1
                                                                     EXHIBIT 4.4
                                                                       EXHIBIT E


NEITHER THESE SECURITIES NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE
EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR
THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM
REGISTRATION UNDER SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"),
AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE
EXEMPTION FROM THE REGISTRATION REQUIREMENTS THEREUNDER AND IN COMPLIANCE WITH
APPLICABLE STATE SECURITIES OR BLUE SKY LAWS.


                             CAYENNE SOFTWARE, INC.

                                     WARRANT

                                  July 18, 1997


    Cayenne Software, Inc., a Massachusetts corporation (the "Company"), hereby
certifies that, for value received, Southbrook International Investments, Ltd.,
or its registered assigns ("Holder"), is entitled, subject to the terms set
forth below, to purchase from the Company up to a total of [ ](1) shares of
Common Stock, $.01 par value per share (the "Common Stock"), of the Company
(each such share, a "Warrant Share" and all such shares, the "Warrant Shares")
at an exercise price equal to [ ](2) per share (as adjusted from time to time as
provided in Section 8, the "Exercise Price"), at any time and from time to time
commencing on the earlier of (i) the date that is one year from the date hereof
and (ii) six months from the date a registration statement covering the Warrant
Shares is declared effective, and through and including

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(1)   The number of shares per Warrant shall equal 66,666, 66,666 and 100,000,
      respectively.

(2)   Such exercise price shall equal 125%, 135% and 150% for each Warrant
      issued, respectively, of the average Per Share Market Value (as such term
      is defined in the Series C Statement of Rights and Preferences, Exhibit A
      to the Convertible Preferred Stock Purchase Agreement, dated as of the
      date hereof between the Holder and the Company (the "Series C Statement of
      Rights and Preferences")) for the ten (10) Trading Days (as such term is
      defined in the Statement of Rights and Preferences) immediately preceding
      the Original Issue Date (and in no event less than the par value of the
      Common Stock).


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[     ](1) (the "Expiration Date"), and subject to the following terms and
conditions:

            (a) Registration of Warrant. The Company shall register this
Warrant, upon records to be maintained by the Company for that purpose (the
"Warrant Register"), in the name of the record Holder hereof from time to time.
The Company may deem and treat the registered Holder of this Warrant as the
absolute owner hereof for the purpose of any exercise hereof or any distribution
to the Holder, and for all other purposes, and the Company shall not be affected
by notice to the contrary.

            (b) Registration of Transfers and Exchanges.

                  (a) The Company shall register the transfer of any portion of
this Warrant in the Warrant Register, upon surrender of this Warrant, with the
Form of Assignment attached hereto duly completed and signed, to the Company at
the office specified in or pursuant to Section 3(b). Upon any such registration
or transfer, a new warrant to purchase Common Stock, in substantially the form
of this Warrant (any such new warrant, a "New Warrant"), evidencing the portion
of this Warrant so transferred shall be issued to the transferee and a New
Warrant evidencing the remaining portion of this Warrant not so transferred, if
any, shall be issued to the transferring Holder. The acceptance of the New
Warrant by the transferee thereof shall be deemed the acceptance of such
transferee of all of the rights and obligations of a holder of a Warrant.

                  (b) This Warrant is exchangeable, upon the surrender hereof by
the Holder to the office of the Company specified in or pursuant to Section 3(b)
for one or more New Warrants, evidencing in the aggregate the right to purchase
the number of Warrant Shares which may then be purchased hereunder. Any such New
Warrant will be dated the date of such exchange.

            (c) Duration and Exercise of Warrants.

                  (a) This Warrant shall be exercisable by the registered Holder
on any business day before 5:30 P.M., New York time, at any time and from time
to time on or after the date hereof to and including the Expiration Date. At
5:30 P.M., New York time on the Expiration Date, the portion of this Warrant not
exercised prior thereto shall be and become void and of no value. Prior to the
Expiration Date, the Company may not call or otherwise redeem this Warrant
without the prior written consent of the Holder.

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1     2000, 2001 and 2002 in each Warrant issued, respectively.


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                  (b) Subject to Sections 2(b), 6 and 10, upon surrender of this
Warrant, with the Form of Election to Purchase attached hereto duly completed
and signed, to the Company at its office at 8 New England Executive Park,
Burlington, MA 01803, Attention: Chief Financial Officer, or at such other
address as the Company may specify in writing to the then registered Holder, and
upon payment of the Exercise Price multiplied by the number of Warrant Shares
that the Holder intends to purchase hereunder, in lawful money of the United
States of America, in cash or by certified or official bank check or checks, all
as specified by the Holder in the Form of Election to Purchase, the Company
shall promptly (but in no event later than 3 business days after the Date of
Exercise) issue or cause to be issued and cause to be delivered to or upon the
written order of the Holder and in such name or names as the Holder may
designate, a certificate for the Warrant Shares issuable upon such exercise,
free of restrictive legends other than as required by applicable law. Any person
so designated by the Holder to receive Warrant Shares shall be deemed to have
become holder of record of such Warrant Shares as of the Date of Exercise of
this Warrant.

                  A "Date of Exercise" means the date on which the Company shall
have received (i) this Warrant (or any New Warrant, as applicable), with the
Form of Election to Purchase attached hereto (or attached to such New Warrant)
appropriately completed and duly signed, and (ii) payment of the Exercise Price
for the number of Warrant Shares so indicated by the holder hereof to be
purchased.

                  (c) This Warrant shall be exercisable, either in its entirety
or, from time to time, for a portion of the number of Warrant Shares. If less
than all of the Warrant Shares which may be purchased under this Warrant are
exercised at any time, the Company shall issue or cause to be issued, at its
expense, a New Warrant evidencing the right to purchase the remaining number of
Warrant Shares for which no exercise has been evidenced by this Warrant.

            (d) Piggyback Registration Rights. During the term of this Warrant
the Company may not file any registration statement with the Securities and
Exchange Commission (other than registration statements of the Company filed on
Form S-8 or Form S-4 including supplements thereto, but not additionally filed
registration statements in respect of such securities, each as promulgated under
the Securities Act of 1933, as amended, pursuant to which the Company is
registering securities pursuant to a Company employee benefit plan or pursuant
to a merger, acquisition or similar transaction) unless the Company provides the
Holder with not less than five business days notice to each of the Holder and


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Robinson Silverman Peace Aronsohn & Berman LLP, attention Eric L. Cohen, notice
of its intention to file such registration statement and provides the Purchaser
the option to include any or all of the applicable Warrant Shares therein. The
piggyback registration rights granted to the Holder pursuant to this Section
shall continue until all of the Holder's Warrant Shares have been sold in
accordance with an effective registration statement or upon the expiration of
this Warrant. The Company will pay all registration expenses in connection
therewith.

            (e) Demand Registration Rights. At any time during the term of this
Warrant when the Warrant Shares are not registered pursuant to an effective
registration statement, the Holder may make a written request for the
registration under the Securities Act of 1933, as amended (a "Demand
Registration"), of all or any portion of the Warrant Shares (the "Registrable
Securities"), and the Company shall use its best efforts to effect such Demand
Registration as promptly as possible, but in any case within 90 days thereafter.
Any request for a Demand Registration shall specify the aggregate number of
Registrable Securities proposed to be sold and shall also specify the intended
method of disposition thereof. The right to cause a registration of the
Registrable Securities under this Section 5 shall be limited to two such
registrations. In any registration initiated as a Demand Registration, the
Company will pay all registration expenses in connection therewith. A Demand
Registration shall not be counted as a Demand Registration hereunder until such
Demand Registration has been declared effective by the Securities and Exchange
Commission and maintained continuously effective for a period of at least 360
days or such shorter period when all Registrable Securities included therein
have been sold in accordance with such Demand Registration, provided, however
that any days on which such registration statement is not effective or on which
the Holder is not permitted by the Company or any governmental authority to sell
Warrant Shares under such registration statement shall not count towards such
360 day period.

            (f) Payment of Taxes. The Company will pay all documentary stamp
taxes attributable to the issuance of Warrant Shares upon the exercise of this
Warrant; provided, however, that the Company shall not be required to pay any
tax which may be payable in respect of any transfer involved in the registration
of any certificates for Warrant Shares or Warrants in a name other than that of
the Holder, and the Company shall not be required to issue or cause to be issued
or deliver or cause to be delivered the certificates for Warrant Shares unless
or until the person or persons requesting the issuance thereof shall have paid
to the Company the amount of such tax or shall have established to the
satisfaction of the Company that such tax has been paid. The


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Holder shall be responsible for all other tax liability that may arise as a
result of holding or transferring this Warrant or receiving Warrant Shares upon
exercise hereof.

            (g) Replacement of Warrant. If this Warrant is mutilated, lost,
stolen or destroyed, the Company may in its discretion issue or cause to be
issued in exchange and substitution for and upon cancellation hereof, or in lieu
of and substitution for this Warrant, a New Warrant, but only upon receipt of
evidence reasonably satisfactory to the Company of such loss, theft or
destruction and indemnity, if requested, satisfactory to it. Applicants for a
New Warrant under such circumstances shall also comply with such other
reasonable regulations and procedures and pay such other reasonable charges as
the Company may prescribe.

            (h) Reservation of Warrant Shares. The Company covenants that it
will at all times reserve and keep available out of the aggregate of its
authorized but unissued Common Stock, solely for the purpose of enabling it to
issue Warrant Shares upon exercise of this Warrant as herein provided, the
number of Warrant Shares which are then issuable and deliverable upon the
exercise of this entire Warrant, free from preemptive rights or any other actual
contingent purchase rights of persons other than the Holders (taking into
account the adjustments and restrictions of Section 9). The Company covenants
that all Warrant Shares that shall be so issuable and deliverable shall, upon
issuance and the payment of the applicable Exercise Price in accordance with the
terms hereof, be duly and validly authorized, issued and fully paid and
nonassessable.

            (i) Certain Adjustments. The Exercise Price and number of Warrant
Shares issuable upon exercise of this Warrant are subject to adjustment from
time to time as set forth in this Section 9. Upon each such adjustment of the
Exercise Price pursuant to this Section 9, the Holder shall thereafter prior to
the Expiration Date be entitled to purchase, at the Exercise Price resulting
from such adjustment, the number of Warrant Shares obtained by multiplying the
Exercise Price in effect immediately prior to such adjustment by the number of
Warrant Shares issuable upon exercise of this Warrant immediately prior to such
adjustment and dividing the product thereof by the Exercise Price resulting from
such adjustment.

                  (a) If the Company, at any time while this Warrant is
outstanding, (i) shall pay a stock dividend (except scheduled dividends paid on
outstanding preferred stock as of the date hereof which contain a stated divided
rate) or otherwise make a distribution or distributions on shares of its Common
Stock (as defined below) or on any other class of capital stock and not the


                                      -5-
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Common Stock) payable in shares of Common Stock, (ii) subdivide outstanding
shares of Common Stock into a larger number of shares, or (iii) combine
outstanding shares of Common Stock into a smaller number of shares, the Exercise
Price shall be multiplied by a fraction of which the numerator shall be the
number of shares of Common Stock (excluding treasury shares, if any) outstanding
before such event and of which the denominator shall be the number of shares of
Common Stock (excluding treasury shares, if any) outstanding after such event.
Any adjustment made pursuant to this Section shall become effective immediately
after the record date for the determination of stockholders entitled to receive
such dividend or distribution and shall become effective immediately after the
effective date in the case of a subdivision or combination, and shall apply to
successive subdivisions and combinations.

                  (b) In case of any reclassification of the Common Stock, any
consolidation or merger of the Company with or into another person, the sale or
transfer of all or substantially all of the assets of the Company or any
compulsory share exchange pursuant to which the Common Stock is converted into
other securities, cash or property, then the Holder shall have the right
thereafter to exercise this Warrant only into the shares of stock and other
securities and property receivable upon or deemed to be held by holders of
Common Stock following such reclassification, consolidation, merger, sale,
transfer or share exchange, and the Holder shall be entitled upon such event to
receive such amount of securities or property equal to the amount of Warrant
Shares such Holder would have been entitled to had such Holder exercised this
Warrant immediately prior to such reclassification, consolidation, merger, sale,
transfer or share exchange. The terms of any such consolidation, merger, sale,
transfer or share exchange shall include such terms so as to continue to give to
the Holder the right to receive the securities or property set forth in this
Section 9(b) upon any exercise following any such reclassification,
consolidation, merger, sale, transfer or share exchange.

                  (c) If the Company, at any time while this Warrant is
outstanding, shall distribute to all holders of Common Stock (and not to holders
of this Warrant) evidences of its indebtedness or assets or rights or warrants
to subscribe for or purchase any security (excluding those referred to in
Sections 9(a), (b) and (d)), then in each such case the Exercise Price shall be
determined by multiplying the Exercise Price in effect immediately prior to the
record date fixed for determination of stockholders entitled to receive such
distribution by a fraction of which the denominator shall be the Exercise Price
determined as of the record date mentioned above, and of which the numerator
shall be such Exercise Price on such record date less the then fair market value
at such


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record date of the portion of such assets or evidence of indebtedness so
distributed applicable to one outstanding share of Common Stock as determined by
the Company's independent certified public accountants that regularly examines
the financial statements of the Company (an "Appraiser").

                  (d) If, at any time while this Warrant is outstanding, the
Company shall issue or cause to be issued rights or warrants to acquire or
otherwise sell or distribute shares of Common Stock to all holders of Common
Stock for a consideration per share less than the Exercise Price then in effect,
then, forthwith upon such issue or sale, the Exercise Price shall be reduced to
the price (calculated to the nearest cent) determined by dividing (i) an amount
equal to the sum of (A) the number of shares of Common Stock outstanding
immediately prior to such issue or sale multiplied by the Exercise Price, and
(B) the consideration, if any, received or receivable by the Company upon such
issue or sale by (ii) the total number of shares of Common Stock outstanding
immediately after such issue or sale.

                  (e) For the purposes of this Section 9, the following clauses
shall also be applicable:

                        (i) Record Date. In case the Company shall take a record
of the holders of its Common Stock for the purpose of entitling them (A) to
receive a dividend or other distribution payable in Common Stock or in
Convertible Securities, or (B) to subscribe for or purchase Common Stock or
Convertible Securities, then such record date shall be deemed to be the date of
the issue or sale of the shares of Common Stock deemed to have been issued or
sold upon the declaration of such dividend or the making of such other
distribution or the date of the granting of such right of subscription or
purchase, as the case may be.

                        (ii) Treasury Shares. The number of shares of Common
Stock outstanding at any given time shall not include shares owned or held by or
for the account of the Company, and the disposition of any such shares shall be
considered an issue or sale of Common Stock.

                  (f) All calculations under this Section 8 shall be made to the
nearest cent or the nearest 1/100th of a share, as the case may be.

                  (g) Whenever the Exercise Price is adjusted pursuant to
Section 9(c) above, the Holder, after receipt of the determination by the
Appraiser, shall have the right to select an additional appraiser (which shall
be a nationally recognized accounting firm), in which case the adjustment shall
be equal to


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the average of the adjustments recommended by each of the Appraiser and such
appraiser. The Holder shall promptly mail or cause to be mailed to the Company,
a notice setting forth the Exercise Price after such adjustment and setting
forth a brief statement of the facts requiring such adjustment. Such adjustment
shall become effective immediately after the record date mentioned above.

                  (h)   If:

                            (i)     the Company shall declare a dividend (or any
                                    other distribution) on its Common Stock; or

                           (ii)     the Company shall declare a special
                                    nonrecurring cash dividend on or a
                                    redemption of its Common Stock; or

                          (iii)     the Company shall authorize the granting to
                                    all holders of the Common Stock rights or
                                    warrants to subscribe for or purchase any
                                    shares of capital stock of any class or of
                                    any rights; or

                           (iv)     the approval of any stockholders of the
                                    Company shall be required in connection with
                                    any reclassification of the Common Stock of
                                    the Company, any consolidation or merger to
                                    which the Company is a party, any sale or
                                    transfer of all or substantially all of the
                                    assets of the Company, or any compulsory
                                    share exchange whereby the Common Stock is
                                    converted into other securities, cash or
                                    property; or

                            (v)     the Company shall authorize the voluntary
                                    dissolution, liquidation or winding up of
                                    the affairs of the Company,

then the Company shall cause to be mailed to each Holder at their last addresses
as they shall appear upon the Warrant Register, at least 30 calendar days prior
to the applicable record or effective date hereinafter specified, a notice
stating (x) the date on which a record is to be taken for the purpose of such
dividend, distribution, redemption, rights or warrants, or if a record is not to
be taken, the date as of which the holders of Common Stock of


                                      -8-
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record to be entitled to such dividend, distributions, redemption, rights or
warrants are to be determined or (y) the date on which such reclassification,
consolidation, merger, sale, transfer or share exchange is expected to become
effective or close, and the date as of which it is expected that holders of
Common Stock of record shall be entitled to exchange their shares of Common
Stock for securities, cash or other property deliverable upon such
reclassification, consolidation, merger, sale, transfer, share exchange,
dissolution, liquidation or winding up; provided, however, that the failure to
mail such notice or any defect therein or in the mailing thereof shall not
affect the validity of the corporate action required to be specified in such
notice.

            (j) Fractional Shares. The Company shall not be required to issue or
cause to be issued fractional Warrant Shares on the exercise of this Warrant.
The number of full Warrant Shares which shall be issuable upon the exercise of
this Warrant shall be computed on the basis of the aggregate number of Warrant
Shares purchasable on exercise of this Warrant so presented. If any fraction of
a Warrant Share would, except for the provisions of this Section 9, be issuable
on the exercise of this Warrant, the Company shall pay an amount in cash equal
to the Exercise Price multiplied by such fraction.

            (k) Notices. Any and all notices or other communications or
deliveries hereunder shall be in writing and shall be deemed given and effective
on the earliest of (i) the date of transmission, if such notice or communication
is delivered via facsimile at the facsimile telephone number specified in this
Section prior to 4:30 p.m. (New York time) on a business day, (ii) the business
day after the date of transmission, if such notice or communication is delivered
via facsimile at the facsimile telephone number specified in this Section later
than 4:30 p.m. (New York time) on any date and earlier than 11:59 p.m. (New York
time) on such date, (iii) the business day following the date of mailing, if
sent by nationally recognized overnight courier service, or (iv) upon actual
receipt by the party to whom such notice is required to be given. The addresses
for such communications shall be: (i) if to the Company, to CAYENNE SOFTWARE,
INC., 8 New England Executive Park, Burlington, MA 01803, Attention: Chief
Financial Officer, or to facsimile no. (617) 229-8124, or (ii) if to the Holder,
to the Holder at the address or facsimile number appearing on the Warrant
Register or such other address or facsimile number as the Holder may provide to
the Company in accordance with this Section 11.

            (l) Warrant Agent.


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                  (a) The Company shall serve as warrant agent under this
Warrant. Upon thirty (30) days' notice to the Holder, the Company may appoint a
new warrant agent.

                  (b) Any corporation into which the Company or any new warrant
agent may be merged or any corporation resulting from any consolidation to which
the Company or any new warrant agent shall be a party or any corporation to
which the Company or any new warrant agent transfers substantially all of its
corporate trust or shareholders services business shall be a successor warrant
agent under this Warrant without any further act. Any such successor warrant
agent shall promptly cause notice of its succession as warrant agent to be
mailed (by first class mail, postage prepaid) to the Holder at the Holder's last
address as shown on the Warrant Register.

