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| Criterion |  Operations After-Action Review |  Operations A3 Problem Solving |  Growth A/B Testing |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Medium | High | Low |
Timedifferent | 20-45 min | 45-90 min | 1-4 Wochen | 25-40 min |
Participantsdifferent | 3-12 | 2-5 | 1-6 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | A3 Report, Action Plan, Root Cause Analysis | Experiment results, Decision log, Learning summary | Learning Card with evidence and next action |
Tagsno overlap | LearningOperationsImprovement | LeanProblem solvingCoachingOperations | ExperimentsGrowthAnalyticsValidation | ExperimentsValidationDiscoveryLearning |