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| Criterion |  Systems Thinking Stock and Flow Diagram |  Operations Barrier Analysis |  Operations Family Tree 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 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 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 | High | Medium | Medium |
Timedifferent | 2-6 h | 2-4 h | 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 | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | Root causeSafetyIncident | Root causePatternsIncidentSystemic |
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