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| Criterion |  Operations After-Action Review |  DevOps ChatOps |  Agile Sprint Retrospective |  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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | 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. | 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 | Medium | Low | Low |
Timedifferent | 20-45 min | Ongoing | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45–75 min |
Participantsdifferent | 3-12 | 2-20 | Scrum Team | Team members involved |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Chat Transcript, Action Log, Automations | Improvement actions, Team agreements | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | LearningOperationsImprovement | CollaborationEngineeringIncident | RetrospectiveImprovementLearning | RetrospectiveLearningReflectionTeam |