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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking CATWOE Analysis |  Knowledge Modeling Feynman Technique |  Systems Thinking Rich Picture |
|---|---|---|---|---|
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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 45-90 min | 20-60 min | 30-90 min |
Participantsdifferent | 3-12 | 3-8 | 1 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Plain-language Explanation, Knowledge Gaps, Study Notes | Rich Picture, Problem Framing Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingFramingStakeholders | LearningKnowledgeUnderstanding | Systems thinkingSoft systemsFramingVisualization |