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| Criterion |  Innovation Lean Startup |  Facilitation Dot Estimation |  Product Discovery Riskiest Assumption Test |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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 size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | 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 | Low | Medium | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | 5-20 min | 1-2 Wochen pro Iteration | 1-5 Tage |
Participantsdifferent | 2-8 | 3-20 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Effort Heatmap, Risk Signals, Discussion Targets | Prioritized Assumption List, Test Plan, Results Report | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LeanStartupValidationMVP | EstimationEffortRisk | ExperimentsValidationDiscoveryAssumptions | ValidationExperimentsDemandDiscovery |