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                                                                   EXHIBIT 10.69

                        AMENDMENT TO EMPLOYMENT AGREEMENT

        THIS AMENDMENT TO EMPLOYMENT AGREEMENT (this "Amendment") is made and
entered into as of July 9, 1997, by and between GENE LOGIC INC., a Delaware
Corporation (the "Company"), and ERIC M. EASTMAN ("Executive").

        WHEREAS, the Company and Executive previously entered into an Employment
Agreement dated September 7, 1996 (the "Employment Agreement") which, among
other things, provides for the automatic vesting of all outstanding options to
purchase the Company's Common Stock held by the Executive upon a change of
control of the Company (the "Vesting Provision"); and

        WHEREAS, the Company and Executive desire to amend the Employment
agreement to amend and restate the Vesting Provision.

        NOW, THEREFORE, the parties hereto, in consideration of the mutual
promises and agreements set forth below, hereby agree to amend the Employment
Agreement as follows:

     1.   RESTATEMENT OF VESTING PROVISION. Section 3.1 of the Employment
Agreement shall be amended and restated to read in its entirety as follows:

          "3.1 Incentive Stock Options. Upon commencement of the term of
     employment engaged by this Agreement, the Company shall grant to Eastman
     incentive stock options to purchase 75,000 shares of the Company's Common
     Stock at a purchase price per share of $0.15 per share. While this
     Agreement remains in force, such options shall become exercisable according
     to the following schedule: twenty-five percent (25%) upon the date of
     commencement and thereafter at the rate of 1/36th each month for 36 months
     beginning upon the first anniversary of such date. In the event of: (i) a
     merger or consolidation of the Company with another corporation, not
     including any merger or consolidation if immediately thereafter the
     stockholders of the Company immediately before such transaction own shares
     representing more than 50% of the outstanding voting securities of the
     surviving corporation, (ii) a sale of shares by the stockholders of the
     Company if immediately thereafter the stockholders of the Company
     immediately before such sale own shares representing less than 50% of the
     outstanding voting securities of the surviving corporation, or (iii) a sale
     of all or substantially all of the Company's assets, all options to
     purchase Common Stock of the Company held by Eastman that have not
     previously vested under the terms of the applicable Option Agreements shall
     vest immediately upon the closing of such transaction. In the event of an
     underwritten initial public offering of the Company's Common Stock, to the
     extent at least 80% of the aggregate of the

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     shares subject to outstanding options to purchase Common Stock of the
     Company held by Eastman (other than any such options granted immediately
     prior to and in contemplation of such initial public offering) have not
     previously vested under the terms of the applicable Option Agreements, then
     the vesting of such options shall be accelerated such that 80% of the
     shares subject to each such option shall be vested as of the closing of
     such initial public offering and the remaining 20% of the shares subject to
     each such option shall vest 180 days from the closing of such initial
     public offering. If, in the event of an underwritten initial public
     offering of the Company's Common Stock, 80% or more of the aggregate of the
     shares subject to outstanding options to purchase Common Stock of the
     Company held by Eastman (other than any such options granted immediately
     prior to and in contemplation of such initial public offering) have
     previously vested, then any remaining unvested shares subject to such
     options shall vest 180 days from the closing of such initial public
     offering.

     2.      EFFECTIVE DATE.  This Amendment shall be effective as of the date
of the Employment Agreement. Except as amended herein, or as otherwise agreed to
in writing by the Company and Executive, all terms of the Employment Agreement
shall remain in full force and effect.

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             IN WITNESS WHEREOF, the parties have executed this Amendment to
        Employment Agreement as of the date first above written.

        THE COMPANY:                               EXECUTIVE:

        GENE LOGIC INC.
        a Delaware Corporation

        By: /s/ MICHAEL BRENNAN                      /S/ ERIC M. EASTMAN
           --------------------------              --------------------------
        Title:  President & CEO                           Eric M. Eastman
           --------------------------

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                                                                   EXHIBIT 10.28

            THE REGISTERED HOLDER OF THIS WARRANT, BY ITS ACCEPTANCE
            HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER OR ASSIGN
                     THIS WARRANT EXCEPT AS HEREIN PROVIDED.

                VOID AFTER 5:00 P.M. EASTERN TIME, MARCH 27, 2006

                                     WARRANT

                               FOR THE PURCHASE OF

                       ___________ SHARES OF COMMON STOCK

                                       OF

                                 MIGRATEC, INC.

