phd defense presentation introduction

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How to Start a Thesis Defense Presentation

After months and years of hard work, the moment to wrap things all up is finally here—your thesis defense presentation.

Whether you’re pursuing a master’s degree or doctorate, it’s the final step to that much-deserved achievement. 

A thesis defense requires a lot of prior research and preparation. And as important as its content is, so is how you present it because a stunning design with clear data and text hierarchy plays an immense role in comprehension.

In this article, we’ll explore how you make your thesis defense .

The organization is the key to success. Establishing some previous steps before any project or work is essential for the result to be very positive. And the defense of a thesis could not be less. 

Below, we will develop all the necessary steps to make a thesis defense presentation and we will give you some tips on how to carry them out.

How to Make an Amazing Presentation

Defining the concept of your thesis presentation, structuring your thesis defense presentation, how do you welcome the audience, tell them why you did this thesis, go into the content by explaining your thesis part by part, how to end the defense of the thesis.

After a long time of research and study, the content of your thesis is ready. Now, you have to find the best way to reflect all that effort behind your work. The information comes across more clearly if you use a visual format, as it attracts the attention of the audience. To present your thesis information in a clear, concise, and ultimately amazing way, you can use one of our unique thesis defense templates , available at Slidesgo.

As an example, in this article, we are going to use the Ecology Thesis template . With it, we will show you what to include in your presentation and how to make an attractive design.

After choosing the Google Slides and PowerPoint template that best suits the needs and subject matter of your thesis, it is time to define an overarching concept.

This is the main theme on which your designs are based. It must be relevant to your thesis as its purpose is to guide your selection of colors, typography, images, style, etc. 

These must be portrayed in a way that supports the main message of your slides and should be aligned with your concept both visually and sociologically.

Once you have defined the concept, you will have to move on to the next step: structuring the content of your thesis. A good structure will show that there is a good organization behind the work, but most importantly: it will highlight your content.

In this article, we are going to show you a structure that could be a good example of how to structure a thesis, but you can adapt it to what your specific content requires.

Before you begin your thesis defense, you should welcome your audience. A good presentation will make you connect with your audience, which will result in more general interest in your work.

Use an appropriate language register (avoid informal language), but be approachable and natural.

"Welcome to the thesis defense on [the title of your thesis]". Next, introduce yourself with your name and give a short description of your background and occupation.

Don't forget to say “thank you for attending!”

To continue establishing that connection with your audience, explain the reasons that led you to do this thesis. Tell the professional reasons, and you can even say some personal ones, which will denote closeness, and your audience will appreciate it.

Now it's time to go into the content of the thesis ! After these preliminary steps, which are just as important as the thesis itself, it is time to explain part by part the structure (which you had previously established). We are going to propose a structure for your project, but the final decision is always yours!

First impressions are very important. Because your title page is the very first thing viewers see, it must be striking and impactful. It also sets the stage for the rest of your slides.

In one glance, the following should be established:

• Thesis defense topic
• Design style

For instance, the ecology thesis’s title page uses illustrations of a natural landscape to represent the topic of nature and a striking shade of blue to set the tone.

The sans serif font used depicts clean-cut typography and style and the thesis topic is written in large and bold typography, which draws attention to it immediately.

Right after your title page, include an introduction slide to provide more details about your topic. 

This means explaining what you hope to answer with your research, its importance to your field, and why you chose it.

Continue to incorporate design elements relevant to your concept. This example has done just that by using a different natural landscape and including animals. For coherence, stick to the same typography and style throughout your presentation.

The aim of the literature review slide is to illustrate your knowledge of your thesis topic and any relevant theories.

Walls of text kill a design. For clarity, we recommend presenting this with bullet points. Each one should be short and sweet and only touch on the basics; you can elaborate on them in your speech. 

Don’t forget to be consistent with your design. In our example, we’ve maintained the tone of blue chosen and added illustrations of leaves in the far corners of the slide. 

Also, address similar research that has been done. This is to showcase your topic’s originality and, if relevant, how it’s different and/or an improvement from previously done research. 

This is one of the most important parts of a thesis defense presentation.

It allows your viewers to assess the rationality and validity of your approach and consequently, the accuracy of your results.

A great methodology slide explains the what , how, and why :

• What method did you use for your research
• Why did you choose it
• How did you conduct it

Because this part of your thesis will be rather technical, the most effective way to aid understanding is by using graphics like charts and tables. 

Keep text to a minimum to avoid drawing attention away from the graphics. If there is a text that must absolutely be included, consider using bullet points and keep them short.

Don’t forget to maintain color, style, and typography coherence.

The results slides are easily the most quantitative part of a thesis defense. 

Here, your aim is to simply introduce your findings. Select the most impactful data and highlight them here.

Just as with methodology, use graphics like charts, tables, and graphs to portray the data in a clear way. And, once again, try not to write too much text. Let the visual content do the talking .

After you’ve introduced your data, the next step would be to help your audience make sense of it. That means understanding what it means in the context of your thesis research topic and your discipline. 

Simply put, you should answer the question: What do the numbers mean?

The best way to approach this would be to do it as if you were creating an infographic . 

Illustrations like icons are a quick and simple way to represent your message. It also reduces the amount of text on your slide, which makes the information much more digestible. 

For a balanced thesis presentation, you should also address any outliers and anomalies.

To quote bestselling author Robin Sharma, “Starting strong is good. Finishing strong is epic.”

That’s exactly what to aim for in your conclusion.

Provide an overview of your thesis topic and remind your audience what you set out to answer with your research. In our example, we’ve used three icons accompanied by a short title and text. 

Following that, reiterate the important points of your research results you want your audience to take away from your thesis defense presentation. 

You can do so by expanding the next slide to have more icons and points, for example.

Don’t forget to address any shortcomings and limitations in your approach and extra points for suggesting possible improvements for future research.

We are going to give you a little tip to make your thesis defense a success. You can combine your defense with good public speaking techniques. Take a look at our article "How to become a great speaker" .

We hope this article has been of great help, have you already seen our templates to make the presentation of your thesis ? Choose the one that best suits your needs, we are sure that one of them will go perfectly with your thesis presentation! 

Good luck from Slidesgo.

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Research Tips and Infromation

PhD Defence Process: A Comprehensive Guide

Embarking on the journey toward a PhD is an intellectual odyssey marked by tireless research, countless hours of contemplation, and a fervent commitment to contributing to the body of knowledge in one’s field. As the culmination of this formidable journey, the PhD defence stands as the final frontier, the proverbial bridge between student and scholar.

In this comprehensive guide, we unravel the intricacies of the PhD defence—a momentous occasion that is both a celebration of scholarly achievement and a rigorous evaluation of academic prowess. Join us as we explore the nuances of the defence process, addressing questions about its duration, contemplating the possibility of failure, and delving into the subtle distinctions of language that surround it.

Beyond the formalities, we aim to shed light on the significance of this rite of passage, dispelling misconceptions about its nature. Moreover, we’ll consider the impact of one’s attire on this critical day and share personal experiences and practical tips from those who have successfully navigated the defence journey.

Whether you are on the precipice of your own defence or are simply curious about the process, this guide seeks to demystify the PhD defence, providing a roadmap for success and a nuanced understanding of the pivotal event that marks the transition from student to scholar.

Introduction

A. definition and purpose:, b. overview of the oral examination:, a. general duration of a typical defense, b. factors influencing the duration:, c. preparation and flexibility:, a. preparation and thorough understanding of the research:, b. handling questions effectively:, c. confidence and composure during the presentation:, d. posture of continuous improvement:, a. exploring the possibility of failure:, b. common reasons for failure:, c. steps to mitigate the risk of failure:, d. post-failure resilience:, a. addressing the language variation:, b. conforming to regional preferences:, c. consistency in usage:, d. flexibility and adaptability:, e. navigating language in a globalized academic landscape:, a. debunking myths around the formality of the defense:, b. significance in validating research contributions:, c. post-defense impact:, a. appropriate attire for different settings:, b. professionalism and the impact of appearance:, c. practical tips for dressing success:, b. practical tips for a successful defense:, c. post-defense reflections:, career options after phd.

Embarking on the doctoral journey is a formidable undertaking, where aspiring scholars immerse themselves in the pursuit of knowledge, contributing new insights to their respective fields. At the pinnacle of this academic odyssey lies the PhD defence—a culmination that transcends the boundaries of a mere formality, symbolizing the transformation from a student of a discipline to a recognized contributor to the academic tapestry.

The PhD defence, also known as the viva voce or oral examination, is a pivotal moment in the life of a doctoral candidate.

PhD defence is not merely a ritualistic ceremony; rather, it serves as a platform for scholars to present, defend, and elucidate the findings and implications of their research. The defence is the crucible where ideas are tested, hypotheses scrutinized, and the depth of scholarly understanding is laid bare.

The importance of the PhD defence reverberates throughout the academic landscape. It is not just a capstone event; it is the juncture where academic rigour meets real-world application. The defence is the litmus test of a researcher’s ability to articulate, defend, and contextualize their work—an evaluation that extends beyond the pages of a dissertation.

Beyond its evaluative nature, the defence serves as a rite of passage, validating the years of dedication, perseverance, and intellectual rigour invested in the research endeavour. Success in the defence is a testament to the candidate’s mastery of their subject matter and the originality and impact of their contributions to the academic community.

Furthermore, a successful defence paves the way for future contributions, positioning the scholar as a recognized authority in their field. The defence is not just an endpoint; it is a launchpad, propelling researchers into the next phase of their academic journey as they continue to shape and redefine the boundaries of knowledge.

In essence, the PhD defence is more than a ceremonial checkpoint—it is a transformative experience that validates the intellectual journey, underscores the significance of scholarly contributions, and sets the stage for a continued legacy of academic excellence. As we navigate the intricacies of this process, we invite you to explore the multifaceted dimensions that make the PhD defence an indispensable chapter in the narrative of academic achievement.

What is a PhD Defence?

At its core, a PhD defence is a rigorous and comprehensive examination that marks the culmination of a doctoral candidate’s research journey. It is an essential component of the doctoral process in which the candidate is required to defend their dissertation before a committee of experts in the field. The defence serves multiple purposes, acting as both a showcase of the candidate’s work and an evaluative measure of their understanding, critical thinking, and contributions to the academic domain.

The primary goals of a PhD defence include:

• Presentation of Research: The candidate presents the key findings, methodology, and significance of their research.
• Demonstration of Mastery: The defence assesses the candidate’s depth of understanding, mastery of the subject matter, and ability to engage in scholarly discourse.
• Critical Examination: Committee members rigorously question the candidate, challenging assumptions, testing methodologies, and probing the boundaries of the research.
• Validation of Originality: The defence validates the originality and contribution of the candidate’s work to the existing body of knowledge.

The PhD defence often takes the form of an oral examination, commonly referred to as the viva voce. This oral component adds a dynamic and interactive dimension to the evaluation process. Key elements of the oral examination include:

• Presentation: The candidate typically begins with a formal presentation, summarizing the dissertation’s main components, methodology, and findings. This presentation is an opportunity to showcase the significance and novelty of the research.
• Questioning and Discussion: Following the presentation, the candidate engages in a thorough questioning session with the examination committee. Committee members explore various aspects of the research, challenging the candidates to articulate their rationale, defend their conclusions, and respond to critiques.
• Defence of Methodology: The candidate is often required to defend the chosen research methodology, demonstrating its appropriateness, rigour, and contribution to the field.
• Evaluation of Contributions: Committee members assess the originality and impact of the candidate’s contributions to the academic discipline, seeking to understand how the research advances existing knowledge.

The oral examination is not a mere formality; it is a dynamic exchange that tests the candidate’s intellectual acumen, research skills, and capacity to contribute meaningfully to the scholarly community.

In essence, the PhD defence is a comprehensive and interactive evaluation that encapsulates the essence of a candidate’s research journey, demanding a synthesis of knowledge, clarity of expression, and the ability to navigate the complexities of academic inquiry. As we delve into the specifics of the defence process, we will unravel the layers of preparation and skill required to navigate this transformative academic milestone.

How Long is a PhD Defence?

The duration of a PhD defence can vary widely, but it typically ranges from two to three hours. This time frame encompasses the candidate’s presentation of their research, questioning and discussions with the examination committee, and any additional deliberations or decisions by the committee. However, it’s essential to note that this is a general guideline, and actual defence durations may vary based on numerous factors.

• Sciences and Engineering: Defenses in these fields might lean towards the shorter end of the spectrum, often around two hours. The focus is often on the methodology, results, and technical aspects.
• Humanities and Social Sciences: Given the theoretical and interpretive nature of research in these fields, defences might extend closer to three hours or more. Discussions may delve into philosophical underpinnings and nuanced interpretations.
• Simple vs. Complex Studies: The complexity of the research itself plays a role. Elaborate experiments, extensive datasets, or intricate theoretical frameworks may necessitate a more extended defence.
• Number of Committee Members: A larger committee or one with diverse expertise may lead to more extensive discussions and varied perspectives, potentially elongating the defence.
• Committee Engagement: The level of engagement and probing by committee members can influence the overall duration. In-depth discussions or debates may extend the defence time.
• Cultural Norms: In some countries, the oral defence might be more ceremonial, with less emphasis on intense questioning. In others, a rigorous and extended defence might be the norm.
• Evaluation Practices: Different academic systems have varying evaluation criteria, which can impact the duration of the defence.
• Institutional Guidelines: Some institutions may have specific guidelines on defence durations, influencing the overall time allotted for the process.

Candidates should be well-prepared for a defence of any duration. Adequate preparation not only involves a concise presentation of the research but also anticipates potential questions and engages in thoughtful discussions. Additionally, candidates should be flexible and responsive to the dynamics of the defense, adapting to the pace set by the committee.

Success Factors in a PhD Defence

• Successful defence begins with a deep and comprehensive understanding of the research. Candidates should be well-versed in every aspect of their study, from the theoretical framework to the methodology and findings.
• Thorough preparation involves anticipating potential questions from the examination committee. Candidates should consider the strengths and limitations of their research and be ready to address queries related to methodology, data analysis, and theoretical underpinnings.
• Conducting mock defences with peers or mentors can be invaluable. It helps refine the presentation, exposes potential areas of weakness, and provides an opportunity to practice responding to challenging questions.
• Actively listen to questions without interruption. Understanding the nuances of each question is crucial for providing precise and relevant responses.
• Responses should be clear, concise, and directly address the question. Avoid unnecessary jargon, and strive to convey complex concepts in a manner that is accessible to the entire committee.
• It’s acceptable not to have all the answers. If faced with a question that stumps you, acknowledge it honestly. Expressing a willingness to explore the topic further demonstrates intellectual humility.
• Use questions as opportunities to reinforce key messages from the research. Skillfully link responses back to the core contributions of the study, emphasizing its significance.
• Rehearse the presentation multiple times to build familiarity with the material. This enhances confidence, reduces nervousness, and ensures a smooth and engaging delivery.
• Maintain confident and open body language. Stand tall, make eye contact, and use gestures judiciously. A composed demeanour contributes to a positive impression.
• Acknowledge and manage nervousness. It’s natural to feel some anxiety, but channelling that energy into enthusiasm for presenting your research can turn nervousness into a positive force.
• Engage with the committee through a dynamic and interactive presentation. Invite questions during the presentation to create a more conversational atmosphere.
• Utilize visual aids effectively. Slides or other visual elements should complement the spoken presentation, reinforcing key points without overwhelming the audience.
• View the defence not only as an evaluation but also as an opportunity for continuous improvement. Feedback received during the defence can inform future research endeavours and scholarly pursuits.

In essence, success in a PhD defence hinges on meticulous preparation, adept handling of questions, and projecting confidence and composure during the presentation. A well-prepared and resilient candidate is better positioned to navigate the challenges of the defence, transforming it from a moment of evaluation into an affirmation of scholarly achievement.

Failure in PhD Defence

• While the prospect of failing a PhD defence is relatively rare, it’s essential for candidates to acknowledge that the possibility exists. Understanding this reality can motivate diligent preparation and a proactive approach to mitigate potential risks.
• Failure, if it occurs, should be seen as a learning opportunity rather than a definitive endpoint. It may highlight areas for improvement and offer insights into refining the research and presentation.
• Lack of thorough preparation, including a weak grasp of the research content, inadequate rehearsal, and failure to anticipate potential questions, can contribute to failure.
• Inability to effectively defend the chosen research methodology, including justifying its appropriateness and demonstrating its rigour, can be a critical factor.
• Failing to clearly articulate the original contributions of the research and its significance to the field may lead to a negative assessment.
• Responding defensively to questions, exhibiting a lack of openness to critique, or being unwilling to acknowledge limitations can impact the overall impression.
• Inability to address committee concerns or incorporate constructive feedback received during the defense may contribute to a negative outcome.
• Comprehensive preparation is the cornerstone of success. Candidates should dedicate ample time to understanding every facet of their research, conducting mock defences, and seeking feedback.
• Identify potential weaknesses in the research and address them proactively. Being aware of limitations and articulating plans for addressing them in future work demonstrates foresight.
• Engage with mentors, peers, or advisors before the defence. Solicit constructive feedback on both the content and delivery of the presentation to refine and strengthen the defence.
• Develop strategies to manage stress and nervousness. Techniques such as mindfulness, deep breathing, or visualization can be effective in maintaining composure during the defence.
• Conduct a pre-defense review of all materials, ensuring that the presentation aligns with the dissertation and that visual aids are clear and supportive.
• Approach the defence with an open and reflective attitude. Embrace critique as an opportunity for improvement rather than as a personal affront.
• Clarify expectations with the examination committee beforehand. Understanding the committee’s focus areas and preferences can guide preparation efforts.
• In the event of failure, candidates should approach the situation with resilience. Seek feedback from the committee, understand the reasons for the outcome, and use the experience as a springboard for improvement.

In summary, while the prospect of failing a PhD defence is uncommon, acknowledging its possibility and taking proactive steps to mitigate risks are crucial elements of a well-rounded defence strategy. By addressing common failure factors through thorough preparation, openness to critique, and a resilient attitude, candidates can increase their chances of a successful defence outcome.

PhD Defense or Defence?

• The choice between “defense” and “defence” is primarily a matter of British English versus American English spelling conventions. “Defense” is the preferred spelling in American English, while “defence” is the British English spelling.
• In the global academic community, both spellings are generally understood and accepted. However, the choice of spelling may be influenced by the academic institution’s language conventions or the preferences of individual scholars.
• Academic institutions may have specific guidelines regarding language conventions, and candidates are often expected to adhere to the institution’s preferred spelling.
• Candidates may also consider the preferences of their advisors or committee members. If there is a consistent spelling convention used within the academic department, it is advisable to align with those preferences.
• Consideration should be given to the spelling conventions of scholarly journals in the candidate’s field. If intending to publish research stemming from the dissertation, aligning with the conventions of target journals is prudent.
• If the defense presentation or dissertation will be shared with an international audience, using a more universally recognized spelling (such as “defense”) may be preferred to ensure clarity and accessibility.
• Regardless of the chosen spelling, it’s crucial to maintain consistency throughout the document. Mixing spellings can distract from the content and may be perceived as an oversight.
• In oral presentations and written correspondence related to the defence, including emails, it’s advisable to maintain consistency with the chosen spelling to present a professional and polished image.
• Recognizing that language conventions can vary, candidates should approach the choice of spelling with flexibility. Being adaptable to the preferences of the academic context and demonstrating an awareness of regional variations reflects a nuanced understanding of language usage.
• With the increasing globalization of academia, an awareness of language variations becomes essential. Scholars often collaborate across borders, and an inclusive approach to language conventions contributes to effective communication and collaboration.

In summary, the choice between “PhD defense” and “PhD defence” boils down to regional language conventions and institutional preferences. Maintaining consistency, being mindful of the target audience, and adapting to the expectations of the academic community contribute to a polished and professional presentation, whether in written documents or oral defences.

Is PhD Defense a Formality?

• While the PhD defence is a structured and ritualistic event, it is far from being a mere formality. It is a critical and substantive part of the doctoral journey, designed to rigorously evaluate the candidate’s research contributions, understanding of the field, and ability to engage in scholarly discourse.
• The defence is not a checkbox to be marked but rather a dynamic process where the candidate’s research is evaluated for its scholarly merit. The committee scrutinizes the originality, significance, and methodology of the research, aiming to ensure it meets the standards of advanced academic work.
• Far from a passive or purely ceremonial event, the defence involves active engagement between the candidate and the examination committee. Questions, discussions, and debates are integral components that enrich the scholarly exchange during the defence.
• The defence serves as a platform for the candidate to demonstrate the originality of their research. Committee members assess the novelty of the contributions, ensuring that the work adds value to the existing body of knowledge.
• Beyond the content, the defence evaluates the methodological rigour of the research. Committee members assess whether the chosen methodology is appropriate, well-executed, and contributes to the validity of the findings.
• Successful completion of the defence affirms the candidate’s ability to contribute meaningfully to the academic discourse in their field. It is an endorsement of the candidate’s position as a knowledgeable and respected scholar.
• The defence process acts as a quality assurance mechanism in academia. It ensures that individuals awarded a doctoral degree have undergone a thorough and rigorous evaluation, upholding the standards of excellence in research and scholarly inquiry.
• Institutions have specific criteria and standards for awarding a PhD. The defence process aligns with these institutional and academic standards, providing a consistent and transparent mechanism for evaluating candidates.
• Successful completion of the defence is a pivotal moment that marks the transition from a doctoral candidate to a recognized scholar. It opens doors to further contributions, collaborations, and opportunities within the academic community.
• Research presented during the defence often forms the basis for future publications. The validation received in the defence enhances the credibility of the research, facilitating its dissemination and impact within the academic community.
• Beyond the academic realm, a successfully defended PhD is a key credential for professional advancement. It enhances one’s standing in the broader professional landscape, opening doors to research positions, teaching opportunities, and leadership roles.

