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| Criterion |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |  Product Discovery Smoke Test |
|---|---|---|---|---|
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. | 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. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-60 min je Interview | 1-5 Tage | 45-75 min | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan | Interest Metrics, Conversion Signal, Learning Note |
Tags1 shared | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandGrowth |