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| Criterion |  Operations Fault Tree Analysis |  UX Research Empathy Mapping |  Operations Fishbone Diagram |
|---|---|---|---|
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. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | 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. |
Complexitydifferent | High | Low | Low |
Timedifferent | 2-6 h | 30–60 min | 30-60 min |
Participantsdifferent | 3-8 | 4-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Empathy Map, Assumptions List, Research Gaps | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | RiskRoot causeSafety | SynthesisQualitativeWorkshop | Root causeQualityOperations |
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