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| Criterion |  Operations After-Action Review |  Operations 8D Problem Solving |  DevOps Blameless Postmortem |
|---|---|---|---|
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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | Low | High | Medium |
Timedifferent | 20-45 min | 1-6 Wochen | 30-90 min |
Participantsdifferent | 3-12 | 4-10 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningOperationsImprovement | QualityProblem solvingRoot cause | Site Reliability EngineeringIncidentLearningReliability |
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