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| Criterion |  Operations Learning Review |  Operations Gemba Walk |  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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 | 1-3 h | 30-120 min | 30-90 min |
Participantsdifferent | 3-10 | 2-6 | 3-12 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | Observation Notes, Improvement Ideas | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | LearningRetrospectiveIncidentOperations | LeanObservationProcessOperations | Site Reliability EngineeringIncidentLearningReliability |
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