This working draft describes, and provides instructions for the use of, the RDB system as it currently exists at RAND. The RDB system is currently used by a number of projects at RAND, however the development is not finished and there are plans to make enhancements and extensions as required. Accordingly, revisions of this document will be produced.

The preparation of this research document was sponsored through RAND's three federally funded research and development centers - the National Defense Research Institute (sponsored by the Office of the Secretary of Defense and the Joint Staff), the Arroyo Center (sponsored by the U.S. Army), and Project AIR FORCE (sponsored by the U.S. Air Force).

It should be noted that the development of the computer code comprising the RDB system was not done under any RAND contract and was accomplished on non-RAND time as a personal computer science project of the author.