AdventNet QEngine is a powerful tool for automating the testing of J2SE/J2EE applications that are Web-based, SOAP or traditional client/server-based. For testing Web-based applications, it has the ability to record input and "play back" a series of actions performed by the user. With its regression testing capability, it tests Nightly builds produced for the target systems in an unattended fashion. This proves the robustness of QEngine as the automated testing tool.