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| Criterion |  Operations After-Action Review |  Operations Learning Review |  Agile Sprint Retrospective |  DevOps Game Day |
|---|---|---|---|---|
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. | 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 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 20-45 min | 1-3 h | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | Halber Tag |
Participantsdifferent | 3-12 | 3-10 | Scrum Team | 5-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Learning Review Notes, System Factors, Improvement Actions | Improvement actions, Team agreements | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | LearningOperationsImprovement | LearningRetrospectiveIncidentOperations | RetrospectiveImprovementLearning | ResilienceOperationsIncident |