Aspect Prototype MVP
Primary goal Validate concept/UX quickly Validate market demand with a working product
Fidelity Low → high (sketch → interactive mock) Production-grade core only (no extras)
Who it’s for Internal team, stakeholders, small user tests Early adopters, real customers
Environment Off-production (design tools/throwaway code) Live environment (deployed, tracked)
Output Screens, flows, and a clickable demo Usable app with minimal features
Validation focus Clarity, task success, desirability Activation, retention, revenue, feedback loops
Success metrics Task completion, SUS score, time-on-task Sign-ups, DAU/MAU, conversion, churn
Typical timeline Days to weeks Weeks to months
Relative cost Low to medium Medium to high (engineering + ops)
Risk if skipped Build the wrong UX Build the wrong product
Common tools CI/CD, analytics, feature flags, error tracking Build the wrong product
Ownership Design-led (with PM input) Product/Engineering-led (with UX support)
Best when You need fast UX learning before building You’re ready to learn from real usage
Bad fit when You need data from real behavior You don’t yet know the right problem
Example Clickable checkout flow to test clarity Live app with only “guest checkout” + payments