7,277,862

Push planning for unserviceable parts to facilitate repair planning in a repair network

Issued:  October 2, 2007

Assignee:  i2 Technologies US, Inc. (Dallas, TX)

Inventors:  Adgaonkar; Amol B. (Arlington, TX), Rammohan; Deepak (Irving, TX), Som; Pradip (Corinth, TX), Burkhardt; Thomas (Dallas, TX)

Abstract:  In one embodiment, a method for repair planning for a location in a repair network includes modeling: (1) an uninspected buffer for parts received but not yet inspected at the location; (2) a first buffer for parts inspected at the location and repairable at the location; (3) a second buffer for parts inspected at the location and not repairable at the location; (4) a third buffer for parts inspected at the location and not repairable at any location in the repair network; and (5) a fourth buffer for parts inspected at the location and serviceable without repair. The parts in the uninspected buffer are assigned to the first, second, third, and fourth buffers at corresponding rates according to an inspection operation. One or more operation plans are generated to push parts out of the uninspected buffer to the first, second, third, and fourth buffers according to the corresponding rates, a part pushed out being available within the first, second, third, or fourth buffer only after a predetermined disposition time has elapsed. An operation plan is generated to push parts out of the second buffer to one or more upstream locations, a part pushed out being available at an upstream location only after a predetermined move lead time has elapsed. For each part pushed out of the uninspected buffer to the first or second buffer, the earliest time at which repair can begin for the part is estimated, this earliest repair time determining the earliest time at which, after the part has been repaired to make it serviceable, the part can be available to satisfy a demand at the location.