Virtual machining systems are applying computers and different types of software in manufacturing and production in order to simulate and model behavior and errors of real environment in virtual reality systems . It can provide useful means for products to be manufactured without the need of physical testing on the shop floor. As a result, the time and cost of part production can be decreased . Also, optimization techniques can be applied to the simulated machining process in order to increase efficiency of parts production . Virtual Machining systems and applications are presented by Mohsen Soori et. al.
 Mohsen Soori, Behrooz Arezoo, Mohsen Habibi, Virtual machining considering dimensional, geometrical and tool deflection errors in three-axis CNC milling machines, Journal of Manufacturing Systems 33 (2014) 498-507.
 Mohsen Soori, Behrooz Arezoo, Mohsen Habibi, Tool deflection error of three-axis CNC milling machines, monitoring and minimizing by a virtual machining system, ASME, Journal of Manufacturing Science and Engineering, 2015.