Order Promising Rolling Planning with ATP/CTP Reallocation Mechanism

  • Chen, Juin-Han (Department of Industrial Engineering and Management, Cheng Shiu University) ;
  • Lin, James T. (Department of Industrial Engineering and Engineering Management, National Tsing-Hua University) ;
  • Wu, Yi-Sheng (Department of Industrial Engineering and Management, Yung-Ta Institute of Technology and Commerce)
  • Published : 2008.06.30

Abstract

Available-to-promise (ATP) exhibiting availability of manufacturing resources can be used to support customer order promising. Recently, one advanced function called Capable-to-promise (CTP) is provided by several modern APS (advanced planning system) that checks available capacity for placing new production orders or increasing already scheduled production orders. At the customer enquiry stage while considering the order delivery date and quantity to quote, both ATP and CTP are allocated to support order promising. In particular, current trends of mass customization and multi-side production chain derive several new constraints that should be considered when ATP/CTP allocation planning for order promising - such as customer's preference plants or material vendors, material compatibility, etc. Moreover, ATP/CTP allocation planning would be executed over a rolling time horizon. To utilize capacity and material manufacturing resource flexibly and fulfill more customer orders, ATP/CTP rolling planning should possess resource reallocation mechanism under the constraints of order quantities and delivery dates for all previous order promising. Therefore, to enhance order promising with reliability and flexibility to reallocate manufacturing resource, the ATP/CTP reallocation planning mechanism is needed in order to reallocate material and capacity resource for fulfilling all previous promised and new customer orders beneficially with considering new derived material and capacity constraints.

Keywords

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