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| Criterion |  Product Discovery Fake Door Test |  Growth Flywheel |  Product Discovery Learning Card |  Growth A/B Testing |
|---|---|---|---|---|
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. | Growth often breaks down where a reinforcing mechanism builds up too much friction. A Flywheel shows the cycle of value, repetition, and reinforcement meant to sustain growth. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-5 Tage | 60-120 min | 25-40 min | 1-4 Wochen |
Participantsdifferent | Nutzertraffic | 3-8 | 1-5 | 1-6 |
Formatdifferent | Async | Workshop | Workshop + async | Async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Flywheel Map, Friction Points, Growth Levers, Experiment Backlog | Learning Card with evidence and next action | Experiment results, Decision log, Learning summary |
Tagsno overlap | ValidationExperimentsDemandDiscovery | GrowthRetentionConversion | ExperimentsValidationDiscoveryLearning | ExperimentsGrowthAnalyticsValidation |