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| Criterion |  Architecture Architecture Decision Record |  Agile Specification by Example |  Architecture arc42 |  Agile Example Mapping |
|---|---|---|---|---|
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. | 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. | When a story carries business rules and exceptions, it brings clarity before implementation. It makes examples, open questions, and boundaries visible enough that the logic becomes jointly sound. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 60-90 min pro Feature | 1-2 Tage | 30-60 min |
Participantsdifferent | 1-3 | 3-6 | 1-4 | 3-7 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Example Table, Acceptance Tests | Architecture Document, Context View, Runtime View, Deployment View | Example Map, Acceptance Criteria, Open Questions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | AgileRequirementsExamplesBehavior-Driven Development | ArchitectureDocumentationCommunication | Behavior-Driven DevelopmentRequirementsExamplesRefinement |