Wolfgang Pree

 About the authors:  Dr. Marcus Fontoura worked as a leader of several framework projects in the last four years. His interests include software engineering tools and environments, object-oriented design, and Web-based software development. He conducts his work at Department of Computer Science, Princeton University, U.S.A  Dr. Wolfgang Pree is a professor of computer science at the University of Constance, Germany, and head of the Software Research Lab. He has worked for many years in various areas of software engineering, in particular focusing on object-oriented software development, frameworks, software architectures, and human-computer interaction.  Dr. Bernhard Rumpe currently conducts research at the Munich University of Technology, Germany. In various publications he contributed to the UML standardization, including discussions of integrated semantics for several UML notations and methodical approaches to use UML more effectively. His interests include management and methodology in e-commerce projects.