One of the best tools available to provide correct evaluations of system interdependencies is discrete event simulation. With the use of this simulation technique, manufacturers are able to quickly and accurately model future proposed modifications to their facilities without making costly guesses. It saves time and money in modeling the layout, and enables testing the performance. The models being created not only serve the initial purpose of determining buffer space and resource levels, but also permit evaluation of new cuttings on a regular basis [2][21].