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Selected:ARID (Active Reviews for Intermediate Designs)Game Day Blameless Postmortem After-Action Review

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	DevOps Game Day	DevOps Blameless Postmortem	Operations After-Action Review
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.	After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures.	After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement.
Complexitydifferent	Medium	High	Medium	Low
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	Halber Tag	30-90 min	20-45 min
Participantsdifferent	Designers, developers as users, and facilitation	5-20	3-12	3-12
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	Postmortem Doc, Action Items, Timeline	Lessons learned, Action items, Event summary
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	ResilienceOperationsIncident	Site Reliability EngineeringIncidentLearningReliability	LearningOperationsImprovement

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