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| Criterion |  Operations After-Action Review |  DevOps Game Day |  Agile 4Ls Retrospective |
|---|---|---|---|
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. | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Low | High | Low |
Timedifferent | 20-45 min | Halber Tag | 45–75 min |
Participantsdifferent | 3-12 | 5-20 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Simulation Notes, Gaps List, Updated Runbooks | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | LearningOperationsImprovement | ResilienceOperationsIncident | RetrospectiveLearningReflectionTeam |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
