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| Criterion |  Architecture Architecture Decision Record |  DevOps Blameless Postmortem |  Agile Start Stop Continue |  Agile Sailboat 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. | 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. | When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | When a team wants to read momentum, brakes, and risks together, it offers an easily understandable picture of the situation. It makes drive, obstacles, and headwind visible in the same picture. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 30-90 min | 30-60 min | 45-90 min |
Participantsdifferent | 1-3 | 3-12 | 3-12 | 4-12 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Postmortem Doc, Action Items, Timeline | Start Stop Continue Board, Improvement Actions | Sailboat Board, Risks, Improvement Actions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveImprovementTeamReflection | RetrospectiveTeamImprovement |