Supply chain planning: the role of simulation in advanced planning and scheduling

  • Authors:
  • Kenneth Musselman;Jean O'Reilly;Steven Duket

  • Affiliations:
  • Frontstep, Inc., West Lafayette, IN;Frontstep, Inc., West Lafayette, IN;Frontstep, Inc., West Lafayette, IN

  • Venue:
  • Proceedings of the 34th conference on Winter simulation: exploring new frontiers
  • Year:
  • 2002

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Abstract

The tasks of planning and scheduling in manufacturing have evolved from simplistic Material Requirements Planning systems to today's sophisticated Advanced Planning and Scheduling systems. While planning is concerned with the long-range determination of what needs to be manufactured, typically over a relatively long time period, scheduling is the task of deciding how that manufacturing is to be accomplished, typically over a relatively short time period. Simulation is well suited to the scheduling task since it can handle as much detail as is necessary to capture the subtleties of the manufacturing process. It is desirable for a simulation-based scheduling function to be integrated with an Enterprise Resource Planning system, which maintains the system data suitable for driving a simulation of the current system load and thereby producing a feasible schedule. This paper describes such an integrated system and the role of simulation within it.