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Selected:ARID (Active Reviews for Intermediate Designs)Assumption Mapping 8D Problem Solving Failure Mode and Effects Analysis

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Assumption Mapping	Operations 8D Problem Solving	Operations Failure Mode and Effects 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.	When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.	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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability.
Complexitydifferent	Medium	Medium	High	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	45-60 min	1-6 Wochen	2-6 h
Participantsdifferent	Designers, developers as users, and facilitation	2-8	4-10	3-10
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Assumption map, Test backlog, Risk ranking	8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	AssumptionsRiskExperimentsValidation	QualityProblem solvingRoot cause	RiskQualityOperationsRoot cause

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