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| Criterion |  Decision Making Decision Tree |  Operations Root Cause Tree Analysis |  Decision Making DACI |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 1-3 h | 30-60 min | 1-4 h |
Participantsdifferent | 1-6 | 2-8 | 2-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Decision Tree, Option Map, Assumption List | Cause Tree, Evidence Notes, Countermeasures | DACI Matrix, Decision Owner, Decision Log | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | DecisionTreeOptions | Root causeTreeIncidentQuality | DecisionRolesGovernanceAlignment | Root causeProblem solvingQualityIncident |