Model-driven development has become the most important new paradigm in software development and has already demonstrated considerable impact in reducing time to market and improving product quality. However, the development of high-quality systems not only requires systematic development processes but also systematic test processes. This book is about systematic, model-driven test processes in the context of UML. As UML provides only limited means for the design and development of test artifacts, a consortium was formed by the Object Management Group (OMG) to develop a UML profile for model-driven testing the UML Testing Profile (UTP), an official OMG standard since 2005. Written by the original members of this standardization group, this book shows you how to use UML to test complex software systems. The authors introduce UTP step-by-step, using a case study that illustrates how UTP can be used for test modeling and test specification. Youll learn how UTP concepts can be used for functional and non-functional testing, with example applications and best practices for user-interfaces and service oriented architectures. In addition, the authors demonstrate how to apply UTP using frameworks like TTCN-3 and the JUnit test framework for Java. This book is the definitive reference for the only UML-based test specification language, written by the creators of that language. It is supported by an Internet site that provides information on the latest tools and uses of the profile.