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| Criterion |  Architecture arc42 |  Agile Starfish Retrospective |  Architecture Views and Beyond |  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. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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 | 1-3 Tage | 45–75 min |
Participantsdifferent | 1-4 | 4-12 | 1-4 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Starfish Board, Practice Changes, Experiments | Architecture Views, Cross-view Notes, Rationale | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ArchitectureDocumentationCommunication | RetrospectiveImprovementExperimentsTeam | DocumentationStakeholdersArchitecture | RetrospectiveLearningReflectionTeam |