Use when
- A risky assumption needs evidence before build.
- A team needs quick feedback on a concept, journey, dashboard, or admin workflow.
Best for
- Concept validation
- Testing risky flows before development
- Comparing alternatives quickly
How to design it
- Choose the lightest prototype that can answer the question.
- State the prototype's assumptions and limitations clearly.
- Keep the output tied to decisions, not just reactions.
Prototype Test TemplateUse this when you need a practical reading template.
View template
- What decision is this prototype meant to support?
- What assumptions are intentionally not represented?
- What would count as strong enough evidence to continue?
Typical output
- Concept validation notes
- Flow decisions
- Risks to investigate further
Useful resources
Nielsen Norman GroupUX Prototypes: Low Fidelity vs. High Fidelity
Helps choose the right prototype fidelity for the question being tested.
Nielsen Norman GroupUX Research Methods GlossaryIncludes prototype testing and concept testing definitions for method clarity.
Nielsen Norman GroupIterative Design and Prototype Testing Case StudyShows how prototype testing can support iterative product decisions.