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                                                                   EXHIBIT 10.58

                                NOVA CORPORATION

                      1996 EMPLOYEES STOCK INCENTIVE PLAN
                   AMENDED AND RESTATED AS OF AUGUST 3, 2000

                                    PREAMBLE

     WHEREAS, effective December 28, 1995, NOVA Corporation (the "Company")
established the NOVA Corporation 1996 Employees Stock Incentive Plan (the
"Plan") through which the Company may award options to purchase the Common Stock
of the Company, restricted stock and stock appreciation rights to officers and
employees of the Company and its affiliates; and

     WHEREAS, the Company desires to amend the Plan in order to provide for
certain administrative modifications and to incorporate all preceding
amendments;

     NOW, THEREFORE, the Company hereby amends and restates the NOVA Corporation
1996 Employees Stock Incentive Plan (the "Plan"), as of August 3, 2000:

                                   ARTICLE 1
                                    Purpose

     1.1  General Purpose.  The purpose of this Plan is to further the growth
and development of the Company and Related Entities by encouraging employees to
obtain a proprietary interest in the Company by owning or sharing in the
appreciation of its stock.  The Company and Related Entities intend that the
Plan will provide their employees with an added incentive to continue in their
employ and will stimulate their efforts in promoting the growth, efficiency and
profitability of the Company and Related Entities.  The Company and Related
Entities also intend that the Plan will afford them a means of attracting to
their service persons of outstanding quality.

     1.2  Intended Tax Effects of Stock Rights.  It is intended that part of the
Plan qualify as an ISO (as hereinafter defined) plan and that any option granted
in accordance with such portion of the Plan qualify as an ISO, all within the
meaning of Code (S)422.  The tax effects of any NQSO (as hereinafter defined),
Stock Appreciation Rights or Restricted Stock granted hereunder should be
determined under Code (S)83. In addition, it is intended that the Committee
shall interpret and administer the Plan in compliance with Code (S)162(m) to
the extent necessary to preserve the Company's tax deduction for certain
excessive employee remuneration, as defined in Code (S)162.
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                                   ARTICLE 2
                                  Definitions

     2.1  1933 Act shall mean the Securities Act of 1933, as amended.

     2.2  1934 Act shall mean the Securities Exchange Act of 1934, as amended.

     2.3  Beneficiary shall mean, with respect to an Optionee, Restricted Stock
Recipient or SAR Recipient, the individual, individuals, entity or entities to
whom the Optionee's Options, Restricted Stock Recipient's Restricted Stock or
the SAR's Recipient's Stock Appreciation Rights shall be transferred upon the
Optionee's, Restricted Stock Recipient's or SAR Recipient's death (i.e., the
Optionee's, Restricted Stock Recipient's or SAR Recipient's Beneficiary).

          (a) Designation of Beneficiary.  An Optionee's, Restricted Recipient's
     or SAR Recipient's Beneficiary shall be the individual, individuals, entity
     or entities whom the Optionee, Restricted Stock Recipient or SAR Recipient
     last designated in writing as such Optionee's, Restricted Stock Recipient's
     or SAR Recipient's Beneficiary hereunder.  An Optionee, Restricted Stock
     Recipient or SAR Recipient shall designate his or her original Beneficiary
     in writing on his or her Option Agreement, Restricted Stock Agreement or
     SAR Agreement.  Any subsequent modification of the Optionee's, Restricted
     Stock Recipient's or SAR Recipient's Beneficiary shall be in a written,
     executed and notarized letter addressed to the Committee and shall be
     effective when the Committee receives it and in its sole discretion accepts
     it.

          (b) No Designated Beneficiary.  If, at any time, an Optionee,
     Restricted Stock Recipient or SAR Recipient has not validly designated a
     Beneficiary, or the Beneficiary whom the Optionee, Restricted Stock
     Recipient or SAR Recipient designates is no longer living, or is no longer
     in existence, at the time of the Optionee's, Restricted Stock Recipient's
     or SAR Recipient's death, then the Optionee's, Restricted Stock Recipient's
     or SAR Recipient's Beneficiary shall be deemed to be the individual or
     individuals in the first of the following classes of individuals with one
     or more members of such class surviving at the Optionee's, Restricted Stock
     Recipient's or SAR Recipient's death, and in the absence thereof, the
     Optionee's, Restricted Stock Recipient's or SAR Recipient's estate:  (A)
     the Optionee's, Restricted Stock Recipient's or SAR Recipient's surviving
     spouse; or (B) the Optionee's, Restricted Stock Recipient's or SAR
     Recipient's then living lineal descendants, per stirpes.

          (c) Contingent Beneficiaries.  An Optionee, Restricted Stock Recipient
     or SAR Recipient may designate a contingent Beneficiary to receive the
     Optionee's Option, Restricted Stock Recipient's Restricted Stock or SAR
     Recipient's Stock Appreciation Right in the event that the Optionee's,
     Restricted Stock Recipient's or SAR Recipient's original Beneficiary is no
     longer living, or is no longer in existence, at the time of the Optionee's,
     Restricted Stock Recipient's or SAR Recipient's death; otherwise, in the
     event a Beneficiary is no longer living, or is no longer in existence, at
     the time of the Optionee's, Restricted Stock Recipient's or SAR Recipient's
     death, then the individual or

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     individuals specified in subsection (b) above shall be the Optionee's,
     Restricted Stock Recipient's or SAR Recipient's Beneficiary.

     2.4  Board shall mean the Board of Directors of the Company.

     2.5  Cause shall mean an act or acts by an individual involving personal
dishonesty, incompetence, willful misconduct, breach of fiduciary duty involving
personal profit, breach of contract with the Company or Related Entity,
violation of Company or Related Entity policy, intentional failure to perform
stated duties, willful violation of any law, rule or regulation (other than
traffic violations or similar offenses), or the unlawful trading in the
securities of the Company, a Related Company or of another corporation based on
information gained as a result of the performance of services for the Company, a
Related Entity or such other Corporation.

     2.6  Change of Control shall mean the occurrence of any one of the
following events:

          (a) Acquisition By Person of Substantial Percentage.  The acquisition
     by any individual or entity (including "affiliates" and "associates" of
     such individual or entity, but excluding the Company, any "parent" or
     "subsidiary" of the Company, or any employee benefit plan of the Company or
     of any "parent" or "subsidiary" of the Company) of a sufficient number of
     shares of Common Stock, or securities convertible into shares of Common
     Stock whether through direct acquisition of shares or by merger,
     consolidation, share exchange, reclassification of securities or
     recapitalization of or involving the Company or any "parent" or
     "subsidiary" of the Company or similar event to constitute the individual
     or entity the actual or beneficial owner (within the meaning of the term as
     it is used in Section 13(d) of the 1934 Act and the rules promulgated
     thereunder) of 30% or more of the Common Stock, but only if such
     acquisition occurs without the prior approval of the Company's Continuing
     Directors;

          (b) Substantial Change of Board Members.  The Company's Continuing
     Directors fail to constitute at least a majority of the members of the
     Board;

          (c) Disposition of Assets.  Any sale or other transfer of all or
     substantially all of the assets of the Company or any "significant
     subsidiary" (as Rule 1-02 of the Regulation S-X promulgated under the 1934
     Act defines such term) without the prior approval of the Company's
     Continuing Directors; or

          (d) Transactions Requiring Regulatory Approval.  The filing by an
     individual or entity of an application with any regulatory authority having
     jurisdiction over the ownership of the Company in connection with any
     transaction by which such individual or entity is to acquire 20% or more of
     the combined voting power of the Company's then outstanding securities
     without the prior approval of the Company's Continuing Directors.

For purposes of this Plan, the terms "affiliate," "associate," "parent" and
"subsidiary" shall have the respective meanings ascribed to such terms in Rule
12b-2 under Section 12 of the 1934 Act.  For purposes of this subsection 2.6,
the term "Continuing Directors" shall mean the individuals who, as of the date
hereof, constitute members of the Board; provided, however, that any

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individual becoming a member of the Board after the date hereof whose election,
or nomination for election by the Company's shareholders, was approved by a vote
of at least a majority of the Continuing Directors then shall be considered as a
Continuing Director, but excluding for this purpose any such individual whose
initial assumption of membership on the Board occurs as a result of either an
actual or threatened election contest or other actual or threatened solicitation
of proxies or consents by or on behalf of an individual or entity other than the
Board.

     2.7  Code shall mean the Internal Revenue Code of 1986, as amended.

     2.8  Committee shall mean the committee the Board appoints to administer
and interpret the Plan in accordance with Article 3 below.

     2.9  Common Stock shall mean the common stock, par value $0.01 per share,
of the Company.

     2.10  Company shall mean NOVA Corporation.

     2.11  Director shall mean individuals who are serving as a member of the
Board (i.e., a director of the Company) or who are serving as a member of the
board of directors or comparable group of any Related Entity.

     2.12  Disability shall mean, with respect to an individual, the total and
permanent disability of such individual such that he is unable to engage in any
substantial gainful activity by reason of any medically determinable physical or
mental impairment which can be expected to result in death or which has lasted
or can be expected to last for a continuous period of not less than 12 months.

     2.13  Effective Date shall mean the date on which the Board originally
approved this Plan, subject to shareholder approval which was obtained.

     2.14  Exercise Price shall mean, with respect to a Stock Appreciation
Right, a specified price for shares of Common Stock used as a base in
determining the amount of appreciation in the share price.

     2.15  Fair Market Value of the Common Stock as of a date of determination
shall mean the following:

           (a) Stock Listed and Shares Traded. If the Common Stock is listed and
     traded on a national securities exchange (as the 1934 Act defines the term)
     or on the NASDAQ National Market System on the date of determination, the
     Fair Market Value per share shall be the closing price of a share of the
     Common Stock on said national securities exchange or National Market System
     on the date of determination. If the Common Stock is traded in the over-
     the-counter market, the Fair Market Value per share shall be the average
     of the closing bid and asked prices on the date of determination.

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          (b) Stock Listed But No Shares Traded.  If the Common Stock is listed
     on a national securities exchange or on the National Market System but no
     Common Stock is traded on the date of determination but was traded on dates
     within a reasonable period before the date of determination, the Fair
     Market Value per share shall be the closing price of a share of Common
     Stock on the most recent date before the date of determination.  If the
     Common Stock is regularly traded in the over-the-counter market but no
     Common Stock is traded on the date of determination (or if records of such
     trades are unavailable or burdensome to obtain) but Common Stock was traded
     on dates within a reasonable period before the date of determination, the
     Fair Market Value per share shall be the average of the closing bid and
     asked prices of the Common Stock on the most recent date before the date of
     determination.

          (c) Stock Not Listed.  If the Common Stock is not listed on a national
     securities exchange or on the National Market System and is not regularly
     traded in the over-the-counter market, then the Committee shall determine
     the Fair Market Value per share from all relevant available facts, which
     may include the average of the closing bid and ask prices reflected in the
     over-the-counter market on a date within a reasonable period either before
     or after the date of determination or opinions of independent experts as to
     value and may take into account any recent sales and purchases of such
     Common Stock to the extent they are representative.

          (d) Good Faith Determination.  Notwithstanding the preceding
     provisions of this Section 2.15 to the contrary, the Committee may use a
     method of determining Fair Market Value per share different from those
     specified above to determine Fair Market Value for purposes of pricing an
     option if the Committee determines that such different method of
     determining Fair Market Value is reasonable, based on all pertinent facts
     and circumstances, and any such determination to use such different method
     is made in good faith by the Committee.

The Committee's determination of Fair Market Value, which shall be made pursuant
to the foregoing provisions, shall be final and binding for all purposes of this
Plan.  The Committee will determine Fair Market Value without regard to any
restriction other than a restriction which, by its terms, will never lapse.

     2.16 ISO shall mean an incentive stock option within the meaning of Code
(S)422(b).

     2.17 NQSO shall mean a nonqualified option that is not an ISO.

     2.18 Option shall mean an ISO or NQSO, as applicable, granted to an
individual pursuant to the terms and provisions of this Plan that entitles the
holder to purchase from the Company a stated number of shares of Common Stock at
the Option Price set forth in the Option Agreement and that specifies the terms
and conditions of the Option.

     2.19 Option Agreement shall mean a written agreement that the Company and
an Optionee execute and date, evidencing an Option granted under the terms and
provisions of this

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Plan, setting forth the terms and conditions of such Option, and specifying the
name of the Optionee and the number of shares of Common Stock subject to such
Option.

     2.20  Option Price shall mean the purchase price of the shares of Common
Stock underlying an Option.

     2.21  Optionee shall mean an individual who is granted an Option pursuant
to the terms and provisions of this Plan.

     2.22  Plan shall mean this NOVA Corporation 1996 Employees Stock Incentive
Plan Amended and Restated as of August 3, 2000.

     2.23  Related Entity shall mean (i) any entity that, directly or
indirectly, through one or more intermediaries, controls, or is controlled by,
or is under common control with the Company (including any such entity that
becomes such after the adoption of this Plan), or (ii) any entity that the Board
designates as a participating company in the Plan.

     2.24  Restricted Stock shall mean Common Stock subject to a Restriction
Agreement between the Restricted Stock Recipient and the Company, whereby the
Restricted Stock Recipient has immediate rights of ownership in the shares of
Common Stock but subject to restrictions in accordance with the terms and
provisions of this Plan and the Restriction Agreement and further subject to
forfeiture by the Restricted Stock Recipient until the earlier of (a) the time
such restrictions lapse or are satisfied or (b) the time such shares are
forfeited.

     2.25  Restricted Stock Recipient shall mean an individual who is granted
Restricted Stock pursuant to the terms and provisions of this Plan.

     2.26  Restriction Agreement shall mean a written agreement the Company and
a Restricted Stock Recipient execute and date, evidencing restrictions placed on
the ownership of Restricted Stock by a Restricted Stock Recipient.

     2.27  SAR Agreement shall mean a written agreement the Company and a SAR
Recipient execute and date, evidencing the grant of a Stock Appreciation Right
under the terms and provisions of this Plan, and setting forth the terms and
conditions of such Stock Appreciation Right, the name of the SAR Recipient and
the number of shares of Common Stock subject to such Stock Appreciation Right.
For a Stock Appreciation Right related to an Option, the Option Agreement may
contain the aforementioned terms and conditions and be the SAR Agreement.

     2.28  SAR Recipient shall mean an individual who is granted Stock
Appreciation Rights pursuant to the terms and provisions of this Plan.

