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| Criterion |  Architecture Architecture Decision Record |  Architecture Request for Comments |  Agile Starfish Retrospective |
|---|---|---|---|
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. | 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. | 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 | Low | Medium | Low |
Timedifferent | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung | 45-90 min |
Participantsdifferent | 1-3 | 3-20 Reviewer | 4-12 |
Formatdifferent | Async | Async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance | RetrospectiveImprovementExperimentsTeam |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
