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| Criterion |  Product Discovery Smoke Test |  Knowledge Modeling Knowledge Mapping |  Product Discovery Assumption Mapping |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 1-5 Tage | 1-3 h | 45-60 min | 1-5 Tage |
Participantsdifferent | Nutzertraffic | 3-12 | 2-8 | Nutzertraffic |
Formatdifferent | Async | Workshop | Workshop + async | Async |
Outputdifferent | Interest Metrics, Conversion Signal, Learning Note | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Assumption map, Test backlog, Risk ranking | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ValidationExperimentsDemandGrowth | KnowledgeMappingRisk | AssumptionsRiskExperimentsValidation | ValidationExperimentsDemandDiscovery |