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| Criterion |  Knowledge Modeling Competency Questions |  Product Discovery Context Canvas |  Operations Fault Tree Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | When an environment of users, systems, and constraints is hard to grasp, it puts the context compactly on the table. It creates a clear reading of influence, boundary, and dependency. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 2-4 h | 45-90 min | 2-6 h | 2-4 h |
Participantsdifferent | 2-8 | 3-10 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Context canvas, Open questions, Shared context notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | OntologyKnowledge graphScopeRequirementsSemantic | ContextFramingRequirementsCanvas | RiskRoot causeSafety | Root causeSafetyIncident |