An MVA approximation for CONWIP priority modeling Conference Paper uri icon


  • Constant work-in-process control (CONWIP) by product type is a strategy for improving the cycle time in multiple product factories. For realistic sized systems, a mean-value analysis (MVA) approximation methodology yields quick and accurate results. A processing step modeling paradigm is developed for the MVA methodology and applied to multiple-product reentrant-flow sequences. A variety of sequencing rules have been proposed in an attempt to improve the mean cycle times while maintaining the product throughput rates. A general priority scheme is developed for the MVA modeling approach which allows many of the sequencing rules to be implemented and evaluated under multiple product CONWIP control. Four priority schemes (FIFO, shortest expected processing time, shortest remaining processing time, and Wein's work-balance) are illustrated for a data set from the literature. The best priority scheme, work-balance, obtained a 41% mean processing time improvement over FIFO under push control and 37% under CONWIP control. 2012 IEEE.

name of conference

  • 2012 Winter Simulation Conference - (WSC 2012)

published proceedings

  • Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC)

author list (cited authors)

  • Curry, G. L., & Lee, M.

citation count

  • 0

complete list of authors

  • Curry, Guy L||Lee, Moonsu

publication date

  • December 2012