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| Criterion |  Product Discovery Fake Door Test |  Product Discovery Assumption Mapping |  Product Strategy DIBB |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-5 Tage | 45-60 min | 1-2 h | 45-90 min |
Participantsdifferent | Nutzertraffic | 2-8 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Assumption map, Test backlog, Risk ranking | DIBB document, Belief list, Bet list, Learning report | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ValidationExperimentsDemandDiscovery | AssumptionsRiskExperimentsValidation | StrategyDecisionAssumptionsHypothesis | AssumptionsRiskDecisionDiscovery |