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| Criterion |  UX Research Diary Study |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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 | Low | Medium |
Timedifferent | 1-4 Wochen | 45–75 min | 30-90 min |
Participantsdifferent | 5-20 | Team members involved | 3-12 |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | UX researchTrackingBehavior | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability |
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