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Selected:ARID (Active Reviews for Intermediate Designs)Architecture Inception Canvas A3 Problem Solving 5 Whys

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Architecture Architecture Inception Canvas	Operations A3 Problem Solving	Operations 5 Whys
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.	The Architecture Inception Canvas bundles the first architecture questions into a compact decision picture. It fits when an initiative is still in motion but still needs clear guardrails.	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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description.
Complexitydifferent	Medium	Low	Medium	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-2 h	45-90 min	15-30 min
Participantsdifferent	Designers, developers as users, and facilitation	3-8	2-5	2-6
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	Inception Canvas, Risks, Goal List, Open Questions	A3 Report, Action Plan, Root Cause Analysis	Root cause notes, Countermeasures
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	AlignmentArchitectureCanvas	LeanProblem solvingCoachingOperations	Root causeIncidentLeanProblem solving

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