Prototype brief
Scope a prototype around one decision and the minimum realistic fidelity needed to learn with confidence.
Product features · 45 min · Standard · 17 questions
Decision and audience
Which decision must the prototype support?
Which decision will the prototype not answer?
Who will use the prototype?
Who needs to review the prototype?
Which access needs must the prototype support?
Prototype boundary
What interaction fidelity does the decision require?
What visual fidelity does the decision require?
Which critical scenario must work?
Which scenario variation could change the result?
Which failure state must be represented?
What realistic data is needed?
Which apparent action will not work?
Use and disposal
What instruction will participants receive?
Where will the prototype be used?
Who may access the prototype?
How will reviewers know which version is current?
What happens to the prototype after the decision?
How to use this brief
Use this brief as a bank of questions for the conversation. Choose what is relevant, mark covered questions as you go, and skip anything that has already been answered.
Use this brief when...
Use when you need to scope a prototype around one decision and the minimum realistic fidelity needed to learn with confidence.
Best used as: Workshop
- Category
- Product features
- Discussion time
- 45 minutes
- Depth
- Standard
- Last updated
- Jul 21, 2026
- Scope
- Design briefs
- Best used as
- Workshop
- Design roles
- Product designer
- Audience
- Product designersUX and UI designersDesign leadsFreelancers and consultants
- Platforms
- Cross-platform
- Company type
- StartupB2BB2CEnterprise
- Product stage
- Early-stageGrowthMature product
- Tags
- product-featuresprototypeproduct-and-experienceprototypedesign-validationdecision-support