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| Criterion |  Product Discovery Fake Door Test |  Product Strategy Lean Canvas |  Product Discovery Learning Card |  Innovation Lean Startup |
|---|---|---|---|---|
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. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-5 Tage | 45-90 min | 25-40 min | Wochen bis Monate je Lernzyklus |
Participantsdifferent | Nutzertraffic | 1-6 | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | Lean Canvas, Core Assumptions, Experiment Backlog | Learning Card with evidence and next action | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | ValidationExperimentsDemandDiscovery | StartupLeanAssumptionsBusiness model | ExperimentsValidationDiscoveryLearning | LeanStartupValidationMVP |