Excalibur and BTG Announce High-Performance Web Retrieval Solution; Integrated Turn-key Solution Addresses World Wide Web Multi-Source Information Retrieval Market.

MCLEAN, Va.--(BUSINESS WIRE)--April 30, 1996--Excalibur Technologies (Nasdaq:EXCA), the leading provider of information retrieval technology, and BTG Incorporated (Nasdaq:BTG), a systems integrator and exclusive distributor of Netscape products to the U.S. Government, today announced a high-performance product for retrieving multi-source data on the World Wide Web.

Excalibur has integrated its powerful RetrievalWare(TM) search engine with the Netscape Internet server to provide both pattern matching and concept-based searching of multiple data sources on the Web. RetrievalWare is a family of software components that enables developers to build information retrieval solutions across the spectrum of digital information, including text, document images and multimedia data. RetrievalWare users in both the public and private sectors include The Los Angeles Times, World News Connection, The Electric Library, Grayfire Information Services, ADP Brokerage Information Services, Physicians' Online, the U.S. Army and Navy, the Drug Enforcement Agency, and the Food and Drug Administration.

"Most large-scale solutions on the World Wide Web require a robust, scalable search technology," said Brad Osborne, Director of Imaging at BTG, Inc. "When data and user loads grow exponentially, more traditional text retrieval architectures simply fall apart. Excalibur's RetrievalWare can be scaled to a user's specific demands, supporting terabytes of data and thousands of concurrent users. It also has full authentication built in with its professional security server."

"Excalibur is a leader in providing scalable, turn-key Web retrieval solutions to the federal market," said Pat Condo, President and CEO of Excalibur Technologies. "Our partnership with BTG and BTG's experience with Netscape strengthens that position. Further, Excalibur retrieves all the types of information that users are exchanging today - text, RDBMS data, images or full-motion video. All these features underscore our commitment to produce high-performance text and multi-media retrieval solutions for Internet and Intranet markets."

Excalibur's RetrievalWare will be available to federal government agencies and other qualified buyers on BTG's GSA Schedules in the coming fiscal quarter.

RetrievalWare provides profiling capabilities for integrating real-time and retrospective text searching, document imaging, combined full text and database searching and content-based image retrieval in a wide range of applications. RetrievalWare's flexible and modular architecture is designed for exceptional scalability in distributed client/server environments.

BTG, Inc.

BTG, Inc. is an information technology company specializing in systems engineering, integration and networks, Internet services, manufacturing, and the value-added reselling of computer hardware, software and services. The company has over 900 employees in offices in 10 states and in Europe. Additional information on BTG is available on the Internet at http://www.btg.com/, by e-mail at [e-mail]/, or by calling 703-556-6518. Investors contact: John Graham, 703-761-6675, or e-mail: [e-mail].

Excalibur Technologies Corporation

Excalibur Technologies Corporation is a leader in information retrieval, focusing on high-performance search and retrieval solutions to the online, federal and corporate Intranet markets. Excalibur delivers both Adaptive Pattern Recognition Processing (APRP(TM)) and semantic network searching, simultaneously leveraging the underlying patterns of digital information and the actual meaning of words. Contact Excalibur in North America at 619-438-7900, in the United Kingdom at 44-1344-893-444, via e-mail at [e-mail], and on the Web at http://www.excalib.com.

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Note to Editors: Excalibur Technologies Corporation and the Excalibur logo are registered trademarks of Excalibur Technologies Corporation. APRP and RetrievalWare are trademarks of Excalibur Technologies Corporation. Netscape and Netscape Navigator are trademarks of Netscape Communications corporations. All other trades or service marks are proprietary to their respective owners.

CONTACTS: Judy Feder

Excalibur Technologies

914/328-2962

[e-mail]

or

Theda Parrish

BTG Incorporated

703/761-6581

[e-mail]

or

Fern Krauss

ESTN Communications

301-424-9140

[e-mail]