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                                                                    EXHIBIT 4.12

                  IONA TECHNOLOGIES PLC NON-EXECUTIVE DIRECTORS
                             CHANGE IN CONTROL PLAN

                        EFFECTIVE AS OF FEBRUARY 28, 2003

I.    PURPOSE.

      This IONA Technologies PLC Non-Executive Directors Change in Control Plan
(the "Plan") is intended to (a) provide sufficient compensation to Non-Executive
Directors for the additional services they will be required to provide in their
respective capacities as members of the Board in connection with a Change in
Control; (b) more closely align the interests of Non-Executive Directors with
those of shareholders of the Company with respect to any Change in Control that
may benefit the shareholders; (c) induce the Company's Non-Executive Directors
who have significantly contributed to the Company's business, growth and
financial strength, to continue to serve on the Board; and (d) more fully enable
the Board to evaluate any Change in Control transaction objectively.

II.   CERTAIN DEFINITIONS.

      As used in this Plan, the following terms shall have the meanings set
forth herein:

      A.    "Board" shall mean the Board of Directors of the Company (as
hereinafter defined).

      B.    "Change in Control" shall mean the occurrence of any one or more of
the following events:

            (i)   The Company is merged or consolidated or reorganized into or
                  with another corporation or other legal person, and as a
                  result of such merger, consolidation or reorganization less
                  than fifty percent (50%) of the combined voting power of the
                  then-outstanding securities of such surviving, resulting or
                  reorganized corporation or person immediately after such
                  transaction is held in the aggregate by the holders of the
                  then-outstanding securities entitled to vote generally in the
                  election of directors of the Company ("Voting Stock")
                  immediately prior to such transaction;

            (ii)  The Company sells or otherwise transfers all or substantially
                  all of its assets to any other corporation or other legal
                  person, and as a result of such sale or transfer less than
                  fifty percent (50%) of the combined voting power of the
                  then-outstanding securities of such corporation or person
                  immediately after such sale or transfer is held in the
                  aggregate by the holders of Voting Stock of the Company
                  immediately prior to such sale or transfer;
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            (iii) Any corporation or other legal person, pursuant to a tender
                  offer, exchange offer, purchase of stock (whether in a market
                  transaction or otherwise) or other transaction or event
                  acquires securities representing 30% or more of the Voting
                  Stock of the Company, or there is a report filed on Schedule
                  13D or Schedule 14D-1 (or any successor schedule, form or
                  report), each as promulgated pursuant to the U.S. Securities
                  Exchange Act of 1934, as amended (the "Exchange Act"),
                  disclosing that any "person" (as such term is used in Section
                  13(d)(3) or Section 14(d)(2) of the Exchange Act) has become
                  the "beneficial owner" (as such term is used in Rule 13d-3
                  under the Exchange Act) of securities representing 30% or more
                  of the Voting Stock of the Company;

            (iv)  The Company files a report or proxy statement with the
                  Securities and Exchange Commission pursuant to the Exchange
                  Act disclosing under or in response to Form 6-K, 8-K or
                  Schedule 14A (or any successor schedule, form or report or
                  item therein) that a change in control of the Company has
                  occurred; or

            (v)   If during any period of two consecutive years, individuals who
                  at the beginning of any such period constitute the Board cease
                  for any reason to constitute at least a majority thereof,
                  unless the election, or the nomination for election by the
                  Company's stockholders, of each director of the Company first
                  elected during such period was approved by a vote of at least
                  a majority of the directors then still in office who were
                  directors of the Company at the beginning of any such period;

provided, however, that a "Change in Control" shall not be deemed to have
occurred for purposes of this Plan solely because (i) the Company, (ii) an
entity in which the Company directly or indirectly beneficially owns 50% or more
of the Voting Stock, or (iii) any Company-sponsored employee stock ownership
plan or any other employee benefit plan of the Company either files or becomes
obligated to file a report or a proxy statement under or in response to Schedule
13D, Schedule 14D-1, Form 6-K, 8-K or Schedule 14A (or any successor schedule,
form or report) under the Exchange Act, disclosing beneficial ownership by it of
shares of Voting Stock or because the Company reports that a change in control
of the Company has occurred by reason of such beneficial ownership.

      C.    "Change in Control Agreement" shall mean any Change in Control
Agreement entered into by and among the Company, IONA Technologies, Inc. ("IONA,
Inc.") and any officer of the Company on or after the date hereof, which form of
such agreement was approved by the Board on February 28, 2003.

      D.    "Company" shall mean IONA Technologies PLC and its Successors (as
hereinafter defined) and assigns.
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      E.    "Fees" shall mean the maximum aggregate fees that a Non-Executive
Director is eligible to receive with respect to services rendered in his or her
capacity as a member of the Board or any committee thereof either in the
calendar year in which a Change in Control occurs or the calendar year prior
thereto, whichever aggregate amount is higher (in either case, determined as if
the Non-Executive Director continues to serve on the Board through such entire
calendar year), for (i) service on the Board; (ii) attendance at Board meetings;
(iii) service as Chairman of the Board; (iv) attendance at committee meetings of
the Board on which committee(s) the Non-Executive Director serves; (v) service
as chairman of a committee of the Board at committee meetings for which the
Non-Executive Director serves as chairman; and (vi) any other fees that a
Non-Executive Director is eligible to receive in connection with his or her
service on the Board or any committee thereof.

