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| Criterion |  Operations Barrier Analysis |  Knowledge Modeling Ontology Design Patterns |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2-4 h | 1-3 h pro Pattern | 15-30 min | 1-4 h |
Participantsdifferent | 2-6 | 1-6 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Selected Patterns, Adapted Schema Fragments, Pattern Documentation | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Root causeSafetyIncident | OntologyPatternsReuseSemanticModeling | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |