Model description method based on a graphical language and a character based language together for a queueing network model

In existing queueing network evaluation system, a user selects the model for among sorts of prepared model and can describe for defining feature of model. Therefore, it is hard for the user to select adequate model, and representing connection between entities is so hard for the user that representing queueing network is difficult. So, we propose the model description method that the user can use in graphical user interface so as to compensate for such weak points. By using it, the user is possible to model easily and do not have to select which models the user want to use. And, representing connection between entities is easy. Then, we actually model with proposal method and show usefulness with comparing existing queueing network evaluation systems.