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| Criterion |  Operations After-Action Review |  DevOps ChatOps |  DevOps Game Day |  DevOps Incident Command |
|---|---|---|---|---|
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. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 20-45 min | Ongoing | Halber Tag | As needed |
Participantsdifferent | 3-12 | 2-20 | 5-20 | 4-15 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Chat Transcript, Action Log, Automations | Simulation Notes, Gaps List, Updated Runbooks | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | LearningOperationsImprovement | CollaborationEngineeringIncident | ResilienceOperationsIncident | IncidentOperationsReliability |