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| Criterion |  Architecture Architecture Decision Record |  Knowledge Modeling Competency Questions |  Agile Specification by Example |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | 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 | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | 2-4 h | 60-90 min pro Feature | 1-2 Tage |
Participantsdifferent | 1-3 | 2-8 | 3-6 | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Example Table, Acceptance Tests | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | OntologyKnowledge graphScopeRequirementsSemantic | AgileRequirementsExamplesBehavior-Driven Development | ArchitectureDocumentationCommunication |