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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking Soft Systems Methodology |  Systems Thinking Rich Picture |  Systems Thinking CATWOE Analysis |
|---|---|---|---|---|
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. | A Rich Picture brings an unclear situation onto a shared drawing. It captures actors, tensions, information flows, and blind spots before the team jumps to solutions too early. | 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. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 30-90 min | 0.5-3 Tage | 30-90 min | 45-90 min |
Participantsdifferent | 3-12 | 5-15 | 2-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Rich Picture, Problem Framing Notes | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Soft systemsComplexitySensemakingSystems thinking | Systems thinkingSoft systemsFramingVisualization | Systems thinkingFramingStakeholders |