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| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Feynman Technique |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. | 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 | High | Low | Medium |
Timedifferent | 2-6 h | 20-60 min | 30-90 min |
Participantsdifferent | 3-8 | 1 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Plain-language Explanation, Knowledge Gaps, Study Notes | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RiskRoot causeSafety | LearningKnowledgeUnderstanding | Site Reliability EngineeringIncidentLearningReliability |
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