Hierarchical Production Planning for General Jobs Shops : Part 2 : Evaluation and Application
Résumé
In the first part of this study, we provided a hierarchical model for mediumn- and short-term planning, as well as solution algorithms which iteratively provide near optimal solutions. In part 2, we evaluate these algorithms from different points of view. We first compare the hierarchical approach and the monolithic approach in terms of memory requirement and computational complexity. We then study the quality of production plans obtained using these algorithms. Finally, we present an industrial application and compose the results obtained using the hierarchical approach with those obtained by the MRP II system currently in use in the company.