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| Criterion |  DevOps ChatOps |  DevOps Incident Command |  Operations A3 Problem Solving |  DevOps Blameless Postmortem |
|---|---|---|---|---|
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. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | Ongoing | As needed | 45-90 min | 30-90 min |
Participantsdifferent | 2-20 | 4-15 | 2-5 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Incident Log, Action Tracker, Stakeholder Updates | A3 Report, Action Plan, Root Cause Analysis | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | CollaborationEngineeringIncident | IncidentOperationsReliability | LeanProblem solvingCoachingOperations | Site Reliability EngineeringIncidentLearningReliability |