Exhibit 3.15

                               State of Delaware
                                                                          PAGE 1
                        Office of the Secretary of State

      I, EDWARD J. FREEL, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY
CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS ON FILE OF
"RELOCATION MANAGEMENT SYSTEMS, INC." AS RECEIVED AND FILED IN THIS OFFICE.

      THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED:

      CERTIFICATE OF INCORPORATION, FILED THE TWENTY-FOURTH DAY OF APRIL, A.D.
1985, AT 10 O'CLOCK A.M.

                                     [SEAL]


                                        /s/ Edward J. Freel
                                        ----------------------------------------
                                        Edward J. Freel, Secretary of State

2060254 8100H                           AUTHENTICATION:    0056845

991461086                                         DATE:    11-01-99


                                                                     FILED
                                                               APR 24 1985 10AM

                                                                /s/ [ILLEGIBLE]
                                                              SECRETARY OF STATE

                          CERTIFICATE OF INCORPORATION

                                       OF

                      RELOCATION MANAGEMENT SYSTEMS, INC.

                                   * * * * *

            1. The name at the corporation is

            RELOCATION MANAGEMENT SYSTEMS, INC.

            2. The address of its registered office in the State of Delaware is
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle. The name of its registered agent at such address is The
Corporation Trust Company.

            3. The nature of the business or purposes to be conducted or
promoted is:

            To develop and market general business systems, applications,
hardware and software.

            To engage in any lawful act or activity for which corporations may
be organized under the General Corporation Law of Delaware.

            4. The total number of shares of stock which the corporation shall
have authority to issue is One Thousand (1,000) and the par value of each of
such shares is One Dