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| Criterion |  Operations Barrier Analysis |  Decision Making Decision Tree |  Operations Root Cause Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 2-4 h | 30-90 min | 1-4 h |
Participantsdifferent | 2-6 | 1-6 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Decision Tree, Option Map, Assumption List | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Root causeSafetyIncident | DecisionTreeOptions | Root causeProblem solvingQualityIncident |
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