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| Criterion |  Decision Making Three-Point Estimation |  Operations Barrier Analysis |  Systems Thinking Current Reality Tree |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 | Medium | High | High |
Timedifferent | 10-30 min je Item | 2-4 h | 2-6 h | Mehrere Tage bis Wochen |
Participantsdifferent | 1-8 | 2-6 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Current Reality Tree, Core Problems, Intervention Ideas | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | EstimationUncertaintyForecasting | Root causeSafetyIncident | Systems thinkingRoot causeConstraintsCausality | Root causeSafetySystemicIncident |