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| Criterion |  Architecture Architecture Decision Record |  Operations Learning Review |  Agile Sailboat Retrospective |  Agile Starfish 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 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. | 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. | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 1-3 h | 45-90 min | 45-90 min |
Participantsdifferent | 1-3 | 3-10 | 4-12 | 4-12 |
Formatdifferent | Async | Workshop | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Learning Review Notes, System Factors, Improvement Actions | Sailboat Board, Risks, Improvement Actions | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | LearningRetrospectiveIncidentOperations | RetrospectiveTeamImprovement | RetrospectiveImprovementExperimentsTeam |