Document:

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                                                                    Exhibit 10.6
                                                                    ------------

                                    WARRANT

     to Purchase up to an Aggregate of _______ Convertible Preferred Shares
                           (Subject to Adjustment) of
                   R.T.S. Relational Technology Systems Ltd.
                             at U.S. $___ per share

                VOID AFTER 10:00 a.m. (prevailing Tel Aviv time)

                              on October 30, 2006

    THIS IS TO CERTIFY that the holder specified below ("Holder") is entitled to
purchase, subject to the provisions of this Warrant, from R.T.S. Relational
Technology Systems Ltd. (the "Company"), at any time on or after the date hereof
(the "Effective Date") and until October 30, 2006, an aggregate of up to ______
(subject to adjustment) fully and nonassessable Convertible Preferred Shares,
nominal value New Israeli Shekel ("NIS") 1.00 per share (the "Convertible
Preferred Shares"), of the Company at a price of US$___ per share or the NIS
equivalent thereof (the "Exercise Price").  In the event that all of the
outstanding Convertible Preferred Shares are converted into Ordinary Shares,
this Warrant shall be exercisable solely for such Ordinary Shares and any
references throughout this Warrant to shares of Convertible Preferred Shares
shall be deemed to refer to the Ordinary Shares into which the Convertible
Preferred Shares may be converted. The amount and kind of securities purchasable
pursuant to the rights granted hereunder and the Exercise Price for such
securities are subject to adjustment pursuant to the further provisions of this
Warrant.

1  EXERCISE OF WARRANT

   Subject to the provisions hereof, this Warrant may be exercised in whole
   or in part, at any time or from time to time on or after the Effective Date
   and until October 30, 2006. This Warrant shall be exercised by presentation
   and surrender hereof to the Company at the principal office of  the Company;
   accompanied by

   1.  a written notice of exercise and

   2.  payment to the Company, for the account of the Company, of the Exercise
       Price for the number of Ordinary Shares specified in such notice.

   The Exercise Price for the number of Ordinary Shares specified in the
   notice shall be payable in immediately available good funds, at the option
   of the Holder, in U.S. dollars or the NIS equivalent thereof, based on the
   Representative Rate of Exchange published by the Bank of Israel known as of
   the time of payment.
<PAGE>

                                      -2-

    Upon such presentation and surrender, the Company shall issue promptly to
    the Holder the Convertible Preferred Shares to which the Holder is entitled
    hereunder. In the event the Exercise Price has been paid in U.S. dollars,
    the certificate representing the Convertible Preferred Shares issued upon
    such exercise shall bear a stamp from an Israeli commercial bank confirming
    that the Convertible Preferred Shares  were purchased with foreign currency.
    In the event that the Warrant is exercised pursuant to the net exercise
    provisions below, the Company shall apply to the Bank of Israel, if
    necessary, in order to obtain such stamp.

    If this Warrant should be exercised in part only, the Company shall, upon
    surrender of this Warrant for cancellation, execute and deliver a new
    Warrant evidencing the rights of the Holder to purchase the balance of the
    Convertible Preferred Shares purchasable hereunder. Upon receipt by the
    Company of this Warrant, in proper form for exercise, the Holder shall be
    deemed to be the holder of record of the Convertible Preferred Shares
    issuable upon such exercise, notwithstanding that the share transfer books
    of the Company shall then be closed or that certificates representing such
    Convertible Preferred Shares shall not then be actually delivered to the
    Holder. The Company shall pay any and all expenses, any stamp duty and any
    other charges that may be payable in connection with the issuance of the
    Convertible Preferred Shares and the preparation and delivery of share
    certificates pursuant to this Paragraph 1 in the name of the Holder.

    No fractions of Convertible Preferred Shares shall be issued in connection
    with the exercise of this Warrant, and the number of Convertible Preferred
    Shares issued shall be rounded down to the nearest whole number.

    Notwithstanding the foregoing, in the event of (i) the initial public
    offering of the Company (the "IPO"), (ii) on or after the merger of the
    Company with or into another company or entity, in which the Company is not
    the surviving entity (a "Merger") or (iii) on or after the sale of all or
    substantially all of the assets of the Company (a "Sale") then, in lieu of
    exercising this Warrant as provided above, in whole or in part, the Holder
    may elect to receive simultaneously with the Closing of the IPO, or
    simultaneously with the closing of the Merger or Sale, by the surrender and
    cancellation of this Warrant or any such portion thereof to the Company,
    Convertible Preferred Shares equal to the value of the Warrant (or the
    portion thereof being canceled) by written notice of such election to the
    Company, at the principal office of the Company, in which event the Company
    shall issue to the Holder, for no additional consideration, that number of
    Convertible Preferred Shares computed using the following formula:

                Y(A - B)
        X  =  ------------
                    A

    X   equals the number of Convertible Preferred Shares to be issued to the
        Holder;
<PAGE>

                                      -3-

    Y   equals the number of Convertible Preferred Shares which would otherwise
        have been purchasable under this Warrant (or the portion thereof being
        canceled);

    B   equals the Exercise Price in effect at the time of exercise pursuant to
        this formula (as may have been or be adjusted pursuant to the terms of
        this Warrant); and

    A   shall equal the "Fair Value" of one share of the Company's Convertible
        Preferred Shares.  Fair Value shall mean in the event that this Warrant
        is exercised in accordance with the above formula (i) if in connection
        with an IPO, then the Fair Value shall equal the price (as sold to the
        public) of that number of the Company's Ordinary Shares into which one
        share of the Company's Preferred Shares is Convertible, or (ii) if in
        connection with a Merger or Sale, the value of such share(s) as
        determined for the purposes of the Merger or Sale, or (iii) if other
        than in connection with an IPO or a Merger or Sale and if a public
        market exists for the securities then subject to this Warrant and such
        securities are listed on a U.S. nationally recognized stock exchange or
        on the Nasdaq stock market, then the Fair Value shall equal the last
        sale or trading price of such securities as reported on such exchange or
        market, as applicable; provided, however, if no public market exists for
        the securities then the Fair Value shall be determined in good faith by
        the Board of Directors of the Company, but if such determination is
        challenged in good faith by the Holder, then as determined by an
        independent appraiser mutually satisfactory to the Company and the
        Holder, which determination shall be binding upon the parties.

2.  RESERVATION OF SHARES: PRESERVATION OF RIGHTS

    The Company hereby agrees that at all times it will maintain and reserve
    such number of authorized but unissued Ordinary Shares so that this Warrant
    may be exercised without additional authorization of Convertible Preferred
    Shares after giving effect to all other options, warrants, convertible
    securities and other rights to acquire Convertible Preferred Shares of the
    Company. In addition, the Company will maintain and reserve such number of
    authorized but unissued Ordinary Shares as will be sufficient to permit the
    conversion in full of all issued or issuable Convertible Preferred Shares.
    All shares of Convertible Preferred Shares (and Ordinary Shares issuable
    upon conversion thereof) issuable pursuant to the terms hereof, when issued
    upon exercise of this Warrant in accordance with the terms hereof shall be
    duly and validly issued and fully paid and nonassessable, not subject to
    preemptive rights and shall be free and clear of all liens, encumbrances,
    equities and claims. The Company further agrees that it will not, by charter
    amendment or through reorganization, consolidation, merger, dissolution or
    sale of assets, or by any other voluntary act, avoid or seek to avoid the
    observance or performance of any of the covenants, stipulations or
    conditions to be observed or performed hereunder by the Company.
<PAGE>

                                      -4-

3.  EXCHANGE OR LOSS OF WARRANT

    This Warrant is exchangeable, upon presentation and surrender hereof at the
    principal office of the Company, only in connection with a partial exercise
    hereof. The Company shall be under no obligation to issue replacement
    warrants for the aggregate number of shares covered hereby except as
    described herein. The term "Warrant" as used herein includes any Warrant or
    Warrants for which this Warrant may be exchanged. Upon receipt by the
    Company of evidence reasonably satisfactory to it of the loss, theft,
    destruction or mutilation of this Warrant, and (in the case of loss, theft
    or destruction) of reasonably satisfactory indemnification, and upon
    surrender and cancellation of this Warrant, if mutilated, the Company will
    execute and deliver a new Warrant of like terms, tenor and date.

4.  ADJUSTMENT

    The number of Convertible Preferred Shares (and the number of Ordinary
    Shares issuable upon conversion thereof) purchasable upon the exercise of
    this Warrant and the Exercise Price shall be subject to adjustment from time
    to time or upon exercise as provided in this paragraph 4.

    4.1  If, during the term of this Warrant, the Company shall distribute a
         stock dividend or shares of capital stock pursuant to a
         reclassification of its Convertible Preferred Shares to the holders of
         Convertible Preferred Shares (i.e., bonus shares), the number of
         Convertible Preferred Shares purchasable upon exercise of this Warrant
         shall be increased by multiplying such number of shares to be purchased
         under this Warrant by a fraction of which the denominator shall be the
         number of Convertible Preferred Shares outstanding at the close of
         business on the day immediately preceding the date of such distribution
         and the numerator shall be the sum of such number of shares and the
         total number of bonus shares, such increase to become effective
         immediately after the opening of business on the date following such
         distribution, and upon the happening of such an event the Exercise
         Price shall be adjusted appropriately.

    4.2  If, during the term of this Warrant, the outstanding Convertible
         Preferred Shares shall be subdivided into a greater number of
         Convertible Preferred Shares, the number of Convertible Preferred
         Shares purchasable upon exercise of this Warrant at the opening of
         business on the day following the day upon which such subdivision
         becomes effective shall be proportionately increased, and, conversely,
         if the outstanding Convertible Preferred Shares shall each be combined
         into a smaller number of Convertible Preferred Shares, the number of
         Convertible Preferred Shares purchasable upon exercise of this Warrant
         at the opening of business on the day following the day upon which such
         combination becomes effective shall be proportionately decreased, and
         in each such case the Exercise Price shall be adjusted appropriately.
<PAGE>

                                      -5-

   4.3  Reorganization, Reclassification, Merger, Consolidation or Disposition
        ----------------------------------------------------------------------
        of Assets
        ---------

        (a)   In case the Company shall reorganize its capital, reclassify its
              capital stock, consolidate or merge with or into another
              corporation or sell, transfer or otherwise dispose of all or
              substantially all of its property, assets or business to another
              corporation and pursuant to the terms of such reorganization,
              reclassification, merger, consolidation or disposition of assets,
              (i) shares of capital stock of the successor or acquiring
              corporation or of the Company (if it is the surviving corporation)
              or (ii) any cash, shares of stock or other securities or property
              of any nature whatsoever (including warrants or other subscription
              or purchase rights) in addition to or in lieu of capital stock of
              the successor or acquiring corporation ("Other Property") are to
              be received by or distributed to the holders of Convertible
              Preferred Shares of the Company who are holders immediately prior
              to such transaction, then the Holder shall have the right
              thereafter to receive, upon exercise of this Warrant, the number
              of shares of capital stock of the successor or acquiring
              corporation or of the Company, if it is the surviving corporation,
              and Other Property receivable upon or as a result of such
              reorganization, reclassification, merger, consolidation or
              disposition of assets by a holder of the number of shares of
              Convertible Preferred Shares for which this Warrant is exercisable
              immediately prior to such event.

        (b)   In case of any such reorganization, reclassification, merger,
              consolidation or disposition of assets, the successor or acquiring
              corporation shall expressly assume the due and punctual observance
              and performance of each and every covenant and condition of this
              Warrant to be performed and observed by the Company and all the
              obligations and liabilities hereunder, subject to such
              modifications as may be deemed appropriate (as determined by
              resolution of the Board of Directors of the Company) in order to
              provide for adjustments of shares of the Convertible Preferred
              Shares for which this Warrant is exercisable, which modifications
              shall be as nearly equivalent as practicable to the adjustments
              provided for in this Section 4.

        (c)   The provisions of this subsection 4.3 shall similarly apply to
              successive reorganizations, reclassifications, mergers,
              consolidations or disposition of assets.

   4.4  Other Dilutive Events
        ---------------------

        In case any event shall occur as to which the preceding subsections 4.1
        through 4.3 are not strictly applicable but as to which the failure to
        make any adjustment would not fairly protect the purchase rights
        represented by this Warrant in accordance with the essential intent and
        principles hereof
<PAGE>

                                      -6-

        then, in each such case, the Board of Directors of the Company shall, in
        good faith, determine what adjustments are necessary to preserve the
        purchase rights of the Holder represented by this Warrant. The Company
        will notify the Holder of any such adjustments.

5.  NOTICE OF CERTAIN EVENTS

    The holder of this Warrant shall be entitled to the same rights to receive
    notices of corporate actions as any holder of Convertible Preferred Shares
    as provided in the Company's Articles of Association or otherwise.
    Notwithstanding, in case at any time:

    5.1  There shall be any merger of the Company with, or any statutory
         exchange of the Company's securities with the securities of, or sale of
         all or substantially all of its assets to, another corporation; or

    5.2  There shall be a voluntary or involuntary dissolution, liquidation or
         winding up of the Company;

    then, in any one or more of such cases, the Company shall give written
    notice, by first class mail, postage prepaid, addressed to the Holder at the
    address of the Holder as shown on the books of the Company, of the date on
    which such merger, exchange, sale, dissolution, liquidation or winding up
    shall take place, as the case may be. Such notice shall also specify the
    date as of which the holders of Convertible Preferred Shares of record shall
    be entitled to exchange their Convertible Preferred Shares for securities or
    other property deliverable upon such merger, exchange, sale, dissolution,
    liquidation or winding up, as the case may be. Such written notice shall be
    given at least twenty (20) days prior to the action in question.

6.  NOTICE OF ADJUSTMENTS

    Whenever the number of Convertible Preferred Shares for which this Warrant
    is exercisable is adjusted as provided in paragraph 4 hereof or whenever the
    rate at which the Convertible Preferred Shares are convertible into Ordinary
    Shares is adjusted pursuant to the Company's Articles of Association, the
    Company shall promptly compute such adjustment and mail to the Holder at the
    last address provided to the Company in writing a certificate, signed by the
    principal financial office of the Company, setting forth the number of
    Convertible Preferred Shares (and the number of Ordinary Shares into which
    the Convertible Preferred Shares may be converted) for which this Warrant is
    exercisable and the exercise price as a result of such adjustment, a brief
    statement of the facts requiring such adjustment and the detailed
    computation thereof and when such adjustment has or will become effective.
<PAGE>

                                      -7-

7.  RIGHTS OF THE HOLDER

    7.1  Without limiting the foregoing or any remedies available to the
         Holder, the Holder will be entitled to specific performance of the
         obligations hereunder, and injunctive relief against actual or
         threatened violations of the obligations of any person subject to this
         Warrant.

    7.2  This Warrant shall not entitle the Holder to any voting rights or
         other rights as a shareholder of the Company whatsoever, except the
         rights expressed herein and no dividend or interest shall be payable or
         accrue in respect of this Warrant.

8.  REGISTRATION RIGHTS

    The Holder shall have the registration and other rights and be subject to
    the obligations, set forth in the Investors Rights Agreement, dated the date
    hereof, as it may be amended from time to time as provided therein, with
    respect to the Ordinary Shares issued or issuable upon conversion of the
    Convertible Preferred Shares issuable or issued upon the exercise of this
    Warrant.

9.  NOTICE GENERALLY

    Any notice, demand, request, consent, approval, declaration, delivery or
    communication hereunder to be made pursuant to the provisions of this
    Warrant shall be sufficiently given or made if in writing and shall be
    deemed to have been validly served, given or delivered (a) when sent after
    receipt of confirmation or answer back if sent by telex or telecopy or other
    similar facsimile transmission, (b) two (2) business days after deposit with
    a reputable international two (2) day courier with all charges prepaid or
    (c) when delivered if hand-delivered by messenger, all of which shall be
    properly addressed to the party to be notified and sent to the address or
    number indicated, to the Holder, or the holder of Convertible Preferred
    Shares (or the Ordinary Shares issuable upon conversion thereof) at its last
    known address appearing on the books of the Company maintained for such
    purpose, and to the Company at:

                    R.T.S. Relational Technology Systems, Ltd.
                    Science Based Industries Campus
                    P.O. Box 23052
                    Jerusalem 91230, Israel

    or at such other address as may be submitted by notice given as herein
    provided. The giving of any notice required hereunder may be waived in
    writing by the party entitled to receive such notice.
<PAGE>

                                      -8-

10. TERMINATION

    This Warrant and the rights conferred hereby shall terminate at the earlier
    of (a) the aforementioned time on October 30, 2006; or (b) the offering to
    the public of the shares of the Company.

11. LIMITATION ON TRANSFER

    This Warrant shall be transferable in whole or in part only to a subsidiary
    of the Holder.

12. GOVERNING LAW

    This Warrant shall be governed by, and construed in accordance with, the
    laws of the State of Israel, without giving effect to the rules respecting
    conflict of law, and the parties hereto irrevocably submit to the exclusive
    jurisdiction of the Courts of Israel in respect of any dispute or matter
    arising out of or connected with this Warrant.

    DATED:  October 30, 1996                       R.T.S. RELATIONAL
                                                   TECHNOLOGY SYSTEMS LTD.

                                             By:       ______________
                                             Name:     ______________
                                             Title:    ______________

    Agreed to and accepted:
    _________________________________________
                Name of Holder

    By:         _____________________________
    Name:       _____________________________
    Title:      _____________________________

    Address:    _____________________________
                _____________________________<PAGE>

                                      -1-

                                                               Exhibit 10.7
                                                               ------------

                                    WARRANT

to Purchase up to an Aggregate of ______ Non Voting Convertible Preferred B
                                  Shares
                          (Subject to Adjustment) of
                   R.T.S. Relational Technology Systems Ltd.
                             at U.S. $30 per share

               VOID AFTER 10:00 a.m. (prevailing Tel Aviv time)

                              on October 30, 2006

    THIS IS TO CERTIFY that the holder specified below ("Holder") is entitled to
purchase, subject to the provisions of this Warrant, from R.T.S. Relational
Technology Systems Ltd. (the "Company"), at any time on or after the date hereof
(the "Effective Date") and until October 30, 2006, an aggregate of up to ______
(subject to adjustment) fully and nonassessable Non Voting Convertible Preferred
B Shares, nominal value New Israeli Shekel ("NIS") 1.00 per share (the
"Convertible Preferred B Shares"), of the Company at a price of US$30 per share
or the NIS equivalent thereof (the "Exercise Price"). In the event that all of
the outstanding Convertible Preferred B Shares are converted into Ordinary
Shares, this Warrant shall be exercisable solely for such Ordinary Shares and
any references throughout this Warrant to shares of Convertible Preferred B
Shares shall be deemed to refer to the Ordinary Shares into which the
Convertible Preferred B Shares may be converted. The amount and kind of
securities purchasable pursuant to the rights granted hereunder and the Exercise
Price for such securities are subject to adjustment pursuant to the further
provisions of this Warrant.

1.  EXERCISE OF WARRANT

    Subject to the provisions hereof, this Warrant may be exercised in whole or
    in part, at any time or from time to time on or after the Effective Date and
    until October 30, 2006. This Warrant shall be exercised by presentation and
    surrender hereof to the Company at the principal office of the Company;
    accompanied by

    1.  a written notice of exercise and

    2.  payment to the Company, for the account of the Company, of the Exercise
        Price for the number of Ordinary Shares specified in such notice.

    The Exercise Price for the number of Ordinary Shares specified in the notice
    shall be payable in immediately available good funds, at the option of the
    Holder, in U.S. dollars or the NIS equivalent thereof, based on the
    Representative Rate of Exchange published by the Bank of Israel known as of
    the time of payment.
<PAGE>

                                      -2-

    Upon such presentation and surrender, the Company shall issue promptly to
    the Holder the Convertible Preferred B Shares to which the Holder is
    entitled hereunder. In the event the Exercise Price has been paid in U.S.
    dollars, the certificate representing the Convertible Preferred B Shares
    issued upon such exercise shall bear a stamp from an Israeli commercial bank
    confirming that the Convertible Preferred B Shares were purchased with
    foreign currency. In the event that the Warrant is exercised pursuant to the
    net exercise provisions below, the Company shall apply to the Bank of
    Israel, if necessary, in order to obtain such stamp.

    If this Warrant should be exercised in part only, the Company shall, upon
    surrender of this Warrant for cancellation, execute and deliver a new
    Warrant evidencing the rights of the Holder to purchase the balance of the
    Convertible Preferred B Shares purchasable hereunder. Upon receipt by the
    Company of this Warrant, in proper form for exercise, the Holder shall be
    deemed to be the holder of record of the Convertible Preferred B Shares
    issuable upon such exercise, notwithstanding that the share transfer books
    of the Company shall then be closed or that certificates representing such
    Convertible Preferred B Shares shall not then be actually delivered to the
    Holder. The Company shall pay any and all expenses, any stamp duty and any
    other charges that may be payable in connection with the issuance of the
    Convertible Preferred B Shares and the preparation and delivery of share
    certificates pursuant to this Paragraph 1 in the name of the Holder.

    No fractions of Convertible Preferred B Shares shall be issued in connection
    with the exercise of this Warrant, and the number of Convertible Preferred B
    Shares issued shall be rounded down to the nearest whole number.

    Notwithstanding the foregoing, in the event of (i) the initial public
    offering of the Company (the "IPO"), (ii) on or after the merger of the
    Company with or into another company or entity, in which the Company is not
    the surviving entity (a "Merger") or (iii) on or after the sale of all or
    substantially all of the assets of the Company (a "Sale") then, in lieu of
    exercising this Warrant as provided above, in whole or in part, the Holder
    may elect to receive simultaneously with the Closing of the IPO, or
    simultaneously with the closing of the Merger or Sale, by the surrender and
    cancellation of this Warrant or any such portion thereof to the Company,
    Convertible Preferred B Shares equal to the value of the Warrant (or the
    portion thereof being canceled) by written notice of such election to the
    Company, at the principal office of the Company, in which event the Company
    shall issue to the Holder, for no additional consideration, that number of
    Convertible Preferred B Shares computed using the following formula:

                  Y(A - B)
        X  =  -----------------
                      A

    X   equals the number of Convertible Preferred B Shares to be issued to the
        Holder;
<PAGE>

                                      -3-

    Y   equals the number of Convertible Preferred B Shares which would
        otherwise have been purchasable under this Warrant (or the portion
        thereof being canceled);

    B   equals the Exercise Price in effect at the time of exercise pursuant to
        this formula (as may have been or be adjusted pursuant to the terms of
        this Warrant); and

    A   shall equal the "Fair Value" of one share of the Company's Convertible
        Preferred B Shares. Fair Value shall mean in the event that this Warrant
        is exercised in accordance with the above formula (i) if in connection
        with an IPO, then the Fair Value shall equal the price (as sold to the
        public) of that number of the Company's Ordinary Shares into which one
        share of the Company's Preferred B Shares is Convertible, or (ii) if in
        connection with a Merger or Sale, the value of such share(s) as
        determined for the purposes of the Merger or Sale, or (iii) if other
        than in connection with an IPO or a Merger or Sale and if a public
        market exists for the securities then subject to this Warrant and such
        securities are listed on a U.S. nationally recognized stock exchange or
        on the Nasdaq stock market, then the Fair Value shall equal the last
        sale or trading price of such securities as reported on such exchange or
        market, as applicable; provided, however, if no public market exists for
        the securities then the Fair Value shall be determined in good faith by
        the Board of Directors of the Company, but if such determination is
        challenged in good faith by the Holder, then as determined by an
        independent appraiser mutually satisfactory to the Company and the
        Holder, which determination shall be binding upon the parties.

2.  RESERVATION OF SHARES: PRESERVATION OF RIGHTS

    The Company hereby agrees that at all times it will maintain and reserve
    such number of authorized but unissued Ordinary Shares so that this Warrant
    may be exercised without additional authorization of Convertible Preferred B
    Shares after giving effect to all other options, warrants, convertible
    securities and other rights to acquire Convertible Preferred B Shares of the
    Company. In addition, the Company will maintain and reserve such number of
    authorized but unissued Ordinary Shares as will be sufficient to permit the
    conversion in full of all issued or issuable Convertible Preferred B Shares.
    All shares of Convertible Preferred B Shares (and Ordinary Shares issuable
    upon conversion thereof) issuable pursuant to the terms hereof, when issued
    upon exercise of this Warrant in accordance with the terms hereof shall be
    duly and validly issued and fully paid and nonassessable, not subject to
    preemptive rights and shall be free and clear of all liens, encumbrances,
    equities and claims. The Company further agrees that it will not, by charter
    amendment or through reorganization, consolidation, merger, dissolution or
    sale of assets, or by any other voluntary act, avoid or seek to avoid the
    observance or performance of any of the covenants, stipulations or
    conditions to be observed or performed hereunder by the Company.
<PAGE>

                                      -4-

3.  EXCHANGE OR LOSS OF WARRANT

    This Warrant is exchangeable, upon presentation and surrender hereof at the
    principal office of the Company, only in connection with a partial exercise
    hereof. The Company shall be under no obligation to issue replacement
    warrants for the aggregate number of shares covered hereby except as
    described herein. The term "Warrant" as used herein includes any Warrant or
    Warrants for which this Warrant may be exchanged. Upon receipt by the
    Company of evidence reasonably satisfactory to it of the loss, theft,
    destruction or mutilation of this Warrant, and (in the case of loss, theft
    or destruction) of reasonably satisfactory indemnification, and upon
    surrender and cancellation of this Warrant, if mutilated, the Company will
    execute and deliver a new Warrant of like terms, tenor and date.

4.  ADJUSTMENT

    The number of Convertible Preferred B Shares (and the number of Ordinary
    Shares issuable upon conversion thereof) purchasable upon the exercise of
    this Warrant and the Exercise Price shall be subject to adjustment from time
    to time or upon exercise as provided in this paragraph 4.

    4.1.  If, during the term of this Warrant, the Company shall distribute a
          stock dividend or shares of capital stock pursuant to a
          reclassification of its Convertible Preferred B Shares to the holders
          of Convertible Preferred B Shares (i.e., bonus shares), the number of
          Convertible Preferred B Shares purchasable upon exercise of this
          Warrant shall be increased by multiplying such number of shares to be
          purchased under this Warrant by a fraction of which the denominator
          shall be the number of Convertible Preferred B Shares outstanding at
          the close of business on the day immediately preceding the date of
          such distribution and the numerator shall be the sum of such number of
          shares and the total number of bonus shares, such increase to become
          effective immediately after the opening of business on the date
          following such distribution, and upon the happening of such an event
          the Exercise Price shall be adjusted appropriately.

    4.2.  If, during the term of this Warrant, the outstanding Convertible
          Preferred B Shares shall be subdivided into a greater number of
          Convertible Preferred B Shares, the number of Convertible Preferred B
          Shares purchasable upon exercise of this Warrant at the opening of
          business on the day following the day upon which such subdivision
          becomes effective shall be proportionately increased, and, conversely,
          if the outstanding Convertible Preferred B Shares shall each be
          combined into a smaller number of Convertible Preferred B Shares, the
          number of Convertible Preferred B Shares purchasable upon exercise of
          this Warrant at the opening of business on the day following the day
          upon which such combination becomes effective shall be proportionately
          decreased, and in each such case the Exercise Price shall be adjusted
          appropriately.
<PAGE>

                                      -5-

    4.3.  Reorganization, Reclassification, Merger, Consolidation or Disposition
          ----------------------------------------------------------------------
          of Assets
          ---------

          (a)   In case the Company shall reorganize its capital, reclassify its
                capital stock, consolidate or merge with or into another
                corporation or sell, transfer or otherwise dispose of all or
                substantially all of its property, assets or business to another
                corporation and pursuant to the terms of such reorganization,
                reclassification, merger, consolidation or disposition of
                assets, (i) shares of capital stock of the successor or
                acquiring corporation or of the Company (if it is the surviving
                corporation) or (ii) any cash, shares of stock or other
                securities or property of any nature whatsoever (including
                warrants or other subscription or purchase rights) in addition
                to or in lieu of capital stock of the successor or acquiring
                corporation ("Other Property") are to be received by or
                distributed to the holders of Convertible Preferred B Shares of
                the Company who are holders immediately prior to such
                transaction, then the Holder shall have the right thereafter to
                receive, upon exercise of this Warrant, the number of shares of
                capital stock of the successor or acquiring corporation or of
                the Company, if it is the surviving corporation, and Other
                Property receivable upon or as a result of such reorganization,
                reclassification, merger, consolidation or disposition of assets
                by a holder of the number of shares of Convertible Preferred B
                Shares for which this Warrant is exercisable immediately prior
                to such event.

          (b)  In case of any such reorganization, reclassification, merger,
                consolidation or disposition of assets, the successor or
                acquiring corporation shall expressly assume the due and
                punctual observance and performance of each and every covenant
                and condition of this Warrant to be performed and observed by
                the Company and all the obligations and liabilities hereunder,
                subject to such modifications as may be deemed appropriate (as
                determined by resolution of the Board of Directors of the
                Company) in order to provide for adjustments of shares of the
                Convertible Preferred B Shares for which this Warrant is
                exercisable, which modifications shall be as nearly equivalent
                as practicable to the adjustments provided for in this Section
                4.

          (c)   The provisions of this subsection 4.3 shall similarly apply to
                successive reorganizations, reclassifications, mergers,
                consolidations or disposition of assets.

    4.4.  Other Dilutive Events
          ---------------------

          In case any event shall occur as to which the preceding subsections
          4.1 through 4.3 are not strictly applicable but as to which the
          failure to make any adjustment would not fairly protect the purchase
          rights represented by
<PAGE>

                                      -6-

        this Warrant in accordance with the essential intent and principles
        hereof then, in each such case, the Board of Directors of the Company
        shall, in good faith, determine what adjustments are necessary to
        preserve the purchase rights of the Holder represented by this
        Warrant. The Company will notify the Holder of any such adjustments.

5.  NOTICE OF CERTAIN EVENTS

    The holder of this Warrant shall be entitled to the same rights to receive
    notices of corporate actions as any holder of Convertible Preferred B Shares
    as provided in the Company's Articles of Association or otherwise.
    Notwithstanding, in case at any time:

    5.1.  There shall be any merger of the Company with, or any statutory
          exchange of the Company's securities with the securities of, or sale
          of all or substantially all of its assets to, another corporation; or

    5.2.  There shall be a voluntary or involuntary dissolution, liquidation or
          winding up of the Company;

    then, in any one or more of such cases, the Company shall give written
    notice, by first class mail, postage prepaid, addressed to the Holder at the
    address of the Holder as shown on the books of the Company, of the date on
    which such merger, exchange, sale, dissolution, liquidation or winding up
    shall take place, as the case may be. Such notice shall also specify the
    date as of which the holders of Convertible Preferred B Shares of record
    shall be entitled to exchange their Convertible Preferred B Shares for
    securities or other property deliverable upon such merger, exchange, sale,
    dissolution, liquidation or winding up, as the case may be. Such written
    notice shall be given at least twenty (20) days prior to the action in
    question.

6.  NOTICE OF ADJUSTMENTS

    Whenever the number of Convertible Preferred B Shares for which this Warrant
    is exercisable is adjusted as provided in paragraph 4 hereof or whenever the
    rate at which the Convertible Preferred B Shares are convertible into
    Ordinary Shares is adjusted pursuant to the Company's Articles of
    Association, the Company shall promptly compute such adjustment and mail to
    the Holder at the last address provided to the Company in writing a
    certificate, signed by the principal financial office of the Company,
    setting forth the number of Convertible Preferred B Shares (and the number
    of Ordinary Shares into which the Convertible Preferred B Shares may be
    converted) for which this Warrant is exercisable and the exercise price as a
    result of such adjustment, a brief statement of the facts requiring such
    adjustment and the detailed computation thereof and when such adjustment has
    or will become effective.
<PAGE>

                                      -7-

7.  RIGHTS OF THE HOLDER

    7.1   Without limiting the foregoing or any remedies available to the
          Holder, the Holder will be entitled to specific performance of the
          obligations hereunder, and injunctive relief against actual or
          threatened violations of the obligations of any person subject to this
          Warrant.

    7.2   This Warrant shall not entitle the Holder to any voting rights or
          other rights as a shareholder of the Company whatsoever, except the
          rights expressed herein and no dividend or interest shall be payable
          or accrue in respect of this Warrant.

8.  REGISTRATION RIGHTS

    The Holder shall have the registration and other rights and be subject to
    the obligations, set forth in the Investors Rights Agreement, dated the date
    hereof, as it may be amended from time to time as provided therein, with
    respect to the Ordinary Shares issued or issuable upon conversion of the
    Convertible Preferred B Shares issuable or issued upon the exercise of this
    Warrant.

9.  NOTICE GENERALLY

    Any notice, demand, request, consent, approval, declaration, delivery or
    communication hereunder to be made pursuant to the provisions of this
    Warrant shall be sufficiently given or made if in writing and shall be
    deemed to have been validly served, given or delivered (a) when sent after
    receipt of confirmation or answer back if sent by telex or telecopy or other
    similar facsimile transmission, (b) two (2) business days after deposit with
    a reputable international two (2) day courier with all charges prepaid or
    (c) when delivered if hand-delivered by messenger, all of which shall be
    properly addressed to the party to be notified and sent to the address or
    number indicated, to the Holder, or the holder of Convertible Preferred B
    Shares (or the Ordinary Shares issuable upon conversion thereof) at its last
    known address appearing on the books of the Company maintained for such
    purpose, and to the Company at:

                  R.T.S. Relational Technology Systems, Ltd.
                  Science Based Industries Campus
                  P.O. Box 23052
                  Jerusalem 91230, Israel

    or at such other address as may be submitted by notice given as herein
    provided. The giving of any notice required hereunder may be waived in
    writing by the party entitled to receive such notice.
<PAGE>

                                      -8-

10. TERMINATION

    This Warrant and the rights conferred hereby shall terminate at the earlier
    of (a) the aforementioned time on October 30, 2006; or (b) the offering to
    the public of the shares of the Company.

11. LIMITATION ON TRANSFER

    This Warrant shall be transferable in whole or in part only to a subsidiary
    of the Holder.

12. GOVERNING LAW

    This Warrant shall be governed by, and construed in accordance with, the
    laws of the State of Israel, without giving effect to the rules respecting
    conflict of law, and the parties hereto irrevocably submit to the exclusive
    jurisdiction of the Courts of Israel in respect of any dispute or matter
    arising out of or connected with this Warrant.

    DATED:  October 30, 1996                       R.T.S. RELATIONAL
                                                   TECHNOLOGY SYSTEMS LTD.

                                         By:           ---------------
                                         Name:         ---------------
                                         Title:        ---------------

    Agreed to and accepted:
    _____________________________
                Name of Holder

    By:         ---------------
    Name:       ---------------
    Title:      ---------------

    Address:    ---------------

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