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| Criterion |  Product Discovery Problem Interview |  Decision Making Assumption Surfacing |  Product Discovery Fake Door Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 1-5 Tage | 45-60 min |
Participantsdifferent | 5-12 Interviews | 2-8 | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Assumption List, Critical Assumptions, Learning Plan | Click Data, Interest Signal, Learning Decision | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | DiscoveryInterviewsValidation | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandDiscovery | AssumptionsRiskExperimentsValidation |