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| Criterion |  Systems Thinking Stock and Flow Diagram |  Operations MORT Analysis |  Operations Barrier Analysis |  Systems Thinking System Dynamics Simulation |
|---|---|---|---|---|
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. | System Dynamics Simulation makes assumptions about time, delay, and feedback testable through experiments. It draws relationships, patterns, and feedback loops. The result is captured as a simulation model and scenario reports. |
Complexitydifferent | High | High | Medium | High |
Timedifferent | 2-6 h | Mehrere Tage bis Wochen | 2-4 h | Mehrere Tage bis Wochen |
Participantsdifferent | 1-6 | 2-6 | 2-6 | 1-5 Modellierende, Stakeholder asynchron |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | 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 | Simulation Model, Scenario Reports |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | Root causeSafetySystemicIncident | Root causeSafetyIncident | Systems thinkingDynamicsSimulationAnalysis |