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| Criterion |  Product Discovery Assumption Mapping |  Decision Making Wideband Delphi |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | High | Low | Medium |
Timedifferent | 45-60 min | 1-4 h or multiple rounds | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-8 | 4-12 Experten | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Assumption map, Test backlog, Risk ranking | Estimate Range, Assumption Log, Expert Consensus Notes | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | AssumptionsRiskExperimentsValidation | EstimationExpertsForecasting | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |