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Selected:ARID (Active Reviews for Intermediate Designs)Starfish Retrospective Start Stop Continue 4Ls Retrospective

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Agile Starfish Retrospective	Agile Start Stop Continue	Agile 4Ls 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 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.	When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood.	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	Medium	Low	Low	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	30-60 min	45–75 min
Participantsdifferent	Designers, developers as users, and facilitation	4-12	3-12	Team members involved
Formatdifferent	Workshop + async	Workshop	Workshop	Workshop
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Starfish Board, Practice Changes, Experiments	Start Stop Continue Board, Improvement Actions	4Ls Board, Learning Themes, Improvement Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	RetrospectiveImprovementExperimentsTeam	RetrospectiveImprovementTeamReflection	RetrospectiveLearningReflectionTeam

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