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| Criterion |  Operations Barrier Analysis |  Operations Root Cause Analysis |  Decision Making Pareto Analysis |  Operations Root Cause Tree 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. | 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. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2-4 h | 1-4 h | 30-60 min | 1-3 h |
Participantsdifferent | 2-6 | 3-8 | 1-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Pareto Chart, Top Causes, Focus List | Cause Tree, Evidence Notes, Countermeasures |
Tags1 shared | Root causeSafetyIncident | Root causeProblem solvingQualityIncident | PrioritizationQualityFocusRoot cause | Root causeTreeIncidentQuality |