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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Soft Systems Methodology |  Operations After-Action Review |
|---|---|---|---|
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. | 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 missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 30-90 min | 0.5-3 Tage | 20-45 min |
Participantsdifferent | 3-12 | 5-15 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Lessons learned, Action items, Event summary |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Soft systemsComplexitySensemakingSystems thinking | LearningOperationsImprovement |
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