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| Criterion |  Engineering Kanban |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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. | 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 event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | Ongoing | 30-90 min | 2-6 h | 2-6 h |
Participantsdifferent | 2-12 | 3-12 | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Kanban board, WIP policies, Flow metrics | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | FlowVisual managementDelivery | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality |