Filed by Structural Dynamics Research Corporation
pursuant to "Rule 14a-12" under the Securities Act of 1933
Subject Company: Structural Dynamics Research Corporation
Commission File No.: 33-16541

TAI Manages Full Aircraft Lifecycle With SDRC's Metaphase

Unique product knowledge management solution improves time to market, enterprise efficiency

PARIS-June 18, 2001-SDRC (Nasdaq: SDRC) today announced that TAI (Turkish Aerospace Industries), is successfully using SDRC's MetaphaseŽ product knowledge management solution to manage all product lifecycle data for both its commercial and military customers. TAI's experience includes co-production of military aircraft including the F-16 fighters, the SF-260 trainers, the CN-235 light transports, the AS-532 Cougar helicopters as well as design and development of unmanned aerial vehicles and target drones. TAI also partners with the Airbus Military Company to build the FLA (Future Large Aircraft). The Company has also proven itself in the aerostructures manufacturing business for military and commercial aircraft.

TAI uses Metaphase to design and build commercial aircraft parts for customers including Boeing, Airbus, Eurocopter, Sikorsky, MDHI and many more. Via Metaphase, TAI downloads customers' databases, and builds and tracks parts. Metaphase handles the complete product lifecycle for TAI: it manages the aircraft configuration, technical documentation, process planning and tooling data; reports and process any non-conforming product data; confirms who built and inspected the part, and keeps track of records such as certificates of conformity.

"Metaphase has proven to be key in our ability to serve customers globally, and to partner within the European market," said Kaya Ergenç, General Manager, TAI. "SDRC's expertise in the aerospace industry has provided a leading solution that supports worldwide collaboration, which has become the business model throughout the aerospace-defense industry."

"SDRC has built capabilities into Metaphase which address the unique data management needs of commercial and military aircraft manufacturers: seamless global collaboration capabilities, full product lifecycle data management, and the ability of teams to share data easily among enterprises," said William Weyand, Chairman/Chief Executive Officer, SDRC. "We're delighted that TAI has been able to utilize all these capabilities in its broad-ranging aircraft projects."


About TAI -
TAI, an aerospace company headquartered in Ankara, Turkey, provides products and services to the aerospace, defense and information systems markets. It pursues aerospace-related commercial and military design, development, manufacturing, systems integration, modernization and maintenance business for the requirements of the Turkish Armed Forces and allied countries. Founded in 1984, the company employs 2,000 people. TAI manufactures and delivers more than 350 modern-day-aircraft of different types, and currently manufactures 100% of AS-532 Cougar airframes and 92% of CN-235 airframes, and MD-902 helicopter fuselage as the sole source.



About SDRC
SDRC (Structural Dynamics Research Corporation) provides complete software solutions for product design and collaborative product management. With headquarters in Cincinnati, Ohio, SDRC employs more than 2,500 people worldwide, with 64 offices in 18 countries throughout North America, Europe, and Asia/Pacific. For more information, contact SDRC at 1-800-848-7372.


Note to Editors: SDRC and Metaphase are registered trademarks of Structural Dynamics Research Corporation. All other trademarks or registered trademarks belong to their respective holders.


Additional Information and Where to Find It: It is expected that SDRC will file a proxy statement with the SEC in connection with the Merger, and that SDRC will mail a Proxy Statement to its shareholders containing information about the Merger. Investors and security holders are urged to read the Proxy Statement carefully when it is available. The Proxy Statement will contain important information about SDRC, EDS, the Merger, the persons soliciting proxies relating to the Merger, their interests in the Merger and related matters. Investors and security holders will be able to obtain free copies of these documents through the website maintained by the SEC at Free copies of the Proxy Statement and these other documents may also be obtained from SDRC by directing a request through the Investors Relations portion of SDRC's website at or by mail to SDRC, 2000 Eastman Drive, Milford, Ohio 45150, attention: Investor Relations, telephone: (513) 576-2400.


In addition to the Proxy Statement, SDRC and EDS file annual, quarterly and special reports, proxy statements and other information with the SEC. You may read and copy any reports, statements or other information filed by SDRC or EDS at the SEC public reference rooms at 450 Fifth Street, N.W., Washington, D.C. 20549 or at any of the SEC's other public reference rooms in New York, New York and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information on the public reference rooms. SDRC's and EDS' filings with the SEC are also available to the public from commercial document-retrieval services and at the Web site maintained by the SEC at


Participants in Solicitation: SDRC, its directors, executive officers and certain other members of management and employees may be soliciting proxies from SDRC shareholders in favor of the Merger. Information concerning the participants in the solicitation is set forth in a Current Report on Form 8-K filed by SDRC on May 24, 2001.
Cautionary Note Regarding Forward-Looking Statements under the Private Securities Litigation Reform Act of 1995: Certain matters discussed in this release are forward-looking statements that involve risks and uncertainties which could cause the actual results to differ materially from those projected, including the timely availability and acceptance of new products, global economic uncertainties, the impact of competitive products and pricing, the management of growth, and other risks detailed from time to time in the Company's most recent reports on Forms 10-K and 10-Q. In addition, the completion of the merger and related transactions with EDS is subject to the satisfaction or waiver of customary conditions that involve future developments.


@ 2001 KFKI ISYS Informatikai Kft.