The Robert L. Preger Intelligent Workplace (IW) at Carnegie Mellon University, which opened in December 1997, is a living laboratory designed to explore how new technologies and concepts can be applied to the built environment to improve building efficiency and human performance.  The project's goals are to provide:1) User comfort and satisfaction; 2) Organizational Flexibility; 3) Technological Adaptability; and 4) Environmental Sustainability.At this unique site, the building systems integration issues posed a bigger challenge than expected. Most systems installed in the space were not even commercially available at the time. For example, the Siemens Instabus system, which is currently being tested by LBNL researchers in the mock-up built for the NY Times headquarters facility, was just being launched in the US. The company had not appreciated the complexity of integrating daylighting and electrical lighting or the thornier controls issues, such as photosensor type, location and control algorithm. Furthermore, due to the high visibility of the project and the publicity around it, many vendors donated additional lighting, HVAC, envelope and control systems and infrastructures. These systems had to be examined, tested against the manufacturer's specifications and then integrated into functioning systems that could achieve the project's overall goals.