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| Criterion |  Architecture arc42 |  Agile Starfish Retrospective |  Architecture Architecture Communication Canvas |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Low | Medium | Low |
Timedifferent | 1-2 Tage | 45-90 min | 60-120 min | 45–75 min |
Participantsdifferent | 1-4 | 4-12 | 2-8 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Starfish Board, Practice Changes, Experiments | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ArchitectureDocumentationCommunication | RetrospectiveImprovementExperimentsTeam | ArchitectureCommunicationStakeholdersCanvas | RetrospectiveLearningReflectionTeam |