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| Criterion |  Architecture Architecture Decision Record |  Architecture Request for Comments |  DevOps Blameless Postmortem |
|---|---|---|---|
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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung | 30-90 min |
Participantsdifferent | 1-3 | 3-20 Reviewer | 3-12 |
Formatdifferent | Async | Async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance | Site Reliability EngineeringIncidentLearningReliability |
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