AS FURNISHED TO THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 6, 1998

                                 SCHEDULE 14A
                                (RULE 14a-101)

                    INFORMATION REQUIRED IN PROXY STATEMENT

                           SCHEDULE 14A INFORMATION
          PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                             EXCHANGE ACT OF 1934

 
Filed by the Registrant [X]
Filed by a Party other than the Registrant [_]
Check the appropriate box:
[_]  Preliminary Proxy Statement             [_]  Confidential, For Use of the
[_]  Definitive Proxy Statement                   Commission Only (as permitted
[X]  Definitive Additional Materials              by Rule 14a-6(e)(2))
[_]  Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12

                           -------------------------

                            CAYENNE SOFTWARE, INC.
               (Name of Registrant as specified in its Charter)

                           -------------------------

Payment of filing fee (Check the appropriate box):
[X]  No fee required
[_]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
[_]  Fee paid previously with preliminary materials:
[_]  Check box if any part of the fee is offset as provided by Exchange Act
     Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
     paid previously. Identify the previous filing by registration statement
     number, or the form or schedule and the date of its filing.

     (1)  Amount previously paid:
     (2)  Form, Schedule or Registration Statement no.:
     (3)  Filing Party:
     (4)  Date Filed:

 
                        Additional Soliciting Materials

     Cayenne Software, Inc. (the "Company") is filing the material set forth
below as additional soliciting material pursuant to Rule 14a-6(b) of the General
Rules and Regulations under the Securities Exchange Act of 1934, as amended.
The material contained below, which discusses certain aspects of the proposed
acquisition of the Company by Sterling Software, Inc. and Sterling Software
(Southern), Inc. in a question and answer format, has been posted on the
Company's Web page (http://www.cayennesoft.com) for the information of the
Company's stockholders.  It must be read in conjunction with the definitive
proxy materials filed with the Commission on September 24, 1998 and previously
provided to the Company's stockholders.

     The following information has been posted:

     "Q. EXPLAIN THE DEAL. WHAT AM I GOING TO GET FOR MY STOCK?

     A.  The total price to be paid for Cayenne is $11.4 million. Cayenne has 2
     classes of stockholders, common and preferred. Of the total price, $3.4
     million goes to the preferred stockholders.  The balance of $8 million
     (which is $0.375 per share of outstanding common stock) will be paid to the
     common stockholders, subject to reduction by the amount of any interim
     financing provided to Cayenne based on Sterling Software's  credit  support
     prior to closing the transaction.

     Q.  WHAT IS INTERIM FINANCING?

     A.  In its June 30, 1998 10Q filing with the SEC, Cayenne indicated that
     due to the loss that it incurred in the second quarter, it was in default
     under its bank loan agreement and that it might be unable to continue as a
     going concern. In view of this situation, Sterling Software has agreed to
     provide credit support for Cayenne, allowing Cayenne to borrow up to $3
     million for working capital requirements until the closing of the
     transaction. Any amount that Cayenne is required to borrow under this
     arrangement will be deducted from the amount payable to common
     stockholders. As stated in its definitive proxy statement, Cayenne believes
     that it may not need to make any significant borrowings under the interim
     financing so long as the merger closes at a time consistent with the
     Special Meeting of Stockholders to be held on October 23, 1998. There are
     many factors that could cause Cayenne to require interim financing,
     however, including cash collections that are less than forecast, lower
     levels of new or repeat sales or unexpectedly high expenses. If the
     transaction does not close when scheduled (whether due to the need to
     adjourn the Special Meeting to solicit additional proxies or otherwise),
     Cayenne may need to borrow a substantial amount from the interim financing
     facility.

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     Q:  WILL ANY SEVERANCE OR RELATED BENEFITS PAID TO EXECUTIVES OF CAYENNE IN
     CONNECTION WITH ITS ACQUISITION BY STERLING SOFTWARE ADD TO AMOUNTS THAT
     CAYENNE WILL BE REQUIRED TO BORROW PRIOR TO CLOSING, AND THUS REDUCE THE
     CASH PAYABLE TO CAYENNE'S COMMON STOCKHOLDERS UNDER THE MERGER AGREEMENT?

     A:  No.  The Merger Agreement specifically provides that Sterling  Software
     is to assume all of Cayenne's severance obligations to its executives.  Any
     payments in respect of these obligations will be made by Sterling Software
     after the closing of the transaction, (i.e., after the cash payable to
     Cayenne's common stockholders has been fixed).  Thus, Sterling Software
     will effectively absorb these costs, not the stockholders of Cayenne.

     Q:  AS A COMMON STOCKHOLDER, HOW MUCH WILL I RECEIVE ON A PER SHARE BASIS?

     A:  The deal is worth up to $0.375 per share to common stockholders,
     depending on how much interim financing is required.  For example, if
     Cayenne required $3 million of interim financing, stockholders would
     receive $0.234.  On the other hand, if no additional  financing is
     required, common stockholders will receive $0.375 per share.

     Q:  HOW MUCH WILL CAYENNE NEED TO BORROW?

     A:  It is difficult to predict because of the number of factors affecting
     Cayenne's need to borrow.  In its proxy statement, however, Cayenne stated
     that it believes it may be able to avoid making any significant borrowings.
     There are many factors that could cause Cayenne to require interim
     financing, however, including cash collections that are less than forecast,
     lower levels of new or repeat sales or unexpectedly high expenses.  If the
     transaction does not close when scheduled, Cayenne may need to borrow a
     substantial amount from the interim financing facility.

     Q:  HOW MANY VOTES ARE REQUIRED TO CLOSE THE TRANSACTION?

     A:  A favorable vote by holders of 2/3 of the common shares outstanding is
     required to approve the transaction.  All of the preferred stockholders
     have agreed to  vote in favor of the transaction.

     Q:  WHY DO THE SERIES D CONVERTIBLE PREFERRED STOCKHOLDERS GET $3.4
     MILLION?

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     A:  As its name implies, preferred stock ordinarily has various
     preferential rights relative to common stock. In the case of the Series D
     convertible preferred stock, these rights include (i) the right to receive
     approximately $21.00 per share in any bankruptcy or other liquidation of
     Cayenne (prior to any payment being made on account of Cayenne common
     stock), (ii) the right to convert into an aggregate of approximately
     19,500,000 shares of Cayenne common stock (or, in certain circumstances, to
     require Cayenne to repurchase shares of series D convertible preferred
     stock), and (iii) the right to vote as a separate class on certain
     extraordinary transactions involving Cayenne (i.e., a veto right over
     transactions such as the merger). The amount to be received by the holders
     of Series D preferred stock in the merger was specified by Sterling
     Software in its offer to acquire Cayenne. As required by Sterling Software,
     the preferred stockholders agreed to vote in favor of the merger and not to
     exercise any conversion rights. Cayenne's common stockholders would receive
     substantially less (on a per share basis) in the merger if, hypothetically,
     the Series D convertible preferred stock were fully converted into common
     stock prior to the effective time of the merger. The relative rights and
     preferences of the Series D convertible preferred stock and the common
     stock were among the various factors considered by Adams, Harkness & Hill
     in rendering its fairness opinion relating to the merger.

     Q:  HOW MANY SHARES OF COMMON STOCK ARE OUTSTANDING?

     A:  21,333,398 shares.

     Q:  WHY DID CAYENNE CHOOSE TO SELL TO STERLING SOFTWARE?

     A:  As Cayenne had previously announced, it retained the investment banking
     firm of Adams, Harkness and Hill to assist it in evaluating strategic
     alternatives during May. At the conclusion of this process and in
     consideration of Cayenne's difficult financial situation, Sterling Software
     provided Cayenne the best assurance of being able to successfully close
     this transaction quickly and agreed to provide credit support for the
     interim financing required to carry Cayenne through to the closing.
     Sterling Software is a large and financially stable company that has
     successfully completed 30 acquisitions.

     Q:  DID YOU CONSIDER OTHER OFFERS?

     A:  As Cayenne stated in its proxy statement, other offers and expressions
     of interest were considered by the Board.  However, there were no other
     proposals that provided the same degree of certainty with respect to
     closing the transaction 

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     quickly and successfully. Other proposals included conditions that reduced
     the level of certainty with regard to their ability to close in accordance
     with their terms.

     Q:  WHAT HAPPENS IF THE STOCKHOLDERS DO NOT APPROVE THIS TRANSACTION BY THE
     REQUIRED VOTE?

     A:  Sterling Software would have the right to terminate the Merger
     Agreement, to require Cayenne to pay it a break-up fee of $570,000 and to
     demand immediate repayment of any interim financing advances outstanding.
     In addition, Silicon Valley Bank would have the right to demand immediate
     repayment of all amounts owed to it by Cayenne.  In light of the serious
     liquidity concerns disclosed by Cayenne in its June 30, 1998 10Q report
     filed with the SEC, it is unlikely that Cayenne would be able to continue
     as a going concern.

     Q:  WHEN WILL I RECEIVE MY PROXY STATEMENT?

     A:  Shareholders Communication Corporation has been retained by Cayenne
     Software, Inc. as proxy solicitor.  Mailing of proxy materials commenced on
     September 25, 1998.  If you do not receive your proxy materials by October
     9, 1998 or would like additional information, please contact Shareholders
     Communication Corporation at 1-800-733-8481, extension 441.

A Proxy Statement containing more detailed information has been mailed to each
person who, as of September 16, 1998, was a holder of record of Cayenne stock.
Stockholders are urged to read the Proxy Statement carefully and in its entirety
before deciding how to vote."

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