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| Criterion |  Operations Barrier Analysis |  Systems Thinking Future Reality Tree |  Operations MORT 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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitydifferent | Medium | High | High |
Timedifferent | 2-4 h | 2-4 h | Mehrere Tage bis Wochen |
Participantsdifferent | 2-6 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | Root causeSafetyIncident | Theory of ConstraintsSystems thinkingChange | Root causeSafetySystemicIncident |
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