Case Study and What Is It Good for?” American Political Science Review 98 (May 2004): 341-354; Mills, Albert J. , Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010; Seawright, Jason and John Gerring. "Case Selection Techniques in Case Study Research." Political Research Quarterly 61 (June 2008): 294-308.

Structure and Writing Style

The purpose of a paper in the social sciences designed around a case study is to thoroughly investigate a subject of analysis in order to reveal a new understanding about the research problem and, in so doing, contributing new knowledge to what is already known from previous studies. In applied social sciences disciplines [e.g., education, social work, public administration, etc.], case studies may also be used to reveal best practices, highlight key programs, or investigate interesting aspects of professional work. In general, the structure of a case study research paper is not all that different from a standard college-level research paper. However, there are subtle differences you should be aware of. Here are the key elements to organizing and writing a case study research paper.

I.  Introduction

As with any research paper, your introduction should serve as a roadmap for your readers to ascertain the scope and purpose of your study . The introduction to a case study research paper, however, should not only describe the research problem and its significance, but you should also succinctly describe why the case is being used and how it relates to addressing the problem. The two elements should be linked. With this in mind, a good introduction answers these four questions:

• What was I studying? Describe the research problem and describe the subject of analysis you have chosen to address the problem. Explain how they are linked and what elements of the case will help to expand knowledge and understanding about the problem.
• Why was this topic important to investigate? Describe the significance of the research problem and state why a case study design and the subject of analysis that the paper is designed around is appropriate in addressing the problem.
• What did we know about this topic before I did this study? Provide background that helps lead the reader into the more in-depth literature review to follow. If applicable, summarize prior case study research applied to the research problem and why it fails to adequately address the research problem. Describe why your case will be useful. If no prior case studies have been used to address the research problem, explain why you have selected this subject of analysis.
• How will this study advance new knowledge or new ways of understanding? Explain why your case study will be suitable in helping to expand knowledge and understanding about the research problem.

Each of these questions should be addressed in no more than a few paragraphs. Exceptions to this can be when you are addressing a complex research problem or subject of analysis that requires more in-depth background information.

II.  Literature Review

The literature review for a case study research paper is generally structured the same as it is for any college-level research paper. The difference, however, is that the literature review is focused on providing background information and  enabling historical interpretation of the subject of analysis in relation to the research problem the case is intended to address . This includes synthesizing studies that help to:

• Place relevant works in the context of their contribution to understanding the case study being investigated . This would include summarizing studies that have used a similar subject of analysis to investigate the research problem. If there is literature using the same or a very similar case to study, you need to explain why duplicating past research is important [e.g., conditions have changed; prior studies were conducted long ago, etc.].
• Describe the relationship each work has to the others under consideration that informs the reader why this case is applicable . Your literature review should include a description of any works that support using the case to study the research problem and the underlying research questions.
• Identify new ways to interpret prior research using the case study . If applicable, review any research that has examined the research problem using a different research design. Explain how your case study design may reveal new knowledge or a new perspective or that can redirect research in an important new direction.
• Resolve conflicts amongst seemingly contradictory previous studies . This refers to synthesizing any literature that points to unresolved issues of concern about the research problem and describing how the subject of analysis that forms the case study can help resolve these existing contradictions.
• Point the way in fulfilling a need for additional research . Your review should examine any literature that lays a foundation for understanding why your case study design and the subject of analysis around which you have designed your study may reveal a new way of approaching the research problem or offer a perspective that points to the need for additional research.
• Expose any gaps that exist in the literature that the case study could help to fill . Summarize any literature that not only shows how your subject of analysis contributes to understanding the research problem, but how your case contributes to a new way of understanding the problem that prior research has failed to do.
• Locate your own research within the context of existing literature [very important!] . Collectively, your literature review should always place your case study within the larger domain of prior research about the problem. The overarching purpose of reviewing pertinent literature in a case study paper is to demonstrate that you have thoroughly identified and synthesized prior studies in the context of explaining the relevance of the case in addressing the research problem.

III.  Method

In this section, you explain why you selected a particular subject of analysis to study and the strategy you used to identify and ultimately decide that your case was appropriate in addressing the research problem. The way you describe the methods used varies depending on the type of subject of analysis that frames your case study.

If your subject of analysis is an incident or event . In the social and behavioral sciences, the event or incident that represents the case to be studied is usually bounded by time and place, with a clear beginning and end and with an identifiable location or position relative to its surroundings. The subject of analysis can be a rare or critical event or it can focus on a typical or regular event. The purpose of studying a rare event is to illuminate new ways of thinking about the broader research problem or to test a hypothesis. Critical incident case studies must describe the method by which you identified the event and explain the process by which you determined the validity of this case to inform broader perspectives about the research problem or to reveal new findings. However, the event does not have to be a rare or uniquely significant to support new thinking about the research problem or to challenge an existing hypothesis. For example, Walo, Bull, and Breen conducted a case study to identify and evaluate the direct and indirect economic benefits and costs of a local sports event in the City of Lismore, New South Wales, Australia. The purpose of their study was to provide new insights from measuring the impact of a typical local sports event that prior studies could not measure well because they focused on large "mega-events." Whether the event is rare or not, the methods section should include an explanation of the following characteristics of the event: a) when did it take place; b) what were the underlying circumstances leading to the event; c) what were the consequences of the event.

If your subject of analysis is a person. Explain why you selected this particular individual to be studied and describe what experience he or she has had that provides an opportunity to advance new understandings about the research problem. Mention any background about this person which might help the reader understand the significance of his/her experiences that make them worthy of study. This includes describing the relationships this person has had with other people, institutions, and/or events that support using him or her as the subject for a case study research paper. It is particularly important to differentiate the person as the subject of analysis from others and to succinctly explain how the person relates to examining the research problem.

If your subject of analysis is a place. In general, a case study that investigates a place suggests a subject of analysis that is unique or special in some way and that this uniqueness can be used to build new understanding or knowledge about the research problem. A case study of a place must not only describe its various attributes relevant to the research problem [e.g., physical, social, cultural, economic, political, etc.], but you must state the method by which you determined that this place will illuminate new understandings about the research problem. It is also important to articulate why a particular place as the case for study is being used if similar places also exist [i.e., if you are studying patterns of homeless encampments of veterans in open spaces, why study Echo Park in Los Angeles rather than Griffith Park?]. If applicable, describe what type of human activity involving this place makes it a good choice to study [e.g., prior research reveals Echo Park has more homeless veterans].

If your subject of analysis is a phenomenon. A phenomenon refers to a fact, occurrence, or circumstance that can be studied or observed but with the cause or explanation to be in question. In this sense, a phenomenon that forms your subject of analysis can encompass anything that can be observed or presumed to exist but is not fully understood. In the social and behavioral sciences, the case usually focuses on human interaction within a complex physical, social, economic, cultural, or political system. For example, the phenomenon could be the observation that many vehicles used by ISIS fighters are small trucks with English language advertisements on them. The research problem could be that ISIS fighters are difficult to combat because they are highly mobile. The research questions could be how and by what means are these vehicles used by ISIS being supplied to the militants and how might supply lines to these vehicles be cut? How might knowing the suppliers of these trucks from overseas reveal larger networks of collaborators and financial support? A case study of a phenomenon most often encompasses an in-depth analysis of a cause and effect that is grounded in an interactive relationship between people and their environment in some way.

NOTE:   The choice of the case or set of cases to study cannot appear random. Evidence that supports the method by which you identified and chose your subject of analysis should be linked to the findings from the literature review. Be sure to cite any prior studies that helped you determine that the case you chose was appropriate for investigating the research problem.

IV.  Discussion

The main elements of your discussion section are generally the same as any research paper, but centered around interpreting and drawing conclusions about the key findings from your case study. Note that a general social sciences research paper may contain a separate section to report findings. However, in a paper designed around a case study, it is more common to combine a description of the findings with the discussion about their implications. The objectives of your discussion section should include the following:

Reiterate the Research Problem/State the Major Findings Briefly reiterate the research problem you are investigating and explain why the subject of analysis around which you designed the case study were used. You should then describe the findings revealed from your study of the case using direct, declarative, and succinct proclamation of the study results. Highlight any findings that were unexpected or especially profound.

Explain the Meaning of the Findings and Why They are Important Systematically explain the meaning of your case study findings and why you believe they are important. Begin this part of the section by repeating what you consider to be your most important or surprising finding first, then systematically review each finding. Be sure to thoroughly extrapolate what your analysis of the case can tell the reader about situations or conditions beyond the actual case that was studied while, at the same time, being careful not to misconstrue or conflate a finding that undermines the external validity of your conclusions.

Relate the Findings to Similar Studies No study in the social sciences is so novel or possesses such a restricted focus that it has absolutely no relation to previously published research. The discussion section should relate your case study results to those found in other studies, particularly if questions raised from prior studies served as the motivation for choosing your subject of analysis. This is important because comparing and contrasting the findings of other studies helps to support the overall importance of your results and it highlights how and in what ways your case study design and the subject of analysis differs from prior research about the topic.

Consider Alternative Explanations of the Findings It is important to remember that the purpose of social science research is to discover and not to prove. When writing the discussion section, you should carefully consider all possible explanations for the case study results, rather than just those that fit your hypothesis or prior assumptions and biases. Be alert to what the in-depth analysis of the case may reveal about the research problem, including offering a contrarian perspective to what scholars have stated in prior research.

