The responsibilities of the system engineer are many and varied, especially as they relate to facility design and construction. Successful execution of these responsibilities requires an understanding of the underlying technologies, the applicable quality standards, and the proper methods for achieving them. The Communications Facility Design Handbook is dedicated to providing and supporting that understanding. It examines the tasks and functions of the system engineer and establishes a foundation for designing, installing, operating, and maintaining audio, video, computer, and radio frequency systems and facilities..