Computerization of manufacturing planning and control systems: Minicomputer-based systems 1980-1987

During the last decade, the implementation of computer-based manufacturing planning and control (MPC) systems, has changed character. The use of computers has matured-more and more users are aware of the relative benefits as well as the limitations of computers. Commercial systems have improved. For example, customization of standard packages is generally more flexible. But has this improvement of the conditions for successful MPC system implementation led to increased computerization of MPC functions? This paper presents a comparative study among companies and over time of the computerization of MPC systems in Sweden. In 1980, an implementation study of minicomputer-based system was carried out. In November 1987, the MPC system status of 59 companies was investigated again. The computerization of MPC during this period is compared and the plans for the near future are discussed. The computerization is related to changes in company ownership, company size and production orientation (make-to-stock or make-to-order).