By the end of this lesson you can
- Approach a live design challenge with a clear structure.
- Think aloud and involve the interviewers.
- Manage time and scope under pressure.
The idea
A whiteboard challenge (or live design exercise) asks you to tackle a design problem in 30 to 60 minutes, often on a whiteboard or online board. Interviewers care far more about how you think than about the final sketch.
A reliable structure
- Clarify: ask questions about users, goals, constraints and success.
- Frame: state who you are designing for and the problem you will focus on.
- Explore: map the user journey and list several ideas.
- Choose: pick one idea and explain why.
- Sketch: draw key screens or steps.
- Evaluate: explain risks, how you would test it and what you would measure.
Think aloud
Narrate your reasoning. Treat interviewers as collaborators: ask their opinion, check assumptions and respond to hints.
Manage time
Agree a rough plan at the start and glance at the clock. It is better to reach evaluation with rough sketches than to perfect one screen.
Why it matters in real projects
Live challenges reveal how you approach unfamiliar problems, collaborate and communicate under pressure. A clear structure helps you stay calm and shows a professional process. Practising in advance makes a huge difference, because the format feels unnatural at first.
A realistic example
Prompt: "Design a way for library members to borrow e-books."
The candidate asks who the members are, what devices they use and what the library wants to achieve. They focus on older members borrowing their first e-book, map a journey from discovery to reading, sketch three ideas, choose a guided first-borrow flow and finish by explaining how they would test it with five members and measure first-time completion.
Step by step
Clarify
Ask three to five questions about users, goals and constraints.
Frame
State the user and problem you will focus on.
Plan time
Share a rough time plan.
Explore
Map the journey and list ideas.
Choose and sketch
Pick one idea and sketch key steps.
Evaluate
Explain risks, testing and measures.
Common mistakes
Mistake Jumping straight to screens.
Instead Clarify and frame first.
Mistake Working in silence.
Instead Think aloud and involve interviewers.
Mistake Running out of time on one screen.
Instead Plan time and keep sketches rough.
Check your understanding
Choose an answer, then check it. There is an explanation either way.
Practice exercise
Exercise · about 45 min
Practise a challenge
Run a timed practice challenge: "Design a way for neighbours to share tools."
Steps
- Write clarifying questions and assumed answers.
- Frame the user and problem.
- Explore, choose and sketch in 25 minutes.
- Finish with risks, testing and measures.
Deliverable
Photos or exports of your board and a short self-review.
Self-assessment
Tick each item when it is true of your exercise. Be honest; this is for you.
4 items
Summary
- Live challenges test thinking, not drawing.
- Clarify, frame, explore, choose, sketch, evaluate.
- Think aloud and collaborate.
- Manage time and keep it rough.
Further reading
Third-party sources, chosen for reliability. They open in a new tab.
- Design thinking (opens in a new tab)Interaction Design Foundation
- Journey mapping 101 (opens in a new tab)Nielsen Norman Group
Your notes
Marking complete updates your course and roadmap progress.