In essence, the PhD defence is a rigorous and meaningful process that goes beyond formalities, playing a crucial role in affirming the academic merit of a candidate’s research and marking the culmination of their journey toward scholarly recognition.

Dressing for Success: PhD Defense Outfit

• For Men: A well-fitted suit in neutral colours (black, navy, grey), a collared dress shirt, a tie, and formal dress shoes.
• For Women: A tailored suit, a blouse or button-down shirt, and closed-toe dress shoes.
• Dress codes can vary based on cultural expectations. It’s advisable to be aware of any cultural nuances within the academic institution and to adapt attire accordingly.
• With the rise of virtual defenses, considerations for attire remain relevant. Even in online settings, dressing professionally contributes to a polished and serious demeanor. Virtual attire can mirror what one would wear in-person, focusing on the upper body visible on camera.
• The attire chosen for a PhD defense contributes to the first impression that a candidate makes on the examination committee. A professional and polished appearance sets a positive tone for the defense.
• Dressing appropriately reflects respect for the gravity of the occasion. It acknowledges the significance of the defense as a formal evaluation of one’s scholarly contributions.
• Wearing professional attire can contribute to a boost in confidence. When individuals feel well-dressed and put-together, it can positively impact their mindset and overall presentation.
• The PhD defense is a serious academic event, and dressing professionally fosters an atmosphere of seriousness and commitment to the scholarly process. It aligns with the respect one accords to academic traditions.
• Institutional norms may influence dress expectations. Some academic institutions may have specific guidelines regarding attire for formal events, and candidates should be aware of and adhere to these norms.
• While adhering to the formality expected in academic settings, individuals can also express their personal style within the bounds of professionalism. It’s about finding a balance between institutional expectations and personal comfort.
• Select and prepare the outfit well in advance to avoid last-minute stress. Ensure that the attire is clean, well-ironed, and in good condition.
• Accessories such as ties, scarves, or jewelry should complement the outfit. However, it’s advisable to keep accessories subtle to maintain a professional appearance.
• While dressing professionally, prioritize comfort. PhD defenses can be mentally demanding, and comfortable attire can contribute to a more confident and composed demeanor.
• Pay attention to grooming, including personal hygiene and haircare. A well-groomed appearance contributes to an overall polished look.
• Start preparation well in advance of the defense date. Know your research inside out, anticipate potential questions, and be ready to discuss the nuances of your methodology, findings, and contributions.
• Conduct mock defenses with peers, mentors, or colleagues. Mock defenses provide an opportunity to receive constructive feedback, practice responses to potential questions, and refine your presentation.
• Strike a balance between confidence and humility. Confidence in presenting your research is essential, but being open to acknowledging limitations and areas for improvement demonstrates intellectual honesty.
• Actively engage with the examination committee during the defense. Listen carefully to questions, respond thoughtfully, and view the defense as a scholarly exchange rather than a mere formality.
• Understand the expertise and backgrounds of the committee members. Tailor your presentation and responses to align with the interests and expectations of your specific audience.
• Practice time management during your presentation. Ensure that you allocate sufficient time to cover key aspects of your research, leaving ample time for questions and discussions.
• It’s normal to feel nervous, but practicing mindfulness and staying calm under pressure is crucial. Take deep breaths, maintain eye contact, and focus on delivering a clear and composed presentation.
• Have a plan for post-defense activities. Whether it’s revisions to the dissertation, publications, or future research endeavors, having a roadmap for what comes next demonstrates foresight and commitment to ongoing scholarly contributions.
• After successfully defending, individuals often emphasize the importance of taking time to reflect on the entire doctoral journey. Acknowledge personal and academic growth, celebrate achievements, and use the experience to inform future scholarly pursuits.

In summary, learning from the experiences of others who have successfully defended offers a wealth of practical wisdom. These insights, combined with thoughtful preparation and a proactive approach, contribute to a successful and fulfilling defense experience.

You have plenty of career options after completing a PhD. For more details, visit my blog posts:

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The journey from a curious researcher to a recognized scholar culminates in the PhD defence—an intellectual odyssey marked by dedication, resilience, and a relentless pursuit of knowledge. As we navigate the intricacies of this pivotal event, it becomes evident that the PhD defence is far more than a ceremonial rite; it is a substantive evaluation that validates the contributions of a researcher to the academic landscape.

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The Ultimate Guide to Preparing Your PhD Dissertation Defense Presentation

January 12, 2023

Chances are, you’ve been waiting years for this moment: preparing your PhD dissertation defense.

You’ve made it this far in your doctorate journey, so you’ll really want to nail the final thing standing between you and your PhD.

We’ll break down everything you need to know, from what the dissertation defense is to how to prepare and more importantly, succeed.

Here’s our ultimate guide for preparing for your PhD dissertation defense.

What Is a PhD Dissertation Defense Presentation?

A PhD dissertation defense is your chance to defend your work in front of the academics analyzing your research. You might also hear this called a “thesis defense.” 

Although the thought of having experts critique you in a cross-examination setting, a dissertation defense is just an opportunity for you to show off your best work .

What Is a PhD Dissertation Committee?

A PhD dissertation committee is a group you assemble to guide you through the dissertation process, from preparation to the revision of your dissertation. 

You choose the members of the committee after all the academic work is finalized. Usually, members will be trusted faculty — people you know well who you might consider a mentor. 

How to Prepare for Your PhD Dissertation Defense Presentation

Preparing for your PhD dissertation defense doesn’t have to be stressful. 

Try using Yoodli , an AI-powered speech coach that analyzes your speaking patterns and identifies areas in which you can improve. By practicing your dissertation defense presentation through Yoodli, you’ll be able to not only improve your speaking, but boost your confidence as well. 

For example, you can take an in-depth look at the filler words you use, including which ones come up the most often and precisely how often they come up.

Here are three more tips for preparing your PhD dissertation defense.

1. Don’t wait around.

One of the best things you can do for yourself when preparing your PhD dissertation defense is to start the work early. You won’t regret starting “too early” like you would regret starting the preparation too late in the game. 

Designing your presentation slides will take time and isn’t something you can slap together in a pinch. Right after your thesis is finalized, start on the slides. Your aim is to impress the committee with a thought-out, clear presentation that presents your work in a good light.

2. Practice, practice, practice.

It doesn’t matter how confident or comfortable you are with regard to your work and the actual PhD dissertation defense — you need to practice like your life depends on it. 

Be sure to practice not only the presentation, but also your body language, like hand gestures . You don’t want to seem too stiff or anxious during your dissertation defense, and practicing all these elements at once gives you an idea of what you need to work on. 

You’ll also want to work on your tone, to make sure you don’t come off as sounding monotonic . You want the committee members to feel interested and engaged. 

Taking one of Yoodli’s free public speaking courses — such as the fundamentals of public speaking — can also build on your confidence and make you feel more comfortable during the dissertation defense. 

Check out Yoodli’s 10-minute course here:

3. Check out other candidates’ presentations.

Sometimes, universities will offer open PhD dissertation defense presentations. If your university is one of them, it’s a great idea to attend a few . If your university doesn’t offer open dissertation presentations, check out other local universities that might offer these.

Watching other candidates’ presentations can help you not only get a firsthand look at how a presentation should (or shouldn’t!) go, but also to affirm that dissertation defense presentations aren’t as awful and scary as you might think they are. You might even get some insight or a few ideas for your own presentation while you’re at it.

The Bottom Line

Preparing for your PhD dissertation defense presentation doesn’t have to be overwhelming. After all, it’s all part of your doctorate journey . With preparation and practice, you can use this opportunity to shine and show off your best work. 

Start practicing with Yoodli.

Getting better at speaking is getting easier. Record or upload a speech and let our AI Speech Coach analyze your speaking and give you feedback.

Swath and Dive: A pattern for PhD defense presentations

In recent times I’m having the fortune of seeing several of my own doctoral students approach the end of the doctoral journey (yes, it does end!). As they submit the dissertation and prepare for their defense, there is one piece of advice I find myself giving again and again, about how to tackle the impossible task of presenting multiple years of research work in less than one hour. In this post, I describe a “presentation design pattern” for thesis defenses, which builds upon classic conceptualization exercises advocated in the blog. I also illustrate it with an example from my own thesis defense presentation, more than ten years ago (gasp!).

I still vividly remember when I had to prepare my defense presentation, how I tried to shoehorn tons of concepts into an impossibly small number of slides… which still were too many for the 45-minute talk I was supposed to give at the defense. After several rehearsals (with an audience!) and lots of feedback from my colleagues and advisors, I finally stumbled upon a solution. Later on, I have found that a similar structure was also helpful to other doctoral students preparing their defenses.

The rest of the post takes the form of a presentation design pattern , i.e., a description of “a problem that occurs over and over again in our environment, and […] the core of the solution to that problem, in such a way that you can use this solution a million times over, without ever doing it the same way twice." 1 (a concept originally proposed in architecture, and later used in software engineering, pedagogy and many other fields). I have called this pattern Swath and Dive (for reasons that will become obvious in a minute).

The context: when is this pattern applicable?

When you have to prepare an oral presentation for a doctoral dissertation defense. This pattern is especially helpful if the research is a bit complicated (e.g., composed of multiple contributions , multiple studies, or using multiple research methods) and it is not obvious what contents to include/exclude from the presentation.

What is the problem? What forces are at play?

The main problem this pattern tries to solve is the seeming impossibility of showing 3+ years of research work in less than one hour. While time restrictions and structure for the defense are different in different countries, typically 25-60 minutes are allocated for the presentation. This limited time is a key force at play, but there are others as well:

• The sheer volume of a thesis dissertation’s contents (typically, a 100-500 pages document), which itself is a condensation of years of hard research work.
• Defending PhD students need to prove to the jury that they are now competent, independent researchers (i.e., they master the literature of their topic, are able to apply a research methodology and think critically about the results ).
• The varying levels of expertise and familiarity of the jury members with the concrete thesis topic.
• The varying levels of knowledge that jury members have of the dissertation materials (i.e., did they read the dissertation document in full? with what level of attention?). While all members are supposed to have read the document, in practice there is a lot of heterogeneity in compliance.

The typical end product of these forces is what I call the “skimming” approach to the defense presentation (see picture below): The presentation provides only a very high level overview of the main elements of the dissertation document (sort of like a table of contents). More often than not, too much time is spent in the introductory and related literature parts of the presentation (which are somehow “safe”, less likely to be criticized – another instance of avoidance at work in the PhD ), and time runs out when the student is getting to the really interesting part for the jury (the student’s own work). This approach of course has the critical flaw of not showcasing enough of the student’s own abilities and research outcomes.

Skimming: A typical approach to selecting thesis defense content

How to avoid “skimming” your dissertation? Enter Swath and Dive .

The solution: Swath and Dive

What I propose in this pattern is to structure the presentation in a different way, a way that tries to balance the need for an overview of the dissertation and (at least some of) the richness of the investigation and the hard work the student has put behind it. The proposed structure goes like this:

A swath is “a long broad strip or belt” of grass, often left by a scythe or a lawnmower. In the context of a dissertation defense presentation, this is where the student gives the overview of the main elements of the thesis: key related scientific literature , main research questions , contributions to knowledge the dissertation makes, etc. Long-time readers of the blog will recognize these key elements as the components of the CQOCE diagram , one of the key reflection exercises in the “Happy PhD Toolkit” to (iteratively) understand and discuss with supervisors the overall view of the thesis. Aside from those key elements, probably some notes about the research methodology followed (which are not part of the canonical CQOCE diagram exercise) will also be needed.

In a sense, the Swath is not so different from the typical “skimming” mentioned above. There are several crucial differences, however: 1) when developing the Swath , we need to keep in mind that this is only a part (say, 50%) of the presentation time/length/slides; 2) the Swath should give equal importance to all its key elements (e.g., avoiding too much time on the literature context of the thesis, and making the necessary time for the student’s own research questions, contributions and studies); and 3) the Swath does not need to follow the chapter structure of the dissertation manuscript, rather focusing on the aforementioned key elements (although scattering pointers to the relevant chapters will help orient the jury members who read the dissertation).

Then, within this high-level Swath describing the dissertation, when we mention a particular contribution or study, it is time to do…

This part of the presentation is where the student selects one study or finding of the thesis and zooms in to describe the nitty-gritty details of the evidence the student gathered and analyzed (if it is empirical research), how that was done, and what findings came out of such analysis. The goal here is to help the audience trace at least one of those high-level, abstract elements, all the way down to (some) particular pieces of the raw data, the evidence used to form them.

How to select which part to Dive into? That is a bit up to the student and the particular dissertation. The student can select the main contribution of the dissertation, the most surprising finding, the largest or most impressive study within the work, or the coolest, most novel, or most difficult research method that was used during the dissertation process (e.g., to showcase how skillfully and systematically it was used). The student should give all the steps of the logic leading from low-level evidence to high-level elements – or as much as possible within the time constraints of the presentation (say, 30% of the total length/time/slides).

An essential coda: Limitations and Future Work

Although this didn’t make it to the title of the pattern, I believe it is crucially important to keep in mind another element in any good defense presentation: the limitations of the student’s research work, and the new avenues for research that the dissertation opens. These two areas are often neglected in crafting the defense presentation, maybe with a single slide just copy-pasting a few ideas from the dissertation manuscript (which were themselves hastily written when the student was exhausted and rushing to finish the whole thing). Yet, if the student convinced the jury of her basic research competence and knowledge during the Swath and Dive part, a big part of the jury questions and discussion will focus on these apparently trivial sections.

When doing the limitations, the student should gloss over the obvious (e.g., sample could have been bigger, there are questions about the generalizability of results) and think a bit deeper about alternative explanations that cannot be entirely ruled out, debatable aspects of the methodology followed… squeeze your brain (and ask your supervisors/colleagues) to brainstorm as many ideas as possible, and select the most juicy ones. For future work, also go beyond the obvious and think big : if someone gave you one million dollars (or 10 million!), what cool new studies could continue the path you opened? what new methods could be applied? what experts would you bring from other disciplines to understand the phenomenon from a different perspective? what other phenomena could be studied in the same way as you did this one? Try to close the presentation with a vision of the brighter future that this research might unleash upon the world.

Swath and Dive: a different way of structuring your defense presentation

To understand how this pattern could look like, I can point you to my own thesis defense presentation, which is still available online . This is not because the presentation is perfect in any way, or even a good example (viewing it today I find it overcomplicated, and people complained of motion sickness due to its fast pace and Prezi’s presentation metaphor of moving along an infinite canvas)… but at least it will give you a concrete idea of what I described in abstract terms above.

If you play the presentation , you will notice that the first few slides (frames 1-6) just lay out the main construct the dissertation focuses on (“orchestration”), the structure of the presentation and its mapping to dissertation chapters. Then, the bulk of the presentation (frames 7-117) goes over the main elements of the dissertation according to the CQOCE diagram , i.e., the Swath part of the pattern. Within this high-level view of the dissertation, I inserted a short detour on the research methodology followed (frames 25-28) and, more importantly, several Dives into specific findings and the evidence behind them (frames 43-48, 66-72, and 99-112). Then, frames 118-136 provide the conclusive coda that includes the future work (but not the limitations, which were peppered through the Swath part of the presentation – a dubious choice, if you ask me today).

Variations and related patterns

As you can see from the example above, one does not need to follow the canonical version of Swath and Dive (mine is rather Swath and Three Dives ). Yet, paraphrasing Alexander, that is the point of the pattern: to have the core of the idea, which you can use to produce a million different solutions, tailored to your particular context and subject matter.

It is also important to realize that this structuring pattern for thesis defense presentations does not invalidate (rather, complements) other advice on preparing scientific presentations 2 , 3 , 4 and thesis defenses more specifically 5 . It is all very sound advice! For instance, once you have the structure of your Swath and Dive defense presentation, you could use the NABC technique to ensure that the Need, Approach, Benefits and Competition of each of your knowledge contributions are adequately emphasized. And you can rehearse intensively, and with an audience able to come up with nasty questions. And so on…

May you defend your thesis broadly and deeply!

Do you know other defense presentation structures that work really well in your discipline? Have you used Swath and Dive in your own defense successfully? Let us know (and share your examples) in the comments area below! (or leave a voice message)

Header image by DALL-E

Alexander, C., Ishikawa, S., & Silverstein, M. (1977). A Pattern Language: Towns, Buildings, Construction (Vol. 2). Oxford University Press. ↩︎

Carter, M. (2013). Designing science presentations: A visual guide to figures, papers, slides, posters, and more (First edition). Elsevier/Academic Press. ↩︎

Anholt, R. R. H. (2009). Dazzle ’Em with Style: The Art of Oral Scientific Presentation (2nd ed). Elsevier, Ebsco Publishing [distributor]. ↩︎

Alley, M. (2013). The craft of scientific presentations: Critical steps to succeed and critical errors to avoid (Second edition). Springer. ↩︎

Davis, M., Davis, K. J., & Dunagan, M. M. (2012). Scientific papers and presentations (Third edition). Elsevier/Academic Press. ↩︎

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Luis P. Prieto

Luis P. is a Ramón y Cajal research fellow at the University of Valladolid (Spain), investigating learning technologies, especially learning analytics. He is also an avid learner about doctoral education and supervision, and he's the main author at the A Happy PhD blog.

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Navigating the PhD Defense: Strategies for a Successful Presentation

Embarking on the journey of a PhD is a remarkable feat, and the pinnacle of this journey is the dreaded yet exhilarating PhD defense. As you stand on the cusp of this pivotal moment, the culmination of years of research and dedication, it's normal to feel nervous and apprehensive. I dreaded that moment from day 1 of my PhD trajectory.

Preparing for an event that makes me nervous helps me best to calm my nerves. However, whenever I asked others on how to prepare I often heard “don’t worry, you got this! You are the expert!”. They are probably right and mean well – but such a statement is not too helpful to an over-preparer like myself. Preparing calms down my nerves so I needed to know HOW.

That is why in this blog post we'll delve into some practical advice and strategies to help you prepare for your defense and face the challenges with confidence.

Prepare for the known

Layman talk: One of the most essential components of your defense is the layman talk, where you explain your research to a non-specialist audience. This is your chance to showcase your ability to communicate complex ideas in a clear and engaging manner. Thorough preparation of the layman talk is crucial. Rehearse your talk multiple times in front of friends, family, or colleagues who are not familiar with your field. Their feedback can help you refine your delivery. When printing your layman talk, ensure it's single-sided to avoid awkward moments during your presentation. You wouldn't want to unintentionally (not) flip pages during your talk (yes, learn from my mistakes….). And remember, – at least in the Netherlands – you can read out your layman talk. You are safe. Practice it well and you start off you defense in a great way that leaves you time to get settled on stage and calm the nerves.

Think of allllll the questions you’ve heard over the past years: Throughout your PhD research journey, you've encountered a plethora of questions – from curious friends and family to critical colleagues at conferences. Take a moment to reflect on these questions and the recurring inquiries that have shaped your understanding of your own work. Compile these questions in a ‘question sheet’ as a valuable resource to tap into during your defense preparation. These questions often mirror the queries that your committee might pose. By addressing these inquiries proactively, you're arming yourself with a robust defense strategy.

Mock defense, invite your best critiques: Before the curtain rises on the main event, host a mock defense. This practice run allows you to simulate the real defense experience and receive feedback from your trusted peers and mentors. Invite those who aren't afraid to ask tough questions and provide constructive criticism. This rehearsal not only helps you refine your responses but also offers a chance to iron out any presentation glitches or nerves that might arise. Mock defenses provide a safe space to identify areas of improvement and build your confidence for the actual defense. Add the questions you encounter to a ‘question sheet’.

Know Your Committee: Facing questions from your committee is an integral part of your defense. I’d suggest to investigate the research interests of your committee members. This will give insight into the types of questions they might ask. It's also a good idea to ask their PhD candidates, your peers or mentors for their input on potential questions they expect from certain committee members. Again, add those questions to your ‘question sheet’.

Eventually you should be left with a little booklet of possible questions and good answers to those. Whereas you surely tackle many of those already in your dissertation, some of them are new and now you have a prepared answer for them. Maybe it’s even possible to bring that ‘question sheet’ + answers to your defense.

Prepare for the unknown

Of course, sometimes you can prepare as much as you want but there might come a question that throws you off. Here are some strategies you could refer back to in case of emergency.

Three Key Messages: Have three main takeaways from your research that you can seamlessly revert to in case you feel overwhelmed or need to refocus your response.

Special Case Scenarios : If you encounter a question you're unsure about, consider sharing a specific example or case study from your field work. While it might seem cliché, it's a practical approach to demonstrate your understanding and practical application of your research. Redirecting a question to a specific, intriguing aspect of your field work can be an effective way to respond thoughtfully.

Embracing the "Recite Your Dissertation" Approach: While the idea of reciting your entire dissertation might sound monotonous, it's a method with a purpose. By revisiting the core elements of your research, you ensure that your committee is well-acquainted with your key findings and contributions. The defense is not there to produce new knowledge, but it should be an investigation and test of your current work.

Lastly, take your time: The Power of Poise and Thoughtfulness

During your defense, it's essential to maintain a composed demeanor. Remember, it's perfectly acceptable to take a moment to collect your thoughts before responding to a question. Avoid rushing through your answers; instead, take your time to formulate thoughtful responses that showcase your expertise and understanding.

As you approach your PhD defense, it's important to remember that it's not just a test of your knowledge and research but also an opportunity to demonstrate your ability to communicate and engage with your audience. By preparing a compelling layman talk, anticipating and strategizing for potential questions, and embracing the core messages of your research, you can navigate this challenge with confidence and grace. And, yes, finally I’m going to repeat what you have heard so many times before: your defense is a celebration of your academic journey and a stepping stone to your future endeavors. So, stand tall, take your time, and shine brightly as you showcase the fruits of your labour to your committee and peers. Best of success! You got this.

Lisa-Marie Kraus

As part of the Becoming a Minority (BaM) project, funded by ERC and led by prof. dr. Maurice Crul as PI., Lisa-Marie Kraus conducted her PhD research at the Vrije Universiteit Amsterdam and defended her dissertation in October 2022. Her research interests concern the experiences of people without a migration background in European majority-minority cities.

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How to prepare an excellent thesis defense

What is a thesis defense?

How long is a thesis defense, what happens at a thesis defense, your presentation, questions from the committee, 6 tips to help you prepare for your thesis defense, 1. anticipate questions and prepare for them, 2. dress for success, 3. ask for help, as needed, 4. have a backup plan, 5. prepare for the possibility that you might not know an answer, 6. de-stress before, during, and after, frequently asked questions about preparing an excellent thesis defense, related articles.

If you're about to complete, or have ever completed a graduate degree, you have most likely come across the term "thesis defense." In many countries, to finish a graduate degree, you have to write a thesis .

A thesis is a large paper, or multi-chapter work, based on a topic relating to your field of study.

Once you hand in your thesis, you will be assigned a date to defend your work. Your thesis defense meeting usually consists of you and a committee of two or more professors working in your program. It may also include other people, like professionals from other colleges or those who are working in your field.

During your thesis defense, you will be asked questions about your work. The main purpose of your thesis defense is for the committee to make sure that you actually understand your field and focus area.

The questions are usually open-ended and require the student to think critically about their work. By the time of your thesis defense, your paper has already been evaluated. The questions asked are not designed so that you actually have to aggressively "defend" your work; often, your thesis defense is more of a formality required so that you can get your degree.

• Check with your department about requirements and timing.
• Re-read your thesis.
• Anticipate questions and prepare for them.
• Create a back-up plan to deal with technology hiccups.
• Plan de-stressing activities both before, and after, your defense.

How long your oral thesis defense is depends largely on the institution and requirements of your degree. It is best to consult your department or institution about this. In general, a thesis defense may take only 20 minutes, but it may also take two hours or more. The length also depends on how much time is allocated to the presentation and questioning part.

Tip: Check with your department or institution as soon as possible to determine the approved length for a thesis defense.

First of all, be aware that a thesis defense varies from country to country. This is just a general overview, but a thesis defense can take many different formats. Some are closed, others are public defenses. Some take place with two committee members, some with more examiners.

The same goes for the length of your thesis defense, as mentioned above. The most important first step for you is to clarify with your department what the structure of your thesis defense will look like. In general, your thesis defense will include:

• your presentation of around 20-30 minutes
• questions from the committee
• questions from the audience (if the defense is public and the department allows it)

You might have to give a presentation, often with Powerpoint, Google slides, or Keynote slides. Make sure to prepare an appropriate amount of slides. A general rule is to use about 10 slides for a 20-minute presentation.

But that also depends on your specific topic and the way you present. The good news is that there will be plenty of time ahead of your thesis defense to prepare your slides and practice your presentation alone and in front of friends or family.

Tip: Practice delivering your thesis presentation in front of family, friends, or colleagues.

You can prepare your slides by using information from your thesis' first chapter (the overview of your thesis) as a framework or outline. Substantive information in your thesis should correspond with your slides.

Make sure your slides are of good quality— both in terms of the integrity of the information and the appearance. If you need more help with how to prepare your presentation slides, both the ASQ Higher Education Brief and James Hayton have good guidelines on the topic.

The committee will ask questions about your work after you finish your presentation. The questions will most likely be about the core content of your thesis, such as what you learned from the study you conducted. They may also ask you to summarize certain findings and to discuss how your work will contribute to the existing body of knowledge.

Tip: Read your entire thesis in preparation of the questions, so you have a refreshed perspective on your work.

While you are preparing, you can create a list of possible questions and try to answer them. You can foresee many of the questions you will get by simply spending some time rereading your thesis.

Here are a few tips on how to prepare for your thesis defense:

You can absolutely prepare for most of the questions you will be asked. Read through your thesis and while you're reading it, create a list of possible questions. In addition, since you will know who will be on the committee, look at the academic expertise of the committee members. In what areas would they most likely be focused?

If possible, sit at other thesis defenses with these committee members to get a feel for how they ask and what they ask. As a graduate student, you should generally be adept at anticipating test questions, so use this advantage to gather as much information as possible before your thesis defense meeting.

Your thesis defense is a formal event, often the entire department or university is invited to participate. It signals a critical rite of passage for graduate students and faculty who have supported them throughout a long and challenging process.

While most universities don't have specific rules on how to dress for that event, do regard it with dignity and respect. This one might be a no-brainer, but know that you should dress as if you were on a job interview or delivering a paper at a conference.

It might help you deal with your stress before your thesis defense to entrust someone with the smaller but important responsibilities of your defense well ahead of schedule. This trusted person could be responsible for:

• preparing the room of the day of defense
• setting up equipment for the presentation
• preparing and distributing handouts

Technology is unpredictable. Life is too. There are no guarantees that your Powerpoint presentation will work at all or look the way it is supposed to on the big screen. We've all been there. Make sure to have a plan B for these situations. Handouts can help when technology fails, and an additional clean shirt can save the day if you have a spill.

One of the scariest aspects of the defense is the possibility of being asked a question you can't answer. While you can prepare for some questions, you can never know exactly what the committee will ask.

There will always be gaps in your knowledge. But your thesis defense is not about being perfect and knowing everything, it's about how you deal with challenging situations. You are not expected to know everything.

James Hayton writes on his blog that examiners will sometimes even ask questions they don't know the answer to, out of curiosity, or because they want to see how you think. While it is ok sometimes to just say "I don't know", he advises to try something like "I don't know, but I would think [...] because of x and y, but you would need to do [...] in order to find out.” This shows that you have the ability to think as an academic.

You will be nervous. But your examiners will expect you to be nervous. Being well prepared can help minimize your stress, but do know that your examiners have seen this many times before and are willing to help, by repeating questions, for example. Dora Farkas at finishyourthesis.com notes that it’s a myth that thesis committees are out to get you.

Two common symptoms of being nervous are talking really fast and nervous laughs. Try to slow yourself down and take a deep breath. Remember what feels like hours to you are just a few seconds in real life.

• Try meditational breathing right before your defense.
• Get plenty of exercise and sleep in the weeks prior to your defense.
• Have your clothes or other items you need ready to go the night before.
• During your defense, allow yourself to process each question before answering.
• Go to dinner with friends and family, or to a fun activity like mini-golf, after your defense.

Allow yourself to process each question, respond to it, and stop talking once you have responded. While a smile can often help dissolve a difficult situation, remember that nervous laughs can be irritating for your audience.

We all make mistakes and your thesis defense will not be perfect. However, careful preparation, mindfulness, and confidence can help you feel less stressful both before, and during, your defense.

Finally, consider planning something fun that you can look forward to after your defense.

It is completely normal to be nervous. Being well prepared can help minimize your stress, but do know that your examiners have seen this many times before and are willing to help, by repeating questions for example if needed. Slow yourself down, and take a deep breath.

Your thesis defense is not about being perfect and knowing everything, it's about how you deal with challenging situations. James Hayton writes on his blog that it is ok sometimes to just say "I don't know", but he advises to try something like "I don't know, but I would think [...] because of x and y, you would need to do [...] in order to find out".

Your Powerpoint presentation can get stuck or not look the way it is supposed to do on the big screen. It can happen and your supervisors know it. In general, handouts can always save the day when technology fails.

• Dress for success.
• Ask for help setting up.
• Have a backup plan (in case technology fails you).
• Deal with your nerves.

PhD Defense Template

You’ve done the hard work to prepare your PhD dissertation, and now there’s only one step left: your defense. And Beautiful.ai has the perfect presentation template to help you along the way.

These customizable template slides have all the basic elements of a PhD defense presentation, including an abstract, methodology, research findings, executive summary, and more. The result? A streamlined presentation that’s as professional as it is impressive. All with just a few clicks of the mouse. 

Our PhD defense template can also help you:

• Customize your PhD presentation for different audiences
• Synthesize months of academic work into a concise presentation
• Successfully defend your PhD thesis to your panel

Use our template to create an effective PhD defense presentation

Your PhD defense presentation is a critical step in your academic journey – one that requires a smart and sophisticated format, layout, and story flow. That’s why our template includes everything you need to create an effective presentation. Tailoring this defense template to your unique PhD thesis is simple. Whether you need to create additional data points or showcase more findings, you can quickly bring your visions to life with these customizable templates and our entire library of professionally designed template slides.

Pro Tips for creating your own PhD defense presentation template

When you are thinking of creating your own impactful Phd defense presentation, keep these best practices in mind:

Condensing hours and hours of research can be daunting. Build an outline or table of contents first, then simply stick to that structure as you create your presentation.

It can be easy to get caught up in your research and findings, but don’t forget to answer critical questions like, ‘Why is this important?’ and ‘What results have you achieved?’

Remember: You aren’t recreating your entire thesis into a visual presentation. Limit the amount of content and data you add to each slide.

Your PhD defense presentation is your chance to share all of your hard work. Don’t be afraid to showcase bits of your personality throughout.

More Popular Templates

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Tips for preparing your PhD defense [EASY dissertation defense]

Embarking on the final hurdle of your doctoral journey, the PhD dissertation defense, can feel daunting.

This significant event involves presenting and justifying years of research to a committee of field experts, showcasing your comprehension, originality, and critical thinking skills.

With various expectations from committee members, it’s crucial to know what makes a compelling thesis and how to adeptly defend your arguments. Preparation is key; from choosing well-suited examiners to meticulously preparing for potential questions, every step counts.

