FindLaw - Shareholders Agreement - Softbank Corp., Softbank E-Commerce Corp., Ariba Inc. and Nihon Ariba K.K.
                             SHAREHOLDERS AGREEMENT

                                  BY AND AMONG

                                 SOFTBANK CORP.

                            SOFTBANK E-COMMERCE CORP.

                                   ARIBA, INC.

                                       AND

                                NIHON ARIBA K.K.

                                OCTOBER 19, 2000

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



<PAGE>

                                TABLE OF CONTENTS


<TABLE>
<CAPTION>
                                                                        Page No.
<S>                                                                     <C>

1.  Definitions................................................................1

2.  The Company................................................................5

3.  Operation of the Company...................................................5

4.  Board......................................................................5

5.  Representative Director; Key Officers......................................6

6.  Statutory Auditors.........................................................7

7.  Shareholders' Meetings.....................................................7

8.  Financial Statements and Accounting Records................................7

9.  Right Of Inspection........................................................7

10. Softbank Rights............................................................7

11. Company Interests..........................................................8

12. Annual Business Plan.......................................................8

13. Transfer Restrictions......................................................8

14. Market Stand-Off" Agreement...............................................10

15. Exclusivity...............................................................10

16. Co-Sale Rights............................................................11

17. Additional Capital........................................................12

18. Right of First Offer......................................................12

19. IPO Commitment............................................................14

20. Certain Breaches..........................................................14

21. Modification of Transaction Agreements....................................14

22. Representations and Warranties of SOFTBANK and SOFTBANK Parent............15

23. Representations and Warranties of Ariba...................................17
</TABLE>

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



                                       i
<PAGE>

<TABLE>
<S>                                                                     <C>
24.  Term and Termination.....................................................18
           24.1  Term.........................................................18
           24.2  Termination..................................................18
           24.3  Continuing Liability.........................................19

25.  Incidental and Consequential Damages.....................................19

26.  Miscellaneous............................................................19
           26.1  Governing Law; Dispute Resolution............................19
           26.2  Notices and Other Communications.............................20
           26.3  Language.....................................................21
           26.4  Severability.................................................21
           26.5  References; Subject Headings.................................22
           26.6  Further Assurances...........................................22
           26.7  Expenses.....................................................22
           26.8  No Waiver....................................................22
           26.9  Entire Agreement; Amendments.................................22
           26.10 Assignment...................................................22
           26.11 No Agency....................................................23
           26.12 No Beneficiaries.............................................23
           26.13 Counterparts.................................................23
</TABLE>

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



                                       ii
<PAGE>

         This Shareholders Agreement (this "AGREEMENT") is made as of October 
19, 2000, by and among Nihon Ariba K.K., a Japanese corporation (the 
"COMPANY"), Ariba, Inc., a Delaware corporation ("ARIBA"), SOFTBANK Corp., a 
Japanese corporation ("SOFTBANK PARENT"), and SOFTBANK E-Commerce Corp., a 
Japanese corporation and direct wholly owned subsidiary of SOFTBANK Parent 
("SOFTBANK"). The Company, Ariba, SOFTBANK Parent and SOFTBANK are hereunder 
also referred to collectively as the "PARTIES" and individually as a "PARTY".

                                    RECITALS

         A.       Ariba is a leading provider of electronic commerce products 
and services.

         B.       Ariba has formed the Company to provide electronic commerce 
products and services generally provided by Ariba to Persons whose primary 
place of business is located in Japan.

         C.       SOFTBANK Parent and SOFTBANK are leading providers of 
information and distribution services in Japan and worldwide as 
infrastructure for the digital information industry.

         D.       SOFTBANK Parent and SOFTBANK wish to invest in and form a 
strategic relationship with the Company.

         NOW THEREFORE, for valuable consideration, the receipt and adequacy 
of which are hereby acknowledged, the Parties hereby agree as follows:

                                    AGREEMENT

         1.       DEFINITIONS.

                  1.1      "[*]" shall mean a Person, of which securities 
representing at least [*] of the ordinary voting power is or, in the case of 
a partnership, at least [*] of the general partnership interests are, 
directly or indirectly owned, controlled or held by the Party on such date.

                  1.2      "[*]" shall mean a Person that directly or 
indirectly owns, controls, or holds securities representing at least [*] of 
the ordinary voting power or, in the case of a partnership, at least [*] of 
the general partnership interests of the Party on such date.

                  1.3      "AFFILIATE" of a Person means any Person that is 
controlled by, controls, or is under common control with the first Person, in 
each case for so long as such control continues; PROVIDED, HOWEVER, that 
Affiliates of any Person shall include Persons in which the first Person 
owns, directly or indirectly, shares representing at least [*] of the voting 
power represented by such Affiliates' outstanding shares, regardless of 
whether such control actually exists. For purposes of this definition, 
"CONTROL" shall mean the possession, directly or indirectly, of power to 
direct or cause the direction of management or policies of a 


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

<PAGE>

Person (whether through ownership of securities or other ownership interests, 
by contract or otherwise).

                  1.4      "ANNUAL BUSINESS PLAN" means the Company's annual 
business plan, as approved by the Board each year for the Company's next 
succeeding year including, among other things, (i) a budget for the upcoming 
fiscal year for anticipated revenues and expenses of the Company, (ii) an 
expenditure budget, (iii) a cash-flow forecast and (iv) the [*].

                  1.5      "ARIBA" is defined in the preambles of this 
Agreement.

                  1.6      "ARIBA COMPANY INTEREST" means the Company 
Interest of Ariba.

                  1.7      "ARIBA INVESTOR" means Ariba and each Person that 
is an Affiliate of Ariba to whom Securities owned by Ariba at the close of 
business on the Effective Date and subsequently acquired by Ariba pursuant to 
Section 11 or 18 of this Agreement have been Transferred pursuant to this 
Agreement.

                  1.8      "ARIBA NON-DISCLOSURE AGREEMENT" means the 
Non-Disclosure Agreement by and between Ariba, SOFTBANK Parent and SOFTBANK 
dated October 19, 2000.

                  1.9      "ARTICLES" means the articles of incorporation of 
the Company in the form of attached EXHIBIT 2.1 to the Stock Purchase 
Agreement, as the same may be amended from time to time in accordance with 
this Agreement and the Commercial Code.

                  1.10     "BOARD" means the board of directors of the 
Company.

                  1.11     "BUSINESS" generally means [*] and (iii) any 
business ancillary thereto.

                  1.12     "BUSINESS DAY" means a day on which commercial 
banks in the United States and Japan are generally open to conduct their 
regular banking business.

                  1.13     "COMPANY" is defined in the preambles of this 
Agreement.

                  1.14     "CHIEF EXECUTIVE OFFICER" means the Chief 
Executive Officer of the Company.

                  1.15     "CO-SALE SHAREHOLDER" is defined in Section 16(a).

                  1.16     "COMMERCIAL CODE" means the Commercial Code of 
Japan, as amended and in effect from time to time.

                  1.17     "COMMITTEE" is defined in Section 18(b).


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       2
<PAGE>

                  1.18     "COMMON STOCK" means common stock of the Company 
as authorized by the Articles.

                  1.19     "COMPANY INTEREST" shall mean, for a Party, the 
percentage interest represented by the number of Securities then held by such 
Party (assuming that such Party has not Transferred any Securities) divided 
by the number of then outstanding Fully Diluted Securities.

                  1.20     "[*]" is defined in Section 21(a).

                  1.21     "DIRECTOR" means a member of the Board.

                  1.22     "EFFECTIVE DATE" means the Closing Date (as 
defined in the Stock Purchase Agreement).

                  1.23     "FULLY DILUTED SECURITIES" means the number of 
Securities outstanding on a fully diluted basis after (i) giving effect to 
the exchange, exercise and conversion of all outstanding exchangeable, 
exercisable and convertible Securities and (ii) including all shares of 
Common Stock reserved and available for the grant of options and or stock 
purchase rights to employees, officers, directors and consultants of the 
Company that are not subject to outstanding options.

                  1.24     "INVESTOR" means each [*] and each [*].

                  1.25     "IPO" is defined in Section 18(a).

                  1.26     "KEY OFFICERS" means those Company officers who 
are in management positions reporting directly to the Chief Executive Officer.

                  1.27     "LICENSE AGREEMENT" means the License Agreement 
entered into between Ariba and the Company in the form [*], as amended from 
time to time.

                  1.28     "[*]" is defined in Section 15(a).

                  1.29     "LITIGATION COMMITTEE" is defined in Section 20.

                  1.30     "MEETING NOTICE" is defined in Section 4(c).

                  1.31     "MODIFICATION EVENT" means the occurrence of the 
events specified in Section 21(c).

                  1.32     "NOTICE" is defined in Section 18(b).

                  1.33     "[*]" is defined in Section 16(a).

                  1.34     "OFFERED SECURITIES" is defined in Section 18(b).


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       3
<PAGE>

                  1.35     "PARTY" and "PARTIES" are defined in the preamble 
of this Agreement.

                  1.36     "PERCENTAGE INTEREST" is defined in Section 15(b).

                  1.37     "PERFORMANCE CRITERIA" is defined in Section 21(d).

                  1.38     "PERSON" means a natural individual, partnership, 
firm, corporation, or other entity or form of business association.

                  1.39     "RELATED PARTY TRANSACTION" is defined in Exhibit 
4(d).

                  1.40     "REPRESENTATIVE DIRECTOR" means a representative 
director of the Company with the powers and duties specified for a 
representative director of a corporation in the Commercial Code or the 
Articles.

                  1.41     "[*]" is defined in Section 7.1 of the Stock 
Purchase Agreement.

                  1.42     "SCHEDULE" is defined in Section 15(a).

                  1.43     "SECURITIES" means all outstanding shares of 
Common Stock and any other equity securities of the Company or instruments 
exercisable or exchangeable for or convertible into Common Stock or other 
equity securities of the Company.

                  1.44     "SOFTBANK" is defined in the preambles of this 
Agreement.

                  1.45     "SOFTBANK COMPANY INTEREST" means the sum of the 
Company Interests of SOFTBANK and SOFTBANK Parent.

                  1.46     "SOFTBANK INVESTOR" means SOFTBANK, SOFTBANK 
Parent and each Person that is an Affiliate of SOFTBANK Parent to whom 
Securities acquired by SOFTBANK and SOFTBANK Parent on the Effective Date 
pursuant to the Stock Purchase Agreement and subsequently acquired by 
SOFTBANK and SOFTBANK Parent pursuant to Section 11 or 18 of this Agreement 
have been Transferred pursuant to this Agreement.

                  1.47     "SOFTBANK PARENT" is defined in the preambles of 
this Agreement.

                  1.48     "SPECIAL EXCEPTIONS LAW" means the law pertaining 
to special exceptions to the Commercial Code concerning auditors of companies 
(Kabushiki Kaisha).

                  1.49     "STATUTORY AUDITOR" means a statutory auditor 
(Kansa-yaku) of the Company with powers and duties as specified in the 
Commercial Code.

                  1.50     "STOCK PURCHASE AGREEMENT" means the Stock 
Purchase Agreement dated as of October 19, 2000 among the Company, Ariba, 
SOFTBANK Parent and SOFTBANK.


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       4
<PAGE>

                  1.51     "SUBJECT AFFILIATE" is defined in Section 15(a).

                  1.52     "TERM" is defined in Section 24.1.

                  1.53     "TRANSACTION AGREEMENTS" is defined in the Stock 
Purchase Agreement.

                  1.54     "TRANSFER" is defined in Section 13(a).

         2.       THE COMPANY. The Parties hereby acknowledge that the 
purpose of the Company shall be to establish and develop the Business.

         3.       OPERATION OF THE COMPANY. Each Party agrees to take all 
actions necessary to ensure that the Company shall be operated in accordance 
with the terms of this Agreement and the other Transaction Agreements, 
including, without limitation, to vote all Securities held by it (and to 
cause all Securities held by any of its Affiliates and permitted transferees 
under Section 13 to be voted) to effect the terms hereof.

         4.       BOARD.

                           (a)      BOARD OF DIRECTORS. The Company will be 
managed by the Board in accordance with the terms of this Agreement and 
applicable law. The Board shall consist of [*] Directors, [*] of whom shall 
be nominated by [*] and [*] of whom shall be nominated by [*]. One of the 
Directors nominated by [*] shall be the [*]. If the [*] at any time decreases 
to less than [*], the Parties shall upon written notice from [*] cause the 
Board constituency to be adjusted so that only [*] nominated by [*] within 
thirty (30) days of such written notice. If the [*] at any time decreases to 
less than [*], the Parties shall upon written notice from [*] cause the Board 
constituency to be adjusted so that [*] nominated by [*], within thirty (30) 
Business Days of such written notice, unless the [*] shall continue to hold 
at least [*] of the Securities acquired by the [*] pursuant to the Stock 
Purchase Agreement and pursuant to Sections 11 and 18 of this Agreement.

                           (b)      REMOVAL; REAPPOINTMENT OF DIRECTORS. Any 
Director may be removed for cause in accordance with applicable law. In 
addition, each Party having the right to appoint a Director pursuant to this 
Section 4 shall also have the right, in its sole discretion, to remove such 
Director at any time by a written notice to the Company and the other Party, 
in which event the Party which nominated the Director in question shall cause 
such Director to deliver a written resignation to the Company. In the case of 
a vacancy in the office of a Director for any reason (including removal 
pursuant to the preceding sentence), the vacancy shall be filled by the Party 
that nominated or has the right to nominate the Director in question, subject 
to obtaining the approval of a majority of the remaining Directors.

                           (c)      BOARD MEETINGS. Each Director shall have 
the authority to convene Board meetings, including the authority to specify 
the time and place of such meetings (with video conference or any other 
legally permitted means of meeting under the Commercial Code to be permitted 
at the request of any Director); PROVIDED, HOWEVER, that (i) the Board shall 


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       5
<PAGE>

meet at least once during each calendar quarter and (ii) written notice of 
each Board meeting (a "MEETING NOTICE") shall be given not less than ten (10) 
Business Days in advance of the meeting date (which ten (10) Business Day 
period may be shortened if each Director either (A) grants a written waiver 
of notice of such meeting or (B) actually attends such meeting, without 
objection). All Meeting Notices shall include a proposed agenda listing the 
items to be discussed at such Board meeting. Board meetings shall be 
conducted in the English language (with Japanese interpretation) and minutes 
of such meetings shall be prepared by the Company in English and Japanese and 
distributed to each Director promptly following a meeting. In the event of 
conflict or controversy between versions, the English version of the minutes 
shall control. Proposals or reports brought before any Board or shareholders' 
meeting for information or action (including without limitation the Company's 
annual and semi-annual financial statements) shall be prepared in English and 
Japanese. In the event of conflict or controversy, the English version 
thereof shall control. Any and all reasonable travel costs (including without 
limitation business class air travel) and expenses incurred for purposes of 
attendance by a Party's Directors at Board meetings held outside the country 
where the Party's corporate headquarters is located shall be reimbursed by 
the Company.

                           (d)      BOARD QUORUM, RESOLUTIONS. A quorum shall 
be deemed to exist for purposes of Board actions so long as at least four (4) 
Directors are present, including one (1) Director appointed by SOFTBANK and 
one (1) Director appointed by Ariba. If no Director nominated by SOFTBANK or 
no Director nominated by Ariba attends a duly noticed Board meeting, such 
meeting shall be immediately adjourned and rescheduled, and written notice of 
such rescheduled meeting shall be delivered to the Directors not less than 
five (5) Business Days in advance of the rescheduled meeting. If the number 
of Directors who attend such rescheduled meeting is not sufficient to 
constitute a quorum under the first sentence of this Section 4(d), a quorum 
shall be deemed to exist for purposes of the rescheduled meeting 
notwithstanding such non-attending Directors' absence so long as there is a 
sufficient number of directors present to constitute a valid quorum pursuant 
to the Commercial Code. Any action, determination or resolution of the Board 
shall require the affirmative vote of a majority of Directors present at a 
meeting at which a valid quorum pursuant to this Section 4(d) is present. 
Notwithstanding the foregoing, the matters set forth on [*] shall additionally 
require the affirmative vote of at least [*] appointed by [*] or [*], provided 
that at the time such vote is sought the [*] hold at least [*] of the 
Securities acquired by the [*] pursuant to the Stock Purchase Agreement and 
pursuant to Sections 11 and 18 of this Agreement.

         5.       REPRESENTATIVE DIRECTOR; KEY OFFICERS. [*] shall designate 
[*] Representative Directors of the Company in accordance with the Commercial 
Code, one of whom shall be the [*]. [*] shall have the right to approve the 
[*] and the [*] in its sole discretion upon prior consultation with [*]. [*] 
shall also have the right, exercisable in its sole discretion upon prior 
consultation with [*], (i) to remove and replace the [*] or any [*] at any 
time and (ii) to appoint a successor [*] or [*] in the event a vacancy arises 
for any reason, in each case effective upon the delivery of written notice to 
the [*] or the [*] and the other Parties. Each Party agrees to cause the 
Directors nominated by it to take appropriate action by the Board to effect 
any such removal, replacement or appointment.

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       6
<PAGE>

         6.       STATUTORY AUDITORS. The Company shall have three (3) 
Statutory Auditors whom shall be nominated by Ariba. A Statutory Auditor may 
be removed for cause in accordance with applicable law. Ariba shall also have 
the right, exercisable in its sole discretion, to remove and replace a 
Statutory Auditor at any time, effective upon the delivery of written notice 
to the Statutory Auditor to be removed and the other Parties. Ariba shall 
also further have the right to appoint a successor Statutory Auditor in the 
event a vacancy arises for any reason.

         7.       SHAREHOLDERS' MEETINGS. Shareholders of the Company shall 
receive notice of each shareholders' meeting at least ten (10) Business Days 
before the scheduled date of such meeting. The Company shall have at least 
one shareholders' meeting each calendar year. Such meeting will take place at 
such time and place as is determined by the Board. Meetings shall be 
conducted in the English language (with Japanese translation to the extent 
requested by SOFTBANK paid for by the Company), and minutes of such meetings 
shall be prepared by the Company in English and Japanese. In the event of 
conflict or controversy, the English version of the minutes shall control.

         8.       FINANCIAL STATEMENTS AND ACCOUNTING RECORDS. Financial 
statements for the Company, including without limitation a balance sheet, 
income statement, statement of cash flows and statement of shareholders' 
equity, shall be submitted by the Company to each of the other Parties (i) 
within sixty (60) days after the end of each fiscal quarter for such quarter, 
and (ii) within ninety (90) days after the end of each fiscal year for such 
year. Each of the annual financial statements shall be audited and certified 
by an internationally recognized accounting firm (which will act as an 
independent auditor under the Special Exceptions Law) retained by the 
Company. All financial statements shall be (i) prepared in accordance with 
generally accepted accounting principles in Japan and (ii) in reasonable 
detail and shall contain such financial data as Ariba, SOFTBANK Parent and 
SOFTBANK reasonably request in order to keep each of them advised of the 
Company's financial status (although quarterly statements need not include 
footnotes and may be subject to year-end adjustments).

         9.       RIGHT OF INSPECTION. During office hours of the Company, 
and upon reasonable notice to the Company, each of SOFTBANK, SOFTBANK Parent 
and Ariba shall have full access to all properties, books of account, and 
records of the Company, and each such Party shall have the right to make 
copies from such books and records at its own expense. Any information 
obtained by SOFTBANK, SOFTBANK Parent or Ariba through exercise of rights 
granted under this Section 9 shall, to the extent constituting Confidential 
Information under Section 7.2 of the Stock Purchase Agreement, be subject to 
the confidentiality provisions set forth in such Section 7.2.

         10.      SOFTBANK RIGHTS. [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       7
<PAGE>

         11.      COMPANY INTERESTS. The Parties agree to implement the 
Company's capital structure and the terms of this Agreement so that at all 
times during the term hereof, [*].

         12.      ANNUAL BUSINESS PLAN. The Company's management shall 
discuss its proposed Annual Business Plan with SOFTBANK before submitting 
such Annual Business Plan to the Board for approval.

         13.      TRANSFER RESTRICTIONS.

                           (a)      Neither SOFTBANK Parent nor SOFTBANK 
shall, except as otherwise specifically provided in this Agreement, sell, 
transfer, assign, hypothecate or in any way alienate ("TRANSFER") any of its 
Securities.

                           (b)      Notwithstanding Section 13(a), SOFTBANK 
Parent and SOFTBANK may Transfer all or any portion of its Securities (i) to 
any [*] or [*] of such Party or (ii) after the closing of [*], to any Person 
upon the completion of such Party's compliance with the restrictions imposed 
by Section 14 of this Agreement; PROVIDED 


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       8
<PAGE>

that the following conditions shall be satisfied in the case of a Transfer 
pursuant to clause (i) above of this Section 13(b):

                                    A.       (x) in the case of a Transfer to 
an [*], such Party covenants that such [*] shall remain an [*] of such Party 
so long as the transfer restrictions set forth in this Section 13 are in 
effect and the [*] owns the Transferred shares; and (y) in the case of a 
Transfer to an [*], such [*] covenants that it shall remain an [*] of such 
Party so long as the transfer restrictions set forth in this Section 13 are 
in effect and the [*] owns the Transferred shares; and

                                    B.       such Party, or, in the case of a 
Transfer to an [*] or an [*], such [*] or [*] represents and covenants that 
the shares transferred to the transferee are not, and will not be, subject to 
any lien or other security interest, whether direct or indirect, unless such 
lien or security interest is consented to by the Company.

                           (c)      Notwithstanding the provisions of this 
Section 13, neither SOFTBANK Parent nor SOFTBANK may Transfer any of its 
Securities until [*].

                           (d)      In the case of any Transfer permitted 
under Section 13(b)(i), SOFTBANK Parent or SOFTBANK, as the case may be, 
shall deliver to the Company and Ariba (i) at least ten (10) Business Days 
prior to such Transfer, a written notice stating its intention to Transfer 
the Securities to be Transferred, the name of the transferee, whether such 
transferee is an Affiliate, the number of Securities to be Transferred, and 
the price and other material terms and conditions of the Transfer, (ii) 
except as otherwise specifically provided herein, on or prior to the 
effective date of the Transfer and in a form reasonably acceptable to the 
Company and its counsel, the transferee's written acknowledgement of and 
agreement to be bound by, and to vote the Transferred Securities at all times 
in accordance with, the terms of this Agreement and any other Transaction 
Agreement, and (iii) if reasonably requested by the Company, an opinion of 
counsel, reasonably satisfactory to the Company that such Transfer will not 
require registration of such shares under any applicable securities laws.

                           (e)      [*] shall not, except as otherwise 
specifically provided in this Agreement, Transfer any of its Securities.

                           (f)      Notwithstanding Section 13(e), [*] may 
Transfer all or any portion of its Securities (i) to any Person, PROVIDED 
that [*] and its Affiliates continue to own at least [*] of the Securities 
owned by [*] at the close of business on the Effective Date and subsequently 
acquired by [*] pursuant to Sections 11 and 18 of this Agreement, or (ii) 
after the closing of [*], to any Person upon the completion of such Party's 
compliance with the restrictions imposed by Section 14 of this Agreement.

                           (g)      In the case of any Transfer permitted 
under Section 13(f)(i), [*] shall deliver to [*] (i) at least ten (10) 
business days prior to such Transfer, a written notice stating its intention 
to Transfer the Securities to be Transferred, the name of the transferee, 
whether such transferee is an Affiliate, the number of Securities to be 

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       9
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Transferred, and the price and other material terms and conditions of the 
Transfer, (ii) except as otherwise specifically provided herein, on or prior 
to the effective date of the Transfer and in a form reasonably acceptable to 
the Company and its counsel, the transferee's written acknowledgement of and 
agreement to be bound by, and to vote the Transferred Securities at all times 
in accordance with, the terms of this Agreement and any other Transaction 
Agreement and (iii) if reasonably requested by the Company, an opinion of 
counsel, reasonably satisfactory to the Company that such Transfer will not 
require registration of such shares under any applicable securities laws.

         14.      "MARKET STAND-OFF" AGREEMENT. Each of Ariba, SOFTBANK 
Parent and SOFTBANK hereby agrees that it will not, without the prior written 
consent of the managing underwriter, during the period commencing on the date 
of the final prospectus relating to the Company's IPO and ending on the date 
specified by the Company and the managing underwriter(s) (such period not to 
exceed one hundred eighty (l80) days) (i) lend, offer, pledge, sell, contract 
to sell, sell any option or contract to purchase, purchase any option or 
contract to sell, grant any option, right or warrant to purchase, or 
otherwise Transfer, directly or indirectly, any Securities, or (ii) enter 
into any swap or other arrangement that transfers to another, in whole or in 
part, any of the economic consequences of ownership of the Securities, 
whether any such transaction described in clause (i) or (ii) above is to be 
settled by delivery of Securities, in cash or otherwise. The underwriters in 
connection with the Company's initial public offering are intended third 
party beneficiaries of this Section 14 and shall have the right, power and 
authority to enforce the provisions hereof as though they were a Party hereto.

         Notwithstanding the foregoing provisions of this Section 14, the 
obligations of Ariba, SOFTBANK Parent and SOFTBANK under this Section 14 
shall not be more restrictive than the least restrictive "market standoff" 
obligations to which any of the Company's executive officers, directors or 
10% or greater shareholders are subject. In order to enforce the foregoing 
covenant, the Company may to the extent permitted by applicable law impose 
stop-transfer instructions with respect to the Shares owned by the Investor 
(and the shares or securities of every other person subject to the foregoing 
restriction) until the end of such period.

