A Radiology Operations System (ROS) integrates the function of a PACS, an RIS and an HIS interface by means of unified telecommunications. The essential elements of the ROS are: 1. Picture Archival and Communication System (PACS): This system provides capabilities to acquire, display, manipulate and store images and text data required by the radiology department and its clinical and academic clients. 2. Radiology Information System (RIS): This system supports the text data needs of the department. It specializes in clerical and administrative activities. 3. Hospital Information System (HIS) Interface: This software supports the interface between the radiology department and the users of radiology department information. 4. Network: The network supporting an ROS moves text and image data throughout the department and into the hospital community. A variety of technologies are included in the network and applied as the needs for speed and volume dictate. This paper will examine the ROS concept, showing that the support provided is greater than the sum of its constituent systems. A case study is presented to illustrate the benefits that accrue from the implementation of an ROS.