MRP system with viewable master production schedule
First Claim
Patent Images
1. An improved MRP system comprising:
- at least one item demand data set;
at least one item supply data set;
means for generating a Master Production Schedule ("MPS"), the means for generating being operable to perform the step of;
creating an MPS data set comprising data from the item demand and item supply data sets; and
wherein each such MPS data set record includes data indicating;
an item identifier;
a quantity;
a transaction time period; and
a "pass-through flag" which is set for those item supply records for which there is no independent demand in the MPS file for the same item;
such that the means for generating ensures that the MPS data set includes item supply information for items for which there is no independent demand;
means for viewing data in the records in the MPS data set for which the pass-through flag has not been set prior to performing materials requirement planning ("MRP");
means for performing time phased MRP netting on the MPS data set to thereby generate MRP action messages; and
such that means for generating ensures that it is unnecessary for such MRP netting means to access data from the item supply data set.
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Abstract
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.
107 Citations
8 Claims
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1. An improved MRP system comprising:
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at least one item demand data set; at least one item supply data set; means for generating a Master Production Schedule ("MPS"), the means for generating being operable to perform the step of; creating an MPS data set comprising data from the item demand and item supply data sets; and wherein each such MPS data set record includes data indicating; an item identifier; a quantity; a transaction time period; and a "pass-through flag" which is set for those item supply records for which there is no independent demand in the MPS file for the same item; such that the means for generating ensures that the MPS data set includes item supply information for items for which there is no independent demand; means for viewing data in the records in the MPS data set for which the pass-through flag has not been set prior to performing materials requirement planning ("MRP"); means for performing time phased MRP netting on the MPS data set to thereby generate MRP action messages; and such that means for generating ensures that it is unnecessary for such MRP netting means to access data from the item supply data set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification