Digital simulation of large-scale systems

Abstract

Over the past decade systems analysis teams have repeatedly demonstrated the feasibility of using general purpose digital computers to simulate the operation of large-scale real-world systems. BAG, DECAP, INCA, STAGE, TEFORM and TEMPER are all representative examples. However, the process of developing and using these system simulations has not always been entirely satisfying to the ultimate users. The purpose of this paper is to examine the process of simulating systems, and so to suggest some causes of dissatisfaction and their remedies. Because of the diversity of usage, it seems to be important to define the key words to be used.