Acknowledge the Study's Limitations You can state the study's limitations in the conclusion section of your paper but describing the limitations of your subject of analysis in the discussion section provides an opportunity to identify the limitations and explain why they are not significant. This part of the discussion section should also note any unanswered questions or issues your case study could not address. More detailed information about how to document any limitations to your research can be found here .

Suggest Areas for Further Research Although your case study may offer important insights about the research problem, there are likely additional questions related to the problem that remain unanswered or findings that unexpectedly revealed themselves as a result of your in-depth analysis of the case. Be sure that the recommendations for further research are linked to the research problem and that you explain why your recommendations are valid in other contexts and based on the original assumptions of your study.

V.  Conclusion

As with any research paper, you should summarize your conclusion in clear, simple language; emphasize how the findings from your case study differs from or supports prior research and why. Do not simply reiterate the discussion section. Provide a synthesis of key findings presented in the paper to show how these converge to address the research problem. If you haven't already done so in the discussion section, be sure to document the limitations of your case study and needs for further research.

The function of your paper's conclusion is to: 1)  restate the main argument supported by the findings from the analysis of your case; 2) clearly state the context, background, and necessity of pursuing the research problem using a case study design in relation to an issue, controversy, or a gap found from reviewing the literature; and, 3) provide a place for you to persuasively and succinctly restate the significance of your research problem, given that the reader has now been presented with in-depth information about the topic.

Consider the following points to help ensure your conclusion is appropriate:

• If the argument or purpose of your paper is complex, you may need to summarize these points for your reader.
• If prior to your conclusion, you have not yet explained the significance of your findings or if you are proceeding inductively, use the conclusion of your paper to describe your main points and explain their significance.
• Move from a detailed to a general level of consideration of the case study's findings that returns the topic to the context provided by the introduction or within a new context that emerges from your case study findings.

Note that, depending on the discipline you are writing in and your professor's preferences, the concluding paragraph may contain your final reflections on the evidence presented applied to practice or on the essay's central research problem. However, the nature of being introspective about the subject of analysis you have investigated will depend on whether you are explicitly asked to express your observations in this way.

Problems to Avoid

Overgeneralization One of the goals of a case study is to lay a foundation for understanding broader trends and issues applied to similar circumstances. However, be careful when drawing conclusions from your case study. They must be evidence-based and grounded in the results of the study; otherwise, it is merely speculation. Looking at a prior example, it would be incorrect to state that a factor in improving girls access to education in Azerbaijan and the policy implications this may have for improving access in other Muslim nations is due to girls access to social media if there is no documentary evidence from your case study to indicate this. There may be anecdotal evidence that retention rates were better for girls who were on social media, but this observation would only point to the need for further research and would not be a definitive finding if this was not a part of your original research agenda.

Failure to Document Limitations No case is going to reveal all that needs to be understood about a research problem. Therefore, just as you have to clearly state the limitations of a general research study , you must describe the specific limitations inherent in the subject of analysis. For example, the case of studying how women conceptualize the need for water conservation in a village in Uganda could have limited application in other cultural contexts or in areas where fresh water from rivers or lakes is plentiful and, therefore, conservation is understood differently than preserving access to a scarce resource.

Failure to Extrapolate All Possible Implications Just as you don't want to over-generalize from your case study findings, you also have to be thorough in the consideration of all possible outcomes or recommendations derived from your findings. If you do not, your reader may question the validity of your analysis, particularly if you failed to document an obvious outcome from your case study research. For example, in the case of studying the accident at the railroad crossing to evaluate where and what types of warning signals should be located, you failed to take into consideration speed limit signage as well as warning signals. When designing your case study, be sure you have thoroughly addressed all aspects of the problem and do not leave gaps in your analysis.

Case Studies . Writing@CSU. Colorado State University; Gerring, John. Case Study Research: Principles and Practices . New York: Cambridge University Press, 2007; Merriam, Sharan B. Qualitative Research and Case Study Applications in Education . Rev. ed. San Francisco, CA: Jossey-Bass, 1998; Miller, Lisa L. “The Use of Case Studies in Law and Social Science Research.” Annual Review of Law and Social Science 14 (2018): TBD; Mills, Albert J., Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010; Putney, LeAnn Grogan. "Case Study." In Encyclopedia of Research Design , Neil J. Salkind, editor. (Thousand Oaks, CA: SAGE Publications, 2010), pp. 116-120; Simons, Helen. Case Study Research in Practice . London: SAGE Publications, 2009;  Kratochwill,  Thomas R. and Joel R. Levin, editors. Single-Case Research Design and Analysis: New Development for Psychology and Education .  Hilldsale, NJ: Lawrence Erlbaum Associates, 1992; Swanborn, Peter G. Case Study Research: What, Why and How? London : SAGE, 2010; Yin, Robert K. Case Study Research: Design and Methods . 6th edition. Los Angeles, CA, SAGE Publications, 2014; Walo, Maree, Adrian Bull, and Helen Breen. “Achieving Economic Benefits at Local Events: A Case Study of a Local Sports Event.” Festival Management and Event Tourism 4 (1996): 95-106.

Writing Tip

At Least Five Misconceptions about Case Study Research

Social science case studies are often perceived as limited in their ability to create new knowledge because they are not randomly selected and findings cannot be generalized to larger populations. Flyvbjerg examines five misunderstandings about case study research and systematically "corrects" each one. To quote, these are:

Misunderstanding 1 :  General, theoretical [context-independent knowledge is more valuable than concrete, practical (context-dependent) knowledge. Misunderstanding 2 :  One cannot generalize on the basis of an individual case; therefore, the case study cannot contribute to scientific development. Misunderstanding 3 :  The case study is most useful for generating hypotheses; that is, in the first stage of a total research process, whereas other methods are more suitable for hypotheses testing and theory building. Misunderstanding 4 :  The case study contains a bias toward verification, that is, a tendency to confirm the researcher’s preconceived notions. Misunderstanding 5 :  It is often difficult to summarize and develop general propositions and theories on the basis of specific case studies [p. 221].

While writing your paper, think introspectively about how you addressed these misconceptions because to do so can help you strengthen the validity and reliability of your research by clarifying issues of case selection, the testing and challenging of existing assumptions, the interpretation of key findings, and the summation of case outcomes. Think of a case study research paper as a complete, in-depth narrative about the specific properties and key characteristics of your subject of analysis applied to the research problem.

Flyvbjerg, Bent. “Five Misunderstandings About Case-Study Research.” Qualitative Inquiry 12 (April 2006): 219-245.

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Optimization of energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy

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• Open access
• Published: 14 August 2024
• Volume 17 , article number  68 , ( 2024 )

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• A. C. H. J. Thebuwena   ORCID: orcid.org/0000-0001-8559-5354 1 ,
• S. M. Samindi M. K. Samarakoon   ORCID: orcid.org/0000-0002-6847-972X 1 &
• R. M. Chandima Ratnayake   ORCID: orcid.org/0000-0003-2222-8199 1  

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Elevator systems serve as the primary mode of transportation in tall buildings which consumes approximately 5–15% of a building's total energy demand. This research explores the potential for energy savings in elevator systems while maintaining passenger comfort through the implementation of green approaches. The research concentrates on a contemporary high-rise office building situated in the central business district of a developing economy. It employs a case study methodology involving traffic simulation to determine optimal elevator specifications for industry-standard service levels. By conducting the simulation, the researchers identified the optimal number of elevators, elevator capacity, speed, and the most suitable elevator management system. Following that, a range of green measures were implemented, including the incorporation of a regenerative system, to effectively reduce the electrical energy consumption of the elevator system. Subsequently, a passenger traffic simulation model was integrated with an energy calculation model to jointly simulate and calculate the elevator system's overall energy consumption and regeneration. The elevator energy requirements were optimized, while maintaining user-friendliness and requirements related to guidelines given in the standards. The results showed that 36% of the energy consumption was reduced by incorporating an energy regenerative option into the elevator system in addition to selecting efficient mechanical components and implementing an efficient elevator traffic management system. This research contributes to the limited body of literature on energy optimization in elevators and emphasizes the importance of balancing energy efficiency with service quality. These findings provide guidance for establishing benchmarks in reducing energy consumption, in relation to elevator systems.

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Introduction

The continuous pattern of rural-to-urban migration suggests that the global population's urban residency is anticipated to exceed 50% at an increasingly rapid rate (Nieuwenhuijsen, 2020 ). Consequently, urbanization has led to a surge in the construction of multi-story commercial and residential buildings (Mostafavi et al., 2021 ). The transportation needs of individuals within these vertical habitats cannot be adequately met by the mere provision of stairs (Barney & Al-Sharif, 2015 ). Escalators and elevators are necessary to fulfill this requirement. While escalators offer a viable solution for mass transportation, they require more space and are typically limited to serving one or two floors (Barney & Al-Sharif, 2015 ). Conversely, elevators facilitate vertical transportation across multiple floors, making them indispensable components of low and high-rise buildings that encompass numerous levels. As a result, over 7 billion elevator journeys take place in high-rise buildings per day (Wood et al., 2014 ). Therefore, exploring the potential for optimizing energy consumption in elevator systems while ensuring passenger comfort can have a substantial impact on alleviating the stress caused by the global energy crisis.

Generally, elevators can be classified as hydraulic, traction, machine-room-less, and vacuum (Sachs et al., 2015 ). The use of elevators can consume 2% to 10% of the total energy demand for a building, with energy consumption increasing to 40% during the peak hours of utilization (Al-Kodmany, 2015 ). Based on previous findings, it can be seen that elevators consume energy not only while running but also during standby mode (De Almeida et al., 2012 ; Tukia et al., 2018 ). In addition, the lighting and ventilation systems of an elevator system consume a considerable amount of energy (Sachs et al., 2015 ). On the other hand, several studies confirmed that the process of urbanization leads to substantial increases in both the actual and the optimal energy consumption, but a decrease in the efficiency of energy use. For example, Sheng et al. ( 2017 ) confirmed the above using data from 78 countries from 1995 through 2012. A similar study conducted in India confirmed that the increase in urban population during 1991–2011 was 73%, whereas the energy demand more than doubled from 1990 to 2009 (Franco et al., 2017 ). Hence, it is important to understand how an elevator consumes energy while running or in standby mode.

There are different factors influencing the energy consumption in elevators in commercial and residential buildings (Ang et al., 2022 ). Population density in the building, elevator traffic, motor type, characteristics of elevator car and shaft and auxiliary and control system are the factors with the greatest influence on energy consumption (Zubair & Zhang, 2020 ). Elevators in commercial buildings experience higher loads, speed and number of trips, compared with those of residential buildings (Ang et al., 2022 ). Hence, elevators in commercial office buildings consume considerably higher energy than those of residential buildings.

Currently, there is a significant move towards energy-efficient buildings as a solution to rising electricity prices (Chel & Kaushik, 2018 ). In particular, tropical developing economies such as Sri Lanka need energy-efficient buildings to face the current energy crisis (De Silva & Sandanayake, 2012 ). In addition, there is a trend towards not only energy-efficient elevators but also clean energy for elevators that have been referred to as “green elevators” (Al-Kodmany, 2015 ). The green vertical-transportation initiatives began early 1990s and they have been significantly evolved over the time (Bernhard, 2018 ). In 2017, Thyssenkrupp Elevator became the first company to retrofit an existing elevator to achieve net-zero energy in Boston (Bernhard, 2018 ). In fact, commercial buildings use more electrical energy than residential buildings in tropical climes, whereas residential structures consume more electrical energy in the United States and Europe (US Energy Information Administration, 2022 ). This is mainly due to high energy consumption in mechanical ventilation and air conditioning (MVAC) systems in tropical countries (Hassan et al., 2014 ). Therefore, to reduce the energy consumption of the square area (kWh/m 2 ) of commercial buildings in tropical climates, efficient MVAC systems, as well as efficient elevator systems, are crucial (Thebuwena & Rathnayake, 2022 ). Hence, with the global shift towards green building, the demand for green elevators has also increased with time. For instance, in Singapore, the Building and Construction Authority (BCA) aims to have 80% of the country's buildings qualify for Green Mark Certification by 2030 (BCA & SGBC, 2022 ).

The elevators (more than 60%) and escalators (around 30%) have significant technical efficiency potential (De Almeida et al., 2012 ). However, several specific barriers are impeding the spread of these energy-efficient technologies (De Almeida et al., 2012 ). They include issues such as lack of awareness and relevant information, as well as issues with split incentives (De Almeida et al., 2012 ). The energy consumption of elevators can be estimated using a simple calculation method, considering motor rating, number of starts per day, typical trip time, and rated speed (Schroeder, 1988 ; Al-Sharif et al., 2004 ). In addition, installing energy meters in elevators and the estimation of energy consumption is more accurate than the simple calculation method (Zubair & Zhang, 2020 ). It is vital to use an energy classification scheme given in standards (e.g., ISO25745 – 2) while collecting data using the energy meter. However, the disadvantages of the use of energy meters are the difficulty of finding the energy consumption in individual elevators and the interruption of regular elevator traffic during data collection (Ahmed et al., 2014 ). For instance, when elevators carry various loads at varying heights and in different directions, their energy consumption can differ. Moreover, even when carrying the same load for different distances the energy consumption may vary not just due to distance but also because of the acceleration and deceleration needed to reach a constant speed. To assess these differences, elevators must operate for all these scenarios, which demands a significant amount of time and disrupts their normal operation. Moreover, modelling and simulations are widely used to estimate the energy consumption in high-rise buildings (Ang et al., 2022 ). This method can predict energy consumption accurately when a large set of elevator traffic data is available. Hence, the modelling and simulation technique was adopted in this case study in predicting the energy consumption of an elevator system.

Historically, the majority of existing literature has emphasized the service quality of elevator systems over energy consumption, as noted by Adak et al. ( 2013 ). Nonetheless, numerous recent studies have been conducted on the topic of elevator energy, reflecting the significance of energy in commercial properties amidst the rapid urban population growth, as highlighted by Ang et al. ( 2022 ). Despite this, Ang et al. ( 2022 ) highlighted a lack of research on elevator system energy consumption, particularly in tropical climate countries, in contrast to other high-energy consumption systems such as MVAC. Furthermore, there are limited studies reported on the optimization of energy consumption by elevators while maintaining the industry-accepted level of service in developing economies. Therefore, there is a necessity to explore the efficacy of existing technological approaches in reducing energy consumption during operation and standby modes, while simultaneously ensuring the maintenance of industry-accepted service levels.

The primary objective of this research is to investigate how much energy can be conserved in a contemporary office building's elevator system through the adoption of environmentally friendly practices, all while ensuring passenger comfort. Alongside this goal, the research delves into the impact of elevator management systems, and the choice of suitable equipment and materials on enhancing elevator performance. To accomplish the stated objective, researchers undertook an action research case study within a contemporary high-rise office building situated in the central business district of an Asian economy. Initially, the researchers employed traffic simulation to determine the optimal number of elevators, their capacity, and speeds necessary to maintain industry-standard service levels for the given population. Afterward, the researchers proceeded to enhance the performance of the elevator system by introducing a suitable elevator management system using traffic simulation. The subsequent phase of the case study involved evaluating the energy consumption of the elevator system by conducting an energy simulation in conjunction with traffic simulation for the specified population. Upon successfully accomplishing the aforementioned tasks, the researchers implemented green measures aimed at reducing electrical energy consumption, primarily through the introduction of a regenerative system. Lastly, the energy simulation was repeated to evaluate the energy performance of the elevator system and determine the annual energy savings resulting from the integration of green elements into the system.

Research significance

The research findings will provide valuable insights to multiple stakeholders in the commercial property market. For example, the building designers will have a comprehensive understanding of designing optimal elevator systems, enabling building owners to minimize energy costs associated with elevator operations. This, in turn, allows building occupants to enjoy the benefits of an efficient elevator system. Additionally, policymakers will benefit from the study's results in establishing energy consumption benchmarks for elevators in commercial buildings. Ultimately, society as a whole will benefit from reduced energy consumption, aligning with the objectives of United Nations Sustainable Development Goal 11 which focuses on creating sustainable cities and communities. This is accomplished by improving resource efficiency and facilitating the provision of green spaces for individuals, which is crucial for promoting both physical and mental well-being.

Literature review

The environmental impact of elevator systems is a critical aspect within the context of sustainable development. The literature provided in Table  1 offers valuable insights into various facets of elevator systems, allowing us to delve into the specific contributions of different research categories to the understanding of environmental considerations.

Numerous studies delve into the intricacies of elevator technology and design. Al-Kodmany ( 2023a ), for instance, investigates contemporary technological innovations in the elevator industry. This exploration not only enhances user satisfaction but also reduces environmental impact, fostering a transition towards a more sustainable future. The earlier works of Al-Kodmany ( 2015 ) and De Jong ( 2008 ) emphasized advancements in elevator technology and design, with the potential to optimize energy consumption. Furthermore, these researchers highlight the integration of Internet of Things (IoT) technologies, asserting their role in creating smart and energy-efficient elevator systems through real-time monitoring and adaptive control. Conversely, Shi & Xu ( 2018 ), Zhou et al. ( 2018 ), Niu et al. ( 2021 ), and Wang et al. ( 2016 ) investigated in elevator maintenance and reliability and those works provide insights into practices that can enhance the longevity of elevator systems, reducing the need for frequent replacements, and subsequently, lowering the environmental impact associated with manufacturing and disposal.

Simultaneously, numerous scholars have examined elevator traffic analysis and passenger comfort. For instance, Zhang et al. ( 2018 ) proposed the utilization of smartphones to gauge rider comfort, while Al-Sharif et al. ( 2017 ) evaluated the up-peak performance of elevator systems under real-time allocation conditions of landing calls. These studies prove instrumental in assessing and enhancing the efficiency of elevator systems, thereby reducing energy consumption.

Notably, works by Tukia et al. ( 2016 ); Sachs et al. ( 2015 ); Kubade & Umathe ( 2017 ); Lin & Lian ( 2017 ); Pham et al. ( 2015 ); Kutija et al. ( 2021 ) within the category of energy efficiency and environmental impact directly address the ecological implications of elevator systems. These studies explore methods to enhance energy efficiency, reduce carbon footprints, and minimize the overall environmental impact of elevator operations.

Given the industry's significant focus on energy consumption, extensive research has been dedicated to assessing the energy usage of elevators during their operation. The existing body of literature offers various techniques for quantifying the energy consumption of elevator systems, as outlined by Al-Sharif ( 2004 ), who summarizes four distinct approaches as Calculations for the first principle, Direct measurements of elevator energy with different electrical and mechanical components, Calculation from formulas and tables which can be based on measurements, first principles, or combinations and Simulations based on first principles or traffic models.

Conversely, Ang et al. ( 2022 ) classified the evaluation of elevator system energy consumption into five distinct categories as Calculation from first principles,Calculation using formulas and reference values derived from previous studies,Measurement,A hybrid method of measurement and calculation using formulas and reference values derived from previous studies and Modelling and simulation. Modeling and simulation offer valuable benefits for developing nations, allowing them to assess results and implement necessary enhancements before the installation of the elevator system.

The comprehensive exploration of diverse methodologies for assessing energy consumption in elevator systems, as highlighted in these research articles, holds significant relevance to the theme of sustainable development. Table 2 below showcases illustrations from the literature corresponding to each approach. The findings of these studies contribute to the broader discourse on creating urban environments that are both ecologically sustainable and socially responsible.

As per the literature, estimation energy consumption by first principle does not distinguish between elevator speed, load and building usage (Ang et al., 2022 ). On the other hand, direct measurements by installing energy meters are more accurate as they measure transient energy consumption parameters; electricity and voltage (Tukia et al., 2016 ). Nevertheless, this can be put into effect once the development is finished and the commercial operations are initiated. Whereas simulations method is very much useful as it can produce and compare service quality and energy consumptions for different scenarios (Adak et al., 2013 ). The focal point of these researches, the optimization of energy usage in vertical mobility systems, directly aligns with the sustainability goals outlined for cities and communities. The findings offer valuable insights for urban planners, building designers, and policymakers who are actively engaged in enhancing the environmental performance of commercial buildings, particularly high-rise office structures.

Industrial challenge and methodology

In the following sections, the researchers explain the challenges encountered by the industry and the methodology employed in the investigation.

Industrial challenge

The researchers have identified two categories of challenges that are currently being faced by the industry. One of the challenges pertains to vertical traffic bottleneck, while the other relates to the high energy consumption of elevator systems. The subsequent sections provide a brief description of these challenges.

Vertical traffic bottleneck

Large-scale buildings are particularly susceptible to the vertical traffic bottleneck problem during peak hours, due to the restricted physical capacity of the elevators combined with the temporary traffic increase. The issue contributes to travelers’ long waits, unhappiness, and irritation (Hangli et al., 2020 ). The similar issues have been identified by Siti et al. ( 2018 ) in a study conducted in Singapore. Among 43 numbers of operational defects, the scholars highlighted jerky movements, long waiting times, and over-speedy car rides are common among the elevator industry. On the other hand, some researchers pointed out that the efficiency and quality of service provided by an elevator system are greatly influenced by the number of people utilizing it to move between floors and travel to and from the building's lobby (Peters et al., 2011 ). Therefore, as solution to the momentary increment of traffic load, some researchers endeavored to enhance the efficiency of the system through proactive computation of traffic flow (Ge et al., 2019 ).

Furthermore, the passenger arrival pattern also influences the performance of the elevator system. Passengers arrive in the lobby individually and in batches. A case study conducted by Kuusinen et al. ( 2012 ) showed that 20% of passengers arrived in batches in the morning up peak and 50% during the lunch peak period. An hourly means of the group size of passenger arrivals differs significantly from daily means (Sorsa et al., 2021 ). Therefore, identifying the traffic pattern and deciding the optimum capacity of the elevator system is found to be one of the biggest challenges that industry faces today. The problem was aggravated during the COVID-19 pandemic, as maintaining social distance reduces the elevator’s capacity by at least two thirds (Ananthanarayanan et al., 2022 ).

High energy consumption

Another challenge facing the elevator system is the high energy costs caused by the system's inefficiency. Instabilities in speed (changing acceleration and deceleration) and workload, deviations from optimum engine power and optimum elevator speeds, and forced braking all contribute to increased energy losses in the lift system (Abdullina et al., 2019 ). In addition to the foregoing, passenger traffic is also a determining factor in energy usage (Siikonen et al., 2010 ). However, it is important to note that the amount of elevator energy consumption compared to other services depends on the building’s height, type, and use, as well as the local climate. For example, the elevator energy consumption in North American office buildings recorded approximately 5% of total building electricity use but the aggregate is large (Sachs, 2005 ). Saidur ( 2009 ), however, reported that lifts and pumps use 18% of building energy in office buildings in Malaysia. However, the elevators’ energy consumption may account for 2% to 40% of the building’s total energy consumption (Ang et al., 2022 ). Consequently, this results in increased energy costs for the building owner, which eventually gets passed on to the occupants of the building. In the case of commercial buildings available for rent, this situation can make the building less appealing to potential tenants and contribute to a higher vacancy rate. Therefore, this study implements the possible solutions to the above two challenges and calculates the reduction in energy consumption of the proposed system, while preserving customer satisfaction and comfort by maintaining an acceptable level of services.

Research methodology

Existing literature hypothesis that elevator systems of buildings have potential in enhancing efficiency and reduction in energy consumption while maintaining the industry accepted service level. For example, De Almeida et al. ( 2012 ) confirmed a significant technical efficiency potential of more than 60%. The literature further suggests several ways to reduce energy consumption in the elevator system specially of commercial buildings. As the objective of this investigation is to quantify the potential energy reduction of elevator system by implementing green methodology, this research follows a deductive approach to investigate the feasible decrease in energy consumption of passenger lift systems while preserving passenger comfort and industry-acceptable service requirements in commercial buildings. Due to its objective and replicable nature, the deductive approach was similarly employed by Cristino et al. ( 2022 ) in investigating evolution and trends in building energy efficiency. In this study, simulation methodology was employed to evaluate elevator performance and energy consumption, a technique also utilized by various researchers in the literature to assess elevator systems. For instance, Vlachou et al. ( 2023 ) and Kim et al. ( 2019b , October) utilized simulation to analyze energy consumption, while So & Al-Sharif ( 2023 ) employed it to evaluate performance metrics.

Further to the above, this investigation considered the interconnection of wide range of variables such as building design, traffic patterns, and technological systems for elevator efficiency and energy consumption. Therefore, in order to carry out in depth exploration of complex and multifaceted phenomena, a case study research approach has been selected with a special focus on action research. A similar approach was adopted by Yin ( 2018 ) and Adak et al. ( 2013 ). The case study-based research tasks are as follows.

One of the proposed high-rise office buildings was chosen for the case. The building's intended use is for office space rentals, and it is being planned to acquire green certification. The specific information about the case study building can be found in Section " Details of the case study building ", which provides detailed insights about the building. Data required for the investigation of the elevator performance was gathered from the developer and from the building design team. Type of data and the source of collection is discussed in Section " Data collection "—data collection.

Firstly, different efforts were made to attain an industry-accepted degree of passenger comfort, while minimizing development (supply and installation) costs. The methodology adopted was briefly discussed in Section " Methodology used in the study to optimize elevator energy consumption ".

Following that, initiatives were taken to reduce the cost of operational energy.

Analyzed, computed, and simulated outcomes were reached in collaboration with vendors. The vendors were requested to simulate the given traffic flow considering different factors such as elevator capacity, speeds, elevator management systems, etc. The design team reviewed and compared the results of the aforementioned simulation, and subsequently requested additional simulations for different combinations of factors as deemed appropriate.

However, it's imperative to acknowledge the inherent limitations in the methodology employed. This research is confined to a single case study, wherein data collection and analysis are restricted to a proposed commercial office building. It's noteworthy that broader generalizations could be drawn if data were available from similar projects.

Methodology used in the study to optimize elevator energy consumption

The objective of this study is to enhance the energy efficiency of a commercial building's elevator system while ensuring its performance meets industry standards. Simultaneously, the system will optimize the use of space within the building, leading to a cost-effective development process. Figure  1 illustrates the elevators’ energy consumption assessment and operational energy optimization methodology used in the case study.

Operational energy optimization methodology

The initial three stages of the Fig.  1 illustrate to the optimization of the elevator system, focusing on optimizing the number of elevators, their capacities, and speeds. Subsequent steps aim to minimize the electricity consumption of the elevator system during its operation.

Attaining optimal elevator traffic performance

Increasing the number of elevators, enhancing their carrying capacity, and raising elevator speeds would undoubtedly result in superior level of service in vertical transportation. Nonetheless, adopting such an approach could impose undue financial burdens on the developer during the development and throughout operational phases. Hence, the initial goal of the case study action research is to ascertain the ideal number of elevators, their optimal carrying capacities, and operating speeds to achieve a harmonious balance between efficiency and cost-effectiveness.

To accomplish this, the number of elevators and their capacity to serve the passengers were initially estimated, complying with international performance standards (CIBSE, 2020 ). This was ascertained by considering the population of the building, the “arrival rate”, which is the percentage of the population arriving in the lobby to take the lift, in a time frame of 5 min (5AR; Arrival Rate), and the number of floors served above the main terminal (Al-Sharif & Seeley, 2010 and Al-Sharif, 2017 ). Academics and industry experts have used several parameters and their desired level of performance in designing vertical mobility systems. For example, Barney ( 2003 ) and Peters Research ( 2008 ) target 30 s for the average waiting time, 60 s for the average transit time, and 90 s for the average time to destination, based on the industry de facto standard of 30/60/90. The same parameters were used by Al-Sharif ( 2017 ) in a study into the design of elevator systems. According to industry experts and researchers, the values of these parameters play a crucial role in determining the efficiency of a vertical transportation system in buildings. The optimal values for these parameters may vary depending on the specific use of the building. During this study, the aim has been to achieve an “average waiting time” (AWT) of less than 25 s or Interval (INT) of less than 30 s and passenger average journey time (AJT) or average time to destination (ATTD) of less than 80 s (Barney & Al-Sharif, 2015 ; ISO 8100–32, 2020).

To initiate the aforementioned process, number of elevators with standard dimensions was assigned in the floor plan, taking into consideration the space allocated by the architect. Based on the cabin dimensions, the capacity of each elevator cabin was decided in consultation with the vendors, and the performance of the elevator system was checked. Then, the above process was repeated until the results were acceptable. After selecting the number of elevators, their speeds and carrying capacity were optimized, to manage capital investment. To achieve this objective, the elevator system was simulated by the vendors, and the results were compared with performance needs. Each vendor performed a simulation of their own elevator system. For example, one of the elevator manufacturers, Schindler, used software called £Drive calculation 11.0. The elevator traffic simulation and analysis were repeated for various options, such as different zoning and change in elevator speeds and, finally, with the introduction of local elevators for selected zones. The simulation was carried out as per the guide lines provided by the Chartered Institute of Building Service Engineers’ guide D 2015 (CIBSE, 2020 ).

Optimizing operational energy

Operational energy has been optimized by changing the conventional control algorithms system to group control and to the destination management system (DMS). In a traditional call system, users press up and down buttons, and elevators respond to the call. This system works well in buildings with low "vertical ridership" and no "rush hour" traffic. In heavy passenger traffic, many buttons are pressed, resulting in numerous elevators stops, increasing travel and wait times. Each stop in a high-speed elevator consumes up to 10–13 s (De Jong, 2014 ). These stops will also account for energy consumption during deceleration and acceleration. According to researchers, installing an “intelligent hall call destination management system” significantly improves elevator efficiency and reduces the need for elevators by 20% to 25% (De Jong, 2008 ). Therefore, the performance of the proposed elevator system was tested for the destination dispatch system.

Further reduction in operational energy was implemented by specifying the materials of elevator cars and mechanical accessories (for example, rope), by introducing an energy-saving lighting system and by introducing a standby mode to the lift management system. When it came to material selection, the design team proactively opted for lightweight cabin materials, ropes, and finishing materials in order to minimize the overall elevator load. The electronic devices within the elevator system operate in multiple modes: idle, standby, and shutdown. These modes consume varying amounts of electrical energy, with the highest consumption occurring during idle and reducing to zero during shutdown. Consequently, the design team has implemented measures to either shut down or place the electronic devices in standby mode to minimize energy consumption. Pacheco et al. ( 2015 ) have also embraced a similar approach, which verifies that significant energy savings can be attained by placing only the controller in standby mode, while shutting down other devices like displays and frequency variable drivers.

The key energy reduction approach employed by the design team was the integration of a regenerative system into the elevator system. The idea of using an electrical motor as a generator has been understood and implemented for many years. However, advancements in semiconductor power technology have finally allowed the application of this technology to elevator motors in a way that allows the motor to recover energy when driven as a generator. Figure  2 depicts the principle of energy recuperation for four simplified traffic modes. Elevator drives operate in either motor or generator mode, depending on the travel direction and car weight. In this study, a recuperation system has been introduced to achieve a further reduction in the operational energy need. There are five ways to gauge how much energy a lift system uses: calculation methods include working from scratch; using formulas and tables gleaned from experience; relying only on measurements; combining measurements and calculations; and using modelling and simulation. The elevator system, however, stands out as a special product because it can accommodate a wide range of variations, including those related to geometrical dimensions, the number of operating floors, weight, height, door configurations, speeds, and many more. Model-based engineering (MBE) is therefore helpful in evaluating the effectiveness of an elevator system. Furthermore, modelling and simulation techniques have the benefit of allowing for the calculation of energy consumption over time, as well as the accounting of various parts and configurations (Al-Sharif, 2004 ). Hence, this study computes energy consumption by simulation. Again, different vendors have various energy simulation software. For instance, Schindler employs the "Tool Schindler Drive V11.0".

Simple traffic modes and direction of energy flow (Schindler AC Generation module, n.d. )

Case study: optimization of operational energy in an office building

In this section, the researcher explores the specifics of the chosen building and the data gathered for the investigation.

Details of the case study building

The proposed office space development project is located in central business district in Colombo, Sri Lanka. A sectional elevation of the building is shown in Fig.  3 . The objective of the development is to provide rentable office space to business entities. The building, which is under construction, consists of 32 floors and 4 basements (total height: 157.1 m) with around 43,500 m 2 of floor space. The study has been carried out at the conceptual design stage in the designing of the building. The number of floors and their intended usage are shown in Table  3 .

Front elevation of the building, with zones

Data collection

Data was collected from the above office buildings located in CBD in Colombo, the commercial capital of Sri Lanka. Since the building is under construction and tenants have not occupied it, most of the data to be estimated was as per the local and international regulations, as discussed below. The list of data collected is shown in Table  4 .

Two types of typical office floors are available in the proposed building. Both floors have a plinth area of 1,076 m 2 . After excluding walls, common facilities, and maintenance rooms, the net internal areas or the carpet areas for these typical floors are 819 m 2 and 791 m 2 , respectively. The floor population of the building can be determined according to either CIBSE regulations or ISO 8100–32 2020 standards (Siikonen, 2021 ). According to CIBSE guidelines, the occupancy will range from 11 to 16 m 2 per person, whereas, according to ISO standards, it will be between 10 to 12 m 2 per person for a standard office. The population of the building was estimated by the net rentable area of each floor and is shown in Table  5 .

The working hours of the occupants were determined based on the expected tenants’ working hours in the local culture, which are generally 8.00 am to 5.00 pm during weekdays and 8.00 am to 1.00 pm on Saturdays. The flow of people into and out of the building was determined based on the above working hours. The number of people arriving at each level was determined by also considering the number of carpark slots available on each parking floor. The arrival pattern of passengers in the elevator lobbies may follow a uniform, Poisson, or compound Poisson distribution, depending on the social behaviour of the local area. As recommended by Siikonen ( 2021 ), the arrival pattern of passengers in the lobby was modelled as a Poisson process for the simulation.

Analysis & results

The aim of this case study action research is to explore the energy optimization of an elevator system while upholding the industry-accepted level of service for passengers. Consequently, in the subsequent sections, the results of the analysis are presented, first focusing on achieving the industry-accepted service levels and then on achieving energy optimization.

Achieving industry-accepted service level

The initial architectural design proposed including six passenger elevators and two service elevators for the building. The six passenger elevators were located in the elevator core in the middle of the building and the two service elevators were located in cores on either side of the building, as shown in Fig.  4 . Each passenger elevator had a capacity of 1275 kg (17 passengers), and each service elevator had a capacity of 1325 kg. The internal size of the elevator is 1750 mm (width) × 1540 mm (depth) × 2600 mm (height). The speeds of each elevator were chosen as 3 m/s. As per the fire safety requirement, a maximum allowable time has been given to reach the ground floor from the furthest floor. Therefore, the minimum speed is 2.5 m/s. The design team, who has experience in similar buildings, started with 3 m/s for the analysis.

Initial design with six passenger elevators in the middle core and two service elevators in the corners

However, traffic simulation results showed that the number of elevators in the system was insufficient, and the performance of the system was far below the standards, as given in Table  6 . Therefore, the design team taken steps to group the elevators to cater low zone and high zone in order to improve the performance. Figures  5 and 6 show the one-group and two-group options discussed in Table  6 . The performance was evaluated using INT and HC5, where the target INT was 30 s and HC was 10% to 12%. The industry defines HC or HC5 as 5-min handling capacity, which refers to the number of passengers that an elevator system can convey in a 5-min period, often during peak traffic hours. The design team determined that the results remain unfavorable.

One-group option

Two-group option

It is also important to note that there are primarily three types of pedestrian flows observed in office buildings: morning up-peak, lunch peak, and evening down-peak. Traditionally, elevator design has focused on addressing the morning up-peak traffic, considering it to be crucial (So & Al-Sharif, 2023 ). However, recent research has shown that lunchtime traffic can also present significant challenges in elevator design (Kuusinen et al., 2017 ; Sorsa et al., 2021 ). Nevertheless, in the current study, the lunchtime traffic was found to be non-critical, as the preliminary traffic analysis yielded favorable results during this period. Hence, this case study did not include lunchtime traffic or traffic from other periods when assessing elevator performance compared to industry standards.

The elevators have been selected with a capacity of 1275 kg (i.e., maximum 17 passengers per lift).

