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Operations and Capacity

1 tool in the Finance and Business area.

Capacity and Throughput

Capacity analysis of a production line or service process: takt time from the demand and the net available time, the effective capacity of every step from its process time, setup per batch, parallel machines, availability and yield, the bottleneck and the system throughput, the start rate and utilization of every step, the flow time of each step by Kingman's VUT equation chained through the departure-variability linkage with the exact M/M/c value beside it, work in process by Little's law, the critical WIP and the best-case, worst-case and practical-worst-case throughput and cycle-time curves of the line, overall equipment effectiveness with the six-loss attribution and TEEP, line balancing by ranked positional weight, the largest-candidate rule and an exact branch-and-bound minimum with a precedence diagram, the setup-run batch trade-off and the newsvendor capacity cushion for an uncertain demand. The default is an illustrative five-step line at 400 units per 8-hour shift with a nine-task balancing problem, checked against an independent discrete-event simulation; the EPA Lean and Environment Toolkit value stream is reproduced in the test script.

1 worked example reproduced, listed on the tool page.

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