Patent ID: 8015044

Claim:
A system for calculating respective promise dates for two or more demands produced for an item based on a supply structure for fulfilling the demands, the system comprising: one or more data storage means for storing data information related to distribution and supply chain operation; and a processor operatively coupled to the one or more data storage means; the one or more data storage means further comprising statements and instructions for implementation by the processor to calculate the respective promise dates for the two or more demands by: (a) associating an assigned priority value to each of the demands produced for the item; (b) for each supply in the supply structure, determining a plan date, based on an existing and planned supply in the supply structure, from a highest level to a lowest level in the supply structure until plan dates have been determined for all supplies in the supply structure for the two or more demands; (c) determining available dates for the item based on an availability of each supply in the supply structure, wherein the available dates are determined based on the following steps: (c1) sorting a supply list by supply availability; (c2) sorting a demand list by plan date; (c3) determining when a last available supply on the sorted supply list fulfills a last planned demand on the sorted demand list by its plan date; (c4) for the last planned demand fulfilled by its plan date, allocating the last available supply to the last planned demand based on its plan date; (c5) for the last planned demand not fulfilled by its plan date, allocating the last available supply to an unfulfilled demand having a lowest assigned priority value; (c6) recording the allocation in steps (c4) and (c5) in an allocation record; (c7) repeating steps (c3) to (c6) successively for each supply on the sorted supply list until lowest level available dates are determined for the lowest level of the supply structure; and (c8) propagating the lowest level available dates to a next level in the supply structure, repeating steps (c1) to (c7) to provide next level available dates; wherein steps (c1) through (c8) are executed for each supply in the supply structure successively from the lowest level to the highest level in the supply structure; and (d) generating the respective promise dates for the demands based on the available dates determined in step (c), whereby the respective promise dates are committed to the demands produced for the item.