Block oriented simulation of combined systems

summary:A programming system BOSCOS is described, which permits the computer to transform descriptions of combined systems into corresponding simulation programmes. The combined systems are composed of continuous blocks and discrete processes. The blocks behave according to ordinary differential equations or assignment statements, or represent networks composed of such blocks; the structure of the networks can vary in time. Interactions between blocks and processes are possible. The system has been implemented as a knowledge base (a class of formal definitions) in a object oriented programming language SIMULA