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| Criterion |  DevOps Blameless Postmortem |  Knowledge Modeling IBIS |  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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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 | Medium | Low |
Timedifferent | 30-90 min | 1-3 h | 20-60 min |
Participantsdifferent | 3-12 | 2-8 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Issue Map, Positions, Argument Notes | Plain-language Explanation, Knowledge Gaps, Study Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RationaleKnowledgeDecision | LearningKnowledgeUnderstanding |
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