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| Criterion |  DevOps Game Day |  DevOps Blameless Postmortem |  DevOps ChatOps |  Operations Learning Review |
|---|---|---|---|---|
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. | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | Halber Tag | 30-90 min | Ongoing | 1-3 h |
Participantsdifferent | 5-20 | 3-12 | 2-20 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Postmortem Doc, Action Items, Timeline | Chat Transcript, Action Log, Automations | Learning Review Notes, System Factors, Improvement Actions |
Tags1 shared | ResilienceOperationsIncident | Site Reliability EngineeringIncidentLearningReliability | CollaborationEngineeringIncident | LearningRetrospectiveIncidentOperations |