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| Criterion |  Operations Learning Review |  Agile NoEstimates |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | 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. | 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 | Medium | Medium | Low | Medium |
Timedifferent | 1-3 h | laufend | 45–75 min | 30-90 min |
Participantsdifferent | 3-10 | 2-12 | Team members involved | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | Throughput Data, Flow Forecast, Slicing Rules | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningRetrospectiveIncidentOperations | EstimationForecastingFlow | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability |