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| Criterion |  Operations Fault Tree Analysis |  Operations Barrier Analysis |  Knowledge Modeling Ontology Design Patterns |
|---|---|---|---|
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. | 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. | Ontology Design Patterns provide reusable building blocks for recurring modeling problems. The method brings structure to the search for clean concepts, relationships, and roles. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-6 h | 2-4 h | 1-3 h pro Pattern |
Participantsdifferent | 3-8 | 2-6 | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Selected Patterns, Adapted Schema Fragments, Pattern Documentation |
Tagsno overlap | RiskRoot causeSafety | Root causeSafetyIncident | OntologyPatternsReuseSemanticModeling |
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