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| Criterion |  Operations Fishbone Diagram |  Decision Making Decision Tree |  Operations Root Cause 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. | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30-60 min | 30-90 min | 1-3 h |
Participantsdifferent | 2-8 | 1-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Decision Tree, Option Map, Assumption List | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | Root causeQualityOperations | DecisionTreeOptions | Root causeTreeIncidentQuality |
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