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| Criterion |  Architecture Architecture Decision Record |  Architecture Architecture Communication Canvas |  Agile 4Ls 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-45 min | 60-120 min | 45–75 min |
Participantsdifferent | 1-3 | 2-8 | Team members involved |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureCommunicationStakeholdersCanvas | RetrospectiveLearningReflectionTeam |
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