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| Criterion |  Operations After-Action Review |  Agile Sprint Retrospective |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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. | 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. | 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 | Low | Low | Low | Medium |
Timedifferent | 20-45 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 25-40 min | 45-75 min |
Participantsdifferent | 3-12 | Scrum Team | 1-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Improvement actions, Team agreements | Learning Card with evidence and next action | Test Matrix, Test Plan |
Tagsno overlap | LearningOperationsImprovement | RetrospectiveImprovementLearning | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions |