About the Author
Andreas Zeller is a full professor at the University of Saarbrucken, Germany. His research topics include testing and debugging, program analysis and configuration management. He is widely known for GNU DDD, a Unix/Linux debugger GUI that visualizes complex data and which is used by more than 250,000 users.
Jens Krinke is a research assistant at the University of Passau, Germany. He is an expert in software reengineering and program analysis. His research topic is the analysis of critical software.