SimWiz descriptions SimWiz is a computer program for defining validating communicating & running a discrete event simulation model. Such simulations are useful in industrial engineering service system planning traffic control communication engineering processor design & process flow control. The aim of simulation is to reveal flaws or allow experhymentation in the design of the system which can be tested on paper before investing in the creation of an actual system saving effort & cost. It is not just another simulation program or modeling language. Rather it is a totally new approach to help the user in various steps of a simulation project . The simplicity is a result of special features that cannot be found in any other simulation software: * The user does not have to be familiar with simulation modules to build a fairly complex model. If the user knows the system under consideration he/she can respond easily to a series of input requests from the software. The model is built as a result of the responses. * The model is stated in a human-readable format that can be understood by non-simulationists. So all the experts of the system can review it & contribute to its validity. * The model can be communicated easily & the recipient does not need any specialized software to read it. * Variance reduction techniques aiming to increase the accuracy of results are performed with a single click instead of tedious & error-prone manipulations of random streams in appropriate places in the model. * The model can be encoded so that it is very hard to recover from it any trade secret & can be therefore more safely communicated via unsecured channels. * Animation that concentrates on validity rather than frills & simplified tracing provide easy way to model validation. The model can be run in the inbuilt simulator or can be translated to an Arena model. It offers to build a model in record time without errors