This paper is based on the experience gained by personnel in the Information Directorate of the U.S. Air Force Research Laboratory's Rome, NY, Research Site, during the development, validation, testing, and fielding of the Joint Defensive Planner (JDP) in the USAF Theater Battle Management Core Systems (TBMCS). JDP has been used for the past 3 years in its successive developmental spirals by the US/NE/GE Extended Air Defense Task Force during ...