Design and Implementation of IGSQN

The IGSQN (interactive graphic simulation of queueing retwork) facilitates performance evaluation and behavior study of queueing network system It provides an interactive graphic environment for entire simulation process (modeling/experiment planning/running/result analysis), and is designed to be independent of specific simulation languages. It's a useful tool for the user without any simulation programming experience. The program, written in FORTRAN 77 and PLOT 10, has run on Honeywell DPS8/49 with TEK. 4109 graphic terminal. In this paper, the features, structure and implementation of IGSQN are presented.Also an example is given.