SimMan-A simulation model for workforce capacity planning

  • Authors:
  • Huei-Chuen Huang;Loo-Hay Lee;Haiqing Song;Brian Thomas Eck

  • Affiliations:
  • Department of Industrial & Systems Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore;Department of Industrial & Systems Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore;Department of Logistics Engineering & Management, Lingnan College, Sun Yat-Sen University, Guangzhou 510275, China;IBM Integrated Supply Chain, IBM Corporation, 2455 South Road, Bldg 012/E01, Poughkeepsie, NY 12601, USA

  • Venue:
  • Computers and Operations Research
  • Year:
  • 2009

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Abstract

Motivated by the difficulty in predicting the actual performance of workforce capacity planning solutions obtained from mathematical models, we develop a simulator, SimMan, to serve as a test bed for evaluating the effectiveness and robustness of different planning options and assignment rules. To facilitate the ease of use, the simulator is developed in C++ language with a modular structure so that different users or planners can customize the modules according to their specifications. We further develop a mathematical model for the workforce capacity planning problem, where the uncertainty of the demand is handled by the safety stock concepts. We also suggest a number of practical planning alternatives and assignment rules based on information from IBM. These rules are implemented as modules in SimMan and tested numerically to provide managerial insights.