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

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	DevOps Incident Timeline Analysis	DevOps Game Day	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.	For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable.	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 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	Medium	High	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	60-180 min	Halber Tag	2-6 h
Participantsdifferent	Designers, developers as users, and facilitation	3-10	5-20	3-10
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions	Simulation Notes, Gaps List, Updated Runbooks	Event Timeline, Causal Factor Chart, Cause List, Corrective Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	IncidentTimelineSite Reliability Engineering	ResilienceOperationsIncident	CausalityIncidentRoot causeTimeline

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