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| Criterion |  Knowledge Modeling Feynman Technique |  Operations 8D Problem Solving |  Operations Root Cause Tree Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | Medium |
Timedifferent | 20-60 min | 1-6 Wochen | 1-3 h | 30-90 min |
Participantsdifferent | 1 | 4-10 | 2-8 | 3-12 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Plain-language Explanation, Knowledge Gaps, Study Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Cause Tree, Evidence Notes, Countermeasures | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningKnowledgeUnderstanding | QualityProblem solvingRoot cause | Root causeTreeIncidentQuality | Site Reliability EngineeringIncidentLearningReliability |