Document:

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                                                                    Exhibit 10.5

                     Amendment dated February 10, 2000 to
  the Agreement between the Company and Kurt Mueller, dated December 31, 1998

Kurt Mueller
Stuberstrasse 11A
80638 Munchen
GERMANY

Dear Mr. Mueller:

You have resigned from the Board of Directors of Dataware Technologies, Inc.
effective February 8, 2000.  This letter confirms the amendments to the
Agreement dated December 31, 1998 between Dataware Technologies, Inc. and
yourself, Kurt Mueller, to which we have agreed in connection with your
resignation.  Except as amended hereby, the Agreement will continue in force.

1.  We confirm that your outstanding stock options under Dataware's Equity
    Incentive Plan (the "Plan") will not terminate as a result of your
    resignation as a director but will remain exercisable until the respective
    expiration dates provided therein. Notwithstanding your resignation, subject
    to Section 3(d):

     (a)  to the extent they are not already exercisable, all such options will
          continue to become exercisable on the dates set forth in the
          respective options; provided that no option will become exercisable as
          to any additional shares following your death; and

     (b)  to the extent not already provided, vesting of such options will be
          accelerated, such that all such stock options shall become exercisable
          in full, upon a "change of control" of Dataware, as defined in the
          Plan.

2.  Your outstanding stock options under the Plan are also hereby amended to
    provide that they, or any portion thereof, may be exercised on a "net
    exercise" basis in lieu of paying the exercise price in cash. You (or your
    transferee) must provide the Company with notice of such election, stating
    the portion of the option to be exercised, in which event the Company will
    issue the number of shares of common stock computed using the following
    formula:

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

     Where:   X = the number of shares of common stock to be issued by Dataware;
              Y = the number of shares of common stock otherwise issuable upon
                  exercise of this option or a portion thereof
              A = the fair market value (defined as the closing price per share
                  on the last trading date prior to the date of exercise) of one
                  share of the common stock at the date of exercise
              B = the exercise price per share of the option
<PAGE>

3.  Your outstanding stock options under the Plan are also hereby amended to
    provide that you may sell or transfer any or all of your then-vested options
    in one or more transactions to a single third party, subject to the
    following conditions:

          (a)  in the opinion of counsel acceptable in form and substance to
               counsel to the Company, such sale or transfer is exempt from the
               registration requirements of the Securities Act of 1933 and any
               applicable state securities laws;

          (b)  the buyer/transferee shall have no right to sell, transfer,
               assign or otherwise dispose of any of such options, by operation
               of law or otherwise, except by exercising them in accordance with
               their terms;

          (c)  the buyer/transferee shall execute such documents as Dataware may
               require to (i) support the opinion referred to in subsection 3(a)
               above, (ii) evidence his or her understanding that the resale of
               the shares issued on exercise of the options will be restricted
               to the extent required by applicable securities laws; and (iii)
               evidence his or her agreement to be bound by the terms hereof and
               of the Equity Incentive Plan; and

          (d)  Subsections 1(a) and (b) shall not apply to any options following
               their sale or transfer (so that no unvested options that have
               been transferred shall thereafter become exercisable).

     Any attempted sale or other transfer not complying with the foregoing shall
     be void.

4.  Dataware is willing to agree to the foregoing in consideration of the
    following agreements by you: You agree that you shall cooperate fully with
    Dataware in the defense or prosecution of any claims or actions now pending
    or that may be brought in the future against or on behalf of Dataware that
    relate to events transpiring while you were employed by or a director of
    Dataware. Your cooperation shall include but not be limited to being
    available to meet with counsel to prepare for discovery or trial and to act
    as a witness on behalf of Dataware. You also shall cooperate fully with
    Dataware in connection with any investigation or review by any governmental
    authority relating to events transpiring while you were employed or a
    director of by Dataware. The amount of time that you shall be required to be
    personally present in the United States for the foregoing activities on
    behalf of Dataware shall not exceed 24 days between now and March 1, 2002.
    Dataware will reimburse you for any reasonable out-of-pocket expenses you
    incur in connection with performing these obligations, in accordance with
    its normal reimbursement policy.

Since this is a binding legal document, you should consider it carefully before
signing.  You should consult with an attorney if you wish to do so.  If you wish
to accept the above amendment as set out in this letter please sign the enclosed
copy of this letter and return it to me.

Sincerely,

/s/ David Mahoney

David Mahoney
President and Chief Executive Officer

                                       2
<PAGE>

I have read the foregoing terms, fully understand them and freely accept them.

/s/ Kurt Mueller                        2/10/00
----------------------                  ----------------------
Kurt Mueller                            Date

                                       3<PAGE>

                                                                    Exhibit 10.6

February 24, 2000

Mr. Jeffrey O. Nyweide
Dataware Technologies, Inc.
One Canal Park
Cambridge, MA 02141

Dear Jeff:

This letter will confirm the agreements that have been reached concerning the
termination of your employment by Dataware Technologies, Inc.:

        1.  Your base salary will be adjusted to $200,000 per year effective
            January 1, 2000.

        2.  You will complete projects that you are currently working on or turn
            them over to others if that is more appropriate, you will complete
            the matters listed in the "projects to be completed list" provided
            to you by the CEO, Dave Mahoney, and you will undertake new,
            special, projects as requested by Mr. Mahoney. Dataware will pay
            invoices up to $10,000 from a career coaching/outplacement agency
            for services provided to you between now and May 15, 2001. Dataware
            will provide references for you upon request if and to the extent
            that the substance thereof is mutually agreed between you and Mr.
            Mahoney. Dataware will reimburse you in accordance with its normal
            policy for any approved business expenses for which you have
            submitted complete reimbursement requests by April 15, 2000.
            Dataware will continue to provide an office for you in Cambridge
            through March 15, 2000. Dataware also will cover the reasonable
            lease and telecommunications costs of an offsite office for you
            through May 15, 2000, but shall not have any obligation to reimburse
            you for any other expenses after the transition period, except those
            expenses incurred during service as a director of Dataware or as
            requested by Dataware.

        3.  Your employment by Dataware will continue until the earlier of (i)
            May 15, 2001, (ii) the termination of your employment by you or by
            Dataware for cause, or (iii) the date you begin employment with
            another company. However, you will be on a leave of absence after
            March 1, 2000. If your employment terminates before May 15, 2001,
            Dataware will pay you severance by continuing to pay you the base
            salary described in Section 1, payable in accordance with Dataware's
            normal compensation policies, until May 15, 2001. Your severance
            will not be reduced by the amount of any earnings you receive from
            other employment. It is your affirmative obligation to notify
            Dataware if you accept other employment. As used in this paragraph,
            "cause" means (i) your commission of a felony; (ii) your continued
            failure (other than any such failure resulting from your incapacity
            due to physical or mental illness) to perform your obligations to
            the Company (as described in this Agreement) after the Company has
            delivered written notice of such failure; (iii) your falsification
            of any records, documents or systems of the Company or any other
            conduct that is materially harmful to the Company or any of its
            customers or suppliers; or (iv) your violation of any material
            provision of any confidentiality, assignment of invention,
            noncompetition or similar agreement with the Company.

        4.  Dataware may request that you perform special services for it
            between March 1, 2000 and May 15, 2001. You have no obligation to
            provide any special services but, if you do, you will be compensated
            at the rate of $3000 per day for time actually worked. In addition,
            you agree that you
<PAGE>

Jeffrey O. Nyweide
February 24, 2000
Page 2 of 4

            will promptly upon request (and without compensation) respond to
            reasonable requests not requiring you to travel by providing any
            information you have that relates to the periods of your employment
            and/or your service as a director of Dataware.

        5.  You will not be eligible to receive stock options or other
            compensation payable to nonemployee directors for service on the
            Board of Directors during any period through May 31, 2001, that you
            are a director of Dataware.

        6.  You hereby resign as trustee of Dataware's 401(k) plan effective
            immediately.

        7.  You may continue to participate in the Dataware medical and dental
            benefits plan at your current levels at Dataware's expense until May
            31, 2001. You will be eligible to continue on COBRA at your own
            expense for an additional 18 months beyond May 31, 2001 if you make
            a timely election to do so. Your Dataware life and disability
            insurance coverage will end on April 15, 2000. Dataware will
            reimburse you up to $5,500 of premiums paid by you between now and
            May 15, 2001 for life and disability insurance.

        8.  On April 15, 2000, Dataware will pay you the cash equivalent of the
            vacation that you have accrued through that date in accordance with
            its vacation policy. You may retain your current laptop computer
            (subject to your compliance with your nondisclosure agreement with
            Dataware). Dataware will provide you a company voice mailbox until
            December 31, 2000, and an email address until April 15, 2000. After
            April 15, 2000, you will not be entitled to receive any fringe or
            other employee benefits except as provided in this Agreement.

        9.  Your outstanding stock options under the Dataware Equity Incentive
            Plan (the "Plan"), including the options to purchase 40,000 shares
            granted on December 14, 1999, at an exercise price of $6.53, will
            continue to vest in accordance with their respective terms as long
            as you are still active with the company as a director. To the
            extent not already provided, vesting of such options will be
            accelerated such that all such stock options shall become
            exercisable in full upon a "change in control" of Dataware, as
            defined in the Plan, or upon your resignation as a director of
            Dataware.

       10.  Your outstanding stock options under the Plan are also hereby
            amended to provide that they, or any portion thereof, may be
            exercised on a "net exercise" basis, i.e., by delivering a portion
            of such options to Dataware for cancellation in lieu of paying the
            exercise price in cash. You must provide Dataware with notice of
            such election, stating the portion of the option to be exercised, in
            which event Dataware will issue the number of shares of common stock
            computed using the following formula:

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

              Where:   X =   the number of shares of common stock to be issued
                             by Dataware;
                       Y =   the number of shares of common stock otherwise
                             issuable upon exercise of this option or a portion
                             thereof
                       A =   the fair market value (defined as the closing price
                             per share on the last trading date prior to the
                             date of exercise) of one share of the common stock
                             at the date of exercise
                       B =   the exercise price per share of the option

       11.  In consideration of the foregoing, you shall execute non-
            competition, non-disclosure and assignment of inventions agreements
            in Dataware's standard form at the time of executing this Agreement,
            and you shall be bound by such agreements during your employment and
            thereafter, as provided in this Agreement. Your obligations under
            your non-competition agreement shall continue for one year
<PAGE>

Jeffrey O. Nyweide
February 24, 2000
Page 3 of 4

      after the later of the termination of your employment or your resignation
      from Dataware's Board of Directors, and your obligations under your non-
      disclosure and assignment of inventions agreements shall continue as
      provided therein. In addition, you agree that during and after your
      employment, you shall cooperate fully with Dataware in the defense or
      prosecution of any claims or actions now pending or that may be brought in
      the future against or on behalf of Dataware that relate to events
      transpiring while you were employed by or a director of Dataware. Your
      cooperation shall include but not be limited to being reasonably available
      to meet with counsel to prepare for discovery or trial and to act as a
      witness on behalf of Dataware. During and after your employment, you also
      shall cooperate fully with Dataware in connection with any investigation
      or review by any governmental authority relating to events transpiring
      while you were employed by Dataware. Dataware will reimburse you for any
      reasonable out-of-pocket expenses you incur in connection with performing
      these obligations, in accordance with its normal reimbursement policy .

 12.  Representations. You represent that: you understand the various claims
      that could have been asserted by you under the laws of Massachusetts, the
      Age Discrimination in Employment Act, Title VII of the Civil Rights Act of
      1964, the Retirement Income Security Act, the Fair Labor Standards Act,
      the National Labor Relations Act, the Equal Pay Act, or the Americans with
      Disabilities Act, and other such similar laws; that you have read this
      Agreement carefully and understand all of its provisions; that you
      understand you have the right to and are advised to consult an attorney
      concerning this Agreement and that to the extent, if any, that you
      desired, you availed yourself of this right; and that you have had at
      least twenty-one (21) days to consider whether to sign this Agreement. In
      addition, you have seven (7) days after signing this Agreement to revoke
      your acceptance of this Agreement.

 13.  In exchange for the payments and the other benefits outlined above, you
      hereby fully, forever, irrevocably and unconditionally release, remise and
      discharge Dataware from any and all manner of claims, charges, complaints,
      demands, actions, causes of action, suits, rights, debts, dues, sums of
      money, costs, losses, accounts, reckonings, covenants, contracts,
      promises, liabilities and expenses (including attorney's fees and costs),
      of every kind and nature whatsoever, whether known or unknown, either at
      law in equity, or mixed which you ever had, now have or may have by reason
      of any matter or thing which has happened, developed, or occurred before
      the signing of this agreement, including, but not in limitation of the
      foregoing general term, and claims, asserted or unasserted, arising from
      your employment with or separation from Dataware, and specifically
      including any claims you may have under any federal or state labor
      employment or discrimination laws, including but limited to, Title VII of
      the Civil Rights Act of 1964, as amended, the Age Discrimination in
      Employment Act of 1967, as amended, the Fair Labor Standards Act of 1938,
      as amended, the Americans with Disabilities Act of 1992, Chapter 151B of
      the Massachusetts General Laws, Sections 24A-24J of Chapter 149 of the
      Massachusetts General Laws, the Massachusetts Civil Rights Act, the
      Massachusetts Equal Rights Law, or at common law, but excluding (i) any
                                                        -------------
      claims under this agreement, (ii) any and all rights you have as a
      stockholder or holder of stock options of Dataware, (iii) your rights to
      indemnification by reason of your service as a director, officer, or agent
      of Dataware under its Restated Certificate of Incorporation and Bylaws or
      otherwise, or (iv) any and all other rights you have as a director of
      Dataware. Subject to the foregoing exclusions, it is expressly agreed and
      understood that this release is a general release.

      Furthermore, you agree that, in exchange for the payments and the other
      benefits outlined above, on and effective as of May 15, 2001, you shall
      release Dataware from all liability with respect to all periods ending on
      that date on the same terms as this paragraph 13, and you will execute an
      additional instrument of general release confirming such release.

 14.  This Agreement shall be governed by Massachusetts law. This Agreement
      contains the entire agreement between you and Dataware concerning payment
      of severance or other compensation following the termination of your
      employment and supersedes all prior agreements and
<PAGE>

Jeffrey O. Nyweide
February 24, 2000
Page 4 of 4

      understandings, written or oral, including without limitation the letter
      agreement dated October 28, 1988, which is hereby terminated.

Please sign and return one copy of this Agreement to indicate your acceptance of
and agreement with its terms, and retain the other copy for your records.  This
Agreement shall not become effective or enforceable until the seven-day period
referred to in Paragraph 12 has expired.

Sincerely,

/s/ David Mahoney

David Mahoney
President and CEO

I have read the foregoing terms, fully understand them and freely accept them.

/s/ Jeffrey O. Nyweide                  2/24/00
---------------------------             --------------------------
Jeffrey O. Nyweide                      Date

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