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Selected:ARID (Active Reviews for Intermediate Designs)TOWS Matrix Fault Isolation Value Chain Analysis

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Business Strategy TOWS Matrix	Engineering Fault Isolation	Business Strategy Value Chain Analysis
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 TOWS Matrix connects internal strengths and weaknesses with external opportunities and threats into action-oriented strategies. It goes a step further than a pure stocktaking.	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.	Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list.
Complexitydifferent	Medium	Medium	Medium	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-2 h	30-180 min	Half day
Participantsdifferent	Designers, developers as users, and facilitation	3-10	1-6	3-8
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	TOWS Matrix, Strategic Options, Priority Actions	Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area	Value Chain Map, Lever List
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	StrategyAnalysisOptions	TroubleshootingDiagnosisEngineering	StrategyBusiness modelDiagnosisAnalysis

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