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| Criterion |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |  Agile Affinity Estimation |
|---|---|---|---|
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. | 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 many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 45–75 min | 30-90 min | 30-90 min |
Participantsdifferent | Team members involved | 3-12 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline | Affinity Size Map, Grouped Estimates, Unclear Items |
Tagsno overlap | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability | EstimationBacklogRelative sizing |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
