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| Criterion |  Agile Sprint Retrospective |  Architecture arc42 |  Architecture Architecture Communication Canvas |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 1-2 Tage | 60-120 min | 15-45 min |
Participantsdifferent | Scrum Team | 1-4 | 2-8 | 1-3 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Improvement actions, Team agreements | Architecture Document, Context View, Runtime View, Deployment View | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | ADR File, Decision Log, Rationale |
Tagsno overlap | RetrospectiveImprovementLearning | ArchitectureDocumentationCommunication | ArchitectureCommunicationStakeholdersCanvas | ArchitectureRationaleDocumentationGovernance |