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| Criterion |  Agile Sprint Retrospective |  Product Discovery Learning Card |  Operations Learning Review |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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 | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 25-40 min | 1-3 h | 1-5 Tage |
Participantsdifferent | Scrum Team | 1-5 | 3-10 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop | Async |
Outputdifferent | Improvement actions, Team agreements | Learning Card with evidence and next action | Learning Review Notes, System Factors, Improvement Actions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | RetrospectiveImprovementLearning | ExperimentsValidationDiscoveryLearning | LearningRetrospectiveIncidentOperations | ValidationExperimentsDemandDiscovery |