1) In traditional management, a production schedule or master production schedule that generates material and labor requirements that are as evenly spread over time as possible. Finished goods inventories buffer the production system against seasonal demand. See: level production method. 2) In JIT, a level schedule (usually constructed monthly) in which each day’s customer demand is scheduled to be built on the day it will be shipped. A level schedule is the output of the load-leveling process. Syn: JIT master schedule,level production schedule. See: load leveling.