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| Criterion |  Operations A3 Problem Solving |  Product Discovery Learning Card |  Growth A/B Testing |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 45-90 min | 25-40 min | 1-4 Wochen | 45-75 min |
Participantsdifferent | 2-5 | 1-5 | 1-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Learning Card with evidence and next action | Experiment results, Decision log, Learning summary | Test Matrix, Test Plan |
Tagsno overlap | LeanProblem solvingCoachingOperations | ExperimentsValidationDiscoveryLearning | ExperimentsGrowthAnalyticsValidation | ExperimentsValidationDiscoveryOptions |