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| Criterion |  Architecture Architecture Decision Record |  DevOps Blameless Postmortem |  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. | 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. | 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 | 30-90 min | 20-60 min |
Participantsdifferent | 1-3 | 3-12 | 1-4 |
Formatdifferent | Async | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Postmortem Doc, Action Items, Timeline | Runbook, Checklist, Escalation Path |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Site Reliability EngineeringIncidentLearningReliability | OperationsReliabilityDocumentation |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
