MRP system with viewable master production schedule

摘要

An MRP system that operates on a single data set containing records for all item demands and supplies. The file may be opened under a demand alias and a supply alias to expedite MRP regeneration. A second item master extension file includes data for each item which is subject to MRP, which further contributes to improved MRP regeneration time. Item low level codes for an item are recalculated in real time whenever a bill of material referencing the item is created or modified. Therefore, low level codes need not be calculated during MRP regeneration.