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| Criterion |  DevOps Blameless Postmortem |  Delivery Value Stream Mapping |
|---|---|---|
Purposedifferent | 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 delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. |
Complexitysame | Medium | Medium |
Timedifferent | 30-90 min | 1-3 h |
Participantsdifferent | 3-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Current-state map, Future-state map, Bottleneck list |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | LeanFlowWasteDelivery |
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