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| Criterion |  Delivery Value Stream Mapping |  DevOps Blameless Postmortem |  DevOps Incident Timeline Analysis |  Engineering Kanban |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | When work sits in too many parallel streams, throughput suffers and no one sees the bottlenecks. Kanban makes the flow of work visible and limits overload so a system becomes calmer and more predictable. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-3 h | 30-90 min | 60-180 min | Ongoing |
Participantsdifferent | 4-10 | 3-12 | 3-10 | 2-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Current-state map, Future-state map, Bottleneck list | Postmortem Doc, Action Items, Timeline | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Kanban board, WIP policies, Flow metrics |
Tagsno overlap | LeanFlowWasteDelivery | Site Reliability EngineeringIncidentLearningReliability | IncidentTimelineSite Reliability Engineering | FlowVisual managementDelivery |