Starting from a definition of architectural integration quality and related criteria, this book will help both architects and manufacturers improve their design work. Architects will find recommendations to optimize the integration quality, thus making the best out of the generally limited flexibility and low formal quality of presently available collectors; and examples of inspiring integration and innovative products are presented. For manufacturers, the book provides a set of guidelines for the development of new multifunctional and flexible products conceived from the outset for building integration, thus improving the market offer.