Viva, thesis defence, dissertation defense
The terms "viva voce", "thesis defence", and "dissertation defense" refer to the same examination in different academic traditions. In the UK, it is almost always called the viva. In North America and parts of Europe, "thesis defence" or "dissertation defense" is more common. The format varies — but the core challenge is the same: defending your research in a spoken conversation with examiners who have read your work.
Defensia is designed with the UK viva format in mind, and is useful for any doctoral candidate preparing for this kind of spoken examination.
What it means to defend a thesis
Defending a thesis is not simply presenting your work — it is justifying every significant decision you made in it. Why this research question? Why this methodology? Why this analytical approach? Why these conclusions, and not others?
The examiners have read your thesis and they will probe the decisions that shape it. They are not trying to catch you out — they are testing whether you understand your own work well enough to explain and defend it.
The best preparation is practice. Specifically, spoken practice — because the defence is spoken, and articulating ideas out loud is a distinct skill from knowing them. Defensia gives you a private space to rehearse that conversation before the real thing.
What to rehearse before your defence
Your research contribution
Can you state precisely what your thesis adds to the field — clearly and without hedging? This is often the first question and the one examiners press hardest on.
Your methodological choices
Why this approach? What alternatives did you consider? How did you address its limitations? Methodology questions take up a significant part of most viva conversations.
Your limitations
Every thesis has limitations. Being able to acknowledge them precisely and explain their scope — without undermining your findings — is a key skill to rehearse.
Your claims and evidence
How confident are you in your conclusions? Can you connect each claim to the evidence that supports it? Can you discuss how they might be interpreted differently?
How Defensia works
Upload your thesis
Defensia indexes your full thesis. Every question is grounded in what you actually wrote — not a generic template.
Choose an examiner style
Select the style of questioning that suits your preparation. Start supportive, move to rigorous as your defence approaches.
Practise the spoken defence
Answer out loud. Respond to follow-ups. Rehearse the actual format of the examination, not a written approximation of it.
Review feedback and repeat
Scored feedback after every session. Practise specific areas you want to improve. Track your progress across sessions.