      F.    "Non-Executive Director" shall mean any individual who (a) serves on
the Board, including the Chairman of the Board; (b) is not an employee of the
Company or any of its subsidiaries; (c) is not designated by the Board as an
executive officer of the Company pursuant to Section 16 of the U.S. Securities
Exchange Act; and (d) is not a party to a Change in Control Agreement.

      G.    "Stock Plans" shall mean the IONA Technologies PLC 1997 Share Option
Scheme, the IONA Technologies Limited Executive Share Option Scheme, and any
other stock or stock option plans established and maintained by the Company from
time to time and pursuant to which a Non-Executive Director holds any options,
stock, awards and/or purchase rights, each as may be or may have been amended,
but excluding the 1997 Director Share Option Scheme, the IONA Technologies PLC
1999 Employee Stock Purchase Plan and any other plan adopted by the Company or
any of its subsidiaries pursuant to Section 423 of the United States Internal
Revenue Code of 1986, as amended (the "Code").

      H.    "Successor" shall mean any successor to the Company (whether direct
or indirect, by Change in Control, operation of law or otherwise), including but
not limited to any successor (whether direct or indirect, by Change in Control,
operation of law or otherwise) to, or ultimate parent entity of any successor
to, the Company.

III.  ELIGIBILITY.

      A Non-Executive Director shall be eligible under the Plan for the duration
that (A) such individual meets the qualifications set forth in Section II.F
hereof and (B) the Plan remains in effect.

IV.   ADDITIONAL BOARD SERVICE COMPENSATION.

      In the event of the first Change in Control, if any, to occur while this
Plan is in effect, then in consideration of the additional services to be
rendered in his or her capacity as a member of the Board related to evaluation
of a potential Change in Control, each eligible Non-Executive Director shall be
entitled to the following:
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      A.    Any unvested stock, stock options, awards and rights granted to each
such Non-Executive Director pursuant to (1) the 1997 Director Share Option
Scheme, as it may be or may have been amended, shall become fully vested and
exercisable in accordance with the terms of such Scheme; and (2) any Stock Plans
shall immediately become fully vested and exercisable as of the effective date
of such Change in Control.

      B.    Each eligible Non-Executive Director shall be entitled to receive a
payment in an amount equal to the Fees, multiplied by two (2) (the "Additional
Board Service Fee," together with the benefits set forth in Section IV.A, the
"Additional Board Service Compensation"). Payment of the Additional Board
Service Fee shall be made, at the Non-Executive Director's election, in either a
lump sum payment on the effective date of the Change in Control or any other
date designated by the Non-Executive Director, or in monthly, ratable payments
over the twenty-four month period following such effective date.

      C.    The Additional Board Service Compensation set forth in this Section
IV shall be subject to any applicable federal, state, local, or foreign taxes or
withholdings.

V.    CONDITION OF ADDITIONAL BOARD SERVICE FEE.

      A Non-Executive Director will not be eligible for any Additional Board
Service Fee unless the Non-Executive Director executes a general mutual release
agreement, in a form and of a scope reasonably acceptable to the Company and the
Non-Executive Director.

VI.   ENTIRE PLAN.

      This Plan expressly supersedes, cancels and renders null and void any
plans, policies, practices, agreements or arrangements concerning any change in
control or severance payments or benefits that may have been proposed, offered,
discussed, agreed upon, approved, contemplated or in effect, by or between the
Company and any Non-Executive Director(s) solely in their capacity as such at
any time prior to the date hereof.

VII.  CERTAIN REDUCTION OF PAYMENTS.

      If (A) (i) the Additional Board Service Compensation set forth in Section
IV, and/or (ii) any payment or benefit received or to be received by a
Non-Executive Director pursuant to any other plan, arrangement or agreement
(such payments or benefits together with the Additional Board Service
Compensation, the "Total Payments") would constitute (in whole or in part) an
"excess parachute payment" within the meaning of Section 280G(b) of the Code and
(B) such Non-Executive Director would retain more of the Total Payments (after
the payment of applicable tax liabilities imposed on the Total Payments) in the
event that the Cap (defined below) is imposed, then the amount of the Total
Payments shall be reduced until the aggregate "present value" (as that term is
defined in Section 280G(d)(4) of the Code using the applicable federal rate in
effect on the date hereof) of the Total Payments is such that no part of the
Total Payments constitutes an "excess parachute payment" within the meaning of
Section 280G(b) of the Code (the "Cap").
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VIII. MISCELLANEOUS.

      A.    Right to Modify/Terminate. The Board, in its sole discretion and
            upon its action, may modify or terminate this Plan at any time prior
            to the first Change in Control to occur after the date hereof. The
            Board may modify or terminate this Plan upon or after the first
            Change in Control only upon the prior written consent of all
            individuals who were Non-Executive Directors immediately prior to
            such Change in Control, who are eligible under the Plan as of the
            time of the proposed modification or termination, and who may be
            adversely affected by any such modification or termination.

      B.    Severability/Reformation. If any provision of this Plan or the
            application of any provision hereof to any person or circumstances
            is held invalid, unenforceable or otherwise illegal, the remainder
            of this Plan and the application of such provision to any other
            person or circumstances shall not be affected, and the provision so
            held to be invalid, unenforceable or otherwise illegal shall be
            reformed to the extent (and only to the extent) necessary to make it
            enforceable, valid and legal. The language of all parts of this Plan
            shall in all cases be construed as a whole according to its fair
            meaning and not strictly for or against any party.

      C.    Plan in Effect. The Plan shall be effective as of the date hereof
            and shall remain in effect until the tenth day following the
            two-year anniversary of the first Change in Control to occur after
            the date hereof, unless terminated earlier under Section VIII.A
            hereof; provided, however, that the Plan shall in any event remain
            in effect for so long as is necessary to ensure full compliance by
            the Company with the obligations hereunder.

      D.    Governing Law. This Plan and any claims arising out of it shall be
            governed by and construed in accordance with the laws of the
            Commonwealth of Massachusetts and shall in all respects be
            interpreted, enforced and governed under the internal and domestic
            laws of such state, without giving effect to the principles of
            conflicts of laws of such state. Moreover, the Company and the
            Non-Executive Directors hereby irrevocably submit to the exclusive
            jurisdiction of the state or federal courts of Massachusetts with
            respect to any claims arising out of or in connection with this Plan
            and agree not to commence any such claims or actions other than in
            such courts.

      E.    Successors and Assigns. The Board will require any assignee of the
            Company, and any Successor in any consensual transaction, expressly
            to assume this Plan and to agree to perform hereunder in the same
            manner and to the same extent that would have been required had no
            such succession or assignment had taken place. Regardless of whether
            such an agreement is executed, this Plan shall inure to the benefit
            of, and be binding upon, the Company's Successors and assigns and
            the respective heirs, estate, legatees, executors, administrators,
            and legal representatives of each Non-Executive Director.
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      F.    Binding Effect. Subject to Section VIII.A, in addition to the other
            provisions herein and for avoidance of any doubt, each Non-Executive
            Director shall be entitled to rely upon this Plan and to enforce
            this Plan against the Company and, upon following any one or more
            Change in Control, against each and every Successor. Without
            limiting the generality of the foregoing, each Non-Executive
            Director shall be a third-party beneficiary hereto and shall have
            the right to enforce this Plan upon and following a Change in
            Control, in law, as a contract, benefit plan and otherwise, as well
            as in equity. Moreover, the prevailing party in any action arising
            out of or in connection with this Plan shall be entitled to payment,
            by the other party, of the prevailing party's reasonable expenses
            and attorneys' fees incurred in connection with such action.

      G.    No Mitigation. All Additional Board Service Fees shall be liquidated
            damages, and no Non-Executive Director shall be required to mitigate
            the amount of any Additional Board Service Fees, nor shall any
            profits, fees, income, earnings or other benefits from any source
            whatsoever create any mitigation, offset, reduction or any other
            obligation on the part of Non-Executive Director hereunder or
            otherwise.

      H.    Exclusive Remedy. Except as expressly set forth herein or otherwise
            required by law, Non-Executive Directors shall not be entitled to
            any fees, compensation, benefits, or other payments from the Company
            as a result of or in connection with a Change in Control.

      I.    Section Headings. The descriptive section headings herein have been
            inserted for convenience only and shall not be deemed to define,
            limit, or otherwise affect the construction of any provision hereof.<PAGE>

                                                                    EXHIBIT 4.13

                           CHANGE IN CONTROL AGREEMENT

      This Change in Control Agreement (the "Agreement") is made and entered
into as of March   , 2003 (the "Execution Date"), by and among IONA
Technologies, Inc., a Delaware corporation ("IONA, Inc."), its parent, IONA
Technologies PLC, a public limited company organized under the laws of Ireland
(the "Company"), and _____________ ("Executive").

      WHEREAS, Executive currently is an employee of IONA, Inc. and an Executive
Officer (as hereinafter defined), and has made and is expected to continue to
make significant contributions to the business, growth and financial strength of
the Company and the Group (as hereinafter defined);

      WHEREAS, the Company recognizes that, as is the case for most publicly
held companies, the possibility of a Change in Control (as hereinafter defined)
exists, which may alter the nature and structure of the Company, and recognizes
that the uncertainty regarding the consequences of such an event adversely
affects the Company's ability to retain Executive as an Executive Officer and
IONA Inc.'s ability to retain Executive in its employ;

      WHEREAS, the Company and IONA, Inc. desire to more closely align
Executive's interests with those of the shareholders of the Company with respect
to any Change in Control that may benefit the shareholders;

      WHEREAS, the Company and IONA, Inc. desire to assure themselves of both
present and future continuity of management in the event of a Change in Control,
and desire to induce Executive to remain employed with IONA, Inc. by
establishing certain benefits for Executive applicable under certain
circumstances in the event of a Change in Control, and Executive desires to be
so induced; and

      WHEREAS, the parties desire to set forth in writing the terms and
conditions of their agreement with respect to the provision of benefits for
Executive applicable under certain circumstances in the event of a Change in
Control;

      NOW, THEREFORE, in consideration of the premises and the mutual covenants
and obligations herein contained, it is agreed among the parties hereto as
follows:

      1.    Term. This Agreement shall continue for a term commencing on the
Execution Date and ending on the date one year thereafter ("Initial Term"), and
shall be automatically renewed from year to year thereafter for successive
one-year terms (each a "Renewal Term") unless ninety (90) days prior to the
expiration of the initial term or any renewal term, any party gives written
notice of non-renewal to the other parties; provided that any such notice
provided by the Company or IONA, Inc. any time during the period beginning on
the date that is three months prior to the date upon which a definitive
agreement for a Change in Control is publicly announced as having been executed
by the Company (the "Announcement Date") and ending on the second anniversary of
the effective date of a Change in Control, shall have no effect whatsoever, and
the Agreement shall continue in force until such time as otherwise terminated in
accordance with the terms hereof. If an effective notice of non-renewal is given
as permitted hereunder, this Agreement will expire at the conclusion of either
the initial term or the renewal term, whichever is applicable, unless terminated
earlier in accordance with Section 2 hereof. The "Term" of this Agreement shall
include the Initial Term, as well as any Renewal Term, if applicable, subject to
termination at any time prior to the expiration of the Term as provided in
Section 2 hereof; provided, however, that in the event of the first Change in
Control to occur during the Term (including after any notice of non-renewal is
given), the Term shall automatically continue through the second anniversary of
the effective date of such Change in Control.
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      2.    At-Will Status. Notwithstanding any provision of this Agreement,
Executive will remain employed at-will, so that Executive, IONA, Inc. or any
other member of the Group by which Executive may become employed from time to
time, may terminate Executive's employment at any time, with or without notice,
for any or no reason, and this Agreement shall not create or imply any right or
duty of Executive or any member of the Group to have Executive remain in the
employ thereof for any period of time. This Agreement shall automatically
terminate on the earliest date of (a) Executive's Termination Date (as
hereinafter defined) if Executive's employment ceases for any reason other than
due to an Involuntary Termination Upon a Change in Control or a Resignation for
Good Reason Upon a Change in Control (as such terms are hereinafter defined);
provided, however, that if, immediately following such cessation of employment,
Executive becomes employed by another member of the Group, then this Agreement
shall not terminate but shall remain in effect until such time as otherwise
terminated in accordance with this Agreement; or (b) the date upon which
Executive ceases to hold an Executive Office (as hereinafter defined), if
Executive remains an employee of IONA, Inc. or any other member of the Group on
such date and if such date occurs prior to a Change in Control; or (c) the date
immediately following the two-year anniversary of the effective date of the
first Change in Control to occur during the Term; provided, that,
notwithstanding any provision in this Agreement to the contrary, if Executive's
employment ceases due to an Involuntary Termination Upon a Change in Control or
a Resignation for Good Reason Upon a Change in Control, this Agreement shall
remain in effect until all obligations of the parties hereunder have been fully
satisfied.

      3.    Definitions. As used in this Agreement, the following terms shall
have the meanings set forth herein:

            a.    "Cause" shall mean any one or more of the following: (i)
Executive's willful failure or refusal (except due to Disability (as hereinafter
defined)) to perform substantially his/her duties on behalf of IONA, Inc. or any
other member of the Group by which he may become employed (as the case may be)
for a period of thirty (30) days after receiving written notice identifying in
reasonable detail the nature of such failure or refusal; (ii) Executive's
conviction of, or entry of a plea of guilty or nolo contendere to, a felony;
(iii) disloyalty, willful misconduct or breach of fiduciary duty by Executive
which causes material harm to any member of the Group; or (iv) Executive's
willful violation of any confidentiality, developments or non-competition
agreement which causes material harm to any member of the Group. Notwithstanding
the foregoing, Executive shall not be deemed to have been terminated for Cause
unless and until there shall have been delivered to him a copy of a resolution
duly adopted by the Company's Board of Directors (the "Board") (excluding
Executive if he is a Director) at a meeting of the Board called and held for
(but not necessarily exclusively for) that purpose (after reasonable notice to
Executive and an opportunity for Executive, together with counsel of his choice,
to be heard by the Board) finding that Executive has, in the good faith opinion
of the Board, engaged in conduct constituting Cause and specifying the
particulars thereof in reasonable detail.

            b.    "Change in Control" shall mean the occurrence of any of the
following events:

                  (i)   The Company is merged or consolidated or reorganized
into or with another corporation or other legal person, and as a result of such
merger, consolidation or reorganization less than fifty percent (50%) of the
combined voting power of the then-outstanding securities of such surviving,
resulting or reorganized corporation or person immediately after such
transaction is held in the aggregate by the holders of the then-outstanding
securities entitled to vote generally in the election of directors of the
Company ("Voting Stock") immediately prior to such transaction;

                  (ii)  The Company sells or otherwise transfers all or
substantially all of its assets to any other corporation or other legal person,
and as a result of such sale or transfer less than fifty percent (50%) of the
combined voting power of the then-outstanding securities of such corporation or

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person immediately after such sale or transfer is held in the aggregate by the
holders of Voting Stock of the Company immediately prior to such sale or
transfer;

                  (iii) Any corporation or other legal person, pursuant to a
tender offer, exchange offer, purchase of stock (whether in a market transaction
or otherwise) or other transaction or event acquires securities representing 30%
or more of the Voting Stock of the Company, or there is a report filed on
Schedule 13D or Schedule 14D-1 (or any successor schedule, form or report), each
as promulgated pursuant to the U.S. Securities Exchange Act of 1934, as amended
(the "Exchange Act"), disclosing that any "person" (as such term is used in
Section 13(d)(3) or Section 14(d)(2) of the Exchange Act) has become the
"beneficial owner" (as such term is used in Rule 13d-3 under the Exchange Act)
of securities representing 30% or more of the Voting Stock of the Company;

                  (iv)  The Company files a report or proxy statement with the
Securities and Exchange Commission pursuant to the Exchange Act disclosing under
or in response to Form 6-K, 8-K or Schedule 14A (or any successor schedule, form
or report or item therein) that a change in control of the Company has occurred;
or

                  (v)   If during any period of two consecutive years,
individuals who at the beginning of any such period constitute the Board cease
for any reason to constitute at least a majority thereof, unless the election,
or the nomination for election by the Company's stockholders, of each director
of the Company first elected during such period was approved by a vote of at
least a majority of the directors then still in office who were directors of the
Company at the beginning of any such period;

provided, however, that a "Change in Control" shall not be deemed to have
occurred for purposes of this Agreement solely because (i) the Company, (ii) an
entity in which the Company directly or indirectly beneficially owns 50% or more
of the Voting Stock, or (iii) any Company-sponsored employee stock ownership
plan or any other employee benefit plan of the Company, either files or becomes
obligated to file a report or a proxy statement under or in response to Schedule
13D, Schedule 14D-1, Form 6-K, 8-K or Schedule 14A (or any successor schedule,
form or report) under the Exchange Act, disclosing beneficial ownership by it of
shares of Voting Stock or because the Company reports that a change in control
of the Company has occurred by reason of such beneficial ownership.

            c.    "Company" shall mean IONA Technologies PLC, its assigns, and
its Successors.

            d.    "Disability" shall mean any physical or mental disability that
renders Executive unable to perform his/her essential job responsibilities for a
cumulative period of 180 days in any twelve-month period, where such disability
cannot be reasonably accommodated absent undue hardship.

            e.    "Executive Office" shall mean those offices of the Company
that the Board in its reasonable discretion may designate from time to time as
constituting an officer position pursuant to Section 16 of the Exchange Act;
provided, that for purposes of this Agreement, Executive Office shall be deemed
to include, without limitation, the Chief Executive Officer, Chief Operating
Officer, Chief Financial Officer, Chief Technology Officer, Executive Vice
President of Corporate Development and General Counsel. Any person holding an
Executive Office shall be an "Executive Officer."

            f.    "Group" shall mean IONA Technologies PLC, and any of its
subsidiaries, including without limitation, IONA, Inc.

            g.    "Involuntary Termination Upon a Change in Control" shall mean
the termination of the employment of Executive by IONA, Inc. or any other member
of the Group by which Executive may become employed (as the case may be) without
Cause at any time within the period beginning on the

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date that is three months prior to the Announcement Date and ending on the
second anniversary of the effective date of a Change in Control. "Involuntary
Termination Upon Change in Control" shall not include any termination of
Executive's employment (a) for Cause; (b) as a result of Executive's Disability;
(c) as a result of Executive's death; or (d) by Executive for any reason.

            h.    "Incentive Pay Eligibility" shall mean the aggregate amount of
any cash compensation derived from any bonus, incentive, performance,
profit-sharing or similar agreement, policy, plan or arrangement of any member
of the Group by which Executive is employed that Executive is eligible to
receive based upon the attainment of 100% target or quota with respect to any
one calendar year.

            i.    "Resignation for Good Reason Upon a Change in Control" shall
occur on the 31st day after receipt by each of the Company and IONA, Inc. of
Executive's notice pursuant to subsection (ii) below, if the conditions set
forth in all of subsections (i), (ii) and (iii) below occur:

                  (i)   Any of the following "Events" occur without Executive's
prior written consent during the two-year period beginning on the effective date
of a Change in Control:

                        (A)   The substantial reduction of (1) Executive's
                        aggregate base salary and Incentive Pay Eligibility, or
                        (2) the benefits for which Executive was eligible, in
                        either case, in effect immediately prior to a Change in
                        Control, except where such reduction is due to an
                        across-the-board reduction applicable to all senior
                        executives of IONA, Inc. or any other member of the
                        Group by which Executive may become employed (as the
                        case may be);

                        (B)   The substantial reduction in the scope or nature
                        of Executive's responsibilities, duties, authorities,
                        position, powers, or reporting structure or
                        relationships in effect immediately prior to a Change in
                        Control, except due to Executive's Disability or Cause;

                        (C)   The permanent relocation of Executive's primary
                        workplace to a location more than thirty-five (35) miles
                        away from Executive's workplace in effect immediately
                        prior to a Change in Control;

                        (D)   Failure to elect, reelect or otherwise maintain
                        Executive in any Executive Office that Executive held
                        immediately prior to a Change in Control (except due to
                        Executive's Disability or Cause); or

                        (E)   Failure of any Successor to, or assignee of, the
                        Company or IONA, Inc. (as the case may be) to assume the
                        duties and obligations of the Company or IONA, Inc.,
                        respectively, under this Agreement pursuant to Section
                        12 hereof; and

                  (ii)  Within sixty (60) days after any such Event, Executive
provides written notice to each of the Company and IONA, Inc. describing with
reasonable specificity the Event and stating his/her intention to resign from
employment due to such Event; and

                  (iii) The Company and/or IONA, Inc. do not cure, or cause to
be cured, such Event within thirty (30) days after receipt of Executive's
notice.

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<PAGE>
            j. "Stock Plans" shall mean the IONA Technologies PLC 1997 Share
Option Scheme, the IONA Technologies Limited Executive Share Option Scheme, and
any other stock plans or stock option plans established and maintained by the
Company at any time during the Term and pursuant to which Executive holds any
options, stock, awards and/or purchase rights, each as may be or may have been
amended, excluding the IONA Technologies PLC 1999 Employee Stock Purchase Plan
and any other plan adopted by the Company or any member of the Group pursuant to
Section 423 of the U.S. Internal Revenue Code of 1986, as amended (the "Code").

            k. "Successor" shall mean any successor to the Company or IONA, Inc.
(as the case may be) (whether direct or indirect, by Change in Control,
operation of law or otherwise), including but not limited to any successor
(whether direct or indirect, by Change in Control, operation of law or
otherwise) to, or ultimate parent entity of any successor to, the Company or
IONA, Inc. (as the case may be).

            l.    "Termination Date" shall mean Executive's last date of
employment with IONA, Inc. and every other member of the Group by which
Executive is employed.

      4.    Effect of a Change in Control. If a Change in Control occurs during
the Term, and the Company's Successor resulting from such Change in Control does
not, as of the effective date of such Change in Control, (a) adopt and assume
the Stock Plans that are in effect immediately prior to such Change in Control
or (b) substitute, on an equitable basis, such Successor's securities, having
terms and conditions no less favorable to the securityholder than the terms and
conditions of the then outstanding securities under the Stock Plans, for the
then outstanding stock, options, awards and purchase rights under the Stock
Plans, then all unvested stock, options, awards and purchase rights granted to
Executive under any of the Stock Plans prior to such Change in Control shall
immediately become fully vested and exercisable as of the effective date of a
Change in Control.

      5.    Effect of Involuntary Termination Upon a Change in Control or
Resignation for Good Reason Upon a Change in Control. In the event of an
Involuntary Termination Upon a Change in Control or a Resignation for Good
Reason Upon a Change in Control during the Term, Executive shall be entitled to
the following:

            a.    "Severance Benefits" as follows, subject to Section 6 hereof:

                  (i)   Payment of an amount equal to two times Executive's base
salary, at the highest annualized rate in effect during the period between the
date immediately prior to the effective date of a Change in Control and the
Termination Date, payable in accordance with Section 5.a (v) below;

                  (ii)  Payment of an amount equal to two times the highest
amount of Executive's Incentive Pay Eligibility with respect to any one calendar
year in the period beginning in the calendar year prior to that in which the
Change in Control occurs and ending in the calendar year in which Executive's
employment is terminated, payable in accordance with Section 5.a (v) below;

                  (iii) In the event Executive elects after the Termination Date
to continue health, vision and/or dental coverage pursuant to the Consolidated
Omnibus Budget Reconciliation Act of 1985 ("COBRA"), the Company will pay
Executive's monthly premium payments for each such coverage elected by Executive
for Executive and his or her eligible dependents, if applicable, until the
earliest of the following dates to occur with respect to each such elected
coverage: (A) the second anniversary of the Termination Date; (B) the date upon
which Executive becomes covered under a comparable group plan for such
applicable coverage; or (C) the date upon which Executive ceases to be eligible
for COBRA continuation for such applicable coverage; provided, that, in the
event the date set forth in clause (C) of

                                       5
<PAGE>
this subsection 5.a (iii) occurs prior to the second anniversary of the
Termination Date due to expiration of COBRA continuation for health, dental
and/or vision coverage, and as of such expiration date, the date described in
clause (B) of this subsection 5.a (iii) has not occurred with respect to such
applicable coverage, then the Company will pay for the cost of insurance
premiums for such applicable coverage incurred by Executive for Executive and
his or her eligible dependents, if applicable, from the date each COBRA coverage
expires until the earlier to occur of the dates set forth in this subsection 5.a
(iii) (A) or (B).

                  (iv)  Any and all unvested stock, stock options, awards and
rights that were granted to Executive under any of the Stock Plans prior to the
Termination Date shall immediately become fully vested and exercisable as of the
Termination Date or, if Executive's employment was terminated within the
three-month period prior to the Announcement Date, as of the Announcement Date
(whichever may apply, the "Vesting Date"). Notwithstanding any contrary
provision of any agreement relating to then outstanding stock, stock options,
awards and rights granted to Executive under any of the Stock Plans after the
Execution Date, all such stock, stock options, awards and rights granted after
the Execution Date may be exercised by Executive (or Executive's heirs, estate,
legatees, executors, administrators, and legal representatives) at any time
during the period ending on the earlier of (A) the later of (i) three (3) months
after the Vesting Date and (ii) if Executive dies within the three-month period
after the Vesting Date, the first anniversary of the date of Executive's death,
and (B) the scheduled expiration of such stock, stock option, award or right, as
the case may be. Executive hereby acknowledges and agrees that, as a result of
the operation of Section 4 and this subsection 5.a (iv), some or all of the
"incentive stock options" (as defined in the Code) granted to Executive under
the Stock Plans may no longer qualify as "incentive stock options" for U.S.
federal income tax purposes, and Executive hereby consents to any such
disqualification.

