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| Criterion |  Operations Fishbone Diagram |  Knowledge Modeling Concept Mapping |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. | 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. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 30-60 min | 1-2 h | 2-6 h |
Participantsdifferent | 2-8 | 1-8 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Concept Map, Relationship Labels, Knowledge Gaps | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | Root causeQualityOperations | KnowledgeConceptsMappingSensemaking | RiskRoot causeSafety |
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