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| Criterion |  DevOps Game Day |  Operations Barrier Analysis |  DevOps Blameless Postmortem |
|---|---|---|---|
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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | Halber Tag | 2-4 h | 30-90 min |
Participantsdifferent | 5-20 | 2-6 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Postmortem Doc, Action Items, Timeline |
Tags1 shared | ResilienceOperationsIncident | Root causeSafetyIncident | Site Reliability EngineeringIncidentLearningReliability |
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