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| Criterion | ![]() Operations Change Analysis | ![]() Systems Thinking Behavior Over Time Graph | ![]() Operations Barrier Analysis | ![]() Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 45-120 min | 20-45 min | 2-4 h | Mehrere Tage bis Wochen |
Participantsdifferent | 2-6 | 1-10 | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Behavior Over Time Graph, Trend Hypotheses, Key Events | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | Systems thinkingPatternsDynamics | Root causeSafetyIncident | Root causeSafetySystemicIncident |



