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| Criterion |  Operations ABC Analysis |  Operations Root Cause Analysis |  Operations Barrier Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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 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 has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30-60 min | 1-4 h | 2-4 h | 30-60 min |
Participantsdifferent | 1-5 | 3-8 | 2-6 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | ABC Classification, Focus Rules, Control List | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | PrioritizationOperationsPortfolio | Root causeProblem solvingQualityIncident | Root causeSafetyIncident | Root causeQualityOperations |