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| Criterion |  Engineering Kanban |  Operations ALPEN Method |  Operations Root Cause Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | Ongoing | 10-20 min daily | 1-4 h | 30-60 min |
Participantsdifferent | 2-12 | 1 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Kanban board, WIP policies, Flow metrics | Daily Plan, Time Estimates, Review Notes | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | FlowVisual managementDelivery | PlanningTime managementProductivityOperations | Root causeProblem solvingQualityIncident | Root causeQualityOperations |