Therefore, to improve the performance of the elevators, number of elevators in the middle core has been increased from 6 to 8 as shown in Fig.  7 a. As results were not satisfactory, the building was divided into zones, as given in Fig.  7 b. Subsequently, simulations were conducted using various zoning configurations, and the most favorable zoning configuration was selected for further analysis. In addition to adjusting the zoning, the speeds of the elevators were also revisited. Hence, the layout’s plan has been modified to increase the number of elevators to eight number of passenger elevators in the middle core of the building and one passenger elevator and two service lifts in the corner lift cores, as shown in Figs.  3 and 7 b.

a Improved design with eight passenger lifts in the middle core and one passenger lift and two service lifts in the corners. b Zones in the building

After increasing the number of passenger elevators, the simulation was carried out with elevator speeds of 3 m/s and 4 m/s. However, performance did not reach a satisfactory level. AWT = 25 Sec or Interval 30 Sec, ATTD = 100 Sec and 5 min HC = 10% to 12% have been used as the target performance. Furthermore, Elevators in the middle lift-core were assigned to serve the floors designated for offices from stories 8 to 29. Considering other restrictions, a separate elevator was planned to serve level 29 and above (stories 30 to 32). i.e., local elevators (L9 and SL1) were introduced on some of the floors, as given in Table  7 , while keeping zones. In the construction business, elevators that serve only a portion of a building are referred to as local elevators. Then, the results were improved but did not approach a satisfactory level. The lift matrix with zoning and serving floors is shown in Table  7 . The results of the performance analysis for the above options are shown in Table  8 .

Improving the level of service through effective elevator management system

Table 8 above presents the performance of both a two-car group and an eight-car group. As the main elevator system for the proposed building is eight-car group, the design team explored options for further improvement and optimization of this group. To this end, elevator management systems such as destination management/compass systems were introduced and compared against the conventional Quardlex Operation system. The analysis considered four options with different elevator speed combinations, as outlined in Table  9 . The aforementioned possibilities were put forward to help the developer choose the best option that would provide the necessary performance level at minimal cost. For example, the level of performance in option 1 will be the lowest, and that in option 2 will be the highest; however, the cost of the lift’s mechanical and management system varies among options 1 to 4. The design team investigated the cost among the options shown in Table  9 . By considering the costs provided by the vendors, the team determined the additional expenses involved in implementing DMS and enhancing elevator speeds. The results shown in Table  10 .

In Quardlex Operation, users press up/down buttons and elevators respond accordingly, effective in low-ridership buildings with no peak rush hour traffic. However, when there is a significant influx of traffic, excessive button presses cause multiple elevators to stop frequently, leading to increased travel and waiting times. As a solution to the above, the industry has developed different elevator management systems, such as group control systems and destination management systems (DMS). The benefits of implementing DMS are illustrated graphically in Fig.  8 . The destination management system has been called different names (Example, PORT – passenger occupants requirement terminal, DOAS – Destination oriented allocation system) by different vendors, based on the specialty of the software system unique to individuals. Each stop in a high-speed elevator consumes up to 10–13 s (De Jong, 2014 ). These stops will also account for energy consumption during deceleration and acceleration. According to researchers installing an intelligent hall call destination management system significantly improves elevator efficiency and reduces the need for elevators by 20% to 25% (De Jong, 2008 ). Therefore, the performance of the proposed elevator system was tested for the destination dispatch system. For example, in the results of vendor 1, from option 1 to option 2, HC5 has been increased from 7.9% to 12%, and ATTD improved from 129 to 117 s. The system was checked with three vendors and found all give better results with the introduction of the destination management system in option 2, as shown in Table  11 .

Graphical illustration of Destination Management System (Elevators and Escalators—Σ AI – 2200C, n.d. )

Optimizing energy efficiency through equipment and software selection

Based on previous research findings, the selection of suitable elevator equipment and software has been identified as a key factor in achieving enhanced energy optimization. For Example, Al-Kodmany ( 2023a , b , c ) reaffirmed that advancements in AC and gearless motors, machine-room-less (MRL) technologies, regenerative drives, elevator ropes, and LED lighting, along with software solutions like destination dispatching systems, people flow solutions, standby mode, and predictive maintenance applications, contribute to improving energy efficiency in elevator systems. Consistent with the preceding information, Wut ( 2020 ) verified that employing intelligence control systems for elevators contributes to the attainment of energy-efficient elevator systems. Therefore, the present case study action research incorporates the insights derived from those studies. The forthcoming section outlines the strategies employed for the selection of appropriate elevator management software and equipment. However, it is important to note that this study does not specifically examine the impact of these tactics on energy reduction.

Selection of motor

High-rise buildings typically use geared or gearless traction elevators that can operate at high or variable speeds. The gearless elevator is directly connected to the motor, eliminating gear-train energy losses. Therefore, gearless motors save approximately 25% more energy than geared motors in high-speed elevators and escalators (Al-Kodmany, 2015 ). The above finding is also corroborated by Afonin et al. ( 2010 ). Furthermore, research in the literature has validated that incorporating permanent-magnet synchronous motors (PMSM) into elevator systems could result in up to 30% energy savings, contingent upon the specific type of motor utilized (Vlachou et al., 2023 ; Zhang et al., 2022 ). Additionally, it has been affirmed by researchers that variable-voltage variable-frequency inverters (VVVF) not only conserve energy and prolong motor lifespan but also facilitate efficient transient performance, achieving optimal acceleration and deceleration (Sakti & Riyadi, 2019 , September). Therefore, in this study, gearless AC motors: PMR390-C (AC VVVF PMSM) were chosen for the elevator operation. AC current, or alternating current, refers to the flow of electric charge that periodically reverses direction in a circuit. Further to the above, regen drivers in tandem offer advantages in high-speed operations and handling high loads in elevator systems, making them a suitable choice for buildings with demanding vertical transportation requirements. Nonetheless, the effectiveness of tandem drives can vary depending on factors such as load conditions and usage patterns (Atalay et al., 2012 ). Nonetheless, it is important to highlight that tandem drives were disregarded due to the aforementioned reasons.

Selection of rope

The elevator rope is a necessary component of traction elevators because it connects the elevator engine to the cab, sheaves, and counterweight. Traditionally, ropes are made of steel, which is strong enough to hold cabins. However, as these ropes become longer in tall buildings, they become extremely heavy, and the rope weight increases exponentially with height. In very tall buildings, the cable itself accounts for nearly 70% of the elevator's weight, and when the rope becomes too long, it cannot support its own weight (De Jong, 2014 ). In summary, once the rope weight is reduced, the entire elevator system becomes more efficient (Wood et al., 2014 ). As a result, to reduce energy consumption, the design team and vendor proposed Schindler Aramid rope, which is four times lighter and has four times the life of steel (Schindler Management Ltd. Corporate Communications, 2001 ).

Selection of type of lights and controlling mechanism

LEDs (light-emitting diodes) save a significant amount of energy because they use less power than incandescent, halogen, and fluorescent lamps. LED also produces less heat, requiring less energy to cool the cab. However, only efficient lighting sources and luminaries are insufficient to meet the demands of visual comfort and energy efficiency. Lighting control strategies and lighting control systems aid in providing optimal light levels where and when they are required (Banerjee et al., 2017 ). The lighting solution selected for this building operates based on the people’s movement and saves energy during standby mode.

Selection of elevator cabin material

The reduction in elevator components’ weight reduces the consumption of energy. Damped aluminum laminate (DAL) elevators or carbon fiber reinforced plastics (CFRP) elevators are lighter by 40% and 50%, respectively, than conventional steel wall elevator cars (Bae et al., 2020 ). However, all four vendors with whom the design team negotiated were unable to provide lift wall material, either DAL or CFRP. All vendors provide colored steel walls for lift cars. Hence, the best possible elevator car with the least weight was chosen.

Selection of finishing material of elevator cabin

Elevators should have a good appearance, in addition to safety and comfort, especially in shopping malls, hotels, and office buildings. As a result, elevator users occasionally hire decoration companies to perform secondary car decoration. Despite the fact that these ornamental materials appear modest, they actually weigh a lot. For instance, if a car has three glass mirrors and a marble floor installed, the actual weight may be between 200 and 500 kg (Feng et al., 2021 ). Hence, the finishing materials were selected to keep the weight of the decorative material at a reasonable level.

Selection of elevator operating system

Digital data systems (DDS) and security are an essential part of the elevator system. Calling the elevator by using the traditional call button option creates several issues. One such issue is pressing the wrong buttons, and the other is pressing the same button several times. Then, the elevator operating system will miscalculate the number of passengers expecting to use the elevator. Radio frequency identification (RFID) cards were introduced to reduce mistakes in calling cars (Al-Kodmany, 2015 ). The introduction of the RFID card system will provide users with two additional benefits. One such benefit is the prevention of bacteria spreading, providing hygienic buildings (Iqbal & Campbell, 2021 ). The other is the additional security option available with this RFID card, i.e., passengers can be prevented from entering unauthorized areas or floors. RFID cards are issued to authorized individuals for access to specific floors or areas within a building, with each card programmed for particular access permissions. RFID readers are placed at entry points and elevator interiors. If a cardholder's RFID card permits access to a certain floor, the reader allows entry; otherwise, access is denied. Unauthorized floors are those for which an individual lacks permission, as defined by the access control system. For instance, if an employee's access is limited to floors 10, 12 (cafeteria), and 32 (rooftop restaurant), any other floor would be unauthorized for them in the case study building.

