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| Criterion |  Architecture Architecture Decision Record |  Architecture Request for Comments |  Operations Runbook |
|---|---|---|---|
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. | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung | 20-60 min |
Participantsdifferent | 1-3 | 3-20 Reviewer | 1-4 |
Formatsame | Async | Async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Runbook, Checklist, Escalation Path |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance | OperationsReliabilityDocumentation |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
