Document:

<PAGE>

                                                                    Exhibit 10.1
                                    --------------------------------------------

Silicon Valley Bank

                           AMENDMENT TO LOAN DOCUMENTS

Borrower: Onyx Software Corporation

Date:     March 4, 2002

     THIS AGREEMENT TO LOAN DOCUMENTS is entered into between Silicon Valley
Bank ("Silicon") and the borrower named above ("Borrower").

     The Parties agree to amend the Loan and Security Agreement between them,
dated February 14, 2002 (as otherwise amended, if at all, the "Loan Agreement"),
as follows, effective as of the date hereof. (Capitalized terms used but not
defined in this Amendment shall have the meanings set forth in the Loan
Agreement.)

     1. Modified Tangible Net Worth Financial Covenant. The Minimum Tangible Net
Worth Financial Covenant set forth in that portion of the Schedule to Loan and
Security Agreement entitled "5. FINANCIAL COVENANTS (Section 5.1)" which
currently reads as follows:

          Minimum Tangible    As of the end of each month during the
          Net Worth:          following periods Borrower shall, on a
                              consolidated basis, maintain a Tangible Net Worth
                              of not less than the following amounts, plus an
                              amount equal to 50% of the total consideration
                              received by Borrower after December 31, 2001, in
                              consideration for the issuance by the Borrower of
                              its equity securities and/or subordinated debt
                              securities, effective on the date such
                              consideration is received:

                              --------------------------------------------------
                              Dates                                      Minimum
                                                                    Tangible Net
                                                                           Worth
                              --------------------------------------------------
                              December 31, 2001                       $3,800,000
                               -------------------------------------------------
                              January 1, 2002 to and including        $4,000,000
                              March 31, 2002
                              --------------------------------------------------
                              April 1, 2002 to and including          $4,425,000
                              June 30, 2002
                              --------------------------------------------------
                              July 1, 2002 to and including           $5,800,000
                              September 30, 2002
                              --------------------------------------------------
                              October 1, 2002 to and including        $8,575,000
                              December 31, 2002
                              --------------------------------------------------

<PAGE>

is hereby amended to read as follows:

          Minimum Tangible    As of the end of each month during the following
          Net Worth:          periods Borrower shall, on a consolidated basis,
                              maintain a Tangible Net Worth of not less than the
                              following amounts, plus an amount equal to 50% of
                              the total consideration received by Borrower after
                              January 31, 2002, in consideration for the
                              issuance by the Borrower of its equity securities
                              and/or subordinated debt securities, effective on
                              the date such consideration is received:

                              --------------------------------------------------
                              Dates                                      Minimum
                                                                    Tangible Net
                                                                           Worth
                              --------------------------------------------------
                              January 1, 2002 to and including        $8,474,800
                              February 28, 2002
                              --------------------------------------------------
                              March 1, 2002 to and including         $13,474,800
                              March 31, 2002
                              --------------------------------------------------
                              April 1, 2002 to and including          $8,899,800
                              May 31, 2002
                              --------------------------------------------------
                              June 1, 2002 to and including          $13,899,800
                              June 30, 2002
                              --------------------------------------------------
                              July 1, 2002 to and including          $10,274,800
                              August 31, 2002
                              --------------------------------------------------
                              September 1, 2002 to and including     $15,274,800
                              September 30, 2002
                              --------------------------------------------------
                              October 1, 2002 to and including       $13,049,800
                              November 30, 2002
                              --------------------------------------------------
                              December 1, 2002 to and including      $18,049,800
                              December 31, 2002
                              --------------------------------------------------

     2. Representations True. Borrower represents and warrants to Silicon that
all representations and warranties set forth in the Loan Agreement, as amended
hereby, are true and correct.

     3. General Provisions. This Amendment, the Loan Agreement, any prior
written amendments to the Loan Agreement signed by Silicon and Borrower, and the
other written documents and agreements between Silicon and Borrower set forth in
full all of the representations and agreements of the parties with respect to
the subject matter hereof and supersede all prior discussions, representations,
agreements and understandings between the parties with respect to the subject
hereof. Except as herein expressly amended, all of the terms and provisions of
the Loan Agreement, and all other documents and agreements between Silicon and
Borrower shall continue in full force and effect and the same are hereby
ratified and confirmed.

                                      -2-

<PAGE>

Borrower:                                Silicon:

ONYX SOFTWARE CORPORATION                SILICON VALLEY BANK

By:        /s/ Jim O. Beck               By:       /s/ Don Chandler
   ----------------------------------       ----------------------------------
               Treasurer                 Title:    V.P.
                                               -------------------------------

By:      /s/ Amy E. Kelleran
   ----------------------------------
    Secretary or Ass't Secretary

                                      -3-<PAGE>

                                                                   Exhibit 10(a)

                           [LOGO OF AIRBORNE EXPRESS]

                      Executive Incentive Compensation Plan
                                     (EICP)

                                   2000 - 2004

<PAGE>

                       Airborne Freight Corporation D/B/A
                               "Airborne Express"

                      EXECUTIVE INCENTIVE COMPENSATION PLAN
                      -------------------------------------

                  Effective January 1, 2000 - December 31, 2004

1)   Purpose
     -------

     The purpose of this Plan is to achieve Corporate goals by providing
     incentive compensation to eligible key executives who through industry,
     ability and exceptional service, contribute materially to the success of
     Airborne Express.

2)   Definitions
     -----------
     When used in the Plan, the following words and phrases shall have the
     following meanings:

     a)   Attainment - The actual results of effort to reach the Target for a
          ----------
          Performance Measure, usually stated as a percentage of Target.

     b)   Beneficiary - The beneficiary or beneficiaries designated to receive
          -----------
          the amount, if any, payable under the Plan upon the death of a
          Participant.

     c)   Board - The Board of Directors of Airborne Freight Corporation.
          -----

     d)   Compensation Committee - The Compensation Committee of the Board.
          ----------------------

     e)   Maximum - The point above Target that represents the maximum payout
          -------
          level for a particular Performance Measure.

     f)   Net Profit - Pre-tax, pre-profit sharing net profit.
          ----------

     g)   Participant - Any employee eligible to receive awards under section 4.
          -----------

     h)   Performance Measure - A specific objective measure to assess success
          -------------------
          in achieving established goals. Permitted Performance Measures are
          listed in section 5.

     i)   Plan - The 2000 - 2004 Executive Incentive Compensation Plan.
          ----

     j)   Plan Year - Each calendar year for which Performance Measures and
          ---------
          Targets are established for the Company.

     k)   Retirement - When an employee leaves active service and qualifies
          ----------
          under the Company's regular or early retirement programs.

     l)   Revenue Growth - Percentage growth in sales revenue over the prior
          --------------
          year.

     m)   Target - The point at which performance equals 100% of the stated
          ------
          objective.

     n)   Threshold - The point below Target at which incentive payout for each
          ---------
          Performance Measure begins.

3)   Administration

     a)   The Compensation Committee will have the power to interpret the Plan
          and to make all determinations necessary or desirable for its
          administration.

     b)   The decision of the Compensation Committee on any question concerning
          the interpretation or administration of the Plan will be final and
          conclusive. Nothing in the Plan will be deemed to give any officer or
          employee, or legal representatives or assigns, any right to
          participate in the Plan except to such extent as the Compensation
          Committee may determine pursuant to the provisions of the Plan.

<PAGE>

4)   Eligibility

          a)   Positions eligible for the EICP are:

                 Chairman of the Board
                 Chief Executive Officer
                 President
                 Chief Operating Officer
                 Senior Executive Vice Presidents
                 Chief Executive Officer, ABX Air, Inc.
                 Executive Vice Presidents
                 President, ABX Air, Inc.
                 Chief Financial Officer

                 Except as otherwise provided below, Participants for a Plan
                 Year must be employed for the entire Plan Year.

          b)   With approval of the Compensation Committee, prior to June 30 of
               each Plan Year, additional employees may be included in the Plan,
               with any award pro-rated as shall be determined by the
               Compensation Committee.

          c)   Participants who retire in good standing during the year will be
               eligible for a pro-rated award for the year in which they retire
               provided they are on the active payroll on June 30th or later of
               the Plan Year.

          d)   Participants who take a leave of absence will have their awards
               calculated based on actual Airborne salary earnings for the
               calendar year. Any disability insurance payments will not be
               included as earnings in calculating awards. Participants who are
               on a leave of absence for more than 90 days and who continue to
               receive full or partial salary continuance will have their awards
               adjusted. Any salary paid while on a leave of absence period over
               90 days will not be included in the base used to calculate
               awards.

5)   Performance Measures
     --------------------
     Unless otherwise determined by the Committee, bonuses will be based on two
     Performance Measures -- Net Profit and Revenue Growth. In addition to or in
     lieu of one or both of the preceding Performance Measures, the Committee
     may select one or more of the following Performance Measures: earnings per
     share, shipment growth, increase in stock price, return on assets or return
     on equity. The Compensation Committee will set annual Targets for each
     Performance Measure within 90 days after the beginning of each Plan Year
     and such Targets may not be changed thereafter. The Targets may be ratified
     by the Board. Unless within 90 days after the beginning of each Plan Year
     the Committee selects Performance Measures in addition to or in lieu of one
     or both of Net Profit and Revenue Growth, bonuses will be allocated based
     on Attainment of Targets as follows:

     a)   Net Profit earnings is the major corporate Performance Measure and
          shall be the basis of 75% of the bonus allocation.

     b)   An 60% Threshold is set on targeted Net Profit.

     c)   A 150% Maximum is set on targeted Net Profit.

     d)   Revenue Growth is the second major corporate Performance Measure and
          shall be the basis of 25% of the bonus allocation.

     e)   An 60% Threshold is set on targeted Revenue Growth.

     f)   A 150% Maximum is set on targeted Revenue Growth.

6)   Qualifiers on Performance Measures
     ----------------------------------

     a)   The bonus percentage is applied to the Participant's salary paid in
          the Plan (calendar) Year.

     b)   No bonus will be paid for Revenue Growth unless the Threshold Net
          Profit is achieved.

     c)   To receive any award under EICP, a Participant's individual
          performance must be evaluated as at least competent by the
          Compensation Committee.

     d)   The Committee has the discretion to reduce or eliminate any award for
          any reason, including the failure of a participant to earn an award
          under another incentive compensation plan, such as EGICP.

<PAGE>

7)   Bonus Amounts
     -------------
     Actual bonuses will be determined by multiplying the following percentages,
     or a pro-rated portion thereof, by the Participant's annual salary.

<TABLE>
<CAPTION>
                                 Threshold                           Maximum
Position                      (60% of Target)    Target (1)     (150% of Target)
--------------------------------------------------------------------------------
<S>                                <C>             <C>               <C>
Chief Executive Officer            40.0%           100.0%            200.0%
Chief Operating Officer            28.0%            70.0             140.0%
Sr. EVPs, CEO ABX Air, Inc.        26.0%            65.0%            130.0%
EVPs, President ABX Air, Inc.      24.0%            60.0%            120.0%
</TABLE>

8)   Allocations
     -----------
     Unless otherwise determined under section 5, the EICP incentive payment
     percentages for Attainment of Performance Measures are:

                             Chief Executive Officer
<TABLE>
<CAPTION>
                                  100% Corporate
          Goal Attainment      Profit      Revenue      Total
          ---------------------------------------------------
         <S>                   <C>           <C>       <C>

          Threshold            30.00%        10.00%     40.00%
          Target               75.00%        25.00%    100.00%
          Maximum             150.00%        50.00%    200.00%

                           Chief Operating Officer

                                  100% Corporate
          Goal Attainment      Profit      Revenue      Total
          ---------------------------------------------------
          Threshold            21.00%         7.00%     28.00%
          Target               52.50%        17.50%     70.00%
          Maximum             105.00%        35.00%    140.00%

                           Sr. EVPs, CEO ABX Air, Inc.

                                  100% Corporate
          Goal Attainment      Profit      Revenue      Total
          ---------------------------------------------------
          Threshold            19.50%         6.50%     26.00%
          Target               48.75%        16.25%     65.00%
          Maximum              97.50%        32.50%    130.00%

                          EVPs, President ABX Air, Inc.

                                  100% Corporate
          Goal Attainment      Profit      Revenue      Total
          ---------------------------------------------------
          Threshold            18.00%         6.00%     24.00%
          Target               45.00%        15.00%     60.00%
          Maximum              90.00%        30.00%    120.00%
</TABLE>

<PAGE>

9)   Example
     -------
     An example incentive calculation for the CEO level is shown below.

10)  Form of Payment
     ---------------
     Awards shall be paid entirely in cash. Payments will be made as soon as
     practicable after audited performance results are known and approved by the
     Compensation Committee, which should be on or about March 1. Award checks
     are prepared by the Payroll Department and the amounts are subject to tax
     withholding and Capital Accumulation Plan (CAP) deductions.

     If a Participant dies before the end of the Plan Year an amount equal to a
     pro-rated portion thereof as of the date of death shall be paid in one lump
     cash sum to the Participant's Beneficiary.

11)  Limitation on Allocation
     ------------------------
     Notwithstanding any other provision of the Plan, in no circumstances will
     the total amount allocated as an award to a Participant for any Plan Year
     exceed $1,500,000.

12)  Designation of Beneficiaries
     ----------------------------
     Each Participant shall file with the Company a written designation of one
     or more persons as the Beneficiary who shall be entitled to receive the
     amount, if any, payable under the Plan upon the Participant's death. A
     Participant may, from time to time, revoke or change his Beneficiary
     designation without the consent of any prior Beneficiary by filing a new
     designation. The last such designation received shall be controlling,
     provided, however, that no designation, or change or revocation thereof,
     shall be effective unless received by the Company prior to the
     Participant's death, and in no event shall it be effective as of a date
     prior to such receipt.

13)  Absence of Valid Designation
     ----------------------------
     If no such Beneficiary designation is in effect at the time of a
     Participant's death, or if no designated Beneficiary survives the
     Participant, or if such designation conflicts with the law, the Participant
     shall be deemed to have designated the Participant's estate as the
     Participant's Beneficiary and the Participant's estate shall receive the
     payment of the amount, if any, under the Plan upon the Participant's death.
     If the Compensation Committee is in doubt as to the right of any person to
     receive such amount, the Compensation Committee may direct retention of
     such amount, without liability for any interest thereon, until the rights
     thereto are determined or the Compensation Committee may pay such amount to
     any court of appropriate jurisdiction and such payment shall be a complete
     discharge of the liability of the Plan and of Airborne Express therefore.

14)  No Liability of Compensation Committee, Board Members or Officers
     -----------------------------------------------------------------
     No members of the Compensation Committee, Board or Corporate officers shall
     be personally liable by reason of any contract or other instrument executed
     by them or on their behalf nor for any mistake or judgment made in good
     faith, and Airborne shall indemnify and hold harmless each member of the
     Board and each other officer, employee or director of Airborne Express to
     whom any duty or power relating to the administration or interpretation of
     the Plan may be allocated or delegated, against any cost or expense
     (including counsel fees) or liability (including any sum paid in settlement
     of a claim with the approval of the Compensation Committee) arising out of
     any act or omission to act in connection with the Plan unless arising out
     of such person's own fraud or bad faith.

15)  Right to Amend, Suspend or Terminate Plan
     -----------------------------------------
     The Board reserves the right at any time to amend, suspend or terminate the
     Plan in whole or in part and for any reasons and without the consent of any
     Participant or Beneficiary; provided that no such amendment shall adversely
     affect rights to receive any amount to which Participants or Beneficiaries
     have become entitled prior to such amendment. Unless otherwise provided
     herein, any amendment, modification, suspension or termination of any
     provisions of the Plan may be made retroactively.

16)  No Rights to Continued Employment or Bonus
     ------------------------------------------
     Nothing contained in the Plan shall give any employee the right to be
     retained in the employment of Airborne Express or affect the right of
     Airborne Express to dismiss any employee. The adoption of the Plan shall
     not constitute a contract between Airborne Express and any employee. No
     Participant shall receive any right to be granted an award hereunder nor
     shall any such award be considered as compensation under any employee
     benefit plan of Airborne Express except as otherwise determined by Airborne
     Express.

<PAGE>

17)  No Right, Title, or Interest in Assets
     --------------------------------------
     The Participant shall have no right, title, or interest whatsoever in or to
     any investments which Airborne Express may make to aid in meeting its
     obligations under the Plan. Nothing contained in the Plan, and no action
     taken pursuant to its provisions, shall create or be construed to create a
     fiduciary relationship between Airborne Express and any Participant or any
     other person. To the extent that any person acquires a right to receive
     payments from Airborne Express under this Plan, such right shall be no
     greater than the right of an unsecured general creditor of Airborne
     Express.

18)  Unfunded Plan: Governing Law
     ----------------------------
     The Plan is intended to constitute an incentive compensation arrangement
     for a select group of management or highly compensated personnel and all
     rights thereunder shall be governed by and construed in accordance with the
     laws of the State of Washington.

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