Production and Inventory Management with Substitutions

1. Front Matter

   Pages i-xx

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2. Introduction

   • J. Christian Lang

   Pages 1-8

3. Production and Operations Management: Models and Algorithms

   • J. Christian Lang

   Pages 9-79

4. Graphical Modeling of Substitutions and Flexible Bills-of-Materials

   • J. Christian Lang

   Pages 81-109

5. Literature Review

   • J. Christian Lang

   Pages 111-124

6. Efficient Reformulations for Uncapacitated and Capacitated Lot-Sizing with Substitutions and Initial Inventories

   • J. Christian Lang

   Pages 125-150

7. MIP-Based Heuristics for Capacitated Lot-Sizing with Sequence-Dependent Setups and Substitutions

   • J. Christian Lang

   Pages 151-183

8. Multi-Level Lot-Sizing Models with Flexible Bills-of-Materials

   • J. Christian Lang

   Pages 185-204

9. Blood Bank Inventory Control with Transshipments and Substitutions

   • J. Christian Lang

   Pages 205-226

10. Conclusions and Future Research

    • J. Christian Lang

    Pages 227-231

11. Back Matter

    Pages 233-258

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Quantitativeapproachesforsolvingproductionplanningandinventorymanagement problems in industry have gained growing importance in the past years. Due to the increasinguse of AdvancedPlanningSystems, a widespreadpracticalapplicationof the sophisticated optimization models and algorithms developed by the Production Management and Operations Research community now seem within reach. The possibility that productscan be replaced by certain substitute productsexists in various application areas of production planning and inventory management. Substitutions can be useful for a number of reasons, among others to circ- vent production and supply bottlenecks and disruptions, increase the service level, reduce setup costs and times, and lower inventories and thereby decrease ca- tal lockup. Considering the current trend in industry towards shorter product life cycles and greater product variety, the importance of substitutions appears likely to grow. Closely related to substitutions are ?exible bills-of-materials and recipes in multi-level production systems. However, so far, the aspect of substitutions has not attracted much attention in academic literature. Existing lot-sizing models matching complex requirements of industrial optimization problems (e.g., constrained capacities, sequence-dependent setups, multiple resources) such as the Capacitated Lot-Sizing Problem with Sequence-Dependent Setups (CLSD) and the General Lot-Sizing and Scheduling Problem for Multiple Production Stages (GLSPMS) do not feature in substitution options.

• Flexible Bills-of-Materials
• Mathematical Programming
• Modeling
• Production Planning
• Substitutions
• algorithms
• optimization
• simulation

• Institut für Betriebswirtschaftslehre, TU Darmstadt, Darmstadt, Germany

  J. Christian Lang

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