     2.29  Stock Appreciation Right shall mean a right granted to a SAR
Recipient (whether or not granted independently of an Option) pursuant to the
terms and provisions of this Plan pursuant to which the SAR Recipient, without
payment to the Company (except for any applicable withholding taxes), receives
cash, shares of Common Stock, or a combination thereof in an amount equal to the
excess of the Fair Market Value per share on the date on which the

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Stock Appreciation Right is exercised over the Exercise Price per share as
provided in the SAR Agreement.

     2.30 Stock Rights shall mean Options and/or Restricted Stock and/or Stock
Appreciation Rights.

                                   ARTICLE 3
                                Administration

     3.1  General Administration.  The Committee shall administer and interpret
the Plan.  Subject to the express provisions of the Plan, the Committee shall
have the authority to interpret the Plan, to prescribe, amend and rescind rules
and regulations relating to the Plan, to determine the individuals to receive
Options, Restricted Stock and Stock Appreciation Rights and the terms and
provisions of the Option Agreements, SAR Agreements and Restriction Agreements
(as applicable) by which Stock Rights shall be evidenced (which shall not be
inconsistent with the terms of the Plan), and to make all other determinations
necessary or advisable for the administration of the Plan, all of which
determinations shall be final, binding and conclusive.  The express grant in the
Plan of any specific power to the Committee shall not be construed as limiting
any power or authority of the Committee.  The Company shall bear all expenses of
administering this Plan.

     3.2  Appointment.  The Board shall appoint the Committee from among its
members to serve at the pleasure of the Board.  The Board from time to time may
remove members from, or add members to, the Committee and shall fill all
vacancies thereon.  The Committee at all times shall be composed of two or more
directors who shall meet the following requirements hereinafter described.

          (a) Disinterested Administration Rule.  During the period any director
     is serving on the Committee, he must be a director who (i) is not currently
     an officer (as defined in Rule 16a-1(f) of the 1934 Act) of the Company or
     a parent or subsidiary of the Company, or otherwise currently an employee
     of the Company or a parent or subsidiary of the Company; (ii) does not
     receive compensation, either directly or indirectly, from the Company or a
     parent or subsidiary of the Company, for services rendered as a consultant
     or in any capacity other than as a director except for an amount that does
     not exceed the dollar amount for which disclosure would be required
     pursuant to Rule 404(a); (iii) does not possess an interest in any other
     transaction for which disclosure would be required pursuant to Rule 404(a);
     and (iv) is not engaged in a business relationship for which disclosure
     would be required pursuant to Rule 404(b).  The requirements of this
     subsection are intended to comply with the "Non-Employee Director"
     requirements of Rule 16b-3 of the 1934 Act or any successor regulation, and
     shall be interpreted and construed in a manner which assures compliance
     with the "Non-Employee Director" requirement of such regulation.

          (b) Outside Director Rule.  In addition to the requirements in
     subsection (a) above, no director serving on the Committee may be (i) a
     current employee of the Company (or any corporation affiliated with the
     Company under Code (S)1504); (ii) a

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     former employee of the Company (or any corporation affiliated with the
     Company under Code (S) 1504) receiving compensation for prior services
     (other than benefits under a tax-qualified retirement plan) during each
     taxable year during which the director serves on the Committee; (iii) an
     officer or have ever been an officer of the Company (or any corporation
     affiliated with the Company under Code (S) 1504); or (iii) receiving
     remuneration (directly or indirectly) from the Company (or any corporation
     affiliated with the Company under Code 1504) in any capacity other than as
     a director. The requirements of this subsection are intended to comply with
     the "outside director" requirements of Prop. Treas. Reg. (S) 1.162-27(e)(3)
     or any successor regulation, and shall be interpreted and construed in a
     manner which assures compliance with the "outside director" requirement of
     Code (S) 162(m)(4)(C)(i).

     3.3  Organization.  The Committee may select one of its members as its
chairman and shall hold its meetings at such times and at such places as it
shall deem advisable.  A majority of the Committee shall constitute a quorum,
and such majority shall determine its actions.  The Committee shall keep minutes
of its proceedings and shall report the same to the Board at the meeting next
succeeding.

     3.4  Indemnification.  In addition to such other rights of indemnification
as they have as directors or as members of the Committee, the members of the
Committee, to the extent applicable law permits, shall be indemnified by the
Company against reasonable expenses (including, without limitation, attorneys'
fees) that they or any of them actually and necessarily incur in connection with
the defense of any action, suit or proceeding, or in connection with any appeal,
to which they or any of them may be a party by reason of any action taken or not
taken under or in connection with the Plan or any Options granted hereunder, and
against all amounts they or any of them pay in settlement thereof (provided such
settlement is approved to the extent required by and in the manner provided by
the articles or certificate of incorporation or the bylaws of the Company
relating to indemnification of directors) or pay in satisfaction of a judgment
in any such action, suit or proceeding, except in relation to matters as to
which it shall be adjudged in such action, suit or proceeding that such
Committee member or members did not act in good faith and in a manner he or they
reasonably believed to be in or not opposed to the best interest of the Company.

                                   ARTICLE 4
                                     Stock

     The stock subject to the Stock Rights and other provisions of the Plan
shall be authorized but unissued or reacquired shares of Common Stock.  Subject
to readjustment in accordance with Article 9, the total number of shares of
Common Stock which may be granted to, or for which Options may be granted to,
individuals participating in the Plan shall not exceed in the aggregate
6,000,000 shares of Common Stock.  Notwithstanding the foregoing, shares of
Common Stock allocable to the unexercised portion of any expired or terminated
Option or Stock Appreciation Right or shares of Restricted Stock returned to the
Company by forfeiture again may become subject to Stock Rights under the Plan.

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                                   ARTICLE 5
               Eligibility to Receive and Grant of Stock Rights

     5.1  Individual Eligible for Grants of Stock Rights.  The individuals
eligible to receive Stock Rights hereunder shall be employees of the Company or
any Related Entity, including such employees who are also Directors of the
Company or any Related Entity.  However, no non-employee Directors shall be
eligible to receive any Stock Rights pursuant to this Plan.  Only employees of
the Company and its parent corporation or any subsidiary corporations (including
any such parent or subsidiaries that become such after the adoption of this
Plan) within the meaning of subsections (e) and (f) of Code (S) 424 shall be
eligible to receive ISOs.

     5.2  Grants of Stock Rights.  Subject to the provisions of the Plan, the
Committee shall have the authority and sole discretion to determine and
designate, from time to time, those individuals (from among the employees
eligible for a grant of Stock Rights under the Plan pursuant to Section 5.1
above) to whom Stock Rights will actually be granted, the Option Price of the
shares covered by any Options, the Exercise Price of the shares of any Stock
Appreciation Rights granted, the manner in and conditions under which Options
and Stock Appreciation Rights are exercisable (including, without limitation,
any limitations or restrictions thereon), and the manner in and conditions under
which shares of Restricted Stock shall vest, and the time or times at which
Stock Rights shall be granted.  In making such determinations, the Committee may
take into account the nature of the services rendered by the respective
employees to whom Stock Rights may be granted, their present and potential
contributions to the Company's success and such other factors as the Committee,
in its sole discretion, shall deem relevant.  In its authorization of the
granting of an Option hereunder, the Committee shall specify the name of the
Optionee, the number of shares subject to such Option and whether such Option is
an ISO or a NQSO.  In its authorization of the granting of Stock Appreciation
Rights hereunder, the Committee shall specify the name of the SAR Recipient, the
number of shares for which Stock Appreciation Rights are granted, and whether
upon exercise, such Stock Appreciation Rights shall be paid in cash, shares of
Common Stock, or a combination thereof.  In its authorization of an award of
Restricted Stock hereunder, the Committee shall specify the name of the
Restricted Stock Recipient, the number of shares of Restricted Stock awarded and
the restrictions to which such Restricted Stock shall be subject.  The Committee
may, at any time, grant new Stock Rights to an Optionee, a SAR Recipient or a
Restricted Stock Recipient who previously has received Stock Rights, whether
such Stock Rights still are outstanding, have been previously exercised in whole
or in part, have expired or are canceled in connection with the issuance of new
Stock Rights.  No individual shall have any claim or right to receive Stock
Rights under the Plan.

     5.3  Performance Goals.  Subject to the provisions of the Plan, the
Committee shall have the authority and sole discretion to approve any and all
grants or awards of Stock Rights under the Plan.  Specifically, the Committee
shall, in compliance with Code (S) 162(m), make any grant of (i) Restricted
Stock, (ii) an Option with an Exercise Price of less than Fair Market Value as
of the grant date, or (iii) Stock Appreciation Rights only if the intended
Optionee has attained specific performance goals established by the Committee.
The Committee shall disclose these performance goals to the shareholders and
receive shareholder approval of these goals prior to awarding such a grant.  The
Committee shall certify by written instrument that an Optionee has

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satisfied the appropriate performance goals necessary to receive such a grant
prior to awarding such grant.

     5.4  Limitation on Exercisability of ISOs.  Notwithstanding anything herein
to the contrary, the aggregate Fair Market Value of ISOs that are granted to any
employee under the Plan or any other stock option plan of the Company and its
parent corporation and subsidiary corporations that are first exercisable in any
one calendar year shall not exceed $100,000.  The Committee shall interpret and
administer the limitations set forth in this Section in accordance with Code (S)
422(d).

     5.5  Restriction on Grant of Stock Options and Stock Appreciation Rights.
No more than 200,000 shares of Common Stock may be made subject to the aggregate
Options or Stock Appreciation Rights granted during a calendar year to any one
individual.

                                   ARTICLE 6
                        Terms and Conditions of Options

     Options granted hereunder and Option Agreements shall comply with and be
subject to the following terms and conditions:

     6.1  Requirement of Option Agreement.  Upon the grant of an Option
hereunder, the Committee shall prepare (or cause to be prepared) an Option
Agreement.  The Committee shall present such Option Agreement to the Optionee.
Upon execution of such Option Agreement by the Optionee, such Option shall be
deemed to have been granted effective as of the date of grant.  The failure of
the Optionee to execute the Option Agreement within 30 days after the date of
the receipt of same shall render the Option Agreement and the underlying Option
null and void ab initio.

     6.2  Optionee and Number of Shares.  Each Option Agreement shall state the
name of the Optionee and the total number of shares of the Common Stock to which
it pertains, the Option Price, the Beneficiary of the Optionee and the date as
of which the Option was granted under this Plan.

     6.3  Vesting.  Each Option shall first become exercisable (i.e., vested)
with respect to such portions of the shares subject to such Option as are
specified in the schedule set forth hereinbelow:

          (a) An Option may be exercised in whole at any time or in part from
     time to time at such times and in compliance with such requirements as the
     Committee shall determine and set forth in the Option Agreement.  An Option
     granted under the Plan may be exercised with respect to a number of whole
     shares less than the full number of shares for which the Option could be
     exercised.  A partial exercise of the Option shall not affect the right to
     exercise the Option from time to time in accordance with this Plan and the
     Option Agreement with respect to the remaining shares of Common Stock
     subject to the Option.

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          (b) Notwithstanding the provisions of subsection (a) above, all
     Options previously granted to an Optionee shall become immediately vested
     and exerciseable with respect to 100 percent of the shares of Common Stock
     subject to the Option in the event that, while the Optionee is an employee
     of the Company or a Related Entity, the Optionee incurs a Disability or
     dies or there is a Change of Control.

          (c) Other than as provided above, if an Optionee ceases to be an
     employee of the Company and any Related Entity, his rights with regard to
     all non-vested Options that are not then exercisable at the time of
     termination of employment shall cease immediately.

     6.4  Option Price.  Except as otherwise set forth in this Section 6.4, the
Option Price of the shares of Common Stock underlying each Option shall be the
Fair Market Value of the Common Stock on the date the Option is granted, unless
the Committee otherwise determines.  In no event shall the Option Price of any
ISO be less than 100% (110% in the case of ISOs of Optionees who own more than
ten percent of the voting power of all classes of stock of either the Company or
any parent corporation or any subsidiary corporation (within the meaning of
subsections (e) and (f) of Code (S) 424)) of the Fair Market Value of the Common
Stock on the date the Option is granted.  In addition, the Option Price of any
NQSO shall not be less than 75% of the Fair Market Value of the Common Stock on
the date the Option is granted.  The date as of which the Committee granted the
Option as specified in the Option Agreement shall be considered the date on
which such Option is granted.

     6.5  Terms of Options.  Terms of Options granted under the Plan shall
commence on the date of grant and shall expire on such date as the Committee may
determine for each Option; provided, in no event shall any Option be exercisable
after ten years (five years in the case of ISOs granted to Optionees who own
more than ten percent of the voting power of all classes of stock of either the
Company or its parent corporation or any subsidiary corporations) from the date
the Option is granted.  No Option shall be granted hereunder after ten years
from the earlier of (a) the date the shareholders approve the Plan or (b) the
date the Board adopts the Plan.

     6.6  Terms of Exercise.  The exercise of an Option may be for less than the
full number of shares of Common Stock subject to such Option, but such exercise
shall not be made for less than (i) 50 shares or (ii) the number of shares that
are presently exercisable, if such number is less than 50 shares.  Subject to
the other restrictions on exercise set forth herein, the Optionee may exercise
the unexercised portion of an Option at a later date.

     6.7  Method of Exercise.  All Options granted hereunder shall be exercised
by giving written notice directed to the Secretary of the Company at its
principal place of business or to such other person as the Committee may direct.
Each notice of exercise shall identify the Option which the Optionee is
exercising (in whole or in part) and shall be accompanied by payment of the
Option Price for the number of shares specified in such notice, by any documents
Section 10.1 requires and by any applicable tax withholdings.  The Company shall
make delivery of such shares within a reasonable period of time; provided, if
any law or regulation requires the Company to take any action (including, but
not limited to, the filing of a registration statement

                                       11
<PAGE>

under the 1933 Act and causing such registration statement to become effective)
with respect to the shares specified in such notice before the issuance thereof,
then the date of delivery of such shares shall be extended for the period
necessary to take such action.

     6.8  Medium and Time of Payment.

          (a) The Option Price shall be payable upon the exercise of the Option
     in an amount equal to the number of shares then being purchased times the
     per share Option Price.  Payment, at the election of the Optionee (or his
     Beneficiary as provided in subjection (c) of Section 6.9), shall be (A) in
     cash; (B)  by delivery to the Company of a certificate or certificates for
     shares of the Common Stock duly endorsed for transfer to the Company with
     signature guaranteed by a member firm of a national securities exchange or
     by a national or state bank or a federally chartered thrift institution (or
     guaranteed or notarized in such other manner as the Committee may require);
     or (C) by a combination of (A) and (B).

