Computer simulation is an attempt to model a real-life or hypothetical situation on a computer so that it can be studied to see how the system works. This book provides an excellent coverage on system modeling and simulation with the help of examples and applications taken from diverse areas like computer systems, statistics, manufacturing and insurance. The book presents valuable guidelines on the materials required to build a simulation model, explains the process of evaluating results and helps to take decisions based on the results. Apart from an in-depth discussion on Arena and its step-by-step approach to convert a problem statement into an Arena simulation model, the book also briefly discusses a number of commercially available software on simulation like GPSS, SIMSCRIPT and DYNAMO.