About the Authors

Andreas Spillner is professor of computer science at the Faculty of Electrical Engineering and Computer Science at Bremen University of Applied Sciences. For more than 10 years he was president of the German Special Interest Group in Software Testing, Analysis, and Verification of the German Informatics Society (GI). He is also a member of the German Testing Board. His work emphasis is on software engineering, quality assurance, testing, and object-oriented system development.

Thomas Rossner is cofounder of imbus AG. As a member of the board of directors, he is responsible for research and technology projects. In this function he has, in recent years, led several international research projects on, among others, software reliability and model-based testing. In addition, he is actively involved in test management projects and in consultancy projects on the subject of test process improvement.

Mario Winter is professor at the Faculty of Computer Science and Engineering Science of Cologne University of Applied Sciences and a member of the Software Quality Group. From 1983 to 1987, he was engaged in the execution and management of industrial and scientific engineering projects, and between 1994 and 2002, he was research fellow at the FernUniversität Hagen. Currently he is spokesman of the German Special Interest Group in Software Testing, Analysis, and Verification of the German Informatics Society (Gl) and a member of the German Testing Board. His teaching and research focus is on software development and project management, especially on the development and quality assurance of object-oriented software.

Tilo Linz is CEO of imbus AG, a leading service company for software testing in Germany. He is president of the German Testing Board and was, from 2002 to 2005, president of the ISTQB. His work emphasis is on consulting and coaching projects on software quality management, optimizing software development, and testing processes.