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| Criterion |  Operations 5 Whys |  Operations Family Tree Analysis |  Knowledge Modeling NeOn Methodology |  Operations MORT Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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. | 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 | Low | Medium | High | High |
Timedifferent | 15-30 min | 2-4 h | Mehrere Wochen bis Monate | Mehrere Tage bis Wochen |
Participantsdifferent | 2-6 | 2-6 | 2-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Family Tree Diagram, Pattern Notes, Systemic Measures | Ontology Requirements Specification, Reuse Plan, Ontology Modules, Evaluation Report | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | Root causeIncidentLeanProblem solving | Root causePatternsIncidentSystemic | OntologyMethodologyReuseSemanticEngineering | Root causeSafetySystemicIncident |