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Selected:Eisenhower Matrix ARID (Active Reviews for Intermediate Designs)A3 Problem Solving Gemba Walk

Criterion	Decision Making Eisenhower Matrix	Architecture ARID (Active Reviews for Intermediate Designs)	Operations A3 Problem Solving	Operations Gemba Walk
Purposedifferent	It separates true priorities from noise so it becomes clear what should be done now, scheduled, delegated, or dropped.	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.	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.
Complexitydifferent	Low	Medium	Medium	Low
Timedifferent	15-30 min	2–4 h review as a planning range; preparation and evaluation additional	45-90 min	30-120 min
Participantsdifferent	1-6	Designers, developers as users, and facilitation	2-5	2-6
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Eisenhower Matrix, Action List, Delegation Notes	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	A3 Report, Action Plan, Root Cause Analysis	Observation Notes, Improvement Ideas
Tagsno overlap	PrioritizationFocusTasks	ArchitectureEngineeringFeedbackValidationTasks	LeanProblem solvingCoachingOperations	LeanObservationProcessOperations

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