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| Criterion |  DevOps Game Day |  Architecture ARID (Active Reviews for Intermediate Designs) |  DevOps Blameless Postmortem |  DevOps ChatOps |
|---|---|---|---|---|
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. | 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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | Halber Tag | 2–4 h review as a planning range; preparation and evaluation additional | 30-90 min | Ongoing |
Participantsdifferent | 5-20 | Designers, developers as users, and facilitation | 3-12 | 2-20 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Postmortem Doc, Action Items, Timeline | Chat Transcript, Action Log, Automations |
Tagsno overlap | ResilienceOperationsIncident | ArchitectureEngineeringFeedbackValidationTasks | Site Reliability EngineeringIncidentLearningReliability | CollaborationEngineeringIncident |