1.       Warrant.

         THIS CERTIFIES THAT, for $1.00 and other good and valuable
consideration, duly paid by or on behalf of _______________ ("Holder"), as
registered owner of this Warrant, to MigraTec, Inc., a Delaware corporation
("Company"), Holder is entitled, at any time or from time to time at or after
March 27, 2001 ("Commencement Date"), and at or before 5:00 p.m., Eastern Time
March 27, 2006 ("Expiration Date"), but not thereafter, to subscribe for,
purchase and receive, in whole or in part, up to ___________________ shares of
Common Stock of the Company, $.001 par value ("Common Stock"). If the Expiration
Date is a day on which banking institutions are authorized by law to close, then
this Warrant may be exercised on the next succeeding day which is not such a day
in accordance with the terms herein. During the period ending on the Expiration
Date, the Company agrees not to take any action that would terminate the
Warrant. This Warrant is initially exercisable at $0.42 per share of Common
Stock purchased; provided, however, that upon the occurrence of any of the
events specified in Section 6 hereof, the rights granted by this Warrant,
including the exercise price and the number of shares of Common Stock to be
received upon such exercise, shall be adjusted as therein specified. The term
"Exercise Price" shall mean the initial exercise price or the adjusted exercise
price, depending on the context, of a share of Common Stock. The term
"Securities" shall mean the shares of Common Stock issuable upon exercise of
this Warrant.

2.       Exercise.

         2.1 Exercise Form. In order to exercise this Warrant, the exercise form
attached hereto must be duly executed and completed and delivered to the
Company, together with this Warrant and payment of the Exercise Price for the
Securities being purchased. If the subscription rights represented hereby shall
not be exercised at or before 5:00 p.m., Eastern time, on the Expiration Date,
this Warrant shall become and be void without further force or effect, and all
rights represented hereby shall cease and expire.

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         2.2 Legend. Each certificate for Securities purchased under this
Warrant shall bear a legend as follows, unless such Securities have been
registered under the Securities Act of 1933, as amended ("Act"):

         "The securities represented by this certificate have not been
         registered under the Securities Act of 1933, as amended ("Act") or
         applicable state law. The securities may not be offered for sale, sold
         or otherwise transferred except pursuant to an effective registration
         statement under the Act, or pursuant to an exemption from registration
         under the Act and applicable state law."

         2.3 Conversion Right.

                  2.3.1 Determination of Amount. In lieu of the payment of the
Exercise Price in cash, the Holder shall have the right (but not the obligation)
to convert this Warrant, in whole or in part, into Common Stock ("Conversion
Right"), as follows: upon exercise of the Conversion Right, the Company shall
deliver to the Holder (without payment by the Holder of any of the Exercise
Price) that number of shares of Common Stock equal to the quotient obtained by
dividing (x) the "Value" (as defined below) of the portion of the Warrant being
converted at the time the Conversion Right is exercised by (y) the Market Price.
The "Value" of the portion of the Warrant being converted shall equal the
remainder derived from subtracting (a) the Exercise Price multiplied by the
number of shares of Common Stock being converted from (b) the Market Price of
the Common Stock multiplied by the number of shares of Common Stock being
converted. As used herein, the term "Market Price" at any date shall be deemed
to be the last reported sale price of the Common Stock on such date, or, in case
no such reported sale takes place on such day, the average of the last reported
sale prices for the immediately preceding three trading days, in either case as
officially reported by the principal securities exchange on which the Common
Stock is listed or admitted to trading, or, if the Common Stock is not listed or
admitted to trading on any national securities exchange or if any such exchange
on which the Common Stock is listed is not its principal trading market, the
last reported sale price as furnished by the National Association of Securities
Dealers, Inc. ("NASD") through the Nasdaq National Market or SmallCap Market,
or, if applicable, the OTC Bulletin Board, or if the Common Stock is not listed
or admitted to trading on any of the foregoing markets, or similar organization,
as determined in good faith by resolution of the Board of Directors of the
Company, based on the best information available to it.

                  2.3.2 Exercise of Conversion Right. The Conversion Right may
be exercised by the Holder on any business day on or after the Commencement Date
and not later than the Expiration Date by delivering the Warrant with a duly
executed exercise form attached hereto with the conversion section completed to
the Company, exercising the Conversion Right and specifying the total number of
shares of Common Stock the Holder will purchase pursuant to such conversion.

3.       Transfer.

         3.1 General Restrictions. The registered Holder of this Warrant, by its
acceptance hereof, agrees that it will not sell, transfer or assign or
hypothecate this Warrant to anyone except upon compliance with, or pursuant to
exemptions from, applicable securities laws. In order to make any permitted
assignment, the Holder must deliver to the Company the assignment form attached
hereto duly executed and completed, together with this Warrant and payment of
all transfer taxes, if any, payable in connection therewith. The Company shall
immediately transfer this Warrant on the books of the Company and shall execute
and deliver a new Warrant or Warrants of like tenor to the appropriate
assignee(s) expressly evidencing the right to purchase the aggregate number of
shares of Common Stock purchasable hereunder or such portion of such number as
shall be contemplated by any such assignment.

         3.2 Restrictions Imposed by the Securities Act. This Warrant and the
Securities underlying this Warrant shall not be transferred unless and until (i)
the Company has received the opinion of counsel for the

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Holder that such securities may be sold pursuant to an exemption from
registration under the Act, and applicable state law, the availability of which
is established to the reasonable satisfaction of the Company, or (ii) a
registration statement relating to such Securities has been filed by the Company
and declared effective by the Securities and Exchange Commission and compliance
with applicable state law.

4.       New Warrants to be Issued.

         4.1 Partial Exercise or Transfer. Subject to the restrictions in
Section 3 hereof, this Warrant may be exercised or assigned in whole or in part.
In the event of the exercise or assignment hereof in part only, upon surrender
of this Warrant for cancellation, together with the duly executed exercise or
assignment form and funds (or conversion equivalent) sufficient to pay any
Exercise Price and/or transfer tax, the Company shall cause to be delivered to
the Holder without charge a new Warrant of like tenor to this Warrant in the
name of the Holder evidencing the right of the Holder to purchase the aggregate
number of shares of Common Stock and Warrants purchasable hereunder as to which
this Warrant has not been exercised or assigned.

         4.2 Lost Certificate. Upon receipt by the Company of evidence
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant
and of reasonably satisfactory indemnification, the Company shall execute and
deliver a new Warrant of like tenor and date. Any such new Warrant executed and
delivered as a result of such loss, theft, mutilation or destruction shall
constitute a substitute contractual obligation on the part of the Company.

5.       Registration Rights.

         5.1      Demand Registration.

                  5.1.1 Grant of Right. The Company, upon written demand
("Initial Demand Notice") of the Holder(s) of more than 50% ("Majority Holders")
of the Warrants and/or the underlying Common Stock (collectively "Registrable
Securities"), agrees to register on one occasion, all or any portion of the
Warrants and/or the underlying Common Stock requested by the Majority Holders in
the Initial Demand Notice. Upon the request by the Majority Holders as set forth
in the preceding sentence, the Company will file a registration statement
covering the Registrable Securities within thirty days after receipt of the
Initial Demand Notice and use its best efforts to have such registration
statement declared effective as soon as possible thereafter. Should this
registration or the effectiveness thereof be delayed by the Company, the
exercisability of the Warrants shall be extended for a period of time equal to
the delay in registering the Registrable Securities. Moreover, if the Company
willfully fails to comply with the provisions of this Section 5.1.1, the Company
shall, in addition to any other equitable or other relief available to the
Holder(s), be liable for any and all incidental, special and consequential
damages sustained by the Holder(s). The demand for registration may be made at
any time during a period of seven years beginning one year from the Commencement
Date. The Company covenants and agrees to give written notice of its receipt of
any Initial Demand Notice by any Holder(s) to all other registered Holders of
the Warrants and/or the Registerable Securities within ten days from the date of
the receipt of any such Initial Demand Notice.

                  5.1.2 Terms. The Company shall bear all fees and expenses
attendant to registering the Registrable Securities if such registration of the
Registrable Securities of any Holder relates to an Initial Demand Notice from
the Majority Holders, including any filing fees payable to the National
Association of Securities Dealers, Inc., but the Holders shall pay any and all
underwriting commissions and the expenses of any legal counsel selected by the
Holders to represent them in connection with the sale of the Registrable
Securities. The Company agrees to use its reasonable best efforts to qualify or
register the Registrable Securities in such States as are reasonably requested
by the Majority Holder(s); provided, however, that in no event shall the Company
be required to register the Registrable Securities in a State in which such
registration

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would cause (i) the Company to be obligated to qualify to do business in such
State, or would subject the Company to taxation as a foreign corporation doing
business in such jurisdiction or (ii) the principal stockholders of the Company
to be obligated to escrow their shares of capital stock of the Company. The
Company shall cause any registration statement filed pursuant to the demand
rights granted under Section 5.1.1 to remain effective for a period of nine
consecutive months from the effective date of such registration statement unless
the registration statement is on Form S-3 in which case the Company shall cause
the registration statement to remain effective until all the Registrable
Securities are sold.

         5.2      "Piggy-Back" Registration.

                  5.2.1 Grant of Right. The Holders of this Warrant for so long
as they hold any of the Registrable Securities shall have the right from the
Commencement Date to include all or any part of the Registrable Securities as
part of any registration of securities filed by the Company (other than in
connection with a transaction contemplated by Rule 145(a) promulgated under the
Act or pursuant to Form S-8 or any equivalent form), including those
registrations filed prior to the date hereof but which have not yet been
declared effective; provided, however, that if, in the written opinion of the
Company's managing underwriter or underwriters, if any, for such offering (the
"Underwriter"), the inclusion of the Registrable Securities, when added to the
securities being registered by the Company or the selling stockholder(s), will
exceed the maximum amount of the Company's securities which can be marketed (i)
at a price reasonably related to their then current market value, or (ii)
without materially and adversely affecting the entire offering, the Company
shall nevertheless register all or any portion of the Registrable Securities
required to be so registered but such Registrable Securities shall not be sold
by the Holders until 90 days after the registration statement for such offering
has become effective; and provided further that, if any securities are
registered for sale on behalf of other stockholders in such offering and such
stockholders have not agreed to defer such sale until the expiration of such 90
day period, the number of securities to be sold by all stockholders in such
public offering during such 90 day period shall be apportioned pro rata among
all such selling stockholders, including all holders of the Registrable
Securities, according to the total amount of securities of the Company proposed
to be sold by said selling stockholders, including all holders of the
Registrable Securities.

                  5.2.2 Terms. The Company shall bear all fees and expenses
attendant to registering the Registrable Securities, including any filing fees
payable to the National Association of Securities Dealers, Inc., but the Holders
shall pay any and all underwriting commissions and the expenses of any legal
counsel selected by the Holders to represent them in connection with the sale of
the Registrable Securities. In the event of such a proposed registration, the
Company shall furnish the then Holders of outstanding Registrable Securities
with not less than thirty days written notice prior to the proposed date of
filing of such registration statement. Such notice to the Holders shall continue
to be given for each registration statement filed by the Company until such time
as all of the Registrable Securities have been sold by the Holder. The holders
of the Registrable Securities shall exercise the "piggy-back" rights provided
for herein by giving written notice, within twenty days of the receipt of the
Company's notice of its intention to file a registration statement. The Company
shall cause any registration statement filed pursuant to the above "piggy-back"
rights to remain effective until all Registrable Securities thereunder have been
sold, or are freely saleable, without restriction, under an exemption from the
registration requirements. Nothing contained in this Warrant shall be construed
as requiring any Holder to exercise this Warrant or any part thereof prior to
the initial filing of any registration statement or the effectiveness thereof.

         5.3      General Terms

                  5.3.1    Indemnification.

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                           (a) The Company shall indemnify the Holder(s) of the
Registrable Securities to be sold pursuant to any registration statement
hereunder and any underwriter or person deemed to be an underwriter under the
Act and each person, if any, who controls such Holders or underwriters or
persons deemed to be underwriters within the meaning of Section 15 of the Act or
Section 20(a) of the Securities Exchange Act of 1934, as amended ("Exchange
Act"), against all loss, claim, damage, expense or liability (including all
reasonable attorneys' fees and other expenses reasonably incurred in
investigating, preparing or defending against any claim whatsoever) to which any
of them may become subject under the Act, the Exchange Act or otherwise, arising
from such registration statement. The Holder(s) of the Registrable Securities to
be sold pursuant to such registration statement, and their successors and
assigns, shall severally, and not jointly, indemnify the Company, against all
loss, claim, damage, expense or liability (including all reasonable attorneys'
fees and other expenses reasonably incurred in investigating, preparing or
defending against any claim whatsoever) to which they may become subject under
the Act, the Exchange Act or otherwise, arising from information furnished by or
on behalf of such Holders, in writing, for specific inclusion in such
registration statement.

                           (b) If any action is brought against a party hereto,
("Indemnified Party") in respect of which indemnity may be sought against the
other party ("Indemnifying Party"), such Indemnified Party shall promptly notify
Indemnifying Party in writing of the institution of such action and Indemnifying
Party shall assume the defense of such action, including the employment and fees
of counsel reasonably satisfactory to the Indemnified Party. Such Indemnified
Party shall have the right to employ its or their own counsel in any such case,
but the fees and expenses of such counsel shall be at the expense of such
Indemnified Party unless (i) the employment of such counsel shall have been
authorized in writing by Indemnifying Party in connection with the defense of
such action, or (ii) Indemnifying Party shall not have employed counsel to
defend such action, or (iii) such Indemnified Party shall have been advised by
counsel that there may be one or more legal defenses available to it which may
result in a conflict between the Indemnified Party and Indemnifying Party (in
which case Indemnifying Party shall not have the right to direct the defense of
such action on behalf of the Indemnified Party), in any of which events, the
reasonable fees and expenses of not more than one additional firm of attorneys
designated in writing by the Indemnified Party shall be borne by Indemnifying
Party. Notwithstanding anything to the contrary contained herein, if Indemnified
Party shall assume the defense of such action as provided above, Indemnifying
Party shall not be liable for any settlement of any such action effected without
its written consent.

                           (c) If the indemnification or reimbursement provided
for hereunder is finally judicially determined by a court of competent
jurisdiction to be unavailable to an Indemnified Party (other than as a
consequence of a final judicial determination of willful misconduct, bad faith
or gross negligence of such Indemnified Party), then Indemnifying Party agrees,
in lieu of indemnifying such Indemnified Party, to contribute to the amount paid
or payable by such Indemnified Party (i) in such proportion as is appropriate to
reflect the relative benefits received, or sought to be received, by
Indemnifying Party on the one hand and by such Indemnified Party on the other or
(ii) if (but only if) the allocation provided in clause (i) of this sentence is
not permitted by applicable law, in such proportion as is appropriate to reflect
not only the relative benefits referred to in such clause (i) but also the
relative fault of Indemnifying Party and of such Indemnified Party; provided,
however, that in no event shall the aggregate amount contributed by a Holder
exceed the profit, if any, earned by such Holder as a result of the exercise by
him of the Warrants and the sale by him of the underlying shares of Common
Stock.

                           (d) The rights accorded to Indemnified Parties
hereunder shall be in addition to any rights that any Indemnified Party may have
at common law, by separate agreement or otherwise.

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                  5.3.2 Exercise of Warrants. Nothing contained in this Warrant
shall be construed as requiring the Holder(s) to exercise their Warrants prior
to or after the initial filing of any registration statement or the
effectiveness thereof.

                  5.3.3 Documents Delivered to Holders. The Company shall
furnish to each Holder participating in any of the foregoing offerings and to
each Underwriter of any such offering, if any, a signed counterpart, addressed
to such Holder or Underwriter, of (i) an opinion of counsel to the Company,
dated the effective date of such registration statement (and, if such
registration includes an underwritten public offering, an opinion dated the date
of the closing under any underwriting agreement related thereto), and (ii) a
"cold comfort" letter dated the effective date of such registration statement
(and, if such registration includes an underwritten public offering, a letter
dated the date of the closing under the underwriting agreement) signed by the
independent public accountants who have issued a report on the Company's
financial statements included in such registration statement, in each case
covering substantially the same matters with respect to such registration
statement (and the prospectus included therein) and, in the case of such
accountants' letter, with respect to events subsequent to the date of such
financial statements, as are customarily covered in opinions of issuer's counsel
and in accountants' letters delivered to underwriters in underwritten public
offerings of securities. The Company shall also deliver promptly to each Holder
participating in the offering requesting the correspondence and memoranda
described below and to the managing underwriter copies of all correspondence
between the Commission and the Company, its counsel or auditors and all
memoranda relating to discussions with the Commission or its staff with respect
to the registration statement and permit each Holder and underwriter to do such
investigation, upon reasonable advance notice, with respect to information
contained in or omitted from the registration statement as it deems reasonably
necessary to comply with applicable securities laws or rules of the NASD. Such
investigation shall include access to books, records and properties and
opportunities to discuss the business of the Company with its officers and
independent auditors, all to such reasonable extent and at such reasonable times
and as often as any such Holder shall reasonably request.

6.       Adjustments

         6.1 Adjustments to Exercise Price and Number of Securities. The
Exercise Price and the number of shares of Common Stock underlying this Warrant
shall be subject to adjustment from time to time as hereinafter set forth:

                  6.1.1 Stock Dividends - Recapitalization, Reclassification,
Split-Ups. If, after the date hereof, and subject to the provisions of Section
6.2 below, the number of outstanding shares of Common Stock is increased by a
stock dividend on the Common Stock payable in shares of Common Stock or by a
split-up, recapitalization or reclassification of shares of Common Stock or
other similar event, then, on the effective date thereof, the number of shares
of Common Stock issuable on exercise of this Warrant shall be increased in
proportion to such increase in outstanding shares.

                  6.1.2 Aggregation of Shares. If after the date hereof, and
subject to the provisions of Section 6.2, the number of outstanding shares of
Common Stock is decreased by a consolidation, combination or reclassification of
shares of Common Stock or other similar event, then, upon the effective date
thereof, the number of shares of Common Stock issuable on exercise of this
Warrant shall be decreased in proportion to such decrease in outstanding shares.

                  6.1.3 Adjustments in Exercise Price. Whenever the number of
shares of Common Stock purchasable upon the exercise of this Warrant is
adjusted, as provided in this Section 6.1, the Exercise Price shall be adjusted
(to the nearest cent) by multiplying such Exercise Price immediately prior to
such adjustment by a fraction (x) the numerator of which shall be the number of
shares of Common Stock purchasable upon

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the exercise of this Warrant immediately prior to such adjustment, and (y) the
denominator of which shall be the number of shares of Common Stock so
purchasable immediately thereafter.

                  6.1.4 Replacement of Securities upon Reorganization, etc. In
case of any reclassification or reorganization of the outstanding shares of
Common Stock other than a change covered by Section 6.1.1 hereof or which solely
affects the par value of such shares of Common Stock, or in the case of any
merger or consolidation of the Company with or into another corporation (other
than a consolidation or merger in which the Company is the continuing
corporation and which does not result in any reclassification or reorganization
of the outstanding shares of Common Stock), or in the case of any sale or
conveyance to another corporation or entity of the property of the Company as an
entirety or substantially as an entirety in connection with which the Company is
dissolved, the Holder of this Warrant shall have the right thereafter (until the
expiration of the right of exercise of this Warrant) to receive upon the
exercise hereof, for the same aggregate Exercise Price payable hereunder
immediately prior to such event, the kind and amount of shares of stock or other
securities or property (including cash) receivable upon such reclassification,
reorganization, merger or consolidation, or upon a dissolution following any
such sale or other transfer, by a Holder of the number of shares of Common Stock
of the Company obtainable upon exercise of this Warrant immediately prior to
such event; and if any reclassification also results in a change in shares of
Common Stock covered by Sections 6.1.1 or 6.1.2, then such adjustment shall be
made pursuant to Sections 6.1.1, 6.1.2, 6.1.3 and this Section 6.1.4. The
provisions of this Section 6.1.4 shall similarly apply to successive
reclassifications, reorganizations, mergers or consolidations, sales or other
transfers.

                  6.1.5 Changes in Form of Warrant. This form of Warrant need
not be changed because of any change pursuant to this Section, and Warrants
issued after such change may state the same Exercise Price and the same number
of shares of Common Stock and Warrants as are stated in the Warrants initially
issued pursuant to this Agreement. The acceptance by any Holder of the issuance
of new Warrants reflecting a required or permissive change shall not be deemed
to waive any rights to a prior adjustment or the computation thereof.

         6.2 Elimination of Fractional Interests. The Company shall not be
required to issue certificates representing fractions of shares of Common Stock
upon the exercise of this Warrant, nor shall it be required to issue scrip or
pay cash in lieu of any fractional interests, it being the intent of the parties
that all fractional interests shall be eliminated by rounding any fraction up to
the nearest whole number of shares of Common Stock or other securities,
properties or rights.

7. Reservation and Listing. The Company shall at all times reserve and keep
available out of its authorized shares of Common Stock, solely for the purpose
of issuance upon exercise of this Warrant, such number of shares of Common Stock
or other securities, properties or rights as shall be issuable upon the exercise
thereof. The Company covenants and agrees that, upon exercise of the Warrants
and payment of the Exercise Price therefor, all shares of Common Stock and other
securities issuable upon such exercise shall be duly and validly issued, fully
paid and non-assessable and not subject to preemptive rights of any stockholder.
As long as the Warrants shall be outstanding, the Company shall use its best
efforts to cause all shares of Common Stock issuable upon exercise of the
Warrants to be listed (subject to official notice of issuance) on all securities
exchanges (or, if applicable on Nasdaq) on which the Common Stock is then listed
and/or quoted.

8. Certain Notice Requirements.

         8.1 Holder's Right to Receive Notice. Nothing herein shall be construed
as conferring upon the Holders the right to vote or consent or to receive notice
as a stockholder for the election of directors or any other matter, or as having
any rights whatsoever as a stockholder of the Company. If, however, at any time
prior to the expiration of the Warrants and their exercise, any of the events
described in Section 8.2 shall occur,

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then, in one or more of said events, the Company shall give written notice of
such event at least fifteen days prior to the date fixed as a record date or the
date of closing the transfer books for the determination of the stockholders
entitled to such dividend, distribution, conversion or exchange of securities or
subscription rights, or entitled to vote on such proposed dissolution,
liquidation, winding up or sale. Such notice shall specify such record date or
the date of the closing of the transfer books, as the case may be.

         8.2 Events Requiring Notice. The Company shall be required to give the
notice described in this Section 8 upon one or more of the following events: (i)
if the Company shall take a record of the holders of its shares of Common Stock
for the purpose of entitling them to receive a dividend or distribution, or (ii)
the Company shall offer to all the holders of its Common Stock any additional
shares of capital stock of the Company or securities convertible into or
exchangeable for shares of capital stock of the Company, or any option, right or
warrant to subscribe therefor, or (iii) a merger or reorganization in which the
Company is not the surviving party, or (iv) a dissolution, liquidation or
winding up of the Company (other than in connection with a consolidation or
merger) or a sale of all or substantially all of its property, assets and
business shall be proposed.

         8.3 Notice of Change in Exercise Price. The Company shall, promptly
after an event requiring a change in the Exercise Price pursuant to Section 6
hereof, send notice to the Holders of such event and change ("Price Notice").
The Price Notice shall describe the event causing the change and the method of
calculating same and shall be certified as being true and accurate by the
Company's President and Chief Financial Officer.

         8.4 Transmittal of Notices. All notices, requests, consents and other
communications under this Warrant shall be in writing and shall be deemed to
have been duly made on the date of delivery if delivered personally or sent by
overnight courier, with acknowledgment of receipt by the party to which notice
is given, or on the fifth day after mailing if mailed to the party to whom
notice is to be given, by registered or certified mail, return receipt
requested, postage prepaid and properly addressed as follows: (i) if to the
registered Holder of this Warrant, to the address of such Holder as shown on the
books of the Company, or (ii) if to the Company, to its principal executive
office.

9.       Miscellaneous.

         9.1 Headings. The headings contained herein are for the sole purpose of
convenience of reference, and shall not in any way limit or affect the meaning
or interpretation of any of the terms or provisions of this Warrant.

         9.2 Entire Agreement. This Warrant (together with the other agreements
and documents being delivered pursuant to or in connection with this Warrant)
constitutes the entire agreement of the parties hereto with respect to the
subject matter hereof, and supersedes all prior agreements and understandings of
the parties, oral and written, with respect to the subject matter hereof.

         9.3 Binding Effect. This Warrant shall inure solely to the benefit of
and shall be binding upon, the Holder and the Company and their respective
successors, legal representatives and assigns, and no other person shall have or
be construed to have any legal or equitable right, remedy or claim under or in
respect of or by virtue of this Warrant or any provisions herein contained.

         9.4 Governing Law; Submission to Jurisdiction. This Warrant shall be
governed by and construed and enforced in accordance with the law of the State
of New York, without giving effect to conflict of laws. The Company hereby
agrees that any action, proceeding or claim against it arising out of, or
relating in any way to this Warrant shall be brought and enforced in the courts
of the State of New York or of the United

                                       8
<PAGE>   9

States of America for the Southern District of New York, and irrevocably submits
to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby
waives any objection to such exclusive jurisdiction and that such courts
represent an inconvenient forum. Any process or summons to be served upon the
Company may be served by transmitting a copy thereof by registered or certified
mail, return receipt requested, postage prepaid, addressed to it at the address
set forth in Section 8 hereof. Such mailing shall be deemed personal service and
shall be legal and binding upon the Company in any action, proceeding or claim.
The Company agrees that the prevailing party(ies) in any such action shall be
entitled to recover from the other party(ies) all of its reasonable attorneys'
fees and expenses relating to such action or proceeding and/or incurred in
connection with the preparation therefor.

         9.5 Waiver, Etc. The failure of the Company or the Holder to at any
time enforce any of the provisions of this Warrant shall not be deemed or
construed to be a waiver of any such provision, nor to in any way affect the
validity of this Warrant or any provision hereof or the right of the Company or
any Holder to thereafter enforce each and every provision of this Warrant. No
waiver of any breach, non-compliance or non-fulfillment of any of the provisions
of this Warrant shall be effective unless set forth in a written instrument
executed by the party or parties against whom or which enforcement of such
waiver is sought; and no waiver of any such breach, non-compliance or
non-fulfillment shall be construed or deemed to be a waiver of any other or
subsequent breach, non-compliance or non-fulfillment.

                                       9
<PAGE>   10

         IN WITNESS WHEREOF, the Company has caused this Warrant to be signed by
its duly authorized officer as of the 27th day of March, 2001.

                            MIGRATEC, INC.

                                  By: /s/ T. Ulrich Brechbuhl
                                     -------------------------------------------
                                  Name: Ulrich Brechbuhl
                                  Title: President and Chief Financial Officer

                                       10
<PAGE>   11

Form to be used to exercise Warrant:

MigraTec, Inc.
11494 Luna Road, Suite 100
Dallas, Texas  75234

Date:  _____________________, 20___

                  The undersigned hereby elects irrevocably to exercise the
within Warrant and to purchase ________ shares of Common Stock of
_________________________ and hereby makes payment of $____________ (at the rate
of $_________ per share of Common Stock) in payment of the Exercise Price
pursuant thereto. Please issue the Common Stock as to which this Warrant is
exercised in accordance with the instructions given below.

                                       or

                  The undersigned hereby elects irrevocably to convert its right
to purchase ____________ shares of Common Stock purchasable under the within
Warrant into __________ shares of Common Stock of ________________________
(based on a "Market Price" of $________ per share of Common Stock). Please issue
the Common Stock in accordance with the instructions given below.

                                   --------------------------------------
                                   Signature

---------------------------
Signature Guaranteed

                  NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE
NAME AS WRITTEN UPON THE FACE OF THE WITHIN WARRANT IN EVERY PARTICULAR WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A
BANK, OTHER THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING
MEMBERSHIP ON A REGISTERED NATIONAL SECURITIES EXCHANGE.

                   INSTRUCTIONS FOR REGISTRATION OF SECURITIES

Name
           ------------------------------------------------------
                           (Print in Block Letters)

Address
       ----------------------------------------------------

                                       11
<PAGE>   12

Form to be used to assign Warrant:

                                   ASSIGNMENT

                  (To be executed by the registered Holder to effect a transfer
of the within Warrant):

                  FOR VALUE RECEIVED, ________________________________ does
hereby sell, assign and transfer unto _________________________________ the
right to purchase _____________________ shares of Common Stock of
_________________________________ ("Company") evidenced by the within Warrant
and does hereby authorize the Company to transfer such right on the books of the
Company.

Dated:                      , 20
       ---------------------    ----

                                    --------------------------------------
                                    Signature

                  NOTICE: THE SIGNATURE TO THIS FORM MUST CORRESPOND WITH THE
NAME AS WRITTEN UPON THE FACE OF THE WITHIN WARRANT IN EVERY PARTICULAR WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A
BANK, OTHER THAN A SAVINGS BANK, OR BY A TRUST COMPANY OR BY A FIRM HAVING
MEMBERSHIP ON A REGISTERED NATIONAL SECURITIES EXCHANGE.

                                       12

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