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| Criterion |  DevOps Game Day |  Architecture arc42 |  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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | 1-2 Tage | 30-90 min | As needed |
Participantsdifferent | 5-20 | 1-4 | 3-12 | 4-15 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Architecture Document, Context View, Runtime View, Deployment View | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | ResilienceOperationsIncident | ArchitectureDocumentationCommunication | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability |