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| Criterion |  Innovation Lean Startup |  Product Strategy Lean Canvas |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 45-90 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-8 | 1-6 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Lean Canvas, Core Assumptions, Experiment Backlog | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | LeanStartupValidationMVP | StartupLeanAssumptionsBusiness model | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |