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| Criterion |  DevOps Blameless Postmortem |  Operations After-Action Review |  Operations ABC Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 20-45 min | 30-60 min |
Participantsdifferent | 3-12 | 3-12 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary | ABC Classification, Focus Rules, Control List |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement | PrioritizationOperationsPortfolio |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
