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Selected:Architecture Decision Record ARID (Active Reviews for Intermediate Designs)8D Problem Solving 5 Whys

Criterion	Architecture Architecture Decision Record	Architecture ARID (Active Reviews for Intermediate Designs)	Operations 8D Problem Solving	Operations 5 Whys
Purposedifferent	An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable.	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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly.	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	Low	Medium	High	Low
Timedifferent	15-45 min	2–4 h review as a planning range; preparation and evaluation additional	1-6 Wochen	15-30 min
Participantsdifferent	1-3	Designers, developers as users, and facilitation	4-10	2-6
Formatdifferent	Async	Workshop + async	Workshop + async	Workshop
Outputdifferent	ADR File, Decision Log, Rationale	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan	Root cause notes, Countermeasures
Tagsno overlap	ArchitectureRationaleDocumentationGovernance	ArchitectureEngineeringFeedbackValidationTasks	QualityProblem solvingRoot cause	Root causeIncidentLeanProblem solving

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