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| Criterion |  Product Discovery Problem Interview |  Decision Making Trade-off Analysis |  Growth A/B Testing |  Product Discovery Fake Door 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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 30-60 min je Interview | 45-120 min | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 5-12 Interviews | 2-8 | 1-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides | Experiment results, Decision log, Learning summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | DiscoveryInterviewsValidation | TradeoffsDecisionCriteriaOptions | ExperimentsGrowthAnalyticsValidation | ValidationExperimentsDemandDiscovery |