Few CIOs, programme or project managers doubt the need for automated testing for all but the most trivial projects. In particular, key enterprise systems that are regularly enhanced and updated to satisfy the never-ending stream of business change requests, require a rigorous validation process to ensure they will still work after each update. Business users have an especially low tolerance for bugs that are introduced with software ‘Enhancements’ and such bugs will usually be costly to rectify and/or have a profound effect on the reputation. Similarly, when the users are building a new system, and particularly when they have an agile development methodology, they need a means to assure the software quality throughout the development lifecycle.