Elevators use lots of energy for their functions other than lifting. In some of the buildings, more elevators are in standby mode than motion. The literature confirmed that the overall energy efficiency of the elevator system can be further improved by reducing the energy consumption in standby mode (Erica et al., 2021 ). Hence, for some elevators, the standby energy is significant and, in some cases, higher than the lifting costs. Therefore, in addition to the above strategies, the design team directed their attention towards the operating modes of different systems of the elevators during periods of inactivity, aiming to minimize energy consumption requirements. For example, the elevator cab requires lighting and ventilation, as well as motorized doors for the cab and landing. Even in standby mode, older motor-generator systems required several kW to keep the AC motor and DC (DC current, or direct current, refers to the flow of electric charge that consistently flows in one direction in a circuit) generator spinning, in order to respond to service calls. Instead of several kW, modern systems require only a few hundred watts (Sachs et al., 2015 ). The proposed elevator system was recommended to use negligible energy during its standby mode in reducing energy consumption. It is planned to achieve this through several strategies, such as those discussed below. The first strategy is to turn off the ventilation fan and lights when the cab has been stationary for a while. Similarly, it is suggested to use permanent magnet motors. Since office building usage is concentrated in the morning, lunchtime and evening, it is suggested that only a few elevators be kept in standby mode, by configuring controllers (for example, maximum likely wait for service).

Recuperation of energy consumption during operation

According to industry experts and existing literature, the implementation of a regenerative system in the elevator system can lead to substantial reductions in energy consumption. The regenerative drives in elevator systems capture and utilize energy that would otherwise be lost during various operations as described below (Palomba et al., 2020 ; Kutija et al., 2021 ; Al-Kodmany, 2023a , b , c ).

When the elevator slows down, brakes are applied, generating energy. In conventional systems, this energy is dissipated as heat, but the regenerative drive harnesses it.

Similarly, when an empty or lightly loaded elevator goes up, brakes are applied to maintain speed, resulting in energy loss. The regenerative drive captures this energy, including the spinning energy from the motor and counterweight interaction.

When a heavy elevator descends, brakes are applied to control speed, creating energy that is typically lost. The regenerative drive captures this energy as well as the spinning energy from the motor and gravity interaction.

Additionally, by eliminating the need to cool equipment exposed to excess heat generated by conventional motors, further energy savings are achieved.

Hence, energy recovery during the operation of elevators has been studied by the team, as given in Fig.  2 . The supplied energy and recuperated energy were estimated for loading weights of 100%, 75%, 50%, 25% and 0% at a travel height of 138.3 m. The amount of energy supplied and recuperated for each elevator was estimated by using the selected vendor’s simulation software. For example, Schindler uses Schindler Drive v11.0. The results of energy supplied and recuperated for different payload levels are given in Tables 12 and 13 for service elevators and in Table  14 for passenger elevators.

The results of energy consumption and regeneration, based on the anticipated traffic of the building per day and per year, are shown below in Tables 15 , 16 and 17 . Gross energy includes all energy necessary to operate the elevators. Regenerated energy is the amount of clean energy fed back to the building grid. Net energy is gross energy less regenerated energy, which is relevant to the energy bill.

Any developer wants the elevator system to perform up to industry standards, in order to market the building and attract better tenants. HC5, AWT or INT and ATTD are selected key indicators used to measure passenger comfortability. Long waiting in the lobby, longer journey times, and unnecessary stoppages will create uneasiness among the tenants. The developer can achieve the above parameters at desirable levels by increasing the number of elevators, increasing elevator carrying capacities, increasing elevator operating speeds, or combining all three options. However, all those options will increase the cost of elevator supply and installation. In addition to the foregoing, some of the options necessitate more building space, which reduces the rentable area, particularly in office buildings. Furthermore, some options will lead to an increase in the cost of the civil structural elements of the building. For example, enhancement of elevator speed by 1 m/s will leads to increase in total cost by 7%. Therefore, developers prefer to achieve passenger comfort without spending additional funds or losing valuable rentable areas. In this case study action research, the design team acknowledged that increasing the speeds of the elevators from 4 m/s to 5 m/s would facilitate the attainment of the desired transportation performance. However, carrying out this modification would entail an approximate 7% rise in costs. However, the results confirmed that the performance of the elevator system can be improved just by changing the elevator management system to the destination management system. Moreover, the supplementary investment required for implementing DMS is merely around 3% to 4% of the total cost.

Aside from the foregoing, building owners are concerned about the facility's operational expenditure. The energy cost of the elevator system is one of the major cost variables that contribute to the building's total operational cost. As a result, building owners must once again focus on lowering energy costs while operating elevator systems without compromising industry standards or passenger comfortability. The demand for less energy will provide an opportunity for the building owner to minimize the monthly maintenance fee that tenants will be charged. The case study implemented several strategies for lowering the elevator system's running expenses as presented below.

Choosing an optimum number of elevators with optimum carrying capacities and speeds for each elevator car (cabin).

Introducing energy-efficient mechanical components, lightweight finishes, and parts.

Introducing an appropriate elevator management system, based on the number of floors to serve and the population of the building.

Introducing a regenerative power system.

Enhancing passenger comfort can be achieved simply by increasing the number of elevators and operating them at higher speeds. However, exceeding the optimal number of elevators may lead to higher energy consumption as more elevators are used. High-speed elevators, on the other hand, require more energy to accelerate and decelerate the elevator car. Therefore, it is essential to strike a balance and achieve the desired level of comfort parameters by carefully considering the optimal number of elevators and their operating speeds. Most notably, the findings revealed that, by implementing DMS, ATTD could be significantly lowered (in this case, from 130 to 117 s), resulting in a reduction in the amount of energy required to operate the elevators. Eventually, after incorporating an energy regenerative system, coupled with energy recovery capabilities, the research confirmed 36%, 39%, and 40% energy savings in the main elevator group (eight car group), two car group, and service elevator, respectively. Figure  9 illustrates the graphical representation of the proportion of gross energy required, energy generated, and consequently, the net energy required for operating elevators.

Graphical illustration of the net energy requirement for elevators

The findings obtained align with the conclusions put forth by Tan ( 2015 ) in their study conducted on the AIA building in Hong Kong. Tan ( 2015 ) reported a noteworthy enhancement in efficiency of over 40 percent in the power regenerative unit, resulting in an estimated annual power reduction of 6570 kilowatt-hours (kWh) per elevator. Further, Erica et al. ( 2021 ) also confirmed that the regenerative system will enhance efficiency when the travel demand increases. Furthermore, a case study by Kutija et al. ( 2021 ) confirmed that introducing a regenerative drive to a roped elevator system yielded yearly energy savings of 24%, 26.7%, and 15.9%, employing three different methodologies to evaluate energy efficiency: computation in accordance with VDI 4707 and ISO 25745 standards, along with actual measurements. Furthermore, in this study, researchers found that the ratio of regenerative energy (energy feedback from regeneration to electricity/power consumption) varied across different loading weights of passenger elevators. For elevators 1 to 9, the ratios were determined to be 54%, 43%, 20%, 33%, and 50% for loading weights of 100%, 75%, 50%, 25%, and 0%, respectively. These findings align closely with those reported by Lin & Lian ( 2017 ), who observed similar ratios of 48%, 35%, 9%, 24%, and 46% for the same loading weights. Moreover, an additional simulation study compared the efficiency of regenerative braking between elevators equipped with supercapacitors and those utilizing grid-tie inverters, relative to elevators lacking a regen drive. The results disclosed varying percentages of energy savings across diverse elevator usage scenarios: 28.6% to 34.4% and 38.5% to 39%, respectively, for elevators employing supercapacitors and grid-tie inverters (Kim et al.,  2019b ). Furthermore, research conducted in Indonesia by Almanda & Ramadhan ( 2020 ) confirmed energy savings of 26% and 28% at 100% and 0% loading, respectively. Similarly, a separate study carried out in Vietnam by Anh & Duc ( 2021 ) validated a 33% reduction in energy consumption through the implementation of regenerative drive technology.

It is also important to note that the additional expense incurred from incorporating DMS accounts for only 3% to 4% of the initial cost, which equates to approximately 59,000 to 69,000 USD. Similarly, the cost increase associated with the regenerative system represents approximately 10% of the original price, ranging from 174,000 to 202,000 USDs. However, the positive outcome of these enhancements is a reduction in energy consumption by 300 MWh per annum. Considering the current market rate of electricity, this translates to an approximate savings value of 4,375 USD per month. As a result, the cost of the supplementary investment will be recouped in approximately 28 months, as demonstrated in the calculations provided for vendors 1 & 3 in Table  18 .

