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Selected:ABC Analysis ARID (Active Reviews for Intermediate Designs)Root Cause Analysis Failure Mode and Effects Analysis

Criterion	Operations ABC Analysis	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Root Cause Analysis	Operations Failure Mode and Effects Analysis
Purposedifferent	With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention.	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 a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another.	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	Low	Medium	Medium	High
Timedifferent	30-60 min	2–4 h review as a planning range; preparation and evaluation additional	1-4 h	2-6 h
Participantsdifferent	1-5	Designers, developers as users, and facilitation	3-8	3-10
Formatdifferent	Async	Workshop + async	Workshop + async	Workshop
Outputdifferent	ABC Classification, Focus Rules, Control List	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan	FMEA Table, Risk Priority, Mitigation Actions
Tagsno overlap	PrioritizationOperationsPortfolio	ArchitectureEngineeringFeedbackValidationTasks	Root causeProblem solvingQualityIncident	RiskQualityOperationsRoot cause

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