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| Criterion |  Architecture Architecture Decision Record |  Agile Specification by Example |  Architecture Request for Comments |
|---|---|---|---|
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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 60-90 min pro Feature | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 1-3 | 3-6 | 3-20 Reviewer |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Example Table, Acceptance Tests | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | AgileRequirementsExamplesBehavior-Driven Development | ArchitectureDecisionAsyncGovernance |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
