Job Management System - LogicJMS

The inventory in the process is related to the throughput rate and throughput time by the following equation:

W.I.P. Inventory = Throughput Rate x Flow Time

This relation is known as Little's Law, named after John D.C. Little who proved it mathematically in 1961. Since the throughput rate is equal to 1 / cycle time, Little's Law can be written as:

Flow Time = W.I.P. Inventory x Cycle Time