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| Criterion |  Operations Learning Review |  Agile Specification by Example |  DevOps Blameless Postmortem |  Agile 4Ls Retrospective |
|---|---|---|---|---|
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 business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-3 h | 60-90 min pro Feature | 30-90 min | 45–75 min |
Participantsdifferent | 3-10 | 3-6 | 3-12 | Team members involved |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | Example Table, Acceptance Tests | Postmortem Doc, Action Items, Timeline | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | LearningRetrospectiveIncidentOperations | AgileRequirementsExamplesBehavior-Driven Development | Site Reliability EngineeringIncidentLearningReliability | RetrospectiveLearningReflectionTeam |