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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking CATWOE Analysis |  Systems Thinking Rich Picture |  DevOps Incident Command |
|---|---|---|---|---|
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. | 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. | 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 | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 45-90 min | 30-90 min | As needed |
Participantsdifferent | 3-12 | 3-8 | 2-10 | 4-15 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Rich Picture, Problem Framing Notes | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingFramingStakeholders | Systems thinkingSoft systemsFramingVisualization | IncidentOperationsReliability |