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| Criterion |  Operations MORT Analysis |  Operations Barrier Analysis |  Systems Thinking Iceberg Model |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | Mehrere Tage bis Wochen | 2-4 h | 30-60 min | 20-45 min |
Participantsdifferent | 2-6 | 2-6 | 2-10 | 1-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | Root causeSafetySystemicIncident | Root causeSafetyIncident | Systems thinkingRoot causePatterns | Systems thinkingPatternsDynamics |