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Selected:ARID (Active Reviews for Intermediate Designs)4Ls RetrospectiveSprint RetrospectiveStarfish Retrospective
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Agile 4Ls Retrospective |  Agile Sprint Retrospective |  Agile Starfish Retrospective |
|---|---|---|---|---|
Purposedifferent | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 45–75 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45-90 min |
Participantsdifferent | Designers, developers as users, and facilitation | Team members involved | Scrum Team | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | 4Ls Board, Learning Themes, Improvement Actions | Improvement actions, Team agreements | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | RetrospectiveLearningReflectionTeam | RetrospectiveImprovementLearning | RetrospectiveImprovementExperimentsTeam |