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| Criterion |  DevOps Blameless Postmortem |  Operations After-Action Review |  Knowledge Modeling Feynman Technique |
|---|---|---|---|
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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 20-45 min | 20-60 min |
Participantsdifferent | 3-12 | 3-12 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Lessons learned, Action items, Event summary | Plain-language Explanation, Knowledge Gaps, Study Notes |
Tags1 shared | Site Reliability EngineeringIncidentLearningReliability | LearningOperationsImprovement | LearningKnowledgeUnderstanding |
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