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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking CATWOE Analysis |  Operations Learning Review |  DevOps Game Day |
|---|---|---|---|---|
Purposedifferent | 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. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 30-90 min | 45-90 min | 1-3 h | Halber Tag |
Participantsdifferent | 3-12 | 3-8 | 3-10 | 5-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Learning Review Notes, System Factors, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingFramingStakeholders | LearningRetrospectiveIncidentOperations | ResilienceOperationsIncident |