With the development of techniques such as computer network, communication and software, Client/Server(C/S) system is widely used in all kinds of fields. It makes the design and development more convenient because of its multi-tier, graphic user interface(GUI), object-orient(OO), distributed data storage, concurrent control , isomeric platform and etc, but it also makes the testing for C/S system is more difficult and introduced a number of new and challenging testing problems. Although existing testing app...