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

Criterion	Knowledge Modeling IBIS	Architecture ARID (Active Reviews for Intermediate Designs)	Engineering Fault Isolation	Architecture Architecture Decision Record
Purposedifferent	IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus.	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.	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.	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.
Complexitydifferent	Medium	Medium	Medium	Low
Timedifferent	1-3 h	2–4 h review as a planning range; preparation and evaluation additional	30-180 min	15-45 min
Participantsdifferent	2-8	Designers, developers as users, and facilitation	1-6	1-3
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Async
Outputdifferent	Issue Map, Positions, Argument Notes	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area	ADR File, Decision Log, Rationale
Tagsno overlap	RationaleKnowledgeDecision	ArchitectureEngineeringFeedbackValidationTasks	TroubleshootingDiagnosisEngineering	ArchitectureRationaleDocumentationGovernance

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