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| Criterion |  Product Discovery Fake Door Test |  Business Strategy Business Model Stress Test |  Product Discovery Smoke Test |  Product Discovery Learning Card |
|---|---|---|---|---|
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. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 1-5 Tage | Half day | 1-5 Tage | 25-40 min |
Participantsdifferent | Nutzertraffic | 3-8 | Nutzertraffic | 1-5 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Stress Test Report, Action Plan per Scenario | Interest Metrics, Conversion Signal, Learning Note | Learning Card with evidence and next action |
Tagsno overlap | ValidationExperimentsDemandDiscovery | StrategyBusiness modelRiskDiagnosis | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryLearning |