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Selected:ARID (Active Reviews for Intermediate Designs)Sailboat Retrospective A/B Testing 4Ls Retrospective

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Agile Sailboat Retrospective	Growth A/B Testing	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 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.	When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects.	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	High	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	1-4 Wochen	45–75 min
Participantsdifferent	Designers, developers as users, and facilitation	4-12	1-6	Team members involved
Formatdifferent	Workshop + async	Workshop	Async	Workshop
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Sailboat Board, Risks, Improvement Actions	Experiment results, Decision log, Learning summary	4Ls Board, Learning Themes, Improvement Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	RetrospectiveTeamImprovement	ExperimentsGrowthAnalyticsValidation	RetrospectiveLearningReflectionTeam

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