         15.      EXCLUSIVITY.

                           (a)      During the term of this Agreement, [*] 
agrees that it will not, and will not permit any Affiliate in which [*] 
directly or indirectly holds a fifty percent (50%) or greater ownership 
interest (a "Subject Affiliate"), to do any of the following:

                                    (i)      [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       10
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                                    (ii)     [*]

                                    (iii)    [*]

                                    (iv)     [*]

                           (b)      [*]

                           (c)      For purposes of this SECTION 15, [*] 
shall not be deemed an investment fund or investment vehicle or a Subject 
Affiliate.

                           (d)      This SECTION 15 shall terminate at such 
time as [*].

         16.      CO-SALE RIGHTS.

                           (a)      If any [*] desires to Transfer any of its 
Securities (the "Offered Co-Sale Securities") to any Person (other than [*]) 
and 

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       11
<PAGE>

such Offered Co-Sale Securities, together with any Securities previously 
Transferred by [*] to Persons (other than [*]) represent [*] or more of the 
outstanding Fully Diluted Securities measured at the time of such Transfer, 
the [*] (each, a "CO-SALE SHAREHOLDER") shall have the right and option to 
include a pro rata portion of the Securities to be sold in the proposed sale 
at the same price per share and on the same other terms and conditions that 
apply to [*] in the proposed sale. Each Co-Sale Shareholder's pro rata 
portion shall be equal to the product of (i) the outstanding Securities owned 
by such Co-Sale Shareholder divided by the outstanding Securities owned by [*]
and all Co-Sale Shareholders who duly elect to sell Securities in the 
transaction, multiplied by (ii) the total number of Securities proposed to be 
sold in the transaction. The number of Offered Co-Sale Securities to be sold 
by [*] in the transaction shall be reduced to the extent that Co-Sale 
Shareholders elect to participate in the transaction.

                           (b)      [*] shall give notice to each Co-Sale 
Shareholder of the proposed sale. Such notice shall contain the proposed 
sales price per share and the other material terms and conditions on which [*]
desires to sell the Offered Co-Sale Securities. Each Co-Sale Shareholder may 
exercise its right to participate in the sale pursuant to this Section 16 by 
giving notice to [*] and each other Co-Sale Shareholder within fifteen (15) 
days after receipt of such notice from [*]. If on any proposed sale, [*] 
shall be provided a proposed sale notice and the opportunity to exercise 
their co-sale rights hereunder subject to paying the entire remaining portion 
of the [*] prior to the closing of the proposed sale.

         17.      ADDITIONAL CAPITAL. If the Company seeks to raise 
additional capital primarily for financing rather than strategic purposes, 
the Company shall [*] provided that [*] shall be determined by the Board in 
its sole good faith discretion.

         18.      RIGHT OF FIRST OFFER.

                           (a)      Subject to the terms and conditions 
specified in this Section 18, the Company hereby grants to each Investor a 
right of first offer with respect to future sales by the Company of its 
Securities. Each time the Company proposes to offer any Securities, the 
Company shall first make an offering of the Securities to the Investors in 
accordance with the following provisions.

                           (b)      The Company shall deliver a notice in 
accordance with Section 26.2 ("Notice") to each Investor stating (i) its bona 
fide intention to offer the Securities, (ii) the number of Securities to be 
offered (the "Offered Securities"), and (iii) the price and terms upon which 
it proposes to offer the Offered Securities.

                           (c)      By written notification received by the 
Company, within twenty (20) calendar days after receipt of the Notice, the 
Investor may elect to purchase or 


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       12
<PAGE>

obtain, at the price and on the terms specified in the Notice, up to that 
portion of the Offered Securities that equals the proportion that the number 
of shares of Securities issued and held by the Investor, after giving effect 
to the exchange, exercise and conversion of all Securities held by Investor 
that are exchangeable and exercisable for and convertible into Securities, 
bears to the total number of shares of Securities then outstanding, after 
giving effect to the exchange, exercise and conversion of all securities then 
outstanding that are exchangeable and exercisable for and convertible into 
Securities.

                           (d)      Notwithstanding Section 18(c), [*].

                           (e)      If all Offered Securities that Investors 
are entitled to obtain pursuant to Sections 18(c) and (d) are not elected to 
be obtained as provided in Sections 18(c) and (d) hereof, the Company may, 
during the one hundred twenty (120) day period following the expiration of 
the period provided in subsection 18(c) hereof, offer the remaining 
unsubscribed portion of such Offered Securities to any person or persons at a 
price not less than, and upon terms no more favorable to the offeree than 
those specified in the Notice. If the Company does not enter into an 
agreement for the sale of the Offered Securities within such period, or if 
such agreement is not consummated within sixty (60) days of the execution 
thereof, the right provided hereunder shall be deemed to be revived and such 
Offered Securities shall not be offered unless first reoffered to the 
Investor in accordance herewith.

                           (f)      The right of first offer in this Section 
18 shall not be applicable to (i) the issuance or sale of shares of Common 
Stock (or options therefor) to employees, directors and consultants for the 
primary purpose of soliciting or retaining their services; (ii) the issuance 
of Securities pursuant to a bona fide public offering of shares of Common 
Stock, (iii) the issuance of Securities in connection with a bona fide 
business acquisition of or by the Company, whether by merger, consolidation, 
sale of assets, sale or exchange of stock or otherwise, (iv) the issuance of 
stock, warrants or other Securities or rights not primarily for equity 
financing purposes to persons or entities with which the Company has business 
relationships or will have a strategic business relationship following such 
issuance, (vi) [*]. The right of first offer in Section 18(c) [*] shall 
terminate upon the closing of the IPO.


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       13
<PAGE>

         19.      IPO COMMITMENT.

                           (a)      The Parties intend that, on or prior to 
the [*] anniversary of the Effective Date, the Company will seek to conduct 
an initial public offering of shares of its Common Stock ("IPO"), subject to 
prevailing market conditions and the condition and performance of the Company.

                           (b)      [*]

                           (c)      Each shareholder agrees to enter into a 
customary market standoff agreement with the underwriter(s) in the IPO with 
substantially the same terms and conditions as set forth in Section 14.

         20.      CERTAIN BREACHES. If [*] alleges in writing to the Company, 
after consultation with its outside counsel, that it is probable that [*] has 
breached any contract between [*], on the one hand, and the Company or any of 
its controlled Affiliates, on the other hand, the Board shall at the request 
of [*] form a committee of the Board (the "Litigation Committee") consisting 
of [*]. The Committee shall have the sole and exclusive authority to (i) 
determine whether to assert on behalf of the Company that [*] has breached 
any such contract and (ii) if any such assertion is made, to control the 
resolution of any such dispute, but only if such dispute is resolved through 
the dispute resolution process set forth in Section 26.1 hereof as if 
applicable to disputes referred to in this Section 20. [*] agrees, upon 
behalf of itself and [*] and the Company agrees on behalf of itself and its 
controlled Affiliates to submit any such dispute to the dispute resolution 
process set forth in Section 26.1 hereof.

         21.      MODIFICATION OF TRANSACTION AGREEMENTS.

                           (a)      [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       14
<PAGE>

                           (b)      [*]

                           (c)      [*]

                           (d)      [*]

         22.      REPRESENTATIONS AND WARRANTIES OF SOFTBANK AND SOFTBANK 
PARENT. Each of SOFTBANK and SOFTBANK Parent hereby represents and warrants 
to Ariba and the Company that, as of the Effective Date, the following 
statements are and shall be true and correct:

                           (a)      ORGANIZATION. Each of SOFTBANK and 
SOFTBANK Parent is a corporation duly organized and validly existing under 
the laws of Japan, and has the 


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       15
<PAGE>

corporate power and authority to enter into and perform this Agreement and 
the other Transaction Agreements to which it is a party.

                           (b)      PERMITS; APPROVALS. Each of SOFTBANK and 
' SOFTBANK Parent holds all licenses, permits, certifications and other 
authorizations, the absence of which would have a material adverse effect on 
its financial condition or business, and there has been no default or 
violation under any such authorization and there is no proceeding or 
investigation that is pending or, to each such Party's knowledge, threatened 
under which any such authorization may be revoked, terminated or suspended.

                           (c)      AUTHORIZATION. All corporate action on 
the part of each of SOFTBANK and SOFTBANK Parent necessary for the 
authorization, execution and delivery of this Agreement and the other 
Transaction Agreements to which it is a party and for the performance of all 
of its obligations hereunder and thereunder has been taken, and this 
Agreement and the other Transaction Agreements to which it is a party when 
fully executed and delivered, shall each constitute a valid, legally binding 
and enforceable obligation of each such Party.

                           (d)      GOVERNMENT AND OTHER CONSENTS. No 
consent, authorization, license, permit, registration or approval of, or 
exemption or other action by, any governmental or public body or authority, 
or any other Person, is required in connection with the execution, delivery 
and performance by each of SOFTBANK and SOFTBANK Parent of this Agreement and 
the other Transaction Agreements to which it is a party, or if any such 
consent is required, each such Party has satisfied the applicable 
requirements.

                           (e)      EFFECT OF AGREEMENT. The execution, 
delivery and performance of this Agreement and the other Transaction 
Agreements to which SOFTBANK or SOFTBANK Parent is a party will not (i) 
violate the Articles of Incorporation of such party or any provision of any 
law, statute, rule or regulation to which such party is subject, (ii) violate 
any judgment, order, writ, injunction or decree of any court applicable to 
such party, (iii) have any effect on the compliance of such party with any 
applicable licenses, permits or authorizations which would materially and 
adversely affect such party, (iv) result in the breach of, give rise to a 
right of termination, cancellation or acceleration of any obligation with 
respect to (presently or with the passage of time), or otherwise be in 
conflict with any term of, or affect the validity or enforceability of, any 
agreement or other commitment to which such party is a party and which would 
materially and adversely affect such party or (v) result in the creation of 
any lien, pledge, mortgage, claim, charge or encumbrance upon any assets of 
such party.

                           (f)      LITIGATION. There are no actions, suits 
or proceedings pending or, to such party's knowledge, threatened, against 
such party before any court or governmental agency which question such 
party's right to enter into or perform its obligations under this Agreement 
or the other Transaction Agreements to which it is a party, or which question 
the validity of this Agreement or any of the other Transaction Agreements.

                           (g)      DISCLOSURE. No representation or warranty 
by SOFTBANK or SOFTBANK Parent contained in this Agreement or in any other 
Transaction Agreements to which such party is a party, and no exhibit, 
writing or other instrument required to be furnished 

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



                                       16
<PAGE>

by such party pursuant hereto or thereto contains any untrue statement of a 
material fact or omits any material fact necessary in order to make the 
statements and information contained herein or therein not misleading.

         23.      REPRESENTATIONS AND WARRANTIES OF ARIBA. Ariba hereby 
represents and warrants to SOFTBANK Parent and SOFTBANK that, as of the 
Effective Date, the following statements are true and correct:

                           (a)      ORGANIZATION. Ariba is a corporation duly 
organized and validly existing under the laws of Delaware. Ariba has the 
corporate power and authority to enter into and perform this Agreement and 
the other Transaction Agreements to which it is a party.

                           (b)      PERMITS; APPROVALS. Ariba holds all 
licenses, permits, certifications and other authorizations, including without 
limitation any such authorizations required under U.S. federal securities 
laws, the absence of which would have a material adverse effect on the 
financial condition or business of Ariba, and there has been no default or 
violation under any such authorization and there is no proceeding or 
investigation that is pending or, to Ariba's knowledge, threatened under 
which any such authorization may be revoked, terminated or suspended.

                           (c)      AUTHORIZATION. All corporate action on 
the part of Ariba necessary for the authorization, execution and delivery of 
this Agreement and the other Transaction Agreements to which it is a party 
and for the performance of all of its obligations hereunder and thereunder 
has been taken, and this Agreement, the License Agreement and the other 
Transaction Agreements to which it is a party, when fully executed and 
delivered, shall each constitute a valid, legally binding and enforceable 
obligation of Ariba.

                           (d)      GOVERNMENT AND OTHER CONSENTS. Except as 
disclosed in the Transaction Agreements, no consent, authorization, license, 
permit, registration or approval of, or exemption or other action by, any 
governmental or public body or authority, or any other Person, is required in 
connection with Ariba's execution, delivery and performance of this Agreement 
or the other Transaction Agreements to which it is a party, or if any such 
consent is required, Ariba has satisfied any applicable requirements.

