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| Criterion |  Operations Causal Factor Analysis |  Knowledge Modeling Competency Questions |  Operations Barrier Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
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. | 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. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 2-6 h | 2-4 h | 2-4 h | 2-6 h |
Participantsdifferent | 3-10 | 2-8 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | CausalityIncidentRoot causeTimeline | OntologyKnowledge graphScopeRequirementsSemantic | Root causeSafetyIncident | Systems thinkingRoot causeConstraintsCausality |