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| Criterion |  DevOps Blameless Postmortem |  Systems Thinking CATWOE Analysis |  Agile 4Ls Retrospective |  Facilitation Expectation Mapping |
|---|---|---|---|---|
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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | When roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 45-90 min | 45–75 min | 45-90 min |
Participantsdifferent | 3-12 | 3-8 | Team members involved | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | 4Ls Board, Learning Themes, Improvement Actions | Expectation Map, Alignment Notes, Agreements |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingFramingStakeholders | RetrospectiveLearningReflectionTeam | AlignmentStakeholdersTeam |