          (b) If all or part of the Option Price is paid by delivery of shares
     of Common Stock, on the date of such payment the Optionee must have held
     such shares for at least six months; and the value of such Common Stock
     (which shall be the Fair Market Value of such shares of Common Stock on the
     date of exercise) shall be less than or equal to the total Option Price.
     If the Optionee delivers shares of Common Stock with a value that is less
     than the total Option Price, then the Optionee shall pay the balance of the
     total Option Price in cash as provided in subsection (a) above.

          (c) In addition to the payment of the purchase price of the shares
     then being purchased, an Optionee also shall pay in cash (or have withheld
     from his pay) an amount equal to, or, by instructing the Company to retain
     shares of Common Stock upon the exercise of the Option with a Fair Market
     Value equal to, the amount, if any, which the Company or Related Entity at
     the time of exercise is required to withhold under the income tax or
     Federal Insurance Contributions Act tax withholding provisions of the Code,
     of the income tax laws of the state of the Optionee's residence, and of any
     other applicable law.

     6.9  Effect of Termination of Employment, Disability or Death.  Except as
provided in subsections (a), (b) and (c) below, no Option shall be exercisable
unless the Optionee thereof shall have been an employee of the Company or any
Related Entity from the date of the granting of the Option until the date of
exercise; provided, the Committee, in its sole discretion, may waive the
application of this Section with respect to any NQSOs granted hereunder and
instead may provide a different expiration date or dates in a NQSO Option
Agreement.

          (a) Termination of Employment.  In the event an Optionee ceases to be
     an employee of the Company and any Related Entity for any reason other than
     death or Disability, the Option or unexercised portion thereof granted to
     him shall terminate on and shall not be exercisable after the earliest to
     occur of (i) the expiration date of the Option, (ii) three months after
     termination of employment or (iii) the date on which the Company or Related
     Entity gives notice to such Optionee of termination of employment

                                       12
<PAGE>

     if the Company or a Related Entity is terminating the employment of an
     Optionee for Cause (an Optionee's resignation in anticipation of
     termination of employment by the Company or Related Entity for Cause shall
     constitute a notice of termination by the Company or Related Entity);
     provided, the Committee may provide in the Option Agreement that such
     Option or any unexercised portion thereof shall terminate sooner.
     Notwithstanding the foregoing, in the event that an Optionee's employment
     terminates for a reason other than death or Disability at any time after a
     Change of Control, the term of all Options of that Optionee shall be
     extended through the end of the three-month period immediately following
     the date of such termination; provided, this extension shall apply to ISOs
     only to the extent it does not cause the term of such ISOs to exceed the
     maximum term Code (S) 422 permits or does not cause such ISOs to lose their
     status as ISOs. Prior to the earlier of the dates specified in the
     preceding sentences of this subsection (a), the Option shall be exercisable
     only in accordance with its terms and only for the number of shares
     exercisable on the date of termination of employment.

          (b) Disability.  Upon the termination of an Optionee's employment due
     to Disability, any Option or unexercised portion thereof granted to him
     which is otherwise exercisable shall terminate on and shall not be
     exercisable after the earlier to occur of (i) the expiration date of such
     Option, or (ii) one year after the date on which such Optionee ceases to be
     an employee of the Company and any Related Company due to Disability;
     provided, the Committee may provide in the Option Agreement that such
     Option or any unexercised portion thereof shall terminate sooner.  Prior to
     the earlier of such dates, such Option shall be exercisable only in
     accordance with its terms and only for the number of shares exercisable on
     the date such Optionee's employment ceases due to Disability.

          (c) Death.  In the event of the death of the Optionee (i) while he is
     an employee of the Company or any Related Entity, (ii) within three months
     after the date on which such Optionee's employment terminated (for a reason
     other than Cause) as provided in subsection (a) above, or (iii) within one
     year after the date on which such Optionee's employment terminated due to
     his Disability as provided in subsection (b), his Beneficiary may exercise
     any Option or unexercised portion thereof granted to him which is otherwise
     exercisable at any time prior to the expiration of one year from the date
     of death of such Optionee, but in no event later than the date of
     expiration of the Option; provided, the Committee may provide in the Option
     Agreement that such Option or any unexercised portion thereof shall
     terminate sooner.  Such exercise shall be effected pursuant to the terms of
     this Section 6.9 as if such Beneficiary is the named Optionee.  Prior to
     the earliest of such dates, such Option shall be exercisable only in
     accordance with its terms and only for the number of shares exercisable on
     the date such Optionee's employment ceases due to death.

          (d) ISOs Converted  to NQSOs.  In the event an Optionee ceases to be
     an employee of the Company or any parent corporation or subsidiary
     corporation and does not exercise an ISO within three months of such
     cessation of employment but continues as an employee of another Related
     Entity, the ISO shall be treated as an NQSO after such time.

                                       13
<PAGE>

     6.10 Restrictions on Transfer and Exercise of Options.  No Option shall be
assignable or transferable by the Optionee except (i) by transfer to a
Beneficiary upon the death of the Optionee, or (ii) by transfer from the
Optionee to a spouse, lineal ascendant or lineal descendant of the Optionee or a
spouse of a lineal ascendant or lineal descendant of the Optionee or to one or
more trusts for the benefit of the Optionee's spouse, lineal ascendants or
lineal descendants or a spouse of a lineal ascendant or lineal descendant of the
Optionee or a partnership in which such individuals are the only partners and
only if the Optionee does not receive any consideration for the transfer and the
Committee expressly approves the transfer; and any purported transfer (other
than as excepted above) shall be null and void.  The holder of a transferred
option shall be bound by the same terms and conditions that governed the Option
during the period the Optionee held it; provided, however, that such transferee
may not transfer such Option except by will or the laws of descent or
distribution.  Any such transfer shall be evidenced by an appropriate written
document the Optionee executes, and a copy thereof shall be delivered to the
Committee on or prior to the effective date of the transfer.  After the death of
an Optionee, and upon the death of the Optionee's Beneficiary, an Option shall
be transferred only by will or by the laws of descent and distribution.  During
the lifetime of an Optionee, only he can exercise the Option; provided, however,
that in the event the Optionee is incapacitated and unable to exercise the
Option, such Optionee's legal guardian, legal representative, fiduciary or other
representative whom the Committee deems appropriate based on applicable facts
and circumstances can exercise such Option.

     6.11 Rights as a Shareholder.  An Optionee shall have no rights as a
shareholder with respect to shares of Common Stock covered by his Option until
the date of issuance of the shares to him and only after the Option Price of
such shares and all applicable tax withholdings are paid in full.  Unless
specified in Article 9, no adjustment will be made for dividends or other rights
for which the record date is prior to the date of such issuance.  The Company
may include on any certificates representing shares of Common Stock issued
pursuant to an Option such legends referring to any representations,
restrictions or any other applicable statements as the Company, in its
discretion, shall deem appropriate.

     6.12 No Obligation to Exercise Option.  The granting of an Option shall
impose no obligation upon the Optionee to exercise such Option.

     6.13 Acceleration.  The Committee shall at all times have the power to
accelerate the vesting date of Options previously granted under this Plan.

     6.14 Designation of Option as ISO or NQSO.  Subject to the provisions of
this Article, each Option granted under the Plan shall be designated either as
an ISO or a NQSO.  An Option Agreement evidencing both an ISO and a NQSO shall
identify clearly the status and terms of each Option.

     6.15 ISOs Converted to NQSOs.  In the event any part or all of an Option
granted under the Plan that is intended to be an ISO at any time fails to
satisfy all of the requirements of an ISO, then such ISO shall be split into an
ISO and NQSO so that the portion of the Option that still qualifies as an ISO
shall remain an ISO and the portion that does not qualify as an ISO shall

                                       14
<PAGE>

become a NQSO. Such split of an Option into an ISO portion and a NQSO portion
need not be evidenced by one or more Option Agreements.

     6.16 Notification of Sale.  Each Optionee shall give written notice to the
Company if the Optionee sells or otherwise disposes of any shares of Common
Stock acquired under an ISO before the expiration of the later of the two-year
period beginning on the date of grant of the ISO or the one-year period
beginning on the date that the Optionee exercises the ISO with respect to such
shares of Common Stock.

     6.17 No Liability.  The Company shall not be liable to any Optionee or any
other person if the Internal Revenue Service or any court having jurisdiction
over such matter determines for any reason that an Option intended to be an ISO
and granted hereunder does not qualify as an ISO.

                                   ARTICLE 7
               Terms and Conditions of Stock Appreciation Rights

     Stock Appreciation Rights granted hereunder and SAR Agreements shall comply
with and be subject to the following terms and conditions:

     7.1  General Provisions Applicable to Stock Appreciation Rights.  Stock
Appreciation Rights granted under this Plan shall either be related to an Option
or granted independently of any Option as follows:

          (a) Stock Appreciation Rights Related to Option.  Stock Appreciation
     Rights that are granted under this Plan with respect to an Option shall be
     granted simultaneously with, and shall only pertain to, such related
     underlying Option.  Stock Appreciation Rights related to an Option shall be
     exercisable only to the extent that the related Option is exercisable,
     shall be forfeited to the extent that the related Option is forfeited, and
     shall be subject to the same terms and conditions of Article 6 as are
     applicable to the related Option (e.g., vesting, number of shares,
     expiration terms, method of exercise, effect of termination of employment,
     Disability, death or Change of Control, restrictions on transfer and
     exercise, rights as shareholders, acceleration, etc.).  Stock Appreciation
     Rights that are granted under this Plan with respect to an Option granted
     under this Plan shall be specified in the SAR Agreement.  If the related
     Option is an ISO, the related Stock Appreciation Right shall satisfy all
     the restrictions and limitations of Article 6 hereof as if such related
     Stock Appreciation Right were an ISO.

          (b) Independent Stock Appreciation Rights.  Stock Appreciation Rights
     that are granted under this Plan independent of any Option granted under
     this Plan shall be subject to such terms and provisions as the Committee
     may, in its discretion, specify in a SAR Agreement; provided, however, such
     terms and provisions shall provide for a definite period of time of less
     than ten years from the date of grant for the exercise of the Stock
     Appreciation Rights and shall not defer income until the SAR Recipient's
     retirement date or termination of employment.

                                       15
<PAGE>

The Exercise Price of the shares of Common Stock underlying any Stock
Appreciation Right granted under this Plan shall be the Fair Market Value of the
Common Stock on the date the Stock Appreciation Right is granted, unless the
Committee determines otherwise; provided, however, for Stock Appreciation Rights
related to an Option, the Exercise Price shall be equal to the Option Price.

     7.2  Requirement of SAR Agreement  Upon the grant of Stock Appreciation
Rights hereunder, the Committee shall prepare (or cause to be prepared) a SAR
Agreement and shall present such SAR Agreement to the SAR Recipient.  Upon
execution of such SAR Agreement by the SAR Recipient, such Stock Appreciation
Rights shall be deemed to have been granted effective as of the date of grant.
The failure of the SAR Recipient to execute the SAR Agreement within 30 days of
the receipt of same shall render the SAR Agreement and the underlying Stock
Appreciation Rights null and void ab initio.

     7.3  SAR Recipient and Number of Shares.  Each SAR Agreement shall state
the name of the SAR Recipient and the total number of shares of the Common Stock
to which it pertains, the Exercise Price, the Beneficiary of the SAR Recipient
and the date as of which the Stock Appreciation Right was granted under this
Plan.

     7.4  Exercise of Stock Appreciation Right.  A Stock Appreciation Right
shall, upon its exercise, entitle the SAR Recipient to receive a number of
shares of Common Stock or cash or a combination thereof (as specified at the
time of grant, or, if not so specified, as specified by the SAR Recipient as of
the time of exercise), the aggregate value of which (i.e., the sum of the amount
of cash and/or the Fair Market Value of such shares of Common Stock on the date
of exercise) shall equal (as nearly as possible, it being understood that the
Company shall not issue any fractional shares) the amount by which the Fair
Market Value per share on the date of such exercise shall exceed the Exercise
Price per share under the related SAR Agreement, multiplied by the number of
shares of Common Stock with respect to which Stock Appreciation Rights have been
granted which the SAR Recipient is exercising.  In the case of Stock
Appreciation Rights related to an Option, such related Option shall cease to be
exercisable to the extent of the shares with respect to which the related Stock
Appreciation Right was exercised, and upon the exercise or termination of a
related Option, any related Stock Appreciation Right shall terminate to the
extent of the shares with respect to which the related Option was exercised or
terminated.  A SAR Recipient shall pay in cash (or have withheld from the
payment attributable to the exercise of all or a part of his Stock Appreciation
Right) an amount equal to the amount, if any, which the Company is required at
any time to withhold under the income tax or Federal Insurance Contributions Act
tax withholding provisions of the Code, of the income tax laws of the state of
the SAR Recipient's residence, and any other applicable law.

     7.5  Method of Exercise.  All Stock Appreciation Rights granted hereunder
shall be exercised by giving written notice to the Committee.  Each notice of
exercise shall identify the Stock Appreciation Right which the SAR Recipient is
exercising (in whole or in part) and shall be accompanied by any documents
Section 10.1 requires and by any applicable tax withholdings.  The Company shall
make payment of cash or delivery of shares within a reasonable period of time;
provided, if any law or regulation requires the Company to take any action
(including, but

                                       16
<PAGE>

not limited to, the filing of a registration statement under the 1933 Act and
causing such registration statement to become effective) with respect to any
shares to be issued to the SAR Recipient before the issuance thereof, then the
date of delivery of such shares shall be extended for the period necessary to
take such action.

     7.6  Restrictions on Stock Appreciation Right.  No Stock Appreciation Right
shall be assignable or transferable by the SAR Recipient except (i) by transfer
to a Beneficiary upon the death of the SAR Recipient, or (ii) by transfer from
the SAR Recipient to a spouse, lineal ascendant or lineal descendant of the SAR
Recipient or a spouse of a lineal ascendant or lineal descendant of the SAR
Recipient or to one or more trusts for the benefit of the SAR Recipient's
spouse, lineal ascendants or lineal descendants or a spouse of a lineal
ascendant or lineal descendant of the SAR Recipient or a partnership in which
such individuals are the only partners and only if the SAR Recipient does not
receive any consideration for the transfer and the Committee expressly approves
the transfer; and any purported transfer (other than as excepted above) shall be
null and void.  The holder of a transferred Stock Appreciation Right shall be
bound by the same terms and conditions that governed the Stock Appreciation
Right during the period the SAR Recipient held it; provided, however, that such
transferee may not transfer such Stock Appreciation Right except by will or the
laws of descent or distribution.  Any such transfer shall be evidenced by an
appropriate written document the SAR Recipient executes, and a copy thereof
shall be delivered to the Committee on or prior to the effective date of the
transfer.  After the death of an SAR Recipient, and upon the death of the SAR
Recipient's Beneficiary, a Stock Appreciation Right shall be transferred only by
will or by the laws of descent and distribution.  During the lifetime of a SAR
Recipient, only he can exercise the Stock Appreciation Right; provided, however,
that in the event the SAR Recipient is incapacitated and unable to exercise the
Stock Appreciation Right, such SAR Recipient's legal guardian, legal
representative, fiduciary or other representative whom the Committee deems
appropriate based on applicable facts and circumstances can exercise such Stock
Appreciation Right.

     7.7  Restrictions on Grants.  No Stock Appreciation Rights shall be granted
hereunder after ten years from the earlier of (a) the date the shareholders
approve the Plan, or (b) the date the Board adopts the Plan.

     7.8  Rights as a SAR Recipient.  A SAR Recipient shall have no rights as a
shareholder with respect to shares covered by his Stock Appreciation Right until
the date of issuance of any shares to him and all applicable tax withholdings
are paid in full.  Unless specified in Article 9, no adjustment will be made for
dividends or other rights for which the record date is prior to the date of such
issuance.  The Company may include on any certificates representing any shares
of Common Stock issued pursuant to exercise of a Stock Appreciation Right such
legends referring to any representations, restrictions or any other applicable
statements as the Company, in its discretion, shall deem appropriate.

     7.9  No Obligation to Exercise Stock Appreciation Right.  The granting of a
Stock Appreciation Right shall impose no obligation upon the SAR Recipient to
exercise such Stock Appreciation Right.

                                       17
<PAGE>

     7.10 Reduction of Restrictions or Limitations.  The Committee shall at all
times have the power to reduce (but not increase) any restrictions or
limitations applicable to a Stock Appreciation Right granted under this Plan.

                                   ARTICLE 8
                Terms and Conditions of Restricted Stock Awards

     Restriction Agreements and the Restricted Stock awarded under this Plan
shall comply with and be subject to the following terms and conditions:

     8.1  Requirement of Restriction Agreement.  Upon the grant of Restricted
Stock hereunder, the Committee shall prepare (or cause to be prepared) a
Restriction Agreement and shall present such Restriction Agreement to the
Restricted Stock Recipient.  Upon execution of such Restriction Agreement by the
Restricted Stock Recipient, such Restricted Stock shall be deemed to have been
granted effective as of the date of grant.  The failure of the Restricted Stock
Recipient to execute the Restriction Agreement within 30 days after the date of
the receipt of same shall render the Restriction Agreement and the underlying
award of Restricted Stock null and void ab initio.

     8.2  Effect of Grant of Restricted Stock.  An award of Restricted Stock
granted under the Plan shall provide the Restricted Stock Recipient with
immediate rights of ownership in the shares of Common Stock underlying the
award, but such shares shall be subject to such restrictions as the Committee
shall specify and shall be subject to forfeiture by the Restricted Stock
Recipient until the earlier of (i) the time such restrictions lapse or are
satisfied or (ii) the time such shares are forfeited.

     8.3  Restricted Stock Recipient and Number of Shares.  Each Restriction
Agreement shall state the name of the Restricted Stock Recipient and the total
number of shares of the Common Stock to which it pertains, the Beneficiary of
the Restricted Stock Recipient and the date as of which the Restricted Stock was
granted under this Plan.

     8.4  Restrictions on Stock.

          (a) The vesting of complete ownership rights in any Restricted Stock
     awarded under this Plan shall be subject to such terms and conditions as
     the Committee may determine in its sole discretion; provided, no Restricted
     Stock Recipient shall be required to pay any consideration in the form of
     cash or other property (other than required tax withholdings) as a
     condition to acquiring the Restricted Stock.  A Restricted Stock Recipient
     shall vest and obtain a nonforfeitable interest in the Restricted Stock as
     of the date that the last of such terms and conditions is satisfied;
     provided, if such terms and conditions are not satisfied by the deadline,
     if any, the Committee designates and specifies in the Restriction
     Agreement, the portion of Restricted Stock still subject to such terms and
     conditions shall be forfeited and returned to the Company.  The Committee,
     in its sole discretion, may provide for the lapse of the terms and
     conditions to which Restricted Stock is subject in installments and may
     provide for different terms and

                                       18
<PAGE>

     conditions and/or a different restriction period with respect to each
     award, or any portion of an award, of Restricted Stock.

          (b) Notwithstanding the provisions of subsection (a) above, all
     Restricted Stock previously granted to a Restricted Stock Recipient shall
     become immediately vested with respect to 100 percent of the shares of
     Restricted Stock subject to the Restriction Agreement in the event that,
     while the Restricted Stock Recipient is an employee of the Company or a
     Related Entity, the Restricted Stock Recipient incurs a Disability or dies
     or there is a Change of Control.

          (c) Other than as provided above, if a Restricted Stock Recipient
     ceases to be an employee of the Company and any Related Entity, his rights
     with regard to all non-vested shares of Restricted Stock shall cease
     immediately.

     8.5  Delivery of Restricted Stock.

          (a) The Company shall make delivery of the shares of Restricted Stock
     within a reasonable period of time after execution of a Restriction
     Agreement; provided, if any law or regulation requires the Company to take
     any action (including, but not limited to, the filing of a registration
     statement under the 1933 Act and causing such registration statement to
     become effective) with respect to such shares before the issuance thereof,
     then the date of delivery of such shares shall be extended for the period
     necessary to take such action.

          (b) Unless the certificates representing shares of the Restricted
     Stock are deposited with a custodian pursuant to subsection (c) of this
     Section, each such certificate shall bear the following legend (in addition
     to any other restrictive legend required pursuant to Article 10):

          The transferability of this certificate and the shares of stock
          represented hereby are subject to the restrictions, terms and
          conditions (including forfeiture and restrictions against transfer)
          contained in the NOVA Corporation 1996 Employees Stock Incentive Plan
          as Amended and Restated as of _______________, 2000 and a Restriction
          Agreement, dated ______________, _____, between
          ______________________________________________ and NOVA Corporation.
          The Plan and Restriction Agreement are on file in the office of the
          Secretary of NOVA Corporation.

Such legend shall be removed from any certificate evidencing such shares of
Restricted Stock as of the date that such shares become nonforfeitable.

          (c) As an alternative to delivering a stock certificate to the
     Restricted Stock Recipient pursuant to subsection (b) of this Section, the
     Company may deposit any certificate evidencing Restricted Stock with a
     custodian the Committee designates.  The Company shall cause the custodian
     to issue to the Restricted Stock Recipient a receipt for

                                       19
<PAGE>

     any Restricted Stock deposited with it in accordance with this subsection.
     Such custodian shall hold the deposited certificates and deliver the same
     to the Restricted Stock Recipient in whose name the shares of Restricted
     Stock evidenced thereby are registered only after such shares become
     nonforfeitable.

          (d) A Restricted Stock Recipient shall pay in cash (or have withheld
     from his normal pay) an amount equal to, or by instructing the Company to
     retain Common Stock upon the grant of the Restricted Stock with a Fair
     Market Value equal to, the amount, if any, which the Company is required at
     any time to withhold under the income tax or Federal Insurance
     Contributions Act tax withholding provisions of the Code, of the income tax
     laws of the state of the Restricted Stock Recipient's residence, and any
     other applicable law.

     8.6  Termination of Employment.  Except as the Committee otherwise
determines and sets forth in a Restriction Agreement, in the event that the
employment of a Restricted Stock Recipient to whom Restricted Stock has been
granted is terminated for any reason other than a Change of Control or death or
Disability before satisfaction of the terms and conditions to which the
Restricted Stock is subject, all shares of Restricted Stock still subject to
restriction shall be forfeited, shall be returned to the Company and again may
become subject to Stock Rights under the Plan.

     8.7  Restrictions on Transfer of Restricted Stock.  No shares of Restricted
Stock shall be sold, exchanged, transferred, pledged, hypothecated or otherwise
disposed of while such shares are still subject to restriction, and any
purported sale, exchange, transfer, pledge, hypothecation or other disposition
of shares of Restricted Stock while such shares are still subject to restriction
shall be null and void, except that (i) such Restricted Stock may be transferred
to a Beneficiary upon the death of the Restricted Stock Recipient, and (ii)
Restricted Stock may be transferred from the Restricted Stock Recipient to a
spouse, lineal ascendant or lineal descendant of the Restricted Stock Recipient
or a spouse of a lineal ascendant or lineal descendant of the Restricted Stock
Recipient or to one or more trusts for the benefit of the Restricted Stock
Recipient's spouse, lineal ascendants or lineal descendants or a spouse of a
lineal ascendant or lineal descendant of the Restricted Stock Recipient or a
partnership in which such individuals are the only partners and only if the
Restricted Stock Recipient does not receive any consideration for the transfer
but the Committee expressly approves the transfer.  The holder of transferred
shares of Restricted Stock shall be bound by the same terms and conditions that
governed such shares during the period the Restricted Stock Recipient held them;
provided, however, that such transferee may not transfer such shares of
Restricted Stock except by will or the laws of descent or distribution.  Any
such transfer shall be evidenced by an appropriate written document the
Restricted Stock Recipient executes, and a copy thereof shall be delivered to
the Committee on or prior to the effective date of the transfer.  After the
death of a Restricted Stock Recipient, and upon the death of the Restricted
Stock Recipient's Beneficiary, shares of Restricted Stock shall be transferred
only by will or by the laws of descent and distribution.

     8.8  Waiver of Restrictions.  If the Committee determines that, in cases of
retirement or other circumstances , a waiver of any or all remaining
restrictions with respect to a Restricted

                                       20
<PAGE>

Stock Recipient's Restricted Stock would be desirable, it may elect in its sole
discretion to waive such remaining restrictions.

     8.9  Rights as a Shareholder.  Upon delivery of Restricted Stock to the
Restricted Stock Recipient (or the custodian, if any), the Restricted Stock
Recipient shall, except as otherwise set forth in this Article and in the
Restriction Agreement, have all of the rights of a shareholder with respect to
the Restricted Stock, including the right to vote the shares of Restricted Stock
and receive all dividends or other distributions paid or made with respect to
the Restricted Stock.  Until such delivery, the Restricted Stock Recipient shall
have no rights as a shareholder.

     8.10 Acceleration.  The Committee shall at all times have the power to
accelerate the vesting date of Restricted Stock previously granted under this
Plan.

     8.11 Restrictions on Grants.  No Restricted Stock shall be granted
hereunder after ten years from the earlier of (a) the date the shareholders
approve the Plan or (b) the date the Board adopts the Plan.

                                   ARTICLE 9
                   Adjustment Upon Changes in Capitalization

     9.1  Recapitalization.  In the event that the outstanding shares of the
Common Stock of the Company are hereafter increased or decreased or changed into
or exchanged for a different number of kind of shares or other securities of the
Company by reason of a recapitalization, reclassification, stock split,
combination of shares or dividend payable in shares of the Common Stock, the
following rules shall apply:

          (a) The Committee shall make an appropriate adjustment in the number
     and kind of shares available for the granting of Stock Rights under the
     Plan.

          (b) The Committee also shall make an appropriate adjustment in the
     number and kind of shares as to which outstanding Options and Stock
     Appreciation Rights, or portions thereof then unexercised, shall be
     exercisable.  Any such adjustment in any outstanding Options and Stock
     Appreciation Rights shall be made without change in the total price
     applicable to the unexercised portion of such Options or Stock Appreciation
     Rights and with a corresponding adjustment in the Option Price or Exercise
     Price per share.  No fractional shares shall be issued or optioned in
     making the foregoing adjustments, and the number of shares available under
     the Plan or the number of shares subject to any outstanding Options and
     Stock Appreciation Rights shall be the next lower number of shares,
     rounding all fractions downward.

          (c) Any adjustment to or assumption of ISOs under this Section shall
     be made in accordance with Code (S)424(a) and the regulations promulgated
     thereunder so as to preserve the status of such Options as ISOs under Code
     (S)422.

                                       21
<PAGE>

          (d) If any rights or warrants to subscribe for additional shares are
     given pro rata to holders of outstanding shares of the class or classes of
     stock then set aside for the Plan, each Optionee shall be entitled to the
     same rights or warrants on the same basis as holders of the outstanding
     shares with respect to such portion of his Option as is unexercised on or
     prior to the record date for determining shareholders entitled to receive
     or exercise such rights or warrants.

     9.2  Reorganization.  Subject to any required action by the shareholders of
the Company, if the Company shall be a party to any reorganization involving a
merger, consolidation, acquisition of the stock or acquisition of the assets of
the Company which does not constitute a Change of Control, the Committee, in its
discretion, may declare that:

          (a) any or all outstanding Options or Stock Appreciation Rights
     granted but not yet exercised shall pertain to and apply, with appropriate
     adjustment as the Committee determines, to the securities of the resulting
     corporation to which a holder of the number of shares of the Common Stock
     subject to such Options or Stock Appreciation Rights would have been
     entitled, and any or all outstanding Restricted Stock shall be converted,
     with appropriate adjustment as the Committee determines, into securities of
     the resulting corporation to which a holder of the number of shares of the
     Common Stock subject to such Restricted Stock would have been entitled;

          (b) any or all outstanding Options and Stock Appreciation Rights
     granted hereunder shall become immediately nonforfeitable and fully
     exercisable (to the extent federal or state securities laws permit) and any
     or all outstanding Restricted Stock shall become immediately nonforfeitable
     (to the extent federal or state securities laws permit); and/or

          (c) any or all outstanding Options and Stock Appreciation Rights
     granted hereunder shall become immediately nonforfeitable and fully
     exercisable (to the extent federal or state securities laws permit) and
     shall be terminated after giving at least 30 days' notice to the Optionees
     and SAR Recipients to whom such Options and Stock Appreciation Rights have
     been granted, and any or all outstanding Restricted Stock shall become
     immediately nonforfeitable (to the extent federal or state securities laws
     permit) after giving at least 30 days' notice to the Restricted Stock
     Recipients to whom such Restricted Stock has been granted.

     9.3  Dissolution and Liquidation.  If the Board adopts a plan of
dissolution and liquidation that the shareholders of the Company approve, the
Committee shall give each Optionee, SAR Recipient and Restricted Stock Recipient
written notice of such event at least thirty days prior to its effective date,
and the rights of all Optionees, SAR Recipients and Restricted Stock Recipients
shall become immediately nonforfeitable and fully exercisable or vested (to the
extent permitted under federal or state securities laws).

     9.4  Limits on Adjustments.  Any issuance by the Company of stock of any
class, or securities convertible into shares of stock of any class, shall not
affect, and no adjustment by reason thereof shall be made with respect to, the
number or price of shares of the Common Stock

                                       22
<PAGE>

subject to any outstanding Stock Right, except as specifically provided
otherwise in this Article. The grant of Stock Rights pursuant to the Plan shall
not affect in any way the right or power of the Company to make adjustments,
reclassifications, reorganizations or changes of its capital or business
structure, or to merge or consolidate, or to dissolve, liquidate, sell or
transfer all or any part of its business or assets. All adjustments the
Committee makes under this Article shall be conclusive.

     9.5  Limitation on Benefits.  Despite any other provisions of this Plan to
the contrary, if the receipt of any payments (including accelerated vesting)
under this Plan would subject an individual to tax under Code (S) 4999, the
Committee may determine whether some amount of payments (including accelerated
vesting) would meet the definition of a "Reduced Amount" (as defined below).  If
the Committee determines that there is a Reduced Amount, the total payments
(including accelerated vesting) to the individual hereunder must be reduced to
such Reduced Amount, but not below zero.  If the Committee determines that the
payments must be reduced to the Reduced Amount, the Company must promptly notify
the individual of that determination, with a copy of the detailed calculations
by the Committee.  All determinations of the Committee under this Section 9.6
are binding upon the Company and the individual.  It is the intention of the
Company and the individual to reduce the payments under this Plan only if the
aggregate Net After Tax Receipt (as defined below) to the individual would
thereby be increased.  As a result of the uncertainty in the application of Code
Section 4999 at the time of the initial determination by the Committee under
this Section 9.6, however, it is possible that amounts will have been paid under
the Plan to or for the benefit of an individual which should not have been so
paid ("Overpayment") or that additional amounts which will not have been paid
under the Plan to or for the benefit of an individual could have been so paid
("Underpayment") - in each case, consistent with the calculation of the Reduced
Amount.  If the Committee, based either upon the assertion of a deficiency by
the Internal Revenue Service against the Company or the individual which the
Committee believes has a high probability of success or upon controlling
precedent or other substantial authority, determines that an Overpayment has
been made, it must be treated for all purposes as a loan which the individual
must repay to the Company together with interest at the applicable federal rate
under Code Section 7872(f)(2); provided, however, that no such loan may be
deemed to have been made and no amount shall be payable by the individual to the
Company if and to the extent such deemed loan and payment would not either
reduce the amount on which the individual is subject to tax under Code Section
1, 3101 or 4999 or generate a refund of such taxes.  If the Committee, based
upon controlling precedent or other substantial authority, determines that an
Underpayment has occurred, the Committee must promptly notify the individual of
the amount of the Underpayment, which the Company then shall pay to the
individual.  For purposes of this section, (i) "Net After Tax Receipt" means the
Present Value of a payment under this Plan reduced by all taxes imposed on the
individual with respect thereto under Code Sections 1, 3101 and 4999, determined
by applying the highest marginal rate under Code section 1 which applied to the
individual's taxable income for the immediately preceding taxable year; (ii)
"Present Value" means the value determined in accordance with Code Section
280G(d)(4); and (iii) "Reduced Amount" means the smallest aggregate amount of
all payments under this Plan which (a) is less than the sum of all payments
under this Plan and (b) results in aggregate Net After Tax Receipts which are
equal to or greater than the Net After Tax Receipts

                                       23
<PAGE>

which would result if the aggregate payments under this Plan were any other
amount less than the sum of all payments to be made under this Plan.

                                  ARTICLE 10
              Agreement by Optionee, SAR Recipient or Restricted
                  Stock Recipient and Securities Registration

     10.1 Agreement.  If, in the opinion of counsel to the Company, such action
is necessary or desirable, no Stock Rights shall be granted to any Optionee, SAR
Recipient or Restricted Stock Recipient, and no Option or Stock Appreciation
Right shall be exercisable, unless, at the time of grant or exercise, as
applicable, such Optionee, SAR Recipient or Restricted Stock Recipient (i)
represents and warrants that he will acquire the Common Stock for investment
only and not for purposes of resale or distribution, and (ii) makes such further
representations and warranties as are deemed necessary or desirable by counsel
to the Company with regard to holding and resale of the Common Stock.  The
Optionee, SAR Recipient or Restricted Stock Recipient shall, upon the request of
the Committee, execute and deliver to the Company an agreement or affidavit to
such effect.  Should the Committee have reasonable cause to believe that such
Optionee, SAR Recipient or Restricted Stock Recipient did not execute such
agreement or affidavit in good faith, the Company shall not be bound by the
grant of the Option, Stock Appreciation Right or Restricted Stock or by the
exercise of the Option or the Stock Appreciation Right.  All certificates
representing shares of Common Stock issued pursuant to the Plan shall be marked
with the following restrictive legend or similar legend, if such marking, in the
opinion of counsel to the Company, is necessary or desirable:

     The shares represented by this certificate have not been registered under
     the Securities Act of 1933, as amended, or the securities laws of any state
     and are held by an "affiliate" (as such term is defined in Rule 144 that
     the Securities and Exchange Commission has promulgated under the Securities
     Act of 1933, as amended) of the Corporation.  Accordingly, these shares may
     not be sold, hypothecated, pledged or otherwise transferred except (i)
     pursuant to an effective registration statement under the Securities Act of
     1933, as amended, and any applicable securities laws or regulations of any
     state with respect to such shares, (ii) in accordance with Securities and
     Exchange Commission Rule 144, or (iii) upon the issuance to the Corporation
     of a favorable opinion of counsel or the submission to the Corporation of
     such other evidence as may be satisfactory to the Corporation that such
     proposed sale, hypothecation, pledge or other transfer will not be in
     violation of the Securities Act of 1933, as amended, or any applicable
     securities laws of any state or any rules or regulations thereunder.  Any
     attempted sale, hypothecation, encumbrance or transfer of this certificate
     or the shares represented hereby which is in violation of the preceding
     restrictions will not be recognized by the Corporation, nor will any
     transferee be recognized as the owner thereof by the Corporation.

If the Common Stock is (A) held by an Optionee, SAR Recipient or Restricted
Stock Recipient who is not an "affiliate," as that term is defined in Rule 144
of the 1933 Act, or who ceases to be

                                       24
<PAGE>

an "affiliate," or (B) registered under the 1933 Act and all applicable state
securities laws and regulations as provided in Section 10.2, the Committee, in
its discretion and with the advice of counsel, may dispense with or authorize
the removal of the restrictive legend set forth above or the portion thereof
which is inapplicable.

     10.2 Registration.  In the event that the Company in its sole discretion
shall deem it necessary or advisable to register, under the 1933 Act or any
state securities laws or regulations, any shares with respect to which Stock
Rights have been granted hereunder, then the Company shall take such action at
its own expense before delivery of the certificates representing such shares to
an Optionee, SAR Recipient or Restricted Stock Recipient.  In such event, and if
the shares of Common Stock of the Company shall be listed on any national
securities exchange or on NASDAQ at the time of the exercise of any Option or
the vesting of any shares of Restricted Stock, the Company shall make prompt
application at its own expense for the listing on such stock exchange or NASDAQ
of the shares of Common Stock to be issued.

                                  ARTICLE 11
                                Effective Date

     The Plan was first adopted by the Board on December 28, 1995, which is the
Effective Date.  The shareholders of the Company approved the Plan at the
earlier of (i) the annual meeting of the shareholders of the Company which
immediately followed the date of the first grant or award of Stock Rights
hereunder, or (ii) 12 months after the adoption of the Plan by the Board, but
not earlier than 12 months prior to the adoption of the Plan by the Board, and
shareholder approval is not required for this Amendment and Restatement.
Effective August 3, 2000, all Stock Rights granted hereunder shall be governed
by the terms of this Amended and Restated Plan, including Stock Rights
previously granted under the Plan; provided, however, that the terms of the Plan
prior to this amendment and restatement shall apply to a previously-granted
Stock Right to the extent that the terms of this amended and restated Plan would
have a material adverse effect on the rights of the Participant under such
previously-granted Stock Right, unless the Participant has given consent to the
change.

                                  ARTICLE 12
                           Amendment and Termination

     12.1 Amendment and Termination By the Board.  Subject to Section 12.2
below, the Board shall have the power at any time to add to, amend or repeal any
of the provisions of the Plan, to suspend the operation of the entire Plan or
any of its provisions for any period or periods or to terminate the Plan in
whole or in part.  In the event of any such action, the Committee shall prepare
written procedures which, when the Board approves them, shall govern the
administration of the Plan resulting from such addition, amendment, repeal,
suspension or termination.

     12.2 Restrictions on Amendment and Termination.  Notwithstanding the
provisions of Section 12.1 above, the following restrictions shall apply to the
Board's authority under Section 12.1 above:

                                       25
<PAGE>

          (a) Prohibition Against Adverse Effects on Outstanding Stock Rights.
     No addition, amendment, repeal, suspension or termination shall adversely
     affect, in any way, the rights of the Optionees, SAR Recipients or
     Restricted Stock Recipients who have outstanding Stock Rights without the
     consent of such Optionees, SAR Recipients or Restricted Stock Recipients;
     and

          (b) Shareholder Approval Required for Certain Modifications.  No
     amendment of the Plan may be made without the approval of the shareholders
     of the Company if (i) such amendment would materially increase the number
     of securities which may be issued under the Plan, or (ii) such amendment
     would materially modify the requirements as to eligibility for
     participation in the Plan, or (iii) such amendment would modify the
     material terms of the Plan within the meaning of Prop. Treas. Reg.
     (S)1.162-27(e)(4).

                                  ARTICLE 13
                           Miscellaneous Provisions

     13.3 Application of Funds.  The proceeds the Company receives from the
sale of the Common Stock subject to the Stock Rights granted hereunder will be
used for general corporate purposes.

     13.4 Notices.  All notices or other communications by an Optionee, SAR
Recipient or Restricted Stock Recipient to the Committee pursuant to or in
connection with the Plan shall be deemed to have been duly given when received
in the form the Committee specifies, at the location, or by the person, the
Committee designates for the receipt thereof.

     13.5 Term of Plan.  Subject to the terms of Article 12, the Plan shall
terminate upon the later of (i) the complete exercise or lapse of the last
outstanding Stock Right, or (ii) the last date upon which Options may be granted
hereunder.

     13.6 Compliance with Rule 16b-3.  This Plan is intended to be in
compliance with the requirements of Rule 16b-3 as promulgated under Section 16
of the 1934 Act.

     13.7 Governing Law.  The Plan shall be governed by and construed in
accordance with the laws of the State of Georgia.

     13.8 Additional Provisions By Committee.  The Option Agreements authorized
under the Plan may contain such other provisions, including, without limitation,
restrictions upon the exercise of an Option, as the Committee shall deem
advisable.  The SAR Agreements authorized under the Plan may contain such other
provisions, including, without limitation, restrictions upon the exercise of a
Stock Appreciation Right, as the Committee shall deem advisable.  The
Restriction Agreements authorized under the Plan may contain such other
provisions, including, without limitation, restrictions upon the complete
ownership of Restricted Stock, as the Committee shall deem advisable.

                                       26
<PAGE>

     13.9  Plan Document Controls.  In the event of any conflict between the
provisions of an Option Agreements and the Plan, between a SAR Agreement and the
Plan, or between a Restriction Agreement and the Plan, the Plan shall control.

     13.10 Gender and Number.  Wherever applicable, the masculine pronoun shall
include the feminine pronoun, and the singular shall include the plural.

     13.11 Headings.  The titles in this Plan are inserted for convenience of
reference; they constitute no part of the Plan and are not to be considered in
the construction hereof.

     13.12 Legal References.  Any references in this Plan to a provision of law
which is, subsequent to the Effective Date of this Plan, revised, modified,
finalized or redesignated, shall automatically be deemed a reference to such
revised, modified, finalized or redesignated provision of law.

     13.13 No Rights to Employment.  Nothing contained in the Plan, or any
modification thereof, shall be construed to give any individual any rights to
employment with the Company or any parent or subsidiary corporation of the
Company.

     13.14 Unfunded Arrangement.  The Plan shall not be funded, and except for
reserving a sufficient number of authorized shares to the extent required by law
to meet the requirements of the Plan, the Company shall not be required to
establish any special or separate fund or to make any other segregation of
assets to assure the payment of any grant under the Plan.

                ADOPTED BY BOARD OF DIRECTORS ON AUGUST 3, 2000

                                   EXECUTION

     IN WITNESS WHEREOF, the undersigned officer has executed this Amended and
Restated Plan on this the 13th day of November, 2000, but to be effective as of
the dates specified in Article 11.

                            NOVA CORPORATION

                              By: /s/ Carole A. Loftin
                                  --------------------

                              Its:  Vice President and Associate General Counsel

                                       27<PAGE>

                                                                   EXHIBIT 10.59

                               NOVA CORPORATION

                      2000 EMPLOYEES STOCK INCENTIVE PLAN

                   AMENDED AND RESTATED AS OF AUGUST 3, 2000

                                   PREAMBLE

     WHEREAS, effective February 17, 2000, NOVA Corporation (the "Company")
established the NOVA Corporation 2000 Employees Stock Incentive Plan (the
"Plan") through which the Company may award options to purchase the Common Stock
of the Company; and

     WHEREAS, the Company desires to amend the Plan in order to (i) provide that
unvested stock options shall immediately vest upon a "Change of Control" as that
term is defined in the Plan, which was the intent of the Company at the time the
Plan was originally adopted; (ii) provide that consultants and advisors of the
Company are eligible for awards under the Plan; and (iii) provide for other
administrative changes;

     NOW, THEREFORE, the Company hereby amends and restates the NOVA Corporation
2000 Employees Stock Incentive Plan (the "Plan"), as of August 3, 2000:

                                   ARTICLE 1
                                    Purpose

     1.1  General Purpose. The purpose of this Plan is to further the growth and
development of the Company and Related Entities by encouraging their employees
to obtain a proprietary interest in the Company by owning its stock as well as
to grant options to purchase common stock to consultants and advisors of the
Company. The Company and Related Entities intend that the Plan will provide
their employees with an added incentive to continue in their employ and will
stimulate their efforts in promoting the growth, efficiency and profitability of
the Company and Related Entities. The Company and Related Entities also intend
that the Plan will afford them a means of attracting to their service persons of
outstanding quality.

     1.2  Intended Tax Effects of Options. The tax effects of any Options
granted hereunder should be determined under Code (S)83.

                                   ARTICLE 2
                                  Definitions

     2.1  1933 Act shall mean the Securities Act of 1933, as amended.

     2.2  1934 Act shall mean the Securities Exchange Act of 1934, as amended.
<PAGE>

     2.3  Beneficiary shall mean, with respect to an Optionee, the individual or
entity to whom the Optionee's Options shall be transferred upon the Optionee's
death.

          (a)  Designation of Beneficiary. An Optionee's Beneficiary shall be
     the individual or entity whom the Optionee last designated in writing as
     such Optionee's Beneficiary hereunder. An Optionee shall designate his or
     her original Beneficiary in writing on his or her Option Agreement. Any
     subsequent modification of the Optionee's Beneficiary shall be in a
     written, executed, notarized letter addressed to the Committee and shall be
     effective when the Committee receives it and in its sole discretion accepts
     it.

          (b)  No Designated Beneficiary. If, at any time, an Optionee has not
     validly designated a Beneficiary, or the Beneficiary whom the Optionee
     designated is no longer living or in existence at the time of the
     Optionee's death, then the Optionee's Beneficiary shall be deemed to be the
     individual or individuals in the first of the following classes of
     individuals with one or more members of such class surviving at the
     Optionee's death, and in the absence thereof, the Optionee's estate: (A)
     the Optionee's surviving spouse; or (B) the Optionee's then living lineal
     descendants, per stirpes.

          (c)  Contingent Beneficiaries. An Optionee may designate a contingent
     Beneficiary to receive the Optionee's Option in the event that the
     Optionee's original Beneficiary should not be in existence at the time of
     the Optionee's death or should predecease the Optionee; otherwise, in the
     event a Beneficiary should not be in existence at the time of Optionee's
     death or should predecease the Optionee, then the individual or individuals
     specified in subsection (b) above shall be the Optionee's Beneficiary.

     2.4  Board shall mean the Board of Directors of the Company.

     2.5  Cause shall mean an act or acts by an individual involving personal
dishonesty, incompetence, willful misconduct, breach of fiduciary duty involving
personal profit, breach of contract with the Company or a Related Entity,
violation of Company or Related Entity policy, intentional failure to perform
stated duties, willful violation of any law, rule or regulation (other than
traffic violations or similar offenses),  or the unlawful trading in the
securities of the Company, a Related Entity or of another corporation based on
information gained as a result of the performance of services for the Company, a
Related Entity or such other corporation.

     2.6  Change of Control shall mean the occurrence of any one of the
following events:

          (a)  Acquisition By Person of Substantial Percentage.  The acquisition
     by any individual or entity (including "affiliates" and "associates" of
     such individual or entity, but excluding the Company, any "parent" or
     "subsidiary" of the Company, or any employee benefit plan of the Company or
     of any "parent" or "subsidiary" of the

                                       2
<PAGE>

     Company) of a sufficient number of shares of Common Stock, or securities
     convertible into shares of Common Stock(whether through direct acquisition
     of shares or by merger, consolidation, share exchange, reclassification of
     securities or recapitalization of or involving the Company or any "parent"
     or "subsidiary" of the Company or similar event) to constitute the
     individual or entity the actual or beneficial owner (within the meaning of
     the term as it is used in Section 13(d) of the 1934 Act and the rules
     promulgated thereunder) of 30% or more of the Common Stock, but only if
     such acquisition occurs without the prior approval of the Company's
     Continuing Directors;

          (b)  Substantial Change of Board Members.  The Company's Continuing
     Directors fail to constitute at least a majority of the members of the
     Board;

          (c)  Disposition of Assets.  Any sale or other transfer of all or
     substantially all of the assets of the Company or any "significant
     subsidiary" (as Rule 1-02 of the Regulation S-X promulgated under the 1934
     Act defines such term) without the prior approval of the Company's
     Continuing Directors; or

          (d)  Transactions Requiring Regulatory Approval.  The filing by an
     individual or entity of an application with any regulatory authority having
     jurisdiction over the ownership of the Company in connection with any
     transaction by which such individual or entity is to acquire 20% or more of
     the combined voting power of the Company's then outstanding securities
     without the prior approval of the Company's Continuing Directors.

     For purposes of this Plan, the terms "affiliate," "associate," "parent" and
"subsidiary" shall have the respective meanings ascribed to such terms in Rule
12b-2 under Section 12 of the 1934 Act. For purposes of this subsection 2.6, the
term "Continuing Directors" shall mean the individuals who, as of the date
hereof, constitute members of the Board; provided, however, that any individual
becoming a member of the Board after the date hereof whose election, or
nomination for election by the Company's shareholders, was approved by a vote of
at least a majority of the Continuing Directors then shall be considered as a
Continuing Director, but excluding for this purpose any such individual whose
initial assumption of membership on the Board occurs as a result of either an
actual or threatened election contest or other actual or threatened solicitation
of proxies or consents by or on behalf of an individual or entity other than the
Board.

     2.7  Code shall mean the Internal Revenue Code of 1986, as amended.

     2.8  Committee shall mean the committee the Board appoints to administer
and interpret the Plan in accordance with Article 3 below.

     2.9  Common Stock shall mean the common stock, par value $0.01 per share,
of the Company.

     2.10  Company shall mean NOVA Corporation.

                                       3
<PAGE>

     2.11 Director shall mean individuals who are serving as a member of the
Board (i.e., a director of the Company) or who are serving as a member of the
board of directors or comparable group of any Related Entity.

     2.12 Disability shall mean, with respect to an individual, the total and
permanent disability of such individual as the Committee determines in its sole
discretion.

     2.13 Effective Date shall mean the date on which the Board adopts the
Plan.

     2.14 Fair Market Value of the Common Stock as of a date of determination
shall mean the following:

          (a) Stock Listed and Shares Traded.  If the Common Stock is listed and
     traded on a national securities exchange (as the 1934 Act defines the term)
     or on the NASDAQ National Market System on the date of determination, the
     Fair Market Value per share shall be the closing price of a share of the
     Common Stock on said national securities exchange or National Market System
     on the date of determination. If the Common Stock is traded in the over-
     the-counter market, the Fair Market Value per share shall be the average of
     the closing bid and asked prices on the date of determination.

          (b) Stock Listed But No Shares Traded.  If the Common Stock is listed
     on a national securities exchange or on the National Market System but no
     Common Stock is traded on the date of determination but was traded on dates
     within a reasonable period before the date of determination, the Fair
     Market Value per share shall be the closing price of a share of Common
     Stock on the most recent date before the date of determination.  If the
     Common Stock is regularly traded in the over-the-counter market but no
     Common Stock is traded on the date of determination (or if records of such
     trades are unavailable or burdensome to obtain) but Common Stock was traded
     on dates within a reasonable period before the date of determination, the
     Fair Market Value per share shall be the average of the closing bid and
     asked prices of the Common Stock on the most recent date before the date of
     determination.

          (c) Stock Not Listed.  If the Common Stock is not listed on a national
     securities exchange or on the National Market System and is not regularly
     traded in the over-the-counter market, then the Committee shall determine
     the Fair Market Value per share from all relevant available facts, which
     may include the average of the closing bid and ask prices reflected in the
     over-the-counter market on a date within a reasonable period either before
     or after the date of determination or opinions of independent experts as to
     value and may take into account any recent sales and purchases of such
     Common Stock to the extent they are representative.

          (d) Good Faith Determination.  Notwithstanding the preceding
     provisions of this Section 2.14 to the contrary, the Committee may use a
     method of determining Fair Market Value per share different from those
     specified above to determine Fair Market Value for purposes of pricing an
     option if the Committee determines that such different method of
     determining Fair Market Value is reasonable, based on all pertinent facts
     and

                                       4
<PAGE>

     circumstances, and any such determination to use such different method is
     made in good faith by the Committee.

The Committee's determination of Fair Market Value, which shall be made pursuant
to the foregoing provisions, shall be final and binding for all purposes of this
Plan.  The Committee will determine Fair Market Value without regard to any
restriction other than a restriction which, by its terms, will never lapse.

     2.15  Option shall mean an option granted to an individual pursuant to the
terms and provisions of this Plan that entitles the holder to purchase from the
Company a stated number of shares of Common Stock at the Option Price set forth
in the Option Agreement and that specifies the other terms and conditions of the
Option.

     2.16  Option Agreement shall mean a written agreement that the Company and
an Optionee execute and date, evidencing an Option granted under the terms and
provisions of this Plan, setting forth the terms and conditions of such Option,
and specifying the name of the Optionee and the number of shares of Common Stock
subject to such Option.

     2.17  Option Price shall mean the purchase price of the shares of Common
Stock underlying an Option.

     2.18  Optionee shall mean an individual who is granted an Option pursuant
to the terms and provisions of this Plan.

     2.19  Plan shall mean this NOVA Corporation 2000 Employees Stock Incentive
Plan Amended and Restated as of August 3, 2000.

     2.20  Related Entity shall mean (i) any entity that, directly or
indirectly, through one or more intermediaries, controls, or is controlled by,
or is under common control with the Company (including any such entity that
becomes such after the adoption of this Plan) or (ii) any entity that the Board
designates as a participating company in the Plan.

                                   ARTICLE 3
                                Administration

     3.1   General Administration. The Committee shall administer and interpret
the Plan. Subject to the express provisions of the Plan, the Committee shall
have the authority to interpret the Plan, to prescribe, amend and rescind rules
and regulations relating to the Plan, to determine the individuals to receive
Options and the terms and provisions of the Option Agreements by which such
Options shall be evidenced (which shall not be inconsistent with the terms of
the Plan), and to make all other determinations necessary or advisable for the
administration of the Plan, all of which determinations shall be final, binding
and conclusive. The express grant in the Plan of any specific power to the
Committee shall not be construed as limiting any power or authority of the
Committee. The Company shall bear all expenses of administering this Plan.

                                       5
<PAGE>

     3.2  Appointment. The Board shall appoint the Committee from among its
members to serve at the pleasure of the Board. The Board from time to time may
remove members from, or add members to, the Committee and shall fill all
vacancies thereon. The Committee at all times shall be composed of two or more
directors who shall meet the following requirements hereinafter described.
During the period any director is serving on the Committee, he must be a
director who (i) is not currently an officer (as defined in Rule 16a-1(f) of the
1934 Act) of the Company or a parent or subsidiary of the Company, or otherwise
currently an employee of the Company or a parent or subsidiary of the Company;
(ii) does not receive compensation, either directly or indirectly, from the
Company or a parent or subsidiary of the Company, for services rendered as a
consultant or in any capacity other than as a director except for an amount that
does not exceed the dollar amount for which disclosure would be required
pursuant to Rule 404(a); (iii) does not possess an interest in any other
transaction for which disclosure would be required pursuant to Rule 404(a); and
(iv) is not engaged in a business relationship for which disclosure would be
required pursuant to Rule 404(b). The requirements of this subsection are
intended to comply with the "Non-Employee Director" requirements of Rule 16b-3
of the 1934 Act or any successor regulation, and shall be interpreted and
construed in a manner which assures compliance with the "Non-Employee Director"
requirement of such regulation.

     3.3  Organization.  The Committee may select one of its members as its
chairman and shall hold its meetings at such times and at such places as it
shall deem advisable.  A majority of the Committee shall constitute a quorum,
and such majority shall determine its actions.  The Committee shall keep minutes
of its proceedings and shall report the same to the Board at the meeting next
succeeding.

     3.4  Indemnification.  In addition to such other rights of indemnification
as they have as directors or as members of the Committee, the members of the
Committee, to the extent applicable law permits, shall be indemnified by the
Company against reasonable expenses (including, without limitation, attorneys'
fees) that they or any of them actually and necessarily incur in connection with
the defense of any action, suit or proceeding, or in connection with any appeal,
to which they or any of them may be a party by reason of any action taken or not
taken under or in connection with the Plan or any Options granted hereunder, and
against all amounts they or any of them pay in settlement thereof (provided such
settlement is approved to the extent required by and in the manner provided by
the articles or certificate of incorporation or the bylaws of the Company
relating to indemnification of directors) or pay in satisfaction of a judgment
in any such action, suit or proceeding, except in relation to matters as to
which it shall be adjudged in such action, suit or proceeding that such
Committee member or members did not act in good faith and in a manner he or they
reasonably believed to be in or not opposed to the best interest of the Company.

                                   ARTICLE 4
                                     Stock

     The shares of Common Stock subject to the Options and other provisions of
the Plan shall be authorized but unissued or reacquired shares of Common Stock.
Subject to readjustment in accordance with Article 7, the total number of shares
of Common Stock for which Options

                                       6
<PAGE>

may be granted to individuals participating in the Plan shall not exceed in the
aggregate 3,500,000 shares of Common Stock. Notwithstanding the foregoing,
shares of Common Stock allocable to the unexercised portion of any expired or
terminated Option again may become subject to Options under the Plan.

                                   ARTICLE 5
                  Eligibility to Receive and Grant of Options

     5.1  Individuals Eligible for Grants of Options.  The individuals eligible
to receive Options hereunder shall be employees, consultants and advisors of the
Company or any Related Entity, including such employees who are also Directors
of the Company or any Related Entity; provided, however, no non-employee
Director shall be eligible to receive any Options pursuant to this Plan unless
such non-employee Director is receiving such Options in connection with
consulting services provided by the non-employee Director to the Company or any
Related Entity.

     5.2  Grants of Options.  Subject to the provisions of the Plan, the
Committee shall have the authority and sole discretion to determine and
designate, from time to time, those employees, consultants or advisors (from
among the employees, consultants and advisors eligible for a grant of Options
under the Plan pursuant to Section 5.1 above) to whom Options will actually be
granted, the Option Price of the shares covered by any Options, the manner in
and conditions under which Options are exercisable (including, without
limitation, any limitations or restrictions thereon), and the time or times at
which Options shall be granted. In making such determinations, the Committee may
take into account the nature of the services rendered by the respective
employees, consultants or advisors to whom Options may be granted, their present
and potential contributions to the Company's or Related Entity's success and
such other factors as the Committee, in its sole discretion, shall deem
relevant. In its authorization of the grant of an Option hereunder, the
Committee shall specify the name of the Optionee and the number of shares
subject to such Option . The Committee may, at any time, grant new Options to an
Optionee who has previously received Options, whether such Options still are
outstanding, have been previously exercised in whole or in part, have expired or
are canceled in connection with the issuance of new Options. No employee,
consultant or employee shall have any claim or right to receive Options under
the Plan.

                                   ARTICLE 6
                        Terms and Conditions of Options

     Options granted hereunder and Option Agreements shall comply with and be
subject to the following terms and conditions:

     6.1  Requirement of Option Agreement. Upon the grant of an Option
hereunder, the Committee shall prepare (or cause to be prepared) an Option
Agreement. The Committee shall present such Option Agreement to the Optionee.
The failure of the Optionee to execute the Option Agreement within 30 days after
the date of the receipt of same shall render the Option Agreement and the
underlying Option null and void ab initio.

                                       7
<PAGE>

     6.2  Optionee and Number of Shares. Each Option Agreement shall state the
name of the Optionee and the total number of shares of Common Stock to which it
pertains, the Option Price, the Beneficiary of the Optionee and the date as of
which the Option was granted under this Plan.

     6.3  Vesting.

          (a) An Option may be exercised in whole at any time or in part from
     time to time at such times and in compliance with such requirements as the
     Committee shall determine and set forth in the Option Agreement. An Option
     granted under the Plan may be exercised with respect to a number of whole
     shares less than the full number of shares for which the Option could be
     exercised. A partial exercise of the Option shall not affect the right to
     exercise the Option from time to time in accordance with this Plan and the
     Option Agreement with respect to the remaining shares of Common Stock
     subject to the Option.

          (b) Notwithstanding the provisions of subsection (a) above, all
     Options previously granted to an Optionee shall become immediately vested
     and exerciseable with respect to 100 percent of the shares of Common Stock
     subject to the Option in the event that (i) the Optionee is an employee of
     the Company or a Related Entity and (ii) the Optionee incurs a Disability
     or dies or there is a Change of Control while the Optionee is an employee
     of the Company or a Related Entity.

          (c) Other than as provided above, if an Optionee who is an employee of
     the Company or a Related Entity ceases to be an employee of the Company or
     a Related Entity, his rights with regard to all non-vested Options that
     are not then exercisable at the time of termination of employment shall
     cease immediately.

     6.4  Option Price. The Option Price of the shares of Common Stock
underlying each Option shall be no less than 75% of the Fair Market Value of
such shares on the date the Option is granted. The date as of which the
Committee granted the Option as specified in the Option Agreement shall be
considered the date on which such Option is granted.

     6.5  Terms of Options. Terms of Options granted under the Plan shall
commence on the date of grant and shall expire on such date as the Committee may
determine for each Option; provided, in no event shall any Option be exercisable
after ten years from the date the Option is granted. No Option shall be granted
hereunder after ten years from the date the Board adopts the Plan.

     6.6  Terms of Exercise. The exercise of an Option may be for less than the
full number of shares of Common Stock subject to such Option, but such exercise
shall not be made for less than (i) 50 shares or (ii) the total remaining shares
subject to the Option, if such total is less than 50 shares. Subject to the
other restrictions on exercise set forth herein, the Optionee may exercise the
unexercised portion of an Option at a later date.

                                       8
<PAGE>

     6.7  Method of Exercise. All Options granted hereunder shall be exercised
by giving written notice directed to the Secretary of the Company at its
principal place of business or to such other person as the Committee may direct.
Each notice of exercise shall identify the Option which the Optionee is
exercising (in whole or in part) and shall be accompanied by payment of the
Option Price for the number of shares specified in such notice, by any documents
Section 8.1 requires and by any applicable tax withholdings. The Company shall
make delivery of such shares within a reasonable period of time; provided, if
any law or regulation requires the Company to take any action (including, but
not limited to, the filing of a registration statement under the 1933 Act and
causing such registration statement to become effective) with respect to the
shares specified in such notice before the issuance thereof, then the date of
delivery of such shares shall be extended for the period necessary to take such
action.

     6.8  Medium and Time of Payment.

          (a) The Option Price shall be payable upon the exercise of the Option
     in an amount equal to the number of shares then being purchased times the
     per share Option Price.  Payment, at the election of the Optionee (or his
     Beneficiary as provided in subjection (c) of Section 6.9), shall be (A) in
     cash; (B)  by delivery to the Company of a certificate or certificates for
     shares of the Common Stock duly endorsed for transfer to the Company with
     signature guaranteed by a member firm of a national securities exchange or
     by a national or state bank or a federally chartered thrift institution (or
     guaranteed or notarized in such other manner as the Committee may require);
     or (C) by a combination of (A) and (B).

          (b) If all or part of the Option Price is paid by delivery of shares
     of Common Stock, on the date of such payment the Optionee must have held
     such shares for at least six months, and the value of such Common Stock
     (which shall be the Fair Market Value of such shares of Common Stock on the
     date of exercise) shall be less than or equal to the total Option Price.
     If the Optionee delivers shares of Common Stock with a value that is less
     than the total Option Price, then the Optionee shall pay the balance of the
     total Option Price in cash as provided in subsection (a) above.

          (c) In addition to the payment of the purchase price of the shares
     then being purchased, an Optionee also shall pay in cash (or have withheld
     from his pay) an amount equal to, or, by instructing the Company to retain
     shares of Common Stock upon the exercise of the Option with a Fair Market
     Value equal to, the amount, if any, which the Company or Related Entity at
     the time of exercise is required to withhold under the income tax or
     Federal Insurance Contributions Act tax withholding provisions of the Code,
     of the income tax laws of the state of the Optionee's residence, and of any
     other applicable law.

     6.9  Effect of Termination of Employment, Disability or Death.  Except as
provided in subsections (a), (b) and (c) below, no Option shall be exercisable
unless the Optionee thereof shall have been an employee of the Company or any
Related Entity from the date of the granting of the Option until the date of
exercise; provided, the Committee, in its sole discretion, may

                                       9
<PAGE>

waive the application of this Section 6.9 with respect to any Option granted
hereunder and, instead, may provide a different expiration date or dates in an
Option Agreement.

          (a) Termination of Employment.  In the event an Optionee ceases to be
     an employee of the Company or any Related Entity for any reason other than
     death or Disability, the Option or unexercised portion thereof granted to
     him shall terminate on and shall not be exercisable after the earliest to
     occur of (i) the expiration date of the Option, (ii) three months after
     termination of employment or (iii) the date on which the Company or Related
     Entity gives notice to such Optionee of termination of employment if the
     Company or a Related Entity is terminating the employment of an Optionee
     for Cause (an Optionee's resignation in anticipation of termination of
     employment by the Company or Related Entity for Cause shall constitute a
     notice of termination by the Company or Related Entity); provided, the
     Committee may provide in the Option Agreement that such Option or any
     unexercised portion thereof shall terminate sooner. Notwithstanding the
     foregoing, in the event that an Optionee's employment terminates for a
     reason other than death or Disability at any time after a Change of
     Control, the term of all Options of that Optionee shall be extended through
     the end of the three-month period immediately following the date of such
     termination. Prior to the earlier of the dates specified in the preceding
     sentences of this subsection (a), the Option shall be exercisable only in
     accordance with its terms and only for the number of shares exercisable on
     the date of termination of employment.

          (b) Disability. Upon the termination of an Optionee's employment due
     to Disability, any Option or unexercised portion thereof granted to him
     which is otherwise exercisable shall terminate on and shall not be
     exercisable after the earlier to occur of (i) the expiration date of such
     Option, or (ii) one year after the date on which such Optionee ceases to be
     an employee of the Company and any Related Company due to Disability;
     provided, the Committee may provide in the Option Agreement that such
     Option or any unexercised portion thereof shall terminate sooner. Prior to
     the earlier of such dates, such Option shall be exercisable only in
     accordance with its terms and only for the number of shares exercisable on
     the date such Optionee's employment ceases due to Disability.

          (c) Death. In the event of the death of the Optionee (i) while he is
     an employee of the Company or any Related Entity, (ii) within three months
     after the date on which such Optionee's employment terminated (for a reason
     other than Cause) as provided in subsection (a) above, or (iii) within one
     year after the date on which such Optionee's employment terminated due to
     his Disability as provided in subsection (b), his Beneficiary may exercise
     any Option or unexercised portion thereof granted to him which is otherwise
     exercisable at any time prior to the expiration of one year from the date
     of death of such Optionee, but in no event later than the date of
     expiration of the Option; provided, the Committee may provide in the Option
     Agreement that such Option or any unexercised portion thereof shall
     terminate sooner. Such exercise shall be effected pursuant to the terms of
     this Section 6.9 as if such Beneficiary is the named Optionee. Prior to the
     earliest of such dates, such Option shall be exercisable only in accordance

                                       10
<PAGE>

     with its terms and only for the number of shares exercisable on the date
     such Optionee's employment ceases due to death.

     6.10  Restrictions on Transfer and Exercise of Options. No Option shall be
assignable or transferable by the Optionee except (i) by transfer to a
Beneficiary upon the death of the Optionee, or (ii) by transfer from the
Optionee to a spouse, lineal ascendant or lineal descendant of the Optionee or a
spouse of a lineal ascendant or lineal descendant of the Optionee or to one or
more trusts for the benefit of the Optionee's spouse, lineal ascendants or
lineal descendants or a spouse of a lineal ascendant or lineal descendant of the
Optionee or a partnership in which such individuals are the only partners and
only if the Optionee does not receive any consideration for the transfer and the
Committee expressly approves the transfer; and any purported transfer (other
than as excepted above) shall be null and void. The holder of a transferred
Option shall be bound by the same terms and conditions that governed the Option
during the period the Optionee held it; provided, however, that such transferee
may not transfer such Option except by will or the laws of descent or
distribution. Any such transfer shall be evidenced by an appropriate written
document the Optionee executes, and a copy thereof shall be delivered to the
Committee on or prior to the effective date of the transfer. After the death of
an Optionee, and upon the death of the Optionee's Beneficiary, an Option shall
be transferred only by will or by the laws of descent and distribution. During
the lifetime of an Optionee, only he can exercise the Option; provided, however,
that in the event the Optionee is incapacitated and unable to exercise the
Option, such Optionee's legal guardian, legal representative, fiduciary or other
representative whom the Committee deems appropriate based on applicable facts
and circumstances can exercise such Option.

     6.11  Rights as a Shareholder. An Optionee shall have no rights as a
shareholder with respect to shares of Common Stock covered by his Option until
the date of issuance of the shares to him and only after the Option Price of
such shares and all applicable tax withholdings are paid in full. Unless
specified in Article 7, no adjustment will be made for dividends or other rights
for which the record date is prior to the date of such issuance. The Company may
include on any certificates representing shares of Common Stock issued pursuant
to an Option such legends referring to any representations, restrictions or any
other applicable statements as the Company, in its discretion, shall deem
appropriate.

     6.12  No Obligation to Exercise Option. The granting of an Option shall
impose no obligation upon the Optionee to exercise such Option.

     6.13  Acceleration.  The Committee shall at all times have the power to
accelerate the vesting date of Options previously granted under this Plan.

     6.14  Liabilities of Optionee.  No right or interest of an Optionee in any
Option shall be liable for or subject to any lien, obligation or liability of
such Optionee.

     6.15  Employee Status. In the event that the terms of any Option provide
that it may be exercised only during employment or within a specified period of
time after termination of employment, the Committee may decide to what extent
leaves of absence for governmental or

                                       11
<PAGE>

military service, illness, temporary disability or other reasons shall not be
deemed interruptions of employment.

     6.16  Other Conditions. The Committee, in its discretion, may, as a
condition to the grant of an Option, require the Optionee on or before the day
of grant of the Option to enter into (i) a covenant not to compete (including a
confidentiality, non-solicitation or other similar agreement) with the Company
or a Related Entity, which shall become effective upon the date of termination
of employment of the Optionee with the Company or a Related Entity or another
date and contain such terms and conditions as the Committee shall otherwise
specify or (ii) an agreement to cancel any employment agreement, fringe benefit
or other compensation arrangement in effect between the Company or a Related
Entity and such Optionee. If the Optionee shall fail to enter into any such
agreement or agreements at the Committee's request, then no Option shall be
granted to the Optionee and the number of shares of Common Stock that would have
been subject to such Option shall be added to the remaining shares of Common
Stock available under the Plan.

                                   ARTICLE 7
                   Adjustment Upon Changes in Capitalization

     7.1  Recapitalization.  In the event that the outstanding shares of the
Common Stock of the Company are hereafter increased or decreased or changed into
or exchanged for a different number or kind of shares or other securities of the
Company by reason of a recapitalization, reclassification, stock split,
combination of shares or dividend payable in shares of the Common Stock, the
following rules shall apply:

          (a) The Committee shall make an appropriate adjustment in the number
     and kind of shares available for the granting of Options under the Plan and
     in any limit to the aggregate Options that can be granted to an Optionee in
     any calendar year.

          (b) The Committee also shall make an appropriate adjustment in the
     number and kind of shares as to which outstanding Options, or portions
     thereof then unexercised, shall be exercisable; any such adjustment in any
     outstanding Options shall be made without change in the total price
     applicable to the unexercised portion of such Option and with a
     corresponding adjustment in the Option Price per share.  No fractional
     shares shall be issued or optioned in making the foregoing adjustments, and
     the number of shares available under the Plan or the number of shares
     subject to any outstanding Options shall be the next lower number of
     shares, rounding all fractions downward.

          (c) If any rights or warrants to subscribe for additional shares are
     given pro rata to holders of outstanding shares of the class or classes of
     stock then set aside for the Plan, each Optionee shall be entitled to the
     same rights or warrants on the same basis as holders of the outstanding
     shares with respect to such portion of his Option as is unexercised on or
     prior to the record date for determining shareholders entitled to receive
     or exercise such rights or warrants.

                                       12
<PAGE>

          (d) In addition, the Committee may make such other adjustments to the
     terms of an outstanding Option to the extent equitable and necessary to
     prevent an enlargement or dilution of the Optionee's rights thereunder as a
     result of any similar transaction.

     7.2  Reorganization. Subject to any required action by the shareholders, if
the Company shall be a party to any reorganization involving a merger,
consolidation, acquisition of the stock or acquisition of the assets of the
Company which does not constitute a Change of Control, the Committee, in its
discretion, may declare that:

          (a) any or all outstanding Options granted but not yet exercised shall
     pertain to and apply, with appropriate adjustment as the Committee
     determines, to the securities of the resulting corporation to which a
     holder of the number of shares of the Common Stock subject to such Option
     would have been entitled;

          (b) any or all outstanding Options granted hereunder shall become
     immediately nonforfeitable and fully exercisable (to the extent federal or
     state securities laws permit); and/or

          (c) any or all outstanding Options granted hereunder shall become
     immediately nonforfeitable and fully exercisable (to the extent the federal
     or state securities laws permit) and shall be terminated after giving at
     least 30 days' notice to the Optionees to whom such Options have been
     granted.

     7.3  Dissolution and Liquidation. If the Board adopts a plan of dissolution
and liquidation that the shareholders of the Company approve, the Committee
shall give each Optionee written notice of such event at least 30 days prior to
its effective date, and the rights of all Optionees shall become immediately
nonforfeitable and fully exercisable or vested (to the extent the federal or
state securities laws permit).

     7.4  Limits on Adjustments. Any issuance by the Company of shares of stock
of any class, or securities convertible into shares of stock of any class, shall
not affect, and no adjustment by reason thereof shall be made with respect to,
the number or Option Price of shares of the Common Stock subject to any Option,
except as this Article specifically provides otherwise. The issuance by the
Company of either shares of stock of any class or securities convertible into
shares of stock of any class, for cash or property or for labor or services,
either upon direct sale or upon the exercise of rights or warrants to subscribe
therefore, or upon conversion of shares or obligations of the Company
convertible into such shares or other securities, shall not affect, and no
adjustment by reason therefor shall be made with respect to, the maximum number
of shares of the Common Stock as to which Options may be granted or any other
limitations in this Plan or the terms of outstanding Options. The grant of
Options pursuant to the Plan shall not affect in any way the right or power of
the Company to make adjustments, reclassifications, reorganizations or changes
of its capital or business structure or to merge, consolidate or dissolve, or to
liquidate, sell or transfer all or any part of its business or assets. All
adjustments the Committee makes under this Article shall be final and conclusive
on all parties.

                                       13
<PAGE>

     7.5  Limitation on Benefits. Despite any other provisions of this Plan to
the contrary, if the receipt of any payments (including accelerated vesting)
under this Plan would subject an Optionee to tax under Code (S) 4999, the
Committee may determine whether some amount of payments (including accelerated
vesting) would meet the definition of a "Reduced Amount" (as defined below). If
the Committee determines that there is a Reduced Amount, the total payments
(including accelerated vesting) to the Optionee hereunder must be reduced to
such Reduced Amount, but not below zero. If the Committee determines that the
payments must be reduced to the Reduced Amount, the Company must promptly notify
the Optionee of that determination, with a copy of the detailed calculations by
the Committee. All determinations of the Committee under this Section 7.6 are
binding upon the Company and the Optionee. It is the intention of the Company
and the Optionee to reduce the payments under this Plan only if the aggregate
Net After Tax Receipt (as defined below) to the Optionee would thereby be
increased. As a result of the uncertainty in the application of Code Section
4999 at the time of the initial determination by the Committee under this
Section 7.6, however, it is possible that amounts will have been paid under the
Plan to or for the benefit of an Optionee which should not have been so paid
("Overpayment") or that additional amounts which will not have been paid under
the Plan to or for the benefit of an Optionee could have been so paid
("Underpayment") - in each case, consistent with the calculation of the Reduced
Amount. If the Committee, based either upon the assertion of a deficiency by the
Internal Revenue Service against the Company or the Optionee which the Committee
believes has a high probability of success or upon controlling precedent or
other substantial authority, determines that an Overpayment has been made, it
must be treated for all purposes as a loan which the Optionee must repay to the
Company together with interest at the applicable federal rate under Code Section
7872(f)(2); provided, however, that no such loan may be deemed to have been made
and no amount shall be payable by Optionee to the Company if and to the extent
such deemed loan and payment would not either reduce the amount on which the
Optionee is subject to tax under Code Section 1, 3101 or 4999 or generate a
refund of such taxes. If the Committee, based upon controlling precedent or
other substantial authority, determines that an Underpayment has occurred, the
Committee must promptly notify the Optionee of the amount of the Underpayment,
which the Company then shall pay to the Optionee. For purposes of this section,
(i) "Net After Tax Receipt" means the Present Value of a payment under this Plan
reduced by all taxes imposed on Optionee with respect thereto under Code
Sections 1, 3101 and 4999, determined by applying the highest marginal rate
under Code section 1 which applied to the Optionee's taxable income for the
immediately preceding taxable year; (ii) "Present Value" means the value
determined in accordance with Code Section 280G(d)(4); and (iii) "Reduced
Amount" means the smallest aggregate amount of all payments under this Plan
which (a) is less than the sum of all payments under this Plan and (b) results
in aggregate Net After Tax Receipts which are equal to or greater than the Net
After Tax Receipts which would result if the aggregate payments under this Plan
were any other amount less than the sum of all payments to be made under this
Plan.

                                       14
<PAGE>

                                   ARTICLE 8
               Agreement by Optionee and Securities Registration

     8.1  Agreement. If, in the opinion of counsel to the Company, such action
is necessary or desirable, no Options shall be granted to any Optionee and no
Option shall be exercisable and no shares of Common Stock will be issuable under
an Option, unless, at the time of grant or exercise, as applicable, the Optionee
(i) represents and warrants that he will acquire the Common Stock for investment
only and not for purposes of resale or distribution, and (ii) makes such further
representations and warranties as are deemed necessary or desirable by counsel
to the Company with regard to holding and resale of the shares of Common Stock.
The Optionee shall, upon the request of the Committee, execute and deliver to
the Company an agreement or affidavit to such effect. Should the Committee have
reasonable cause to believe that such Optionee did not execute such agreement or
affidavit in good faith, the Company shall not be bound by the grant of the
Option or by the exercise of the Option. All certificates representing shares of
Common Stock issued pursuant to the Plan shall be marked with the following
restrictive legend or similar legend, if such marking, in the opinion of counsel
to the Company, is necessary or desirable:

          The shares represented by this certificate [have not
          been registered under the Securities Act of 1933, as
          amended, or the securities laws of any state] [and]
          [are held by an "affiliate" (as such term is defined in
          Rule 144 promulgated by the Securities and Exchange
          Commission under the Securities Act of 1933, as
          amended) of the Corporation]. Accordingly, these shares
          may not be sold, hypothecated, pledged or otherwise
          transferred except (i) pursuant to an effective
          registration statement under the Securities Act of
          1933, as amended, and any applicable securities laws or
          regulations of any state with respect to such shares,
          (ii) in accordance with Securities and Exchange
          Commission Rule 144, or (iii) upon the issuance to the
          Corporation of a favorable opinion of counsel or the
          submission to the Corporation of such other evidence as
          may be satisfactory to the Corporation that such
          proposed sale, assignment, encumbrance or other
          transfer will not be in violation of the Securities Act
          of 1933, as amended, or any applicable securities laws
          of any state or any rules or regulations thereunder.
          Any attempted transfer of this certificate or the
          shares represented hereby which is in violation of the
          preceding restrictions will not be recognized by the
          Corporation, nor will any transferee be recognized as
          the owner thereof by the Corporation.

If the Common Stock is (A) held by an Optionee who is not an "affiliate," as
that term is defined in Rule 144 of the 1933 Act, or who ceases to be an
"affiliate," or (B) registered under the 1933 Act and all applicable state
securities laws and regulations as provided in Section 8.2, the

                                       15
<PAGE>

Committee, in its discretion and with the advice of counsel, may dispense with
or authorize the removal of the restrictive legend set forth above or the
portion thereof which is inapplicable.

     8.2  Registration. In the event that the Company in its sole discretion
shall deem it necessary or advisable to register under the 1933 Act or any state
securities laws or regulations, any shares of Common Stock with respect to which
Options have been granted hereunder, then the Company shall take such action at
its own expense before delivery of the certificates representing such shares to
an Optionee. In such event, and if the shares of Common Stock of the Company
shall be listed on any national securities exchange or on NASDAQ at the time of
the exercise of any Option, the Company shall make prompt application at its own
expense for the listing on such stock exchange or NASDAQ of the shares of Common
Stock to be issued.

     8.3  Compliance with the Securities Law. No Option shall be exercisable, no
Common Stock shall be issued, no certificates for shares of Common Stock shall
be delivered, and no payment shall be made except in compliance with all
applicable federal and state laws and regulations including, without limitation,
withholding tax requirements and securities laws, any listing agreement with any
stock exchange to which the Company is a party, and the rules of all domestic
stock exchanges on which the Company's shares of Common Stock may be listed. The
Company shall have the right to rely on an opinion of its counsel as to such
compliance. Any certificates issued to evidence Common Stock for which an Option
is exercised may bear such legends and statements as the Committee may deem
advisable to assure compliance with federal and state laws and regulations. No
Option shall be exercisable, no Common Stock shall be issued, no certificate for
shares of Common Stock shall be delivered, and no payment shall be made under
this Plan until the Company has obtained such consent or approval as the
Committee may deem advisable from regulatory bodies having jurisdiction over
such matters.

     8.4  Postponement of Exercise. The Committee may postpone any exercise of
an Option for such time as the Committee in its sole discretion may deem
necessary in order to permit the Company (i) to effect, amend or maintain any
necessary registration of the Plan or the shares of Common Stock issuable upon
the exercise of any Option under the securities laws; (ii) to permit any action
to be taken in order to (A) list such shares of Common Stock on an exchange if
shares of Common Stock are then listed on such exchange or (B) comply with
restrictions or regulations incident to the maintenance of a public market for
its shares of Common Stock, including any rules or regulations of any exchange
on which the shares of Common Stock are listed, or (iii) to determine that such
shares of Common Stock in the Plan are exempt from such registration or that no
action of the kind referred to in subsection (ii)(B) above needs to be taken;
and the Company shall not be obligated by virtue of any terms and conditions of
any Option Agreement or any provision of the Plan to recognize the exercise of
an Option or to sell or issue shares of Common Stock in violation of the
securities laws or the laws of any government having jurisdiction thereof. Any
such postponement shall not extend the term of the Option and neither the
Company nor its directors or officers shall have any obligation or liability to
any Optionee or to any other person with respect to shares of Common Stock as to
which the Option shall lapse because of such postponement.

                                       16
<PAGE>

                                   ARTICLE 9
                                Effective Date

     The Plan was first adopted by the Board on February 17, 2000, which is the
Effective Date.  Effective August 3, 2000, all Options granted hereunder shall
be governed by the terms of this Amended and Restated Plan, including Options
previously granted under the Plan; provided, however, that the terms of the Plan
prior to this amendment shall apply to a previously-granted Option to the extent
that the terms of this amended and restated Plan would have a material adverse
effect on the rights of a Participant under such previously-granted Option,
unless the Participant has given consent to the change.

                                  ARTICLE 10
                           Amendment and Termination

     10.1  Amendment and Termination By the Board. Subject to Section 10.2
below, the Board shall have the power at any time to add to, amend or repeal any
of the provisions of the Plan, to suspend the operation of the entire Plan or
any of its provisions for any period or periods or to terminate the Plan in
whole or in part. In the event of any such action, the Committee shall prepare
written procedures which, when the Board approves them, shall govern the
administration of the Plan resulting from such addition, amendment, repeal,
suspension or termination.

     10.2  Restrictions on Amendment and Termination. Notwithstanding the
provisions of Section 10.1 above, no addition, amendment, repeal, suspension or
termination shall adversely affect, in any way, the rights of the Optionees who
have outstanding Options without the consent of such Optionees.

                                   ARTICLE 11
                            Miscellaneous Provisions

     11.1  Application of Funds. The proceeds the Company receives from the sale
of the Common Stock subject to the Options granted hereunder will be used for
general corporate purposes.

     11.2  Notices. All notices or other communications by an Optionee to the
Committee pursuant to or in connection with the Plan shall be deemed to have
been duly given when received in the form the Committee specifies at the
location, or by the person, the Committee designates for the receipt thereof.

     11.3  Term of Plan. Subject to the terms of Article 10, the Plan shall
terminate upon the later of (i) the complete exercise or lapse of the last
outstanding Option, or (ii) the last date upon which Options may be granted
hereunder.

                                       17
<PAGE>

     11.4  Governing Law.  The Plan shall be governed by and construed in
accordance with the laws of the State of Georgia.

     11.5  Additional Provisions By Committee. The Option Agreements authorized
under the Plan may contain such other provisions, including, without limitation,
restrictions upon the exercise of an Option, as the Committee shall deem
advisable.

     11.6  Plan Document Controls.  In the event of any conflict between the
provisions of an Option Agreements and the Plan, the Plan shall control.

     11.7  Gender and Number.  Wherever applicable, the masculine pronoun shall
include the feminine pronoun, and the singular shall include the plural.

     11.8  Headings.  The titles in this Plan are inserted for convenience of
reference; they constitute no part of the Plan and are not to be considered in
the construction hereof.

     11.9  Legal References.  Any references in this Plan to a provision of law
which is, subsequent to the Effective Date of this Plan, revised, finalized or
redesignated, shall automatically be deemed a reference to such revised,
finalized or redesignated provision of law.

     11.10 No Rights to Employment. Nothing contained in the Plan, or any
modification thereof, shall be construed to give any individual any rights to
employment with the Company or a Related Entity. Neither the adoption of this
Plan, its operation nor any Option Agreement shall in any way affect the right
and power of the Company or a Related Entity to terminate the employment or
service of any employee at any time with or without assigning a reason therefor.

     11.11 Unfunded Arrangement. The Plan shall not be funded, and except for
reserving a sufficient number of authorized shares of Common Stock to the extent
the law requires to meet the requirements of the Plan, the Company shall not be
required to establish any special or separate fund or to make any other
segregation of assets to assure the payment of any grant under the Plan. Any
liability of the Company to any person with respect to any grant of Options
under the Plan shall be based solely upon any contractual obligations that may
be created thereunder. No such obligation of the Company shall be deemed to be
secured by any pledge of or other encumbrance on any property of the Company.

     11.12 Reservation of Shares. The Company, during the term of this Plan,
shall at all times reserve and keep available such number of shares of Common
Stock as shall be sufficient to satisfy the requirements of the Plan.
Additionally, the Company, during the term of this Plan, shall use its best
efforts to seek to obtain from appropriate regulatory agencies any requisite
authorizations needed in order to issue and to sell such numbers of shares of
Common Stock as shall be sufficient to satisfy the requirements of the Plan.
However, the inability of the Company to obtain from any such regulatory agency
the requisite authorizations the Company's counsel deems to be necessary for the
lawful issuance and sale of any shares of Common Stock hereunder, or the
inability of the Company to confirm to its satisfaction that any issuance and
sale of any shares of Common Stock hereunder will meet applicable legal
requirements, shall

                                       18
<PAGE>

relieve the Company of any liability with respect to the failure to issue or to
sell such shares of Common Stock as to which such requisite authority shall not
have been obtained.

ADOPTED BY BOARD OF DIRECTORS OF THE COMPANY ON THE 3rd DAY OF AUGUST, 2000.

                                   EXECUTION

     IN WITNESS WHEREOF, the undersigned officer has executed this Amended and
Restated Plan on this the 4th day of August, 2000, but to be effective as of the
dates specified in Article 9.

                                NOVA CORPORATION

                                 By: /s/ Carole A. Loftin
                                     --------------------------

                                 Its: Vice President and Corporate Counsel

                                       19

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