                           (e)      EFFECT OF AGREEMENT. Ariba's execution, 
delivery and performance of this Agreement and the other Transaction 
Agreements to which it is a party will not (i) violate the Certificate of 
Incorporation of Ariba or any provision of any law, statue, rule or 
regulation to which it is subject, (ii) violate any judgment, order, writ, 
injunction or decree of any court applicable to Ariba, (iii) have any effect 
on the compliance of Ariba with any applicable licenses, permits or 
authorizations which would materially and adversely affect Ariba, (iv) result 
in the breach of, give rise to a right of termination, cancellation or 
acceleration of any obligation with respect to (presently or with the passage 
of time), or otherwise be in conflict with, any term of, or affect the 
validity or enforceability of any agreement or other commitment to which 
Ariba is a party and which would materially and adversely affect Ariba, or 
(v) result in the creation of any lien, pledge, mortgage, claim, charge or 
encumbrance upon any assets of Ariba.

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



                                       17
<PAGE>

                           (f)      LITIGATION. There are no actions, suits 
or proceedings pending or, to Ariba's knowledge, threatened, against Ariba 
before any court or governmental agency which question Ariba's right to enter 
into or perform this Agreement or other Transaction Agreements to which it is 
a party, or which question the validity of this Agreement or any of the other 
Transaction Agreements.

                           (g)      DISCLOSURE. No representation or warranty 
by Ariba contained in this Agreement or any other Transaction Agreement to 
which it is a party, and no exhibit, writing or other instrument required to 
be furnished pursuant hereto contains any untrue statement of a material fact 
or omits any material fact necessary in order to make the statements and 
information contained herein or therein not misleading.

         24.      EFFECTIVENESS, TERM AND TERMINATION.

                  24.1     TERM. This Agreement shall be effective as of the 
Effective Date and shall continue in effect until and unless terminated 
pursuant to Section 24.2.

                  24.2     TERMINATION. This Agreement may be terminated as 
follows:

                           (a)      Upon the Parties' mutual written agreement.

                           (b)      By either Ariba or the Company, effective 
immediately upon written notice to the other Parties, if either SOFTBANK 
Parent or SOFTBANK breaches any material provision of this Agreement or of 
any of the other Transaction Agreements in any material respect and such 
breach continues for a period of thirty (30) days after the delivery of 
written notice of the default, describing the default in reasonable detail.

                           (c)      By either SOFTBANK Parent or SOFTBANK, 
effective immediately upon written notice to the other Parties, if Ariba or 
the Company breaches any material provision of this Agreement or of any of 
the other Transaction Agreements in any material respect and such breach 
continues for a period of thirty (30) days after the delivery of written 
notice of the default, describing the default in reasonable detail.

                           (d)      By either SOFTBANK Parent or SOFTBANK, 
effective immediately upon written notice to Ariba and the Company, in the 
event that either Ariba or the Company terminates or elects to terminates [*] 
in accordance with its terms.

                           (e)      Ariba, effective immediately upon written 
notice to the other Parties in the event that either Ariba or the Company has 
elected to terminate [*] in accordance with its terms.

                           (f)      By either SOFTBANK Parent, SOFTBANK, 
Ariba or the Company, effective immediately upon written notice to the other 
Parties, in the event that any other Party is dissolved, liquidated or 
declared bankrupt or a filing for voluntary or involuntary.

                           (g)      Notwithstanding the foregoing, the right 
of SOFTBANK and SOFTBANK Parent to terminate this Agreement pursuant to 
Section 24.2(c), as a result of a breach by the Company, or pursuant to 
Section 24.2(d), as a result of a termination of [*],


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       18
<PAGE>

shall exist only if [*] and only if no [*] is in effect.

                  24.3     CONTINUING LIABILITY. Notwithstanding the 
foregoing, Article 25 and Article 26 (except for Section 26.6, which shall 
not survive termination) shall survive a termination of the Agreement. 
Termination of this Agreement for any reason shall not release any Party from 
any liability or obligation which has already accrued as of the effective 
date of such termination, and shall not constitute a waiver or release of, or 
otherwise be deemed to prejudice or adversely affect, any rights, remedies or 
claims, whether for damages or otherwise, which a Party may have hereunder, 
at law, equity or otherwise or which may arise out of or in connection with 
such termination.

         25.      INCIDENTAL AND CONSEQUENTIAL DAMAGES.

NO PARTY NOR ITS AFFILIATES WILL BE LIABLE TO THE OTHER PARTIES UNDER ANY 
CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER THEORY FOR ANY INDIRECT, 
INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST 
PROFITS) WITH RESPECT TO ANY SUBJECT MATTER OF THIS AGREEMENT.

EACH PARTY AGREES AND ACKNOWLEDGES THAT MONEY DAMAGES MAY NOT BE AN ADEQUATE 
REMEDY FOR ANY BREACH OF THE PROVISIONS OF THIS AGREEMENT AND THAT EACH PARTY 
MAY, IN ITS SOLE DISCRETION, APPLY FOR SPECIFIC PERFORMANCE AND INJUNCTIVE 
RELIEF IN ORDER TO ENFORCE OR PREVENT ANY VIOLATIONS OF THE PROVISIONS OF 
THIS AGREEMENT.

         26.      MISCELLANEOUS.

                  26.1     GOVERNING LAW; DISPUTE RESOLUTION. The validity, 
construction and enforceability of this Agreement shall be governed by and 
construed in accordance with the laws of the State of California. All 
disputes between the Parties arising out of this Agreement shall be settled 
by the Parties amicably through good faith discussions upon the written 
request of any Party. In the event that any such dispute cannot be resolved 
thereby within a period of sixty (60) days after such notice has been given, 
such dispute shall be finally settled by arbitration in San Francisco, 
California, using the English language in accordance with the Rules of 
Arbitration of the American Arbitration Association then in effect, by one or 
more arbitrators appointed in accordance with such Rules. The arbitrator(s) 
shall have the authority to grant specific performance and to allocate 
between the Parties the costs of arbitration in such equitable manner as the 
arbitrator(s) may determine. The prevailing Party in the arbitration shall be 
entitled to receive reimbursement of its reasonable expenses incurred in 
connection therewith. Judgment upon the award so rendered may be entered in 
any court having jurisdiction or application may be made to such court for 
judicial acceptance of any award and an order of enforcement, as the case may 
be. Notwithstanding the foregoing, each Party shall have the right to 
institute a legal action in a court of proper jurisdiction for injunctive 
relief and/or a decree for specific performance to enforce such Party's 
rights hereunder pending final settlement by arbitration.


