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| Criterion |  Operations Barrier Analysis |  Operations Root Cause Analysis |  Operations Change 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 2-4 h | 1-4 h | 45-120 min |
Participantsdifferent | 2-6 | 3-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tags1 shared | Root causeSafetyIncident | Root causeProblem solvingQualityIncident | ChangeRoot causeTroubleshootingComparison |
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