FOR IMMEDIATE RELEASE

          ORCAD AND SUMMIT DESIGN ANNOUNCE TERMINATION OF PROPOSED MERGER 
                                          
     Beaverton, Oregon, February 2, 1999 -- OrCAD_ (NASDAQ:OCAD) and Summit
Design (NASDAQ:SMMT) today announced that they have mutually agreed to terminate
the Agreement and Plan of Reorganization originally announced on September 20,
1998. The Boards of Directors of Summit and OrCAD determined that the proposed
merger is no longer in the best interests of the companies' respective
stockholders. 

     ABOUT ORCAD
     Founded in 1985, OrCAD (NASDAQ:OCAD) is the leading supplier of Windows EDA
software and services to electronics companies worldwide. The company's
solutions increase productivity in the management of component data, and in the
design of field-programmable gate arrays (FPGAs), complex programmable logic
devices (CPLDs), analog and mixed analog-digital circuits, and printed circuit
boards (PCBs). OrCAD serves many segments of the worldwide electronics industry,
including aerospace, telecom, industrial control, military, medical equipment,
semiconductor, computer, and consumer products.

     The company is headquartered at 9300 S.W. Nimbus Avenue, Beaverton, Oregon,
97008 with offices in Irvine, California; Yokohama, Japan; and Basingstoke,
England. In other countries worldwide, a network of resellers represents OrCAD.

     ABOUT SUMMIT DESIGN
Summit Design, Inc. (NASDAQ:SMMT) is a leading international supplier of
engineering software products in the areas of high-level design creation,
analysis, verification, and optimization. The world's top electronics companies
use Summit products to increase engineering productivity, decrease 



time to market, and improve the quality of their products. 
Summit Design is headquartered at 9305 S.W. Gemini Drive, Beaverton, Oregon,
97008 with offices in Herzelea, Israel; St. Paul, Minnesota; and Campbell,
California. 

NOTE: OrCAD is a registered trademark and all OrCAD product and service names
are either registered trademarks, trademarks, or service marks of OrCAD, Inc.
Microsoft, Windows, and Windows NT are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other countries.
All other trademarks are the property of their respective holders.


CONTACT:  Armstrong Kendall, Inc.
          Jean Armstrong, 503/672-4680
          jean@armstrongkendall.com
                     or
          OrCAD
          Dave Bundy, 503/672-4800
          dave.bundy@orcad.com
                     or
          Summit Design
          Al Koob, 503/643-9281
          akoob@sd.com