International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / To address the concerns of a declining defense budget, duplicate range capabilities, and applications of new technologies, the Deputy Director, Test Facilities and Resources, Test, Systems Engineering and Evaluation Directorate, Office of the Secretary of Defense (OSD), initiated the Common Test and Training Range Architecture (CTTRA) Workshop project. The development of a common test and training range architecture requires a series of workshops designed to apply the expertise of the test and training ranges and the installed systems test facilities (ISTF) communities to the challenges of architecture development and interface standardization. A common range architecture with standardized interfaces will facilitate asset sharing between the Services, increase the industry-government dual-use potential of OSD's test and training range facilities, and lower the cost of testing. Further, common range interfaces will allow the efficient integration of new instrumentation and simulations at minimum cost. To support development of the CTTRA, there have been three workshops, each expanding the accomplishments of the previous workshop. The first workshop was conducted 20-22 April 1994. The other workshops were held 12-14 October 1994 and 21-24 February 1995. The goals of the workshop process are to: • Develop a common test and training range architecture that supports the requirements of the test, training, and installed systems test facility communities • Identify areas with the potential to yield near-term interface standardization benefits. • Identify potential OSD Central Test and Evaluation Investment Program (CTEIP) projects. Thus far, the workshops have developed a top level and second level candidate CTTRA, identified areas for interface standardization, and established standing working groups responsible for continuing development of CTTRA and selected areas for interface standardization.