This book has become a standard work for development and design as the core of integrated product creation. Three main focuses are emphasized: the integrative way of thinking, method application, and empirical design theory. The sixth edition includes numerous updates and revisions on the following topics: quality management, safety management, behavior in crises, methods of variant management, modular design, guideline VDI 2221, creativity, uncertainty in decision-making, open innovation, development of mechatronic products, requirements management, change management, and much more.