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| Criterion | ![]() Systems Thinking CATWOE Analysis | ![]() Operations Barrier Analysis | ![]() Operations Failure Mode and Effects Analysis | ![]() Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | 45-90 min | 2-4 h | 2-6 h | Mehrere Tage bis Wochen |
Participantsdifferent | 3-8 | 2-6 | 3-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | FMEA Table, Risk Priority, Mitigation Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | Systems thinkingFramingStakeholders | Root causeSafetyIncident | RiskQualityOperationsRoot cause | Root causeSafetySystemicIncident |



