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| Criterion |  Decision Making Decision Matrix |  Operations Root Cause Tree Analysis |  Operations Kepner-Tregoe |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 | High | Medium |
Timedifferent | 45-90 min | 1-3 h | 2-8 h | 1-4 h |
Participantsdifferent | 2-8 | 2-8 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Decision Matrix, Scoring Rationale, Selected Option | Cause Tree, Evidence Notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | DecisionCriteriaScoringTradeoffs | Root causeTreeIncidentQuality | Problem solvingRoot causeDecisionOperations | Root causeProblem solvingQualityIncident |