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| Criterion |  Operations A3 Problem Solving |  Knowledge Modeling Ontology Design Patterns |  Operations Barrier Analysis |  Operations Family Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 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 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 45-90 min | 1-3 h pro Pattern | 2-4 h | 2-4 h |
Participantsdifferent | 2-5 | 1-6 | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Selected Patterns, Adapted Schema Fragments, Pattern Documentation | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Family Tree Diagram, Pattern Notes, Systemic Measures |
Tagsno overlap | LeanProblem solvingCoachingOperations | OntologyPatternsReuseSemanticModeling | Root causeSafetyIncident | Root causePatternsIncidentSystemic |