1846	 On Simulating Networks of Parallel Processes in Which Simultaneous Events May Occur	 Some of the problems of simulating discrete event systems particularly computer systems on a conventional digital computer are dealt with. The systems are assumed to be described as a network of interconnected sequential processes. Briefly reviewed are the common techniques used to handle such simulations when simultaneous events do not occur can be ignored or can be handled by simple priority rules. Following this the problem of dealing with simultaneous events in separate processes is introduced. An abstraction of this problem is developed which admits solution for a majority of commonly encountered problems. The technique will either find a method of simulating the parallel events or report that none can be found. In some of the latter cases it is shown to be possible to find a solution by extending the information available to the solution technique but in many cases the technique becomes computationally unfeasible when the additional information is provided. simulation parallel processes simultaneous events picture processing computer system simulation
