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| Criterion |  Systems Thinking Stock and Flow Diagram |  Operations MORT Analysis |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics. | 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. | 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. |
Complexitydifferent | High | High | Medium |
Timedifferent | 2-6 h | Mehrere Tage bis Wochen | 2-4 h |
Participantsdifferent | 1-6 | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | Root causeSafetySystemicIncident | Root causeSafetyIncident |
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