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| Criterion |  DevOps Game Day |  Operations Ivy Lee Method |  DevOps Blameless Postmortem |  DevOps Incident Command |
|---|---|---|---|---|
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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | Halber Tag | 5-10 min daily | 30-90 min | As needed |
Participantsdifferent | 5-20 | 1 | 3-12 | 4-15 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Daily Priority List, Completion Notes | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | ResilienceOperationsIncident | PrioritizationProductivityExecution | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability |