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| Criterion |  Operations Causal Factor Analysis |  Operations Barrier Analysis |  Knowledge Modeling Competency Questions |
|---|---|---|---|
Purposedifferent | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. | Competency Questions translate a domain model into concrete questions that it must be able to answer. The method keeps the model's scope clean and prevents pretty but useless structures. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-6 h | 2-4 h | 2-4 h |
Participantsdifferent | 3-10 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | OntologyKnowledge graphScopeRequirementsSemantic |
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