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| Criterion |  Knowledge Modeling Competency Questions |  Architecture C4 Model |  Operations Fishbone Diagram |  Architecture arc42 |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 2-4 h | 1-4 h | 30-60 min | 1-2 Tage |
Participantsdifferent | 2-8 | 1-5 | 2-8 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Context Diagram, Container Diagram, Component Diagram | Fishbone Diagram, Cause Categories, Investigation Backlog | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | OntologyKnowledge graphScopeRequirementsSemantic | ArchitectureCommunicationVisualization | Root causeQualityOperations | ArchitectureDocumentationCommunication |