Simulation and animation with SIMNET II and ISES

A description is given of SIMNET II, a network-based discrete simulation language that utilizes only four nodes: a source, a queue, a facility, and an auxiliary. Special routing of transactions among the four nodes is effected using seven types of branches and the so-called special assignments. SIMNET II offers flexible computational capabilities at a level equal to Fortran with access to all internal simulation data and files. The computational and modeling power of the language eliminates the need for the use of external Fortran or C inserts. The companion system ISES combines input, no-programming animation, debugging, and execution in a user-friendly interactive environment. An important feature of the system is that ISES generates the animation model without any special programming effort on the part of the user