Abstract    We extend a heuristic method within the framework of “dynamic capacity apportionment procedure” (DCAP) to allocate an existing capacity among the classes with different profit contributions. In general, DCAP is applied when some capacity shortage exists and can not be enhanced in short - run. Our proposed approach is constructed for a make - to - order manufacturing system that produces a variety of products while experiences a burst of demand in excess of capacity. Although, a higher level of profit can be gained  by accepting more orders from higher priority classes at the expense of rejecting some or all of orders of lower priority classes, it may result in elimination of an existing market segment. To avoid this case, which practitioners are very much concerned about it, we propose an approach by maintaining a desired minimum service level for each product class. This method of rationing policy maximizes the expected profit by discriminating product classes while meeting the individual product service level targets set by the management. We also highlight the managerial implications of such a result and identify possible avenues for further research.

Keywords    Capacity Management, Demand Management, Revenue Management, Customer/Product Service Level, Make-to-Order Manufacturing

References      1. Barut, M. and Sridharan, V., “Design and evaluation of a dynamic capacity apportionment procedure”, European Journal of Operational Research, Vol. 155, No. 1, (2004), 112–133. 2. Sridharan, V., “Managing capacity in tightly constrained systems”, Int. J. Production Economics, Vol. 56-57, No. 1, (1998), 601-610. 3. Smith, B., Leimkuhlcr, J. and Darrow, R., “Yield management at American airlines”, Interfaces, Vol. 22, No. 1, (1992), 8-31. 4. Balakrishnan, N., Sridharan, V. and Patterson, J. W., “Rationing capacity between two product classes”, Decision Sciences, Vol. 27, No. 2, (1996), 185-214. 5. Harris, F. H. and Pinder, J. P., “A revenue-management approach to demand management and order booking in assemble-to-order manufacturing”, Journal of Operations Management, Vol. 13, No. 4, (1995), 299–309. 6. Kimes, S. E., “Yield management: A tool for capacity constrained service firms”, Journal of Operations Management, Vol. 8, No. 4, (1989), 348-363. 7. Weatherford, L. R. and Bodily, S. E., “A taxonomy and research overview of perishable-asset revenue management: Yield management, overbooking and pricing", Operations Research, Vol. 40, No. 5, (1992), 831-844. 8. Stevenson, M., Hendry, L. C. and Kingsman, B. G., “A review of production planning and control: The applicability of key concepts to the make-to-order industry”, International Journal of Production Research, Vol. 43, No. 5, (2005), 869-898. 9. Hendry, L. C., Kingsman, B. G. and Cheung, P., “The effect of workload control (WLC) on performance in make-to-order companies”, Journal of Operations Management, Vol. 16, No. 1, (1998), 63-75. 10. Sridharan, V. and Balakrishnan, N., “Capacity rationing in multiperiod planning environments”, Proceedings of the Decision Sciences Institute, Annual Meeting, Orlando, FL, (1996), 1258-1260. 11. Patterson, J. W., Balakrishnan, N. and Sridharan, V., “An experimental comparison of capacity rationing models”, International Journal of Production Research, Vol. 35, No. 6, (1997), 1639-1649. 12. Pak, K. and Piersma, N., “Overview of OR techniques for airline revenue management”, Statistica Neerlandica, Vol. 56, No. 4, (2002), 480-496. 13. Fransoo, J. F. and Sridharan, V., “Demand management as a tactical decision tool in capacitated process Industries", Working Paper, Eindhoven University of Technology, Eindhoven, The Netherlands, (1994). 14. Fransoo, J. C., Sridharan, V. and Bertrand, J. “A hierarchical approach for capacity coordination in multiple products single-machine production systems with stationary stochastic demands”, European Journal of Operational Research, Vol. 86, No. 1, (1995), 57-72. 15. Hopp, W. J. and Sturgies M. L., “Quoting manufacturing due dates subject to a service level constraint”, IIE Transactions, Vol. 32, No. 9, (2000), 771-784. 16. Amaro, G., Hendry, L. C. and Kingsman, B. G., “Competitive advantage, customization and a new taxonomy for non make-to-stock companies”, International Journal of Operations and Production Management, Vol. 19, No. 4, (1999), 349-371. 17. Pfeifer, P. E., “The airline discount fare allocation problem”, Decision Sciences, Vol. 20, No. 1, (1989), 149–157. 18. Das, C., “Explicit formulas for the order size and reorder point in certain inventory problems”, Naval Research Logistics Quarterly, Vol. 23, No. 1, (1976), 25–30. 19. Hadley, G. and Whitin, T. M., “Analysis of Inventory Systems”, Prentice-Hall, Englewood Cliffs, NJ, (1963).