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| Criterion |  Innovation Lean Startup |  Product Discovery Riskiest Assumption Test |  Operations Eat the Frog |  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 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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 | Medium | Low | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | 1-2 Wochen pro Iteration | 15-90 min daily | 1-5 Tage |
Participantsdifferent | 2-8 | 2-6 | 1 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Prioritized Assumption List, Test Plan, Results Report | Priority Task, Completion Note, Daily Focus | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LeanStartupValidationMVP | ExperimentsValidationDiscoveryAssumptions | PrioritizationProductivityFocusExecution | ValidationExperimentsDemandDiscovery |