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| Criterion |  Operations A3 Problem Solving |  Product Discovery MVP Test Matrix |  Growth A/B Testing |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 | High | Medium |
Timedifferent | 45-90 min | 45-75 min | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 2-5 | 2-8 | 1-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Async | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Test Matrix, Test Plan | Experiment results, Decision log, Learning summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryOptions | ExperimentsGrowthAnalyticsValidation | ValidationExperimentsDemandDiscovery |