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| Criterion |  Operations After-Action Review |  DevOps ChatOps |  DevOps Incident Timeline Analysis |  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. | 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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | 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 | Medium | High |
Timedifferent | 20-45 min | Ongoing | 60-180 min | Halber Tag |
Participantsdifferent | 3-12 | 2-20 | 3-10 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Chat Transcript, Action Log, Automations | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | LearningOperationsImprovement | CollaborationEngineeringIncident | IncidentTimelineSite Reliability Engineering | ResilienceOperationsIncident |