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| Criterion |  Product Discovery Fake Door Test |  Product Discovery Problem Interview |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
Purposedifferent | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-5 Tage | 30-60 min je Interview | 1-2 Wochen pro Iteration |
Participantsdifferent | Nutzertraffic | 5-12 Interviews | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Problem Evidence, Risk Notes, Customer Segments | Prioritized Assumption List, Test Plan, Results Report |
Tags2 shared | ValidationExperimentsDemandDiscovery | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryAssumptions |
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