                  (v)   The payments set forth in subsections 5.a (i)-(iii)
above (the "Cash Severance Benefits") shall be payable, at Executive's election,
either (x) in a lump sum payment on the Vesting Date or on any other date
designated by Executive; or (y) in equal monthly installments over the
twenty-four (24) month period following the Vesting Date; provided that the
payments described in Section 5.a (iii) hereof shall be paid on a monthly basis.

            b.    Executive shall also be entitled to any unpaid compensation
and benefits, and unused vacation accrued, through the Termination Date.
Executive shall also be entitled to receive reimbursement for final expenses
that Executive reasonably and necessarily incurred on behalf of the Group prior
to the Termination Date, provided that Executive submits expense reports and
supporting documentation of such expenses as required by the practice or policy
in effect at that time. Executive shall not be eligible for or entitled to any
severance payments or benefits pursuant to a severance plan, program,
arrangement, practice or policy of any member of the Group, if any, that may be
in effect as of the Termination Date.

            c.    The parties hereto expressly agree that provision of the
Severance Benefits to Executive in accordance with the terms of this Agreement
will be liquidated damages, and that Executive shall not be required to mitigate
the amount of any payments provided for in this Agreement by seeking other
employment or otherwise, nor shall any profits, income, earnings or other
benefits from any source whatsoever create any mitigation, offset, reduction or
any other obligation on the part of Executive hereunder or otherwise.

            d.    If Executive's employment is terminated at any time for any
reason that does not constitute an Involuntary Termination Upon a Change in
Control or a Resignation for Good Reason Upon a Change in Control, Executive
shall not be entitled to, and shall not receive, any Severance Benefits
described in Section 5(a) of this Agreement, but in such instance, Executive
shall be entitled to receive

                                       6
<PAGE>
the payments and benefits set forth in the first two sentences of Section 5(b)
hereof and shall be eligible for any severance payments or benefits pursuant and
subject to a severance plan, program, arrangement, policy, practice or agreement
of any member of the Group, if any, for which Executive was eligible in
accordance with its terms prior to, and that may be in effect as of, the
Termination Date.

      6.    Conditions of Severance Benefits. Executive shall receive Severance
Benefits only if Executive: (a) executes a separation agreement, which includes
a general mutual release, in a form and of a scope reasonably acceptable to the
parties hereto; (b) presents satisfactory evidence to the Company and IONA, Inc.
that Executive has returned all property, confidential information and
documentation of the Group; (c) has complied and continues to comply in all
material respects with any noncompetition, inventions and/or nondisclosure
obligations that Executive may owe to any member of the Group, whether pursuant
to an agreement or applicable law; and (d) provides a signed, written
resignation of Executive's status as an officer, including, without limitation,
an Executive Officer, and director (if applicable) of every member of the Group,
effective as of the Termination Date. In the event that Executive has breached
any obligations described in Section 6(c) hereof, then (x) the Cash Severance
Benefits shall terminate and Executive shall no longer be entitled to them; (y)
Executive shall promptly repay to IONA, Inc. any Cash Severance Benefits
previously received by Executive; and (z) all options, awards and purchase
rights held by Executive shall no longer be exercisable as of the date of
Executive's breach. Such termination and repayment of Cash Severance Benefits
and cessation of the right to exercise shall be in addition to, and not in lieu
of, any and all available legal and equitable remedies, including injunctive
relief.

      7.    Taxes. All payments and benefits described in this Agreement shall
be subject to any and all applicable federal, state, local and foreign
withholding, payroll, income and other taxes.

      8.    Certain Reduction of Payments. If (a) (i) the Severance Benefits,
(ii) the benefits set forth in Section 4, and/or (iii) any payment or benefit
received or to be received by Executive pursuant to any other plan, arrangement
or agreement (collectively, the "Total Payments") would constitute (in whole or
in part) an "excess parachute payment" within the meaning of Section 280G(b) of
the Code, and (b) Executive would retain more of the Total Payments (after the
payment of applicable tax liabilities imposed on the Total Payments) in the
event that the Cap (defined below) is imposed, then the amount of the Total
Payments shall be reduced until the aggregate "present value" (as that term is
defined in Section 280G(d)(4) of the Code using the applicable federal rate in
effect on the date of this Agreement) of the Total Payments is such that no part
of the Total Payments constitutes an "excess parachute payment" within the
meaning of Section 280G(b) of the Code (the "Cap").

      9.    Exclusive Remedy. Except as expressly set forth herein or otherwise
required by law, Executive shall not be entitled to any compensation, benefits,
or other payments as a result of or in connection with the termination or
resignation of Executive's employment at any time, for any reason. The payments
and benefits set forth in Section 5 hereof shall constitute liquidated damages
and shall be Executive's sole and exclusive remedy for any claims, causes of
action or demands arising under or in connection with this Agreement or its
alleged breach, the termination or resignation of Executive's employment
relationship, or the cessation of holding an Executive Office.

