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

Criterion	DevOps Game Day	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Root Cause Analysis	Operations Failure Mode and Effects Analysis
Purposedifferent	In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic.	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	High	Medium	Medium	High
Timedifferent	Halber Tag	2–4 h review as a planning range; preparation and evaluation additional	1-4 h	2-6 h
Participantsdifferent	5-20	Designers, developers as users, and facilitation	3-8	3-10
Formatdifferent	Workshop	Workshop + async	Workshop + async	Workshop
Outputdifferent	Simulation Notes, Gaps List, Updated Runbooks	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	ResilienceOperationsIncident	ArchitectureEngineeringFeedbackValidationTasks	Root causeProblem solvingQualityIncident	RiskQualityOperationsRoot cause

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