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| Criterion |  Operations Barrier Analysis |  Operations 5 Whys |  Knowledge Modeling NeOn Methodology |
|---|---|---|---|
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. | 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. | The NeOn Methodology structures ontology work as a controlled process with reuse, scenarios, and reviews. It is useful when ontologies should not emerge ad hoc but modularly and reusably. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 2-4 h | 15-30 min | Mehrere Wochen bis Monate |
Participantsdifferent | 2-6 | 2-6 | 2-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Root cause notes, Countermeasures | Ontology Requirements Specification, Reuse Plan, Ontology Modules, Evaluation Report |
Tagsno overlap | Root causeSafetyIncident | Root causeIncidentLeanProblem solving | OntologyMethodologyReuseSemanticEngineering |
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