EXHIBIT 23.3
 
              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
The Board of Directors and Stockholders
OrCAD, Inc.:
 
  The audits referred to in our report dated January 27, 1997, included the
related financial statement schedule as of December 31, 1996, and for each of
the years in the three-year period ended December 31, 1996, included in the
registration statement. This financial statement schedule is the
responsibility of the Company's management. Our responsibility is to express
an opinion on this financial statement schedule based on our audits. In our
opinion, such financial statement schedule, when considered in relation to the
basic consolidated financial statements taken as a whole, presents fairly in
all material respects the information set forth therein.
 
We consent to the use of our reports included herein and to the reference to
our firm under the heading "Experts" in the Joint Proxy Statement/Prospectus.
 
                                          /s/ KPMG Peat Marwick LLP
 
                                          KPMG Peat Marwick LLP
 
Portland, Oregon
October 21, 1997