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Selected:ARID (Active Reviews for Intermediate Designs)4Ls Retrospective After-Action Review Sailboat Retrospective

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Agile 4Ls Retrospective	Operations After-Action Review	Agile Sailboat 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.	After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement.	When a team wants to read momentum, brakes, and risks together, it offers an easily understandable picture of the situation. It makes drive, obstacles, and headwind visible in the same picture.
Complexitydifferent	Medium	Low	Low	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45–75 min	20-45 min	45-90 min
Participantsdifferent	Designers, developers as users, and facilitation	Team members involved	3-12	4-12
Formatdifferent	Workshop + async	Workshop	Workshop + async	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	Lessons learned, Action items, Event summary	Sailboat Board, Risks, Improvement Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	RetrospectiveLearningReflectionTeam	LearningOperationsImprovement	RetrospectiveTeamImprovement

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