WinPEPSY-QNS is a tool for calculating performance measures of queueing networks. It has an easy to use graphical user interface and facilities for extensive experiments which can be run on Windows PCs. It offers well known analysis methods as well as newly developed methods for product-form and non-product-form queueing networks.

Queueing network types Open networks Closed networks Mixed networks	Queueing systems types M/M/M - FCFS M/G/1 - Processor Sharing M/G/∞ - (Infinite Server) M/G/1 - LCFS PR M/G/m - FCFS
Analysis methods Mean value analysis Open product form analysis Method of Marie Decomposition Exact Markov chain analysis (steady state and transient) Approximate Markov chain analysis (steady state and transient) Simulation	Performance measures Waiting time Response time Number of jobs Number of jobs waiting Utilization Throughput