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| Criterion |  Operations Barrier Analysis |  Operations Causal Factor Analysis |  Operations A3 Problem Solving |
|---|---|---|---|
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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 2-4 h | 2-6 h | 45-90 min |
Participantsdifferent | 2-6 | 3-10 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Root causeSafetyIncident | CausalityIncidentRoot causeTimeline | LeanProblem solvingCoachingOperations |
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