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| Criterion |  Operations Barrier Analysis |  Systems Thinking System Dynamics Simulation |  Systems Thinking Iceberg Model |  Operations Family Tree 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. | 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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 2-4 h | Mehrere Tage bis Wochen | 30-60 min | 2-4 h |
Participantsdifferent | 2-6 | 1-5 Modellierende, Stakeholder asynchron | 2-10 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Simulation Model, Scenario Reports | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | Root causeSafetyIncident | Systems thinkingDynamicsSimulationAnalysis | Systems thinkingRoot causePatterns | Root causePatternsIncidentSystemic |