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| Criterion |  Product Discovery Fake Door Test |  Product Discovery Problem Interview |  Product Discovery Test Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-5 Tage | 30-60 min je Interview | 20-35 min | 45-75 min |
Participantsdifferent | Nutzertraffic | 5-12 Interviews | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Problem Evidence, Risk Notes, Customer Segments | Test Card with a pre-set threshold | Test Matrix, Test Plan |
Tags2 shared | ValidationExperimentsDemandDiscovery | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryOptions |