Decision-making systems for production control planning and scheduling

The purpose of this communication is to introduce a new approach in the field of production-control with regard to plants working in small and medium size lots only. In order to suppress the disadvantages of the systems already in use, the GRAI proposes a now approach which is based on a hierarchical decomposition of the production control system and of the decision-making techniques. There will be first a description of the new structure, then u description of two applications corresponding to two elements of the structure, namely: (a) a conversational system for a quick calculation of the long-range production plans; (b) the aided dynamic scheduling.