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| Criterion |  Architecture Request for Comments |  Architecture Architecture Decision Record |  Agile Start Stop Continue |  Agile Starfish Retrospective |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min | 30-60 min | 45-90 min |
Participantsdifferent | 3-20 Reviewer | 1-3 | 3-12 | 4-12 |
Formatdifferent | Async | Async | Workshop | Workshop |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | ADR File, Decision Log, Rationale | Start Stop Continue Board, Improvement Actions | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | ArchitectureRationaleDocumentationGovernance | RetrospectiveImprovementTeamReflection | RetrospectiveImprovementExperimentsTeam |