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| Criterion |  Operations Process Mapping |  Operations Barrier Analysis |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h | 2-4 h | 1-3 h |
Participantsdifferent | 3-10 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ProcessOperationsImprovement | Root causeSafetyIncident | Root causeTreeIncidentQuality |
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