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Selected:Architecture Decision RecordStarfish RetrospectiveSprint RetrospectiveSailboat Retrospective
| Criterion |  Architecture Architecture Decision Record |  Agile Starfish Retrospective |  Agile Sprint Retrospective |  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. | 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. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 15-45 min | 45-90 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45-90 min |
Participantsdifferent | 1-3 | 4-12 | Scrum Team | 4-12 |
Formatdifferent | Async | Workshop | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Starfish Board, Practice Changes, Experiments | Improvement actions, Team agreements | Sailboat Board, Risks, Improvement Actions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RetrospectiveImprovementExperimentsTeam | RetrospectiveImprovementLearning | RetrospectiveTeamImprovement |