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Selected:ARID (Active Reviews for Intermediate Designs)Architecture Decision Record Change Analysis Fault Isolation

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Architecture Architecture Decision Record	Operations Change Analysis	Engineering Fault Isolation
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.	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.	For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise.	In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected.
Complexitydifferent	Medium	Low	Medium	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	15-45 min	45-120 min	30-180 min
Participantsdifferent	Designers, developers as users, and facilitation	1-3	2-6	1-6
Formatdifferent	Workshop + async	Async	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	ADR File, Decision Log, Rationale	Change Matrix, Cause Hypotheses, Validation Questions, Action List	Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ArchitectureRationaleDocumentationGovernance	ChangeRoot causeTroubleshootingComparison	TroubleshootingDiagnosisEngineering

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