            (m) Miscellaneous.

                  (a) This Warrant shall be binding on and inure to the benefit
of the parties hereto and their respective successors and permitted assigns.
This Warrant may be amended only in writing signed by the Company and the
Holder.

                  (b) Subject to Section 13(a), above, nothing in this Warrant
shall be construed to give to any person or corporation other than the Company
and the Holder any legal or equitable right, remedy or cause under this Warrant;
this Warrant shall be for the sole and exclusive benefit of the Company and the
Holder.

                  (c) This Warrant shall be governed by and construed and
enforced in accordance with the internal laws of the State of Delaware without
regard to the principles of conflicts of law thereof.

                  (d) The headings herein are for convenience only, do not
constitute a part of this Warrant and shall not be deemed to limit or affect any
of the provisions hereof.

                  (e) In case any one or more of the provisions of this Warrant
shall be invalid or unenforceable in any respect, the validity and
enforceability of the remaining terms and provisions of this Warrant shall not
in any way be affected or impaired thereby and the parties will attempt in good
faith to agree upon a valid and enforceable provision which shall be a
commercially reasonable substitute therefor, and upon so agreeing, shall
incorporate such substitute provision in this Warrant.


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                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK,
                             SIGNATURE PAGE FOLLOWS]


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            IN WITNESS WHEREOF, the Company has caused this Warrant to be duly
executed by its authorized officer as of the date first indicated above.


                                    CAYENNE SOFTWARE, INC.



                                    By:_________________________________________

                                    Name:_______________________________________

                                    Title:______________________________________


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                          FORM OF ELECTION TO PURCHASE

(To be executed by the Holder to exercise the right to purchase shares of Common
Stock under the foregoing Warrant)

To Cayenne Software, Inc.:

      In accordance with the Warrant enclosed with this Form of Election to
Purchase, the undersigned hereby irrevocably elects to purchase _____________
shares of Common Stock ("Common Stock"), $.01 par value per share, of Cayenne
Software, Inc. and encloses herewith $________ in cash, certified or official
bank check or checks, which sum represents the aggregate Exercise Price (as
defined in the Warrant) for the number of shares of Common Stock to which this
Form of Election to Purchase relates, together with any applicable taxes payable
by the undersigned pursuant to the Warrant.

      The undersigned requests that certificates for the shares of Common Stock
issuable upon this exercise be issued in the name of

                                          PLEASE INSERT SOCIAL SECURITY OR
                                          TAX IDENTIFICATION NUMBER

                                          ______________________________________

________________________________________________________________________________
                        (Please print name and address)

________________________________________________________________________________

________________________________________________________________________________

      If the number of shares of Common Stock issuable upon this exercise shall
not be all of the shares of Common Stock which the undersigned is entitled to
purchase in accordance with the enclosed Warrant, the undersigned requests that
a New Warrant (as defined in the Warrant) evidencing the right to purchase the
shares of Common Stock not issuable pursuant to the exercise evidenced hereby be
issued in the name of and delivered to:

________________________________________________________________________________
                        (Please print name and address)

________________________________________________________________________________

________________________________________________________________________________

Dated:      ____________, _____
            Name of Holder:


                                          (Print)_______________________________

                                          (By:)_________________________________
                              (Name:)

      (Title:)
                              (Signature must conform in all respects
                              to name of holder as specified on the
                              face of the Warrant)
   14
           [To be completed and signed only upon transfer of Warrant]

      FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
unto ________________________________ the right represented by the within
Warrant to purchase ____________ shares of Common Stock of Cayenne Software,
Inc. which the within Warrant relates and appoints ________________ attorney to
transfer said right on the books of Cayenne Software, Inc. with full power of
substitution in the premises.

Dated:

_______________, ____


                                        ________________________________________
                                        (Signature must conform in all respects
                                        to name of holder as specified on the
                                        face of the Warrant)


                                        ________________________________________
                                        Address of Transferee

                                        ________________________________________

                                        ________________________________________



In the presence of:


_________________________________