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| Criterion |  Operations Root Cause Tree Analysis |  Operations 5 Whys |  Decision Making Decision Tree |
|---|---|---|---|
Purposedifferent | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 15-30 min | 30-90 min |
Participantsdifferent | 2-8 | 2-6 | 1-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Root cause notes, Countermeasures | Decision Tree, Option Map, Assumption List |
Tagsno overlap | Root causeTreeIncidentQuality | Root causeIncidentLeanProblem solving | DecisionTreeOptions |
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