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Selected:ARID (Active Reviews for Intermediate Designs)Game Day Barrier Analysis Causal Factor Analysis

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	DevOps Game Day	Operations Barrier Analysis	Operations Causal Factor 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.	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.	For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions.	For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events.
Complexitydifferent	Medium	High	Medium	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	Halber Tag	2-4 h	2-6 h
Participantsdifferent	Designers, developers as users, and facilitation	5-20	2-6	3-10
Formatdifferent	Workshop + async	Workshop	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Simulation Notes, Gaps List, Updated Runbooks	Barrier Inventory, Failure Analysis per Barrier, Action Backlog	Event Timeline, Causal Factor Chart, Cause List, Corrective Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ResilienceOperationsIncident	Root causeSafetyIncident	CausalityIncidentRoot causeTimeline

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