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| Criterion |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |  Innovation Lean Startup |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | 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 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 1-5 Tage | Wochen bis Monate je Lernzyklus | 45-75 min |
Participantsdifferent | 5-12 Interviews | Nutzertraffic | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Test Matrix, Test Plan |
Tags1 shared | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery | LeanStartupValidationMVP | ExperimentsValidationDiscoveryOptions |