This proceedings book consists of the papers accepted for presentation at the joint conference of the International Mass Customization Meeting 2007 (IMCM’07) and International Conference on Economic, Technical and Organizational Aspects on Product Configuration Systems (PETO’07). Innovations in product design as well as in order acquisition and fulfillment processes are the main topics discussed in this book. The successful implementation of mass customization largely depends on the company’s performance in these areas. Experts with different research backgrounds present high quality papers with new solution approaches, methods and tools. An important portion of the discussion is devoted to configuration systems and product models. The new concepts not only tackle customer interaction at the front-office but also technical modeling and product descriptions for the back-office. In summary, the present book provides students and researchers with business administration and engineering backgrounds as well as practicing mangers with an overview of the latest findings in mass customization and product configuration research.