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

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Gemba Walk	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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions.	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	30-120 min	30-60 min	45–75 min
Participantsdifferent	Designers, developers as users, and facilitation	2-6	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	Observation Notes, Improvement Ideas	Start Stop Continue Board, Improvement Actions	4Ls Board, Learning Themes, Improvement Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	LeanObservationProcessOperations	RetrospectiveImprovementTeamReflection	RetrospectiveLearningReflectionTeam

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