The Defense Technical Information Center (DTIC), an organization charged with providing information services to the Department of Defense (DoD) scientific and technical community, actively seeks ways to promote resource sharing as a means for speeding access to information while reducing the costs of information processing throughout the technical library community. To achieve this goal, DTIC is sponsoring the development of an integrated bibliographic information system (IBIS). The system prototype, which has been under development since April 1983, will be used to demonstrate the concept of an integrated library system combined with an intelligent gateway capable of simultaneously querying and updating more than one heterogeneous bibliographic database (catalog) using a common command language. A discussion of the project includes the project background; DoD library environment; development approach; information processing concepts and technologies investigated and selected for implementation in the prototype system; and issues underpinning system implementation. Considerations for the future include devising an acquisition strategy, developing a standard or common set of index terms and controlled subject terms for shared cataloging and retrieval; developing a microcomputer-based version of the IBIS; and expanding the number of databases that can be accessed and queried using the common command language. (Author/KM)