Graphical description and a program generator for queuing models

The Queuing Model Generator (QMG), described in this article, is a module of the environment of the simulation language PASION. It contains a block-diagram editor which permits the user to define the structure of the model, and a program generator which generates the corresponding PASION code. This code is automatically translated to PASCAL. QMG is transpar ent, (i.e. the languages PASION and PASCAL are not visible for "non-program mer" users.) However, if the user knows PASION or PASCAL, then he can work with the resulting code, creating more complex models. An application in flexible manufacturing systems design is described.