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| Criterion |  Operations Barrier Analysis |  Operations MORT Analysis |  Systems Thinking Behavior Over Time Graph |  Systems Thinking Iceberg Model |
|---|---|---|---|---|
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. | 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. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 2-4 h | Mehrere Tage bis Wochen | 20-45 min | 30-60 min |
Participantsdifferent | 2-6 | 2-6 | 1-10 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Behavior Over Time Graph, Trend Hypotheses, Key Events | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | Root causeSafetyIncident | Root causeSafetySystemicIncident | Systems thinkingPatternsDynamics | Systems thinkingRoot causePatterns |