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| Criterion |  Agile Sprint Retrospective |  Knowledge Modeling Feynman Technique |  DevOps Game Day |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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 | High | Medium |
Timedifferent | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 20-60 min | Halber Tag | 30-90 min |
Participantsdifferent | Scrum Team | 1 | 5-20 | 3-12 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Improvement actions, Team agreements | Plain-language Explanation, Knowledge Gaps, Study Notes | Simulation Notes, Gaps List, Updated Runbooks | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | RetrospectiveImprovementLearning | LearningKnowledgeUnderstanding | ResilienceOperationsIncident | Site Reliability EngineeringIncidentLearningReliability |