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| Criterion |  DevOps ChatOps |  Operations Runbook |  DevOps Blameless Postmortem |  DevOps Game Day |
|---|---|---|---|---|
Purposedifferent | 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 recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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 | Medium | Low | Medium | High |
Timedifferent | Ongoing | 20-60 min | 30-90 min | Halber Tag |
Participantsdifferent | 2-20 | 1-4 | 3-12 | 5-20 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Chat Transcript, Action Log, Automations | Runbook, Checklist, Escalation Path | Postmortem Doc, Action Items, Timeline | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | CollaborationEngineeringIncident | OperationsReliabilityDocumentation | Site Reliability EngineeringIncidentLearningReliability | ResilienceOperationsIncident |