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Selected:Architecture Decision Record Fault Isolation arc42 ARID (Active Reviews for Intermediate Designs)

Criterion	Architecture Architecture Decision Record	Engineering Fault Isolation	Architecture arc42	Architecture ARID (Active Reviews for Intermediate Designs)
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.	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.	arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes.	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.
Complexitydifferent	Low	Medium	Low	Medium
Timedifferent	15-45 min	30-180 min	1-2 Tage	2–4 h review as a planning range; preparation and evaluation additional
Participantsdifferent	1-3	1-6	1-4	Designers, developers as users, and facilitation
Formatdifferent	Async	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	ADR File, Decision Log, Rationale	Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area	Architecture Document, Context View, Runtime View, Deployment View	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions
Tagsno overlap	ArchitectureRationaleDocumentationGovernance	TroubleshootingDiagnosisEngineering	ArchitectureDocumentationCommunication	ArchitectureEngineeringFeedbackValidationTasks

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