SDRC Ships Metaphase 3.2 e-PDM Software; Software Provides Foundation for E-business Solutions, Allows Organizations and Suppliers to Share Data, Processes.

     Business Editors/High-Tech Writers

     CINCINNATI--(BUSINESS WIRE)--Dec. 20, 1999--SDRC (Nasdaq:SDRC), a
leading global supplier of enterprise product development solutions
and developer of Metaphase(R) Enterprise(TM) and I-DEAS(R) software,
today announced the shipment of Metaphase 3.2 product data management
(PDM) software, including the Metaphase Change Management solution.
     Metaphase(R) 3.2 provides the foundation for the Four C's of
e-PDM -- key business process improvements companies must have to
succeed in e-business: the capability to control information, connect
people with information, facilitate collaboration among information
users, and configure products based on fast, accurate information
sharing. The Metaphase web-centric information infrastructure is the
basis for its flexible and scalable solutions that are quickly
implemented in companies of all sizes for immediate business return in
the e-business global marketplace.
     Metaphase harnesses intellectual capital to drive product
innovation and manage the complete product life cycle, delivering
sustainable competitive advantage to its customers. To support the
Four C's of e-PDM, Metaphase 3.2 introduces enhancements to support
customers' most strategic business initiatives through:

     --   Enhanced federation capabilities, enabling transfer of
          information ownership between federated systems, across
          heterogeneous object models.
     --   Bulk data replication, allowing worksites to share
          information across networks more quickly.
     --   Publish/subscribe, supporting team collaboration.
     --   Electronic signature, helping to improve data security.
     --   Enhanced change management, speeding product development.
     --   PDM Enablers industry-specification compatibility, providing
          for standards-based exchange of data.
     --   Java 2-compatibility, enabling use of Java server pages and
          servlets.

     Metaphase Change Management, part of Metaphase 3.2, enables
organizations to reuse intellectual capital and evaluate change within
a business context by managing products early in the design process.
It allows customers to identify and understand the impact of changes
on product requirements, design, cost, scheduling, and quality; and to
authorize modifications to product structures and definition
information when changes occur.
     For more information about any of SDRC's products, call
1-800/848-7372.

     About SDRC

     SDRC (Structural Dynamics Research Corporation) is one of the
world's leading providers of enterprise product development solutions
with its suite of mechanical design automation software and product
data management software. The Company's products, coupled with
engineering and consulting services, help manufacturers optimize
product development early in the design process, enabling them to
reduce cost and cycle time while significantly improving quality and
time to market. SDRC provides the market-leading PDM software,
Metaphase(R) Enterprise(TM), which is developed, marketed and
supported by SDRC's Metaphase Technology Division, and the
award-winning I-DEAS(R) product suite of integrated CAD/CAM/CAE
software. SDRC employs more than 2,500 people worldwide, with 77
offices in 18 countries throughout North America, Europe, and
Asia/Pacific.

     http://www.SDRC.com/

     Note to Editors: SDRC, Metaphase and I-DEAS are registered
trademarks, and Metaphase Enterprise is a trademark of Structural
Dynamics Research Corporation. All other trademarks or registered
trademarks belong to their respective holders.

     --30--EB/ho*

     CONTACT: SDRC
              Mary Ward, Manager, Public Relations
              513/576-2151
              [e-mail]
              or
              SDRC/Metaphase
              Margaret Furleigh, Director, Communications
              651/482-2608
              [e-mail]
              or
              SDRC
              Kevin Morrow, Director, Investor Relations
              513/576-2627
              [e-mail]

     KEYWORD: OHIO
     INDUSTRY KEYWORD: COMPUTERS/ELECTRONICS SOFTWARE