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Heuristic for integrated purchasing and production planning


  • Supakanya Chinprateep
  • Rein Boondiskulchok


The planning of purchasing and production lot-size for multi-item multi-period multi-workstation capacitated production (MLCLSP-M) is discussed. Since the model is a NP-hard problem, this research proposes a heuristic method (A-LS), which decomposes the model into two sub-problems and iteratively solves them. The two sub-problems consisting of an assignment sub-problem with given lot size and a lot sizing sub-problem with given assignment. Solution method was developed, tested and compared to illustrate the solution quality and computational time. Mathematical models for both sub-problems were solved with AMPL/CPLEX 8.0.0 solver. The computational results indicate that the proposed heuristic (A-LS) gives satisfactory solution with faster solving time comparing with the original mathematical model. [Submitted 15 July 2008; Revised 09 October 2009, 09 December 2009; Accepted 23 December 2009]

Suggested Citation

  • Supakanya Chinprateep & Rein Boondiskulchok, 2011. "Heuristic for integrated purchasing and production planning," European Journal of Industrial Engineering, Inderscience Enterprises Ltd, vol. 5(1), pages 64-80.
  • Handle: RePEc:ids:eujine:v:5:y:2011:i:1:p:64-80

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