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Selected:Architecture Decision RecordAfter-Action ReviewSailboat RetrospectiveStarfish Retrospective
| Criterion |  Architecture Architecture Decision Record |  Operations After-Action 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 missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 15-45 min | 20-45 min | 45-90 min | 45-90 min |
Participantsdifferent | 1-3 | 3-12 | 4-12 | 4-12 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Lessons learned, Action items, Event summary | Sailboat Board, Risks, Improvement Actions | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | LearningOperationsImprovement | RetrospectiveTeamImprovement | RetrospectiveImprovementExperimentsTeam |