      10.   Governing Law/Forum. The parties agree that any claims arising out
of or in connection with this Agreement shall be governed by and construed in
accordance with the laws of The Commonwealth of Massachusetts, and this
Agreement shall in all respects be interpreted, enforced and governed under the
internal and domestic laws of such State, without giving effect to the
principles of conflicts of laws thereof. In addition, each of the parties, by
its or his execution hereof, hereby irrevocably submits to the exclusive
jurisdiction of the state or federal courts of Massachusetts with respect to any
claims arising out of or in connection with this Agreement and agrees not to
commence any

                                       7
<PAGE>
such claims or actions other than in such courts. The prevailing party in any
action arising out of or in connection with this Agreement shall be entitled to
payment, by the other party, of the prevailing party's reasonable expenses and
attorneys' fees incurred in connection with such action.

      11.   Entire Agreement. This Agreement shall constitute the sole and
entire agreement among the parties with respect to the subject matter hereof,
and supersedes and cancels all prior, concurrent and/or contemporaneous
arrangements, understandings, promises, programs, policies, plans, practices,
offers, agreements and/or discussions, whether written or oral, by or among the
parties regarding the subject matter hereof, including, but not limited to,
those constituting or concerning employment agreements, change in control
benefits and/or severance benefits; provided, however, that this Agreement is
not intended to, and shall not, supersede, affect, limit, modify or terminate
any of the following, all of which shall remain in full force and effect in
accordance with their respective terms: (i) any programs, policies, plans,
arrangements or practices of the Group that do not relate to the subject matter
hereof; (ii) any written stock or stock option agreements between Executive and
the Company or any other member of the Group (except as expressly modified
hereby); (iii) any written agreements between Executive and any member of the
Group concerning noncompetition, nonsolicitation, inventions and/or
nondisclosure obligations; and (iv) any written agreements between Executive and
any member of the Group that do not relate to the subject matter hereof.

      12.   Successors and Assignment. Executive may not assign any rights or
delegate any duties or obligations under this Agreement. The Company and IONA,
Inc. will require their respective assigns and Successors in any consensual
transaction, expressly to assume this Agreement and to agree to perform
hereunder in the same manner and to the same extent that the Company or IONA,
Inc. (as the case may be) would be required to perform if no such succession or
assignment had taken place. Regardless of whether such an agreement is executed,
this Agreement shall inure to the benefit of, and be binding upon, IONA, Inc.
and the Company's respective Successors and assigns and Executive's heirs,
estate, legatees, executors, administrators, and legal representatives.

      13.   Notices. All notices required hereunder shall be in writing and
shall be delivered in person, by facsimile or by certified or registered mail
(or similar means for non-U.S. addresses), return receipt requested, and shall
be effective upon receipt if by personal delivery or facsimile or three (3)
business days after mailing if sent by certified or registered mail (or similar
means for non-U.S. addresses). All notices shall be addressed as follows or to
such other address as the parties may later provide in writing:

            (a)   if to the Company: at its U.S. headquarters, IONA
Technologies, Inc., 200 West Street, Waltham, Massachusetts 02451, Attn: General
Counsel;

            (b)   if to IONA, Inc.: IONA Technologies, Inc., 200 West Street,
Waltham, Massachusetts 02451, Attn: General Counsel; and

            (c)   if to Executive: at the home address specified on the
signature page of this Agreement.

      14.   Severability/Reformation. If any provision of this Agreement or the
application of any provision hereof to any person or circumstances is held
invalid, unenforceable or otherwise illegal, the remainder of this Agreement and
the application of such provision to any other person or circumstances shall not
be affected, and the provision so held to be invalid, unenforceable or otherwise
illegal shall be reformed to the extent (and only to the extent) necessary to
make it enforceable, valid and legal. The language of all parts of this
Agreement shall in all cases be construed as a whole according to its fair
meaning and not strictly for or against any of the parties.

                                       8
<PAGE>
      15.   Modification. This Agreement may be modified or waived only in
accordance with this Section 15. No waiver by any party of any breach by the
other or any provision hereof shall be deemed to be a waiver of any later or
other breach thereof or as a waiver of any other provision of this Agreement.
This Agreement and its terms may not be waived, changed, discharged or
terminated orally or by any course of dealing between or among the parties, but
only by a written instrument signed by the party against whom any waiver,
change, discharge or termination is sought. No modification or waiver by the
Company or IONA, Inc. (as the case may be) is effective without written consent
of the Chairman of the Board of the Company.

      16.   Survival of Obligations and Rights. Notwithstanding anything to the
contrary in this Agreement, provisions herein shall survive the termination of
Executive's employment due to an Involuntary Termination Upon a Change in
Control or a Resignation for Good Reason Upon a Change in Control or, other
expiration or termination of this Agreement, if so provided herein or if
necessary or desirable to fully accomplish the purposes of such provisions,
including the obligations and rights contained in Sections 4 through 19 hereof.

      17.   Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same instrument.

      18.   Section Headings. The descriptive section headings herein have been
inserted for convenience only and shall not be deemed to define, limit, or
otherwise affect the construction of any provision hereof.

      19.   Guarantee. In the event that IONA, Inc. or any other member of the
Group by which Executive may become employed (as the case may be) fails for any
reason to make any payments to which Executive becomes entitled under this
Agreement, the Company agrees to pay such unpaid amounts.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       9
<PAGE>
      IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date and year first written above.

                                    IONA Technologies, Inc.

                                    By:
                                        -----------------------------

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

                                    IONA Technologies PLC

                                    By:
                                        -----------------------------

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

                                    ---------------------------------
                                    Executive

Address for Notice to Executive:

--------------------------------

--------------------------------

--------------------------------

                                       10

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