It's important to highlight the potential societal impact of integrating environmentally friendly approaches in elevator design, as significant energy savings are achievable. These savings can be estimated by considering various factors. According to Ahmad & Zhang ( 2020 ), the total final energy consumption as of 2024 amounts to 10,529 Mtoe per annum (Researchers have defined Mtoe as a measurement unit representing the energy released by burning one metric ton of oil). Additionally, González-Torres et al. ( 2022 ); Kim et al. ( 2019a ) suggest that operational energy consumption in global buildings constitutes approximately 33% of this total. Furthermore, Al-Kodmany ( 2015 ) suggests that elevators typically account for around 10% of a building's operational energy consumption. Therefore, based on these references, the approximate final energy consumption attributed to elevators can be estimated at 347 Mtoe. Consequently, the potential energy saving achievable through more efficient elevator design is approximately 125 Mtoe. This highlights the substantial impact that green approaches in elevator design can have on reducing overall energy consumption and advancing sustainability efforts on a broader scale.

Conclusions

The elevator industry has established certain parameters for passenger comfortability levels in commercial buildings. These parameters are designed to ensure that passengers can travel safely and comfortably between floors, without experiencing any discomfort or inconvenience. Average waiting time (AWT) or interval (INT), average time to destination (ATTD), and five minutes’ handling capacity (HC in 5) are the selected main parameters used in the industry. The above parameters will be tested generally during up peak traffic and during lunch time. In addition to the above, there are also industry-specified comfortability levels for lighting, ventilation, vibration, and noise. Building operators and owners also focus on optimizing the energy consumption of elevators during their operations, as they account for a significant portion of the total energy consumption of the building. Several strategies are available to optimize the energy consumption of an elevator system, as listed below.

Consider the building's overall design and layout, and the building's occupancy patterns, when deciding on the number and location of elevators.

Use of energy-efficient lighting, ventilation, and air conditioning systems. This can include the use of LED lighting, automatic temperature controls, and air filtration systems, to reduce energy consumption.

Use of efficient motor drives and lightweight mechanical components and accessories.

Use of power management systems and occupancy sensors.

Use of destination management systems (DMS).

Use of regenerative drives.

Through the implementation of the strategies mentioned in the case study building, the researcher successfully met the industry requirements, preserving the initial investment. Specifically, the Average Waiting Time (AWT) was reduced to 34.8 s (20%), the Average Time to Destination (ATTD) was lowered to 117.3 s (10%), and the Five Minutes’ Handling Capacity (HC5) was improved to 12% for the main passenger lifts. Subsequently, the researcher introduced a regenerative system that was able to recover 36% of the total energy needed to operate the vertical transportation system in the main passenger lifts, specifically for the anticipated population and usage pattern. Additionally, the investment in the DMS and regenerative system can be recouped within 28 months based on the projected building population. However, the payback period may differ due to the electricity consumption tariffs prevailing in the market. Therefore, as suggested by Al-Kodmany ( 2015 ), the proposed lift system will consume less energy and also generate clean energy which has no negative impact on the environment and human health.

The practical application of optimizing energy use in vertical transportation systems can lead to cost savings in electricity and maintenance. For instance, regenerative drives can reduce the wear and tear on components like brakes and motors, resulting in maintenance cost reduction. Additionally, the implementation of such energy-efficient measures can aid in achieving green certification and help to decrease the carbon footprint associated with elevator use. Furthermore, when buildings consume less energy, it directly contributes to a decline in greenhouse gas emissions. By lowering energy usage, buildings decrease their reliance on fossil fuels and other high-carbon energy sources for operation. Consequently, this leads to a decrease in the release of greenhouse gases, including carbon dioxide (CO 2 ), into the atmosphere. Given that greenhouse gases are primary contributors to climate change and global warming, the efforts to minimize energy consumption in buildings hold great significance in lessening their environmental footprint and actively addressing climate change. The advancements in vertical transportation encompass various realms, including mechanical components, management control systems, electrical and electronics, software, as well as calculation and analysis techniques like digital twins. These advancements are occurring incrementally and independently. Existing literature tends to address issues with vertical transportation separately. However, this study takes a holistic approach by proposing solutions to both challenges; vertical traffic bottleneck and high energy consumption. It focuses on reducing energy consumption in the proposed system while ensuring customer satisfaction and comfort through the maintenance of acceptable service levels by integrating diverse developments comprehensively. Hence, the findings of this investigation offer significant insights for the industry, ultimately contributing to societal improvement.

Nonetheless, there were several limitations to this case study. While traffic simulation was conducted before and after the implementation of DMS, there was no simulation to measure the energy recovery before and after its introduction. Therefore, the energy savings achieved by combining DMS and regenerative drives may have been much more significant. Similarly, the impact of other strategies, such as using occupancy sensors, implementing a power management system for standby and duty modes, and utilizing lightweight components on energy savings, was not determined. Additionally, it is important to note that the achievement of a 36% energy recovery rate was feasible for the specific office building considered, taking into account factors such as its height (number of floors) and population. However, the actual energy savings in the vertical transportation system can vary depending on factors, including the purpose of building use, building heights (number of floors), and populations. As a result, the findings of this research are limited to the specific designed building height and the predicted populations.

Future recommendations

To obtain a more comprehensive understanding of the potential feasibility of energy reduction in vertical transportation systems within office buildings, it is necessary to conduct future research that encompasses various building heights and populations.

Furthermore, it is important to mention that all of the results presented above were achieved through simulations. Therefore, researchers suggest validating the above results by measuring actual energy consumption during the operations phase, either by installing and monitoring energy meters or by other means. Furthermore, the case study research conducted did not include an assessment of the impact on energy consumption resulting from the implementation of each individual strategy. For instance, simulations to evaluate energy consumption before and after the introduction of lightweight cabins or lightweight finishes for the cabbing were not performed. Therefore, it is recommended to conduct these simulations in order to determine the specific contribution of each design change implemented by the team, with the aim of identifying potential reductions in energy consumption. In addition to the above, it is advisable to carry out similar studies for varying building heights and populations, to ascertain the possible percentage of energy savings.

Yet, aside from the cost–benefit of energy savings, there is no other incentive to construct energy-efficient elevators in Sri Lanka. As a result, policymakers should consider instituting such incentives to promote efficient elevator systems and, as a result, reduce energy consumption in commercial buildings, which will help sustain a healthier industry.

Moreover, the vertical transportation system of a commercial building is one of the systems which requires a significant amount of electrical energy in its operational phase. Similarly, there are other segments which require natural resources and electricity energy in operating commercial buildings, such as mechanical ventilation and air conditioning systems (MVAC), lighting, water, etc. Therefore, it is crucial to explore the potential for energy and resource conservation by incorporating green or efficient technological concepts to reduce the overall energy consumption required for the operation of commercial buildings. Hence, this study recommends also extending the research to encompass other areas such as MVAC, water consumption and electricity consumption, to ascertain the savings on energy and resources by adopting appropriate green technology.

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Thebuwena, A.C.H.J., Samarakoon, S.M.S.M.K. & Ratnayake, R.M.C. Optimization of energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy. Energy Efficiency 17 , 68 (2024). https://doi.org/10.1007/s12053-024-10246-5

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Sdg 11.3 assessment of african industrial cities by integrating remote sensing and spatial cooperative simulation: with mfez in zambia as a case study.

1. Introduction

2. research area and data sources, 2.1. research area, 2.2. data sources and preprocessing, 3.1. urban expansion analysis using ntl, 3.1.1. threshold determination with pifs method, 3.1.2. urban growth indicators, 3.2. simulation of land-use and population changes, 3.2.1. driving factors of land use and population, 3.2.2. ca-based feature simulation, 3.2.3. initial and step-wise cooperative simulation with cafs, 3.3. accuracy validation, 3.4. spatiotemporal assessment of sdg 11.3.1 indicator, 4.1. spatial and temporal changes in urban expansion, 4.1.1. extracting urban built-up area from ntl images using pifs method, 4.1.2. calculation of the spatial and temporal change index for urban expansion, 4.1.3. characterization of urban expansion standard deviation ellipse (sde), 4.2. synergistic land-use population modeling, 4.2.1. temporal and spatial variation in land use and population, 4.2.2. spatial cooperative simulation of lulc-population, 4.3. spatiotemporal variation in land consumption and population growth (sdg 11.3.1), 5. discussion, 5.1. effectiveness of extracting built-up areas based on dmsp-ols and npp-viirs data, 5.2. drivers of significant urban expansion and population explosion, 5.3. analysis of land-use simulation results under sdg frame, 5.4. limitations and future perspectives, 6. conclusions, author contributions, data availability statement, acknowledgments, conflicts of interest.

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Huang, Y.; Ming, D. SDG 11.3 Assessment of African Industrial Cities by Integrating Remote Sensing and Spatial Cooperative Simulation: With MFEZ in Zambia as a Case Study. Remote Sens. 2024 , 16 , 2995. https://doi.org/10.3390/rs16162995

Huang Y, Ming D. SDG 11.3 Assessment of African Industrial Cities by Integrating Remote Sensing and Spatial Cooperative Simulation: With MFEZ in Zambia as a Case Study. Remote Sensing . 2024; 16(16):2995. https://doi.org/10.3390/rs16162995

Huang, Yuchen, and Dongping Ming. 2024. "SDG 11.3 Assessment of African Industrial Cities by Integrating Remote Sensing and Spatial Cooperative Simulation: With MFEZ in Zambia as a Case Study" Remote Sensing 16, no. 16: 2995. https://doi.org/10.3390/rs16162995

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