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Selected:Visual Management ARID (Active Reviews for Intermediate Designs)A3 Problem Solving Kaizen Event

Criterion	Operations Visual Management	Architecture ARID (Active Reviews for Intermediate Designs)	Operations A3 Problem Solving	Operations Kaizen Event
Purposedifferent	With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work.	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.	For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together.	For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments.
Complexitydifferent	Low	Medium	Medium	Medium
Timedifferent	Ongoing	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	0.5-5 Tage
Participantsdifferent	1-20	Designers, developers as users, and facilitation	2-5	4-10
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Visual Board, Status Indicators, Exception Cues	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	A3 Report, Action Plan, Root Cause Analysis	Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update
Tagsno overlap	SignalsOperationsVisual management	ArchitectureEngineeringFeedbackValidationTasks	LeanProblem solvingCoachingOperations	LeanContinuous improvementOperations

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