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       19
<PAGE>

                  26.2     NOTICES AND OTHER COMMUNICATIONS. Unless otherwise 
provided, any notice required or permitted under this Agreement shall be 
given in writing and in English and shall be deemed effectively given (i) 
upon personal delivery to the party to be notified, (ii) by delivery by 
confirmed facsimile or (iii) three (3) Business Days after being provided to 
an internationally recognized courier service with an expected delivery of no 
more than three (3) business days, in each case to the party to be notified 
at the address indicated for such party on the signature page hereof, or at 
such other address as such party may designate by ten (10) days' advance 
written notice to the other Parties:

                                    (a)      If to SOFTBANK Parent

                                             [*]

                                             with a copy to:

                                             [*]

                                    (b)      If to SOFTBANK

                                             [*]

                                             with a copy to:

                                             [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       20
<PAGE>

                                    (c)      If to the Company

                                             [*]

                                             with a copy to:

                                             [*]

                                    (d)      If to Ariba

                                             [*]

                                             with a copy to:

                                             [*]

                  26.3     LANGUAGE. This Agreement is in the English 
language only, which language shall be controlling in all respects, and all 
versions hereof in any other language shall be for accommodation only and 
shall not be binding upon the Parties. All communications and notices to be 
made or given pursuant to this Agreement shall be in the English language.

                  26.4     SEVERABILITY. If any provision in this Agreement 
shall be found or be held to be invalid or unenforceable (including, without 
limitation, as a result of objections by the Japanese Fair Trade Commission) 
then the meaning of said provision shall be construed, to the extent 
feasible, so as to render the provision enforceable, and if no feasible 
interpretation would save such provision, it shall be severed from the 
remainder of this Agreement which shall remain in full force and effect 
unless the severed provision is essential and material to the rights or 
benefits received by any Party. In such event, the Parties shall use 
commercially reasonable efforts to negotiate, in good faith, a substitute, 
valid and enforceable provision or agreement which most nearly affects the 
Parties' intent in entering into this Agreement.


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       21
<PAGE>

                  26.5     REFERENCES; SUBJECT HEADINGS. Unless otherwise 
indicated, references to Sections and Exhibits herein are to Sections of, and 
Exhibits to, this Agreement. The subject headings of the Sections of this 
Agreement are included for the purpose of convenience of reference only, and 
shall not affect the construction or interpretation of any of its provisions.

                  26.6     FURTHER ASSURANCES. The Parties shall each perform 
such acts, execute and deliver such instruments and documents, and do all 
such other things as may be reasonably necessary to accomplish the 
transactions contemplated in this Agreement.

                  26.7     EXPENSES. Each of the Parties will bear its own 
costs and expenses, including, without limitation, fees and expenses of legal 
counsel, accountants, brokers, consultants and other representatives used or 
hired in connection with the negotiation and preparation of this Agreement 
and consummation of the transactions contemplated hereby.

                  26.8     NO WAIVER. No waiver of any term or condition of 
this Agreement shall be valid or binding on a Party unless the same shall 
have been set forth in a written document, specifically referring to this 
Agreement and duly signed by the waiving Party. The failure of a Party to 
enforce at any time any of the provisions of this Agreement, or the failure 
to require at any time performance by the other Party of any of the 
provisions of this Agreement, shall in no way be construed to be a present or 
future waiver of such provisions, nor in any way affect the ability of a 
Party to enforce each and every such provision thereafter.

                  26.9     ENTIRE AGREEMENT; AMENDMENTS. The terms and 
conditions contained in this Agreement (including the Exhibits hereto) and 
the other Transaction Agreements constitute the entire agreement between the 
Parties and supersede all previous agreements and understandings, except for 
the Ariba Non-Disclosure Agreement, whether oral or written, between the 
Parties with respect to the subject matter hereof. No agreement or 
understanding amending this Agreement shall be binding upon any Party unless 
set forth in a written document in English which expressly refers to this 
Agreement and which is signed and delivered by duly authorized 
representatives of each Party.

                  26.10    ASSIGNMENT. No Party shall assign this Agreement 
(or any right or obligation hereunder) without the other Parties' prior 
written consent, except that (i) [*] may assign this Agreement to a Person 
into which it has merged or which has otherwise succeeded to all or 
substantially all of [*] business or assets and (ii) [*] may assign this 
Agreement to a Person that is a wholly owned subsidiary of [*], respectively, 
or a Person who has succeeded to all or substantially all of the business or 
assets of [*], respectively. All assignees under this Section 26.10 must 
assume in writing or by operation of law, the assigning Party's obligations 
under this Agreement, provided, however, that the assigning Party shall 
remain liable for the assignee's performance of its obligations hereunder. 
This Agreement shall inure to the benefit of, and shall be binding upon, the 
Parties and their respective permitted successors and assigns.


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

                                       22
<PAGE>

                  26.11    NO AGENCY. The Parties are independent 
contractors. Nothing contained herein or done in pursuance of this Agreement 
shall constitute any Party the agent of any other Party for any purpose or in 
any sense whatsoever.

                  26.12    NO BENEFICIARIES. Nothing herein express or 
implied, is intended to or shall be construed to confer upon or give to any 
person, firm, corporation or legal entity, other than the Parties, any 
interests, rights, remedies or other benefits with respect to or in 
connection with any agreement or provision contained herein or contemplated 
hereby.

                  26.13    COUNTERPARTS. This Agreement may be executed in 
any number of counterparts, and each counterpart shall constitute an original 
instrument, but all such separate counterparts shall constitute only one and 
the same instrument.

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



                                       23
<PAGE>

         IN WITNESS WHEREOF, the Parties have caused their respective duly 
authorized representatives to execute this Agreement as of the date hereof.

SOFTBANK CORP.


By:    /s/ MASAYOSHI SON
       --------------------------------------------

Title:                                               
       --------------------------------------------


SOFTBANK E-COMMERCE CORP.



By:    /s/ KEN MIYAUCHI
       --------------------------------------------

Title:                                               
       --------------------------------------------


ARIBA, INC.



By:    /s/ KEITH J. KRACH
       --------------------------------------------

Title: Chairman & CEO
       --------------------------------------------


NIHON ARIBA K.K.



By:    /s/ KEITH J. KRACH
       --------------------------------------------

Title: Chairman & CEO
       --------------------------------------------

* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.  



<PAGE>

                                  Exhibit 1.27

                                       [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

<PAGE>

                                  Exhibit 4(d)

                                      [*]

[*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

<PAGE>

                                  Exhibit 21(b)

                                      [*]

[*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.

<PAGE>

                                   SCHEDULE 15

                                       [*]


* Represents confidential information for which Ariba, Inc. is seeking 
  confidential treatment with the Securities and Exchange Commission.
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