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| Criterion |  Operations After-Action Review |  Product Discovery Learning Card |  Operations Learning Review |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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 | Low | Low | Medium | Medium |
Timedifferent | 20-45 min | 25-40 min | 1-3 h | 1-5 Tage |
Participantsdifferent | 3-12 | 1-5 | 3-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Lessons learned, Action items, Event summary | Learning Card with evidence and next action | Learning Review Notes, System Factors, Improvement Actions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LearningOperationsImprovement | ExperimentsValidationDiscoveryLearning | LearningRetrospectiveIncidentOperations | ValidationExperimentsDemandDiscovery |