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| Criterion |  DevOps Blameless Postmortem |  Architecture Request for Comments |  Operations Learning Review |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 1-3 h | 15-45 min |
Participantsdifferent | 3-12 | 3-20 Reviewer | 3-10 | 1-3 |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Learning Review Notes, System Factors, Improvement Actions | ADR File, Decision Log, Rationale |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureDecisionAsyncGovernance | LearningRetrospectiveIncidentOperations | ArchitectureRationaleDocumentationGovernance |