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| Criterion |  Operations Fault Tree Analysis |  Systems Thinking CATWOE Analysis |  Systems Thinking Iceberg Model |
|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. | 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 | High | Medium | Low |
Timedifferent | 2-6 h | 45-90 min | 30-60 min |
Participantsdifferent | 3-8 | 3-8 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | RiskRoot causeSafety | Systems thinkingFramingStakeholders | Systems thinkingRoot causePatterns |
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