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| Criterion |  DevOps Game Day |  Systems Thinking Soft Systems Methodology |  Operations Learning Review |  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. | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | 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. | 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 | High | Medium | Medium |
Timedifferent | Halber Tag | 0.5-3 Tage | 1-3 h | 30-90 min |
Participantsdifferent | 5-20 | 5-15 | 3-10 | 3-12 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Simulation Notes, Gaps List, Updated Runbooks | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Learning Review Notes, System Factors, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ResilienceOperationsIncident | Soft systemsComplexitySensemakingSystems thinking | LearningRetrospectiveIncidentOperations | Site Reliability EngineeringIncidentLearningReliability |