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| Criterion |  Architecture Architecture Decision Record |  Agile Starfish Retrospective |  Architecture Architecture Communication Canvas |
|---|---|---|---|
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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-45 min | 45-90 min | 60-120 min |
Participantsdifferent | 1-3 | 4-12 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Starfish Board, Practice Changes, Experiments | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RetrospectiveImprovementExperimentsTeam | ArchitectureCommunicationStakeholdersCanvas |
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