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| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Feynman Technique |  Operations Failure Mode and Effects Analysis |  Operations After-Action Review |
|---|---|---|---|---|
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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-6 h | 20-60 min | 2-6 h | 20-45 min |
Participantsdifferent | 3-8 | 1 | 3-10 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Plain-language Explanation, Knowledge Gaps, Study Notes | FMEA Table, Risk Priority, Mitigation Actions | Lessons learned, Action items, Event summary |
Tagsno overlap | RiskRoot causeSafety | LearningKnowledgeUnderstanding | RiskQualityOperationsRoot cause | LearningOperationsImprovement |