Testing Master is a load and stress testing tool that provides you with an easy to use, consistent and cost-effective way of testing web sites and intranet applications with web interface. You can test and analyze the performance characteristics and bottlenecks of a web site under various load conditions. It emulates the activity of human users with virtual users. Each virtual user emulates the actions of one real user. A test run can contain hundreds or thousands of virtual users to let you emulate the load experienced by a web site when the corresponding number of real users browse it. The behavior of each virtual user, the number of them and other test parameters are specified in test scenario.