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| Criterion |  Decision Making Decision Tree |  Operations Barrier Analysis |  Operations Root Cause Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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 risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 30-90 min | 2-4 h | 1-4 h | 2-8 h |
Participantsdifferent | 1-6 | 2-6 | 3-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Decision Tree, Option Map, Assumption List | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | DecisionTreeOptions | Root causeSafetyIncident | Root causeProblem solvingQualityIncident | Problem solvingRoot causeDecisionOperations |