This article provides easy-to-follow tips for this process, from how to approach revisions to the actual defense duration, ensuring a smoother dissertation defense.

Top tips for your PhD defence process

• Understand Expectations : Understand what your examiners are looking for in your thesis. They expect it to be relevant to the field, have a clear title, a comprehensive abstract, engage with relevant literature, answer clear research questions, provide a consistent argument, and make a significant contribution to knowledge. They also value the ability to show connections between different parts of the thesis and a confident, positive attitude during the defense.
• Choose the Right Examiners : Make strategic decisions when selecting your examiners. They should be experts in your field, open-minded about cross-discipline work, cited in your work, have a constructive approach, align with your methodology, and respect critical viewpoints. Consider your supervisor’s advice, as they can help identify suitable examiners.
• Thorough Preparation : Understand your institute’s specific defense requirements and practice rigorously. Break down your thesis into sections, time your presentation, focus on key points, and prepare for potential questions. Consider setting up a mock defense to familiarize yourself with the process.
• Master Your Content : Understand your work inside out. Rather than cramming as much information as possible, focus on thoroughly comprehending your research. If faced with an unexpected question during the defense, take a moment to formulate an organized response.
• Manage Your Time : Be aware that dissertation defenses usually last between one to three hours, so ensure your presentation fits within this timeframe. Remember, the defense is an opportunity to showcase your hard work. Be confident and composed throughout the process.

What Is Dissertation Defense?

A PhD defense, also known as a viva , is a critical process that marks the completion of a doctoral degree. It varies from one institution to another and between different countries.

It could be a private examination by a panel of experts in the field or a public defense before an audience. 

In this defense, you present and justify the research you have conducted over many years.

You’ll engage in a rigorous academic conversation about the different aspects of your research, answer questions, and explain your findings and their implications. 

The defense is a chance for the panel to test your comprehension of your chosen subject area, your work’s originality, and its contribution to the field. It also tests your ability to think critically, to articulate your thoughts, and how effectively you can defend your arguments under pressure.

The essence of a PhD defense is not only to assess the validity of the thesis but also to assess the candidate’s proficiency in their subject.

What Are the Expectations of PhD Defence Examiners? Understand your dissertation committee.

Meeting the expectations of committee members in the context of a dissertation is essential for the successful completion of the research.

They will have read your thesis and will be looking for any mistakes or areas that they are unsure about to ask you during your PhD defence.

Here are what PhD defence examiners are looking for in your thesis and may have questions at your oral defence:

A dissertation committee typically consists of external experts (in a similar field) who will engage in robust discussion about your PhD and submitted thesis.  

As committee members, their primary role is to actively engage with the dissertation research, offering constructive feedback and suggestions as well as deciding if you have satisfied the requirements of the university to be awarded a PhD

Here’s my video about the common questions you’ll likely encounter during your defence and how you can answer them:

How to Choose your PhD examiners and committee members

Choosing your PhD examiners requires strategic thinking and insightful conversations with your supervisor. It’s a very important decision and can make your PhD defence much smoother. 

During my PhD, I chose examiners that I had cited and based my work on their preliminary investigations. 

But there are more things to think about before you write down their names!

Here’s a table checklist for choosing your PhD examiners.

First, compile a list of potential examiners who you believe would be appropriate for reviewing your thesis. Discuss your choices with your supervisor, explaining why you consider them suitable. 

If your thesis spans multiple disciplines, consider choosing examiners from each discipline; it ensures intricate knowledge of each field is utilized.

However, ensure these examiners are open-minded about cross-discipline work, as disciplines tend to have unique ways of presenting their findings.

Listen to your supervisor’s advice.

They have experience in these matters and know who would be best qualified to examine your work.

Even if a scholar is high-profile or an editor of a favored journal, they might not be suitable due to methodological differences or varying research approaches. 

Choosing the right examiner is crucial, as an ill-suited examiner could result in undesired outcomes. The goal is to establish a thoughtful academic conversation about your work.

How to Prepare for Dissertation Defense?

To prepare for your dissertation defense, start by understanding the specific requirements of your institute, as the process can vary across countries.

This could include:

• a presentation,
• a conversation with examiners,
• or a combination of both.

Once you know what to expect, practice vigorously. This should not be your first time discussing your work with others – engage in academic conversation, seek feedback and address challenging questions prior to the defense.

Breakdown your thesis into sections and time yourself on each section to manage length. Focus on the key points and avoid irrelevant details.

Creating a mock defense will be helpful in managing time and getting familiar with the process.

Prepare for potential questions. It’s not about cramming as much information as possible, but about understanding your work inside out. Start by preparing answers to common defense questions. In case of an unexpected question, don’t rush to answer. Take a moment, write down key points, and formulate an organized response.

Remember that the defense is an opportunity to showcase years of hard work.

Be confident, and don’t forget to breathe!

How Long Do Dissertation Defenses Usually Last?

 The length of a dissertation defense can vary depending on factors such as the specific requirements of the institution and the complexity of the research being presented.

On average, a dissertation defense usually lasts between one to three hours.

During this time, the candidate will present their research and findings to a panel of experts, often including faculty members and fellow researchers.

The defense typically begins with an introduction by the candidate, followed by a detailed presentation of the research methodology, results, and conclusions.

Panel members then have the opportunity to ask questions and engage in a discussion with the candidate.

It is not unusual for defenses to be quite intense and challenging, as the panel seeks to assess the depth of the candidate’s knowledge and understanding of their research. In some cases, the candidate may be asked to leave the room while the panel deliberates before ultimately reaching a decision on the acceptance or rejection of the dissertation. 

Wrapping up

As the culmination of the doctoral journey, the PhD defense demands meticulous preparation and understanding of its unique rigors.

This entails knowing the expectations of your dissertation committee, choosing the right examiners who offer constructive feedback, and putting considerable time into preparing for your oral defense.

The defense process isn’t a mere formality; it’s a critical examination of the candidate’s comprehension, originality, and critical thinking skills.

It provides an opportunity to exhibit your research and its contribution to your field, defend your arguments, and validate your years of labor.

Thus, selecting well-qualified examiners, anticipating potential questions, and honing your presentation skills are vital for a successful defense.

Students must be registered for their PhD program and finalize their dissertation prior to the defense, which can last anywhere from one to three hours, depending on the institution and the complexity of the research.

Any corrections or major revisions suggested by the dissertation committee members must be completed and submitted weeks prior to the conferral date.

A PhD defense isn’t just a rite of passage for doctoral candidates—it’s the final, decisive step on the journey to earning a doctorate.

It requires the full commitment of the candidate, their dissertation advisor, the committee chair, and all members involved, ensuring that the graduate studies department’s requirements are met, and that the student is admitted to the next phase of their academic or professional journey.

Dr Andrew Stapleton has a Masters and PhD in Chemistry from the UK and Australia. He has many years of research experience and has worked as a Postdoctoral Fellow and Associate at a number of Universities. Although having secured funding for his own research, he left academia to help others with his YouTube channel all about the inner workings of academia and how to make it work for you.

Thank you for visiting Academia Insider.

We are here to help you navigate Academia as painlessly as possible. We are supported by our readers and by visiting you are helping us earn a small amount through ads and affiliate revenue - Thank you!

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10 Tips To Prepare PhD Thesis Defense Presentation

“ PhD thesis defense presentation is prepared at the terminal of the degree to show the research work in the form of a PowerPoint Presentation. Students often fail miserably because they lack knowledge of presentation. Here are some tips to help them.”   

Firstly, congratulate yourself. You have gone through all the pains, problems, and stress and that’s come to over. PhD is a difficult task, indeed. So have done fantastic work, If you are on the way to preparing your PhD defense presentation.

But my friend, the game is yet not over. You are now at the critical phase and now chances of errors are less. For that 1-hour discussion session, everything should be nearly perfect. From your presentation (with a number of slides) to how you will present. 

You have to care about every single point starting from the number of slides, text, visuals, content quantity, and audience attention to the final conclusion. Everything must be in your control. 

But unfortunately, it’s not a story for many. Students fail to give a good presentation, even though their work is great. And advised for re-viva. There are so many reasons for that. Three major points that fail a presentation are– presentation preparation, delivery and audience engagement. 

What is a thesis defense?

The thesis defense is a process to justify your work with logical arguments with the referees. To know more read this article: Defending a PhD thesis like a boss!- an in-depth Guide .

In this article, I will give you 10 tips– proven, practical and actionable to give an amazing PhD thesis defense presentation. Stay tuned. 

10 Tips for PhD Thesis Defense Presentation

1. plan your presentation .

PhD is all about planning– I mean, proper planning. So, you also have to plan for your presentation. Remember, you are at the last stage of getting the honor hence things must be nearly perfect and in your favor. 

Make a rough outline of the points you will discuss in the presentation. Don’t forget to include major and important points. Moreover, give a strong introduction by keeping in mind that the audience is totally unaware of the topic. 

Plan how much text you will use, and the thing about how the evaluator understands and interprets it. Accordingly, prepare your answers. Last, constrain the content in the number of slides recommended by the university. 

Organize each point in a logical sequence and around your research topic only. Don’t give too much information. 

2. Text to the visual ratio 

Your success in the presentation depends on the attention and retention time on each slide. So you should have to balance every slide with texts and visuals. Texts should create curiosity which visuals satisfy and vice versa. 

If your text-to-visual ratio is good, people will give more attention to your talk. However, I strongly recommend not using visuals on every slide. Use when and only it’s needed. After all, it’s a professional demonstration. 

Don’t fill too much text in a slide and the visuals too. Don’t use every image you captured for your results. Use it in the form of one master image, table or chart to show results. Visuals are great for the eyes– the next point explains. 

3. Use visuals 

Imagine there are two types of information on the slide, one written in the form of long text and another in the form of visuals, charts, bars, images and tables, where do you focus? What attracts you more?

Obviously the second one! 

Summarize your ideas, findings and results in the form of a chart, bar, image, table or anything that looks good. Visual helps your audience to engage and at the same time makes things easier to understand. 

Nonetheless, do care about the ratio. Don’t use too many visuals on every slide.

4. Number of slides 

If I ask you, what is the main goal to present your work? To engage an audience and deliver your work. But your research work would only be delivered if people will engage with it. There is a psychology behind numbers. 

People don’t want more if it isn’t understandable. So if at the beginning of the presentation, they know that you have 50 to 60 slides, they naturally feel bored. Try using fewer slides. It creates curiosity. Give more time to explain your point. 

Ideally, I recommend using 20 to 22 slides. 

5. Practice to present 

Practice makes everyone perfect. 

What is more important– Giving more time to prepare the presentation or on how to deliver it? As I aforementioned, planning is the key to success even though you know everything about your research. 

Give more time for preparation. Know which slide contains which point, what is more important, and which slide would take more time. Where to stay and explain, and where to go in a rush. You should have to know everything in order to control the entire session. 

Practice becoming more comfortable with the content you prepared. Record or observe your delivery scheme. Adjust your tone, speech, pace and body language accordingly.  

6. Engage people

People will only admire your work only if they engage. So first, follow the previous point– focus on how you will deliver your presentation. In addition, create curiosity, ask questions, and give some amazing information timely, encourage them to ask questions. 

Also, engage people psychologically— keep a small smile, look confident, and see in their eyes while explaining your point. Dress decently to attract. Use different hand gestures and styles to gain their focus. 

7. Language

You should have a strong grip on the language. If not, work on it, at least for your presentation. Do use transition words to control the flow and engage people. Use emotions with each transition. Use can use words like— furthermore, in addition, however, unfortunately, fortunately, nonetheless, etc. 

Do learn which transition work to use when, why and how, and accordingly use the exact emotion to use it. This increases the overall attention on your presentation. 

8. Strong conclusion 

All’s well that ends well. 

Give a strong conclusion. To end your presentation, give a quick summary– verbally and conclude your point or research in a sentence that best describes it. Create a positive impact by explaining how it would help society or mankind. 

Show a strong emotion to depict the conclusion. Your conclusion should satisfy the audience and inspire them to learn more and ask questions. 

9. Be prepared for discussion 

Now once your session ends, it’s now open for discussion. Encourage or confidently tell the audience to ask their queries. Answer each question to the point and logically. Explain concepts rather than points. 

Admire them for asking questions, and say thank you for their involvement. In case you don’t know the answer, accept it and convince them that you will find the answer. 

10. Technical considerations 

• The first slide should have your research title, name, guide name and all other credentials necessary. 
• The title should be large enough to read and bold. 
• Every slide should have titles and each must be readable enough. 
• Every slide should have a slide number.
• The fond style for presentation is “Times New Roman”. 
• There are no guidelines for font size but every font should be readable enough. 
• Visuals are clear enough and have high quality. 
• Use bold, underline, and highlight when needed.
• Use at least 1.5 spacing between lines. 
• The presentation file must be in ‘.ppt’. 

Wrapping up

Our students have amazing experience delivering their presentations because we have a huge experience on how to prepare it, deliver it and play with the audience’s mind. Our students prepare well, follow our guidelines and know what questions the referee or audience will ask. 

The reason is their preparation and control over their presentation. If you want to make your presentation amazing you can contact us. I will personally guide you in a 1-hour class. Nonetheless, by keeping these points in mind you can make a difference with your ppt. 

I hope this information and tips will help you to deliver an amazing PhD thesis defense presentation.

Dr. Tushar Chauhan is a Scientist, Blogger and Scientific-writer. He has completed PhD in Genetics. Dr. Chauhan is a PhD coach and tutor.

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Preparing for your PhD thesis defence

As you start thinking about the end stages of your PhD, it’s important to understand the processes and timelines related to the thesis defence so that your degree completion is not delayed. Even if your thesis defence seems far away, there are several planning considerations you can consider early on to help the end stages of your PhD go smoothly.

On this page you will find videos, tools, and information about what the PhD thesis defence is , timelines for the PhD thesis defence , and tips for a successful PhD thesis defence .

All PhD students should also ensure that they read the PhD thesis examination regulations and review the thesis preparation guidelines prior to their oral defence. If your thesis defence will be conducted remotely, you should also review the process for a remote thesis defence .

What is the PhD defence?

Understanding the purpose, processes and possible outcomes of the thesis defence can help you feel more prepared for the defence itself. In this video, you’ll learn about what the defence is, who’s there, what happens, and the deliberation and range of possible outcomes.

Transcript - Demystifying the thesis defence at University of Waterloo (PDF)

You may wish to learn more about some of the topics discussed in this video. Here are some helpful links to learn more:

Examination committee members (including the external examiner): Visit the PhD thesis examination regulations section on the  PhD thesis examining committee for more information about the committee members, including information about the external examiner and conflicts of interest.

• Closed thesis defences and non-disclosure agreements: Visit the PhD thesis examination regulations section on guidelines for thesis examination without public disclosure for more information about closed thesis examinations.
• Thesis defence decisions and outcomes: Visit the PhD thesis examination regulations section on  decisions for additional information about decisions and outcomes.
• Thesis submission: Visit the thesis submission webpage for information about the thesis submission process, including approvals that must be obtained before submitting your thesis.
• UWSpace: Visit the Library’s UWSpace webpage for information about what UWSpace is and how to submit, or deposit, your thesis to UWSpace.

Timeline to defence

Early planning considerations.

Well before your defence date, there are several considerations to think about that can help make the end stages of your degree go smoothly and ensure your defence date and degree completion are not delayed:

• Being aware of formatting requirements will save you time on revisions later on – the last thing you want to be doing before submitting your thesis to UWSpace is updating page numbers or your table of contents! Consider using the Microsoft Word or LaTeX thesis template produced by Information Systems & Technology. 
• The Dissertation Boot Camp can help you develop effective writing practices and strategies for completing your thesis, while the three-part Rock Your Thesis workshop series will provide practical guidance for planning, writing, revising, and submitting your thesis project. You can also book an individual appointment to do backwards planning with an advisor. They can help you utilize the planning tools most effectively, while providing hands-on guidance and feedback.  
• If you are using third-party content, including your own previously published work in your thesis, or seeking intellectual property protection (for yourself or another involved party), there may be implications for your thesis or defence. Learn more about copyright for your thesis , and email [email protected] for help with copyright questions related to your thesis.
• Depending on your departmental or discipline’s norms, you may require approval from your entire committee, or just your supervisor. Ensure you talk with your supervisor and/or committee early on to confirm processes and timelines, so you’re not surprised later.
• Depending on your departmental or discipline’s norms, your supervisor may select an external examiner themselves, or they may seek your input. Talk to your supervisor early on about this process, as in some faculties the external examiner may need to be vetted and approved as early as the term before you wish to defend. Remember that there are conflict of interest guidelines around the appointment of the external examiner , and the PhD candidate should not be in communication with the external examiner prior to the defence.
• A PhD thesis must be on display for a minimum of 4 weeks prior to the defence date. To accommodate, you may need to submit your thesis as early as 6-8 weeks prior to your defence. Review your faculty specific backwards planning tool for the thesis submission deadline in your faculty and learn more about the display period in the PhD thesis examination regulations.
• After your successful thesis defence, you will likely have some required revisions to your thesis. It’s important to understand revision timelines , especially if you’re hoping to become “degree complete” before a tuition refund or convocation deadline. Find tuition refund and convocation deadlines in the important dates calendar .
• Following your thesis defence, there are several steps to be taken before your final, approved thesis is accepted in UWSpace. Ensure that you’re aware of these thesis submission steps and timelines in advance.

Backwards planning tools

Graduate Studies and Postdoctoral Affairs, in collaboration with the Faculties, have prepared faculty specific backwards planning tools to help PhD candidates map out the timelines related to their thesis defence and degree completion.

Select your faculty below to download a PDF copy of the backwards planning tool. We encourage you to discuss your ideal timelines with your supervisor(s) and your department graduate program co-ordinator.

• Faculty of Health backwards planning tool (PDF)
• Faculty of Arts backwards planning tool (PDF)
• Faculty of Engineering backwards planning tool (PDF)
• Faculty of Environment backwards planning tool (PDF)
• Faculty of Mathematics backwards planning tool (PDF)
• Faculty of Science backwards planning tool (PDF)

Tips for success

The PhD thesis defence is the culmination of years of hard work! The tips outlined in this video, compiled from recent PhD graduates and experienced thesis defence chairs, cover tips for preparing for your defence, day-of logistics, and defending successfully.

Transcript - Your Thesis Defence: Tips for Success (PDF)

Will your PhD thesis defence be held remotely? We’ve compiled additional tips for success specifically related to the remote defence.

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PhD Dissertation Defense Slides Design: Tips for designing the slides

• Tips for designing the slides
• Presentation checklist
• Example slides
• Additional Resources

Example Slides Repository

• Defense slides examples Link to examples dissertation defense slides.

Email me for questions and schedule an appointment

General tips for slide design

Use a plain background, for engineering, a plain, white background is generally ideal for dissertation proposals and defenses. don't pick a template that is too busy and distracting.,     , remember to add p age numbers, having page numbers in your slides will allow your advisors and peers to give comments. during your presentation, the committee members can use page numbers to reference specific slides for their questions. .

Less is more

Don't put too many words on one slide (no more than 20 words per slide, in general)., when words are inevitable, highlight the keywords in each sentence (see examples from i. daniel posen's and l. cook's slides).

Take advantage of animations

Use animations to explain complicated ideas in figures, tables, etc. you can use different slides instead of the animation functions in ms powerpoint; it will avoid overlapping text boxes or pictures when converted to pdf. , below is an example from c. kolb's defense slides. by a step-by-step revealing process, kolb was able to explain each detail without the distraction of other results. .

Write down your notes 

Write down your notes with either bullet points or full sentences as a script. this can help you to remember what you want to say during your defense. when you are practicing, you won't have to come up with new things to say every time and won't forget what you planned to talk about. .

Example 1: slide with notes - exact words to say (C. Mailings 2017)                                               Example 2: slide with notes - bullet points (I. D. Posen 2016) 

Be smart about the title of each slide

Use descriptive language to summarize the key point of the slide, and avoid using vague terms or the same title for several slides that have different contents..

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Hints for PhD Defenses

At Columbia, PhD defenses are generally not public, although CS usually allows a student audience. Defenses consist of four parts: first, the candidate introduces themselves, then presents a summary of their work, interrupted and followed by questions from the committee. Finally, the committee meets in private to discuss the presentation and dissertation.

While most of the committee will have read most of your thesis, you cannot assume that everyone has read every chapter.

The committee needs to be able to assess impact and depth. Usually, the committee has some idea of this before the defense, but whatever the student can say to make this assessment easier, perhaps just through emphasis, is likely to make the defense go much more smoothly.

Generally, the whole defense will not take more than two hours, but should take considerably less time. Part of the challenge of a defense is to convince the committee that you can summarize the important points of your work in a very limited time.

• What is the problem you are studying?
• Why is it important ?
• What results have you achieved?
• Some committee members will want to know if the works has been published and where and how it was received. For example, if you have written software, indicate where it is being used, either for follow-on work or in some production or test environment.
• Have a list of your thesis-related publications as a slide. Indicate any awards that a paper may have received. For most people, it's easier to list some honor than "brag" about it in person.
• If you have presented your work in a conference or at job talks, be sure to anticipate and address the most common questions asked there.
• The committee should be handed a copy of your slides.
• Be prepared to briefly summarize your background (undergraduate degree, how long at the university, etc.)
• No more than 30 slides, plus "back up" slides with additional material in case of questions. The most effective way of making your committee members mad is to come unprepared with a stack of 80 slides and then madly skip through them.
• Number your slides, particularly if one of your committee members is linked in via speakerphone. Consider using some kind of remote presentation software.
• List your contributions early.
• When presenting your contributions, be sure to use "I" and not "we" so that the committee will know what aspects of the work where yours, and which were group projects.
• Keep discussions of related work very brief, but be prepared to answer questions of the "how does this differ from so-and-so's work" succinctly.
• You will not be asked to prove results again.
• Be prepared to back up any comparative statement with facts, in particular statements like "works better", "faster", "scalable" or "optimal". If you are presenting a protocol, how do you know that it works correctly?
• If you have multiple parts in your dissertation, consult with the committee ahead of time as to whether it makes sense to omit some of them for the presentation.

Hints for Dissertations

• It is better to focus deeply on a single area then to work on several topics, each of which is pursued to a moderate depth.
• Systems work must be coupled with implementation and some kind of numerical comparitive analysis to demonstrate the improvements from existing or alternate approaches.
• Your thesis needs a one page executive summary that a layperson should be able to understand. Test: give it to a relative of yours that does not have an engineering degree...

Miscellaneous Hints

• You are likely only to defend a PhD thesis only once; your defense is a special occasion, so consider dressing appropriately, at least business casual, but a suit is not inappropriate.
• It is customary to provide refreshments for the audience, such as coffee, bagels, cookies and fruit, depending on the time of day.

The Role of PhD Committee Members

• Committee members (should) read the draft thesis (and provide feedback). Obviously, students appreciate an in-depth reading, but it is common for committee members to focus on chapters closest to their expertise. Reading depths varies - some provide line edits, others just suggest larger issues that should be addressed ("Your related work section in Chapter 10 is a bit sparse and ends in 2005."). While this is probably not the place to suggest "do another year of research", filling in gaps is ok and I'd rather postpone a defense by a month if needed. Before the committee gets the thesis, I've done a first or sometimes second reading, but the whole point of the committee is to keep the advisor honest (and complement his or her knowledge or taste).
• Committee members attend the PhD defense, usually in person. Typically, this lasts about 90 minutes. Take notes on any editorial improvements (e.g., "make clear that the throughput graph is measured in gallons/minute"). Vote on the outcome and sign the form.
• If the student is given a set of changes to implement, the advisor asks students to detail on how they implemented the changes, similar to how an author may respond to reviewer comments for a journal. The committee informally signs off, or not, on these changes. There is no need to re-read the thesis.

Checklist for Dissertation

• Spell check;
• Check for missing chapter or figure references;
• Section, Chapter, Figure are capitalized;
• All references converted from [1][2][3] to [1,2,3];
• Consistent capitalization in captions;
• Verify expansion of all abbreviations at first instance;
• Avoid "tremendous", "huge" and other similar adjectives;
• End to end -> end-to-end;
• Check references for capitalization of abbreviations and missing data such as page numbers.

(Contributions by Ed Coffman, Jonathan Rosenberg and Sal Stolfo.)

Translations: Polish

How to greet the audience at the beginning of a PhD defense talk/presentation?

1 expert answer.

Jeremiah J. answered • 04/11/19

Science Communication Advisor specializing in Oral Presentations

First off, congratulations on reaching your defense! You did something not many people get to do (including me), so take some time to feel excited in-between feeling nervous.

There are standard ways to begin a talk, and generally, these aren't bad to memorize. For one, having a low-impact (and brief) start to your presentation memorized will let you look away from your computer and out at the audience. You'll be able to make eye contact with your colleagues, friends, and maybe family, and use their delight and smiles to boost your mood.

So something like, "My name is [______], and welcome to my thesis defense. So thank you to my committee [take a second to look them each in the eyes as you say it], my friends [find them in the audience and smile at them], and colleagues [same thing here] for coming here and finding this room. Thank you for your support and your attendance. I'm here to tell you about the results of my research over the last [five, six, or seven] years of my life. So without any further ado, let me begin."

(and then you can begin)

From the defenses that I went to, people waited to name specific names at the end of their talk in a sort of pre-question acknowledgement section. So that's when you can pull out the specific titles and names of your committee members. Starting with the general acknowledgement keeps it short, but it also gives you a moment to collect yourself that should (in my experience) make the whole presentation go easier.

In the end, think about what you said about remembering the beginning of your colleagues' defenses: you didn't remember. In other words, you can't mess this up! People are there to celebrate with you -- even if your committee still has the final say -- so try and keep that in mind.

Good luck, and have fun. Congratulations again!

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Phd defense slides and lessons learned.

In July this year I finally defended my PhD which mainly focused on (adversarial) robustness and uncertainty estimation in deep learning. In my case, the defense consisted of a (public) 30 minute talk about my work, followed by questions from the thesis committee and audience. In this article, I want to share the slides and some lessons learned in preparing for my defense.

My PhD defense marks the successdful end of a four year journey in machine learning and computer vision research. While defense vary widely across institutions and universities, I had to prepare a 30 minute talk that is followed by questions from the committee and audience. In addition to the difficulty of squeezing several papers into a 30 minute polished talk, there was also a significant delay between submitting and defending my PhD — roughly 4 months. While I can't share the final thesis yet, you can find my defense slides below, followed by some lessons learned in preparing for my defense.

The slides include some GIFs, so with 27MB the download might take a second. Also, make sure to view them in a PDF viewer supporting animations:

Lessons Learned

Preparing for my defense took significantly longer than I initially estimated. I thought it could not be too hard to put together slides of all my projects, given that I already gave a few talks and had slides for most of my papers ready. However, preparing a polished talk that highlights achievements, giving a good high-level intuition while at the same time demonstrating technical knowledge, was incredibly difficult and took multiple iterations. Besides, I wanted to talk to steer the committee's questions to some extent and make sure I will stick to the 30 minute limit. Here are some lessons I learned surrounding the preparation:

• Start preparing early enough: Even though I thought the preparation to take less time, I took some long weekends roughly one and a half months before the defense to start preparing the slides. Looking back, this was a great decision as I ended up working on my slides until the last couple of days before the defense.
• Schedule a practice talk: In my case, a practice talk really made a huge difference. Initially, I included too much content in my slides and it was good to get objective feedback on what to focus on, where more details and time is required and which topics can be covered with less details. I had the practice talk two weeks before the defense and I really used these two weeks to improve my presentation.
• Practice: Before the practice talk, I practiced the talk and timed it to the minute. This really came in handy in the end because it reduced stress as I knew exactly how to start or get back into the talk on each slide. During the talk this was also helpful as interruptions didn't break the flow of my presentation.
• Backup slides: Even though I did not end up using most of my backup slides, preparing them helped me to think about potential questions that the committee might ask.
• Test the setup: A day before the defense, I tested the technical setup. As my defense was hybrid, there was a lot that could go wrong — the virtual meeting room, the microphone etc. It really reduced stress to have it tested once before the defense. Some things that are important to keep in mind is that the setup should also take into account discussion and questions of the committee/audience which are sometimes difficult to handle in a hybrid setting.

Regarding the content of the talk, I found the following to work well — and I found a similar scheme can be found in many other defenses, as well:

• Fuse motivation with the outline: I ended up putting a lot of effort into a good motivation of my talk that also happened to reflect the outline of my talk. This really helped to tell a consistent high-level story throughout the talk.
• Highligh achievements: I feel that it was important to highlight the papers that I have published over the years — even those not included in the talk.
• Technical detail: For two projects, I decided to go into technical detail. While I did not have many technical questions, I got the impression that this was expected by the commitee. Of course, it was tricky to decide which projects to highlight in detail as this usually means that all other projects can only be covered on a higher level.
• Ignore some projects: In order to go into technical detail for few projects, I decided to not talk about three of my papers. I just mentioned this line of work in my conclusion and the introduction. Initially, I found it difficult to let go of these parts, but it helped to improve the focus of the talk.
• Have some slides on future work: An easy way to steer the discussion/questions after the defense talk are future work topics. Also, I found that these slides can be used to end the talk on a positive note by expressing your excitement about future research — note that I had these slides after the conclusion.

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Ph.D. Defense Presentation by Carl Hildebrandt

Computer Science Department

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Autonomous System Testing: Incorporating Physical Environments and Physical Semantics

Abstract : 

As the integration of autonomous systems becomes increasingly common in our everyday lives, their shortcomings and failures become more apparent. Therefore, rigorous validation to ensure their safety and reliability is paramount. Since autonomous systems behavior is predominantly driven by software, and software validation has achieved significant success in validating applications billions of people use today, it seems natural to attempt to apply current software validation to autonomous systems. Such application, however, requires overcoming two key challenges introduced by the differences between traditional software and autonomous systems, namely the physical environment and the systems physical semantics. Without considering these differences, traditional software testing techniques struggle to cope with a large unbounded input space and to effectively target areas of the software that drive the behaviors of the autonomous system. This work introduces techniques grounded in traditional software analysis that overcome these challenges spanning the entire testing pipeline: test generation, test execution, and test adequacy assessment.

In the area of Test Generation, I investigated techniques to produce tests based on a vehicle's kinematics to ensure they aligned with the physical semantics of the autonomous system, all while using parametrizable scoring models to identify tests that stress an autonomous system. Moreover, I leveraged a vast array of existing sensor data from real-world physical environments to identify performance discrepancies across different versions of an autonomous system. The sensor data that yielded discrepancies were then compared against the autonomous systems Operational Design Domain to determine their relevance.

In Test Execution, I have devised a mixed-reality strategy that bridges the gap between simulation and real-world testing. Recognizing that real-world testing, while ideal, is often impractical, hazardous, and expensive, my approach integrates virtual elements into real physical environments. This allows for validating performance and safety while reducing both cost and time. Additionally, I designed a haptic suit for drones, enabling us to test the physical semantics of a drone by applying forces to the drone in the real world.

Regarding Test Coverage, I created Physical Coverage, one of the first coverage metrics for autonomous systems, which considers both the physical environment and physical semantics of the autonomous system. Utilizing physical reachability analysis and geometric vectorization, this metric offers a quantifiable measure of test suite effectiveness. It has proven instrumental in identifying missing scenarios and redundant tests in datasets such as Waymo's Open Perception dataset.

By addressing these challenges across the entire testing pipeline, this dissertation takes a significant step toward creating safer and more reliable autonomous systems.  

Committee :  

• Matthew Dwyer, Committee Chair   (CS/SEAS/UVA)
• Sebastian Elbaum, Advisor (CS/SEAS/UVA)
• Seongkook Heo, (CS/SEAS/UVA)
• Nicola Bezzo (ESE,ECE/SEAS/UVA)
• Borislava Simidchieva (BBN, Raytheon)