Peter Zimmerer is a Principal Key Expert Engineer at Siemens AG, Technology, in Garching, Germany. He studied Computer Science at the University of Stuttgart, Germany and received his M.Sc. degree (Diplom-Informatiker) in 1991. He is an ISTQB Certified Tester Full Advanced Level and member of the German Testing Board (GTB).For more than 30 years he has been working in the field of software testing and quality engineering for object-oriented, component-based, distributed, service-oriented, and embedded software systems. He was also involved in the design and development of several Siemens in-house testing tools for component and integration testing.At Siemens he performs consulting, coaching, and training on test management and test engineering practices including test strategies, test architectures, test methods, test techniques, test processes, and test automation in real-world projects and drives research and innovation in this area. He is author of several papers and articles and frequent speaker at international conferences in Europe, US, and Canada.