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| Criterion |  Agile 4Ls Retrospective |  Knowledge Modeling Feynman Technique |  DevOps Incident Command |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | 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. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 45–75 min | 20-60 min | As needed | 30-90 min |
Participantsdifferent | Team members involved | 1 | 4-15 | 3-12 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Plain-language Explanation, Knowledge Gaps, Study Notes | Incident Log, Action Tracker, Stakeholder Updates | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RetrospectiveLearningReflectionTeam | LearningKnowledgeUnderstanding | IncidentOperationsReliability | Site Reliability EngineeringIncidentLearningReliability |