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| Criterion |  Operations After-Action Review |  DevOps Game Day |  DevOps ChatOps |  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. | 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. | 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. | 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 | High | Medium | Medium |
Timedifferent | 20-45 min | Halber Tag | Ongoing | As needed |
Participantsdifferent | 3-12 | 5-20 | 2-20 | 4-15 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Simulation Notes, Gaps List, Updated Runbooks | Chat Transcript, Action Log, Automations | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | LearningOperationsImprovement | ResilienceOperationsIncident | CollaborationEngineeringIncident | IncidentOperationsReliability |