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Selected:8D Problem Solving ARID (Active Reviews for Intermediate Designs)Kepner-Tregoe Failure Mode and Effects Analysis

Criterion	Operations 8D Problem Solving	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Kepner-Tregoe	Operations Failure Mode and Effects Analysis
Purposedifferent	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.	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.	For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations.	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	High	Medium	High	High
Timedifferent	1-6 Wochen	2–4 h review as a planning range; preparation and evaluation additional	2-8 h	2-6 h
Participantsdifferent	4-10	Designers, developers as users, and facilitation	2-8	3-10
Formatdifferent	Workshop + async	Workshop + async	Workshop + async	Workshop
Outputdifferent	8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Problem Analysis, Decision Analysis, Risk Plan	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	QualityProblem solvingRoot cause	ArchitectureEngineeringFeedbackValidationTasks	Problem solvingRoot causeDecisionOperations	RiskQualityOperationsRoot cause

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