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| Criterion |  DevOps Incident Command |  Operations After-Action Review |  Operations Root Cause Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | As needed | 20-45 min | 1-4 h | 30-90 min |
Participantsdifferent | 4-15 | 3-12 | 3-8 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | Lessons learned, Action items, Event summary | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | IncidentOperationsReliability | LearningOperationsImprovement | Root causeProblem solvingQualityIncident | Site Reliability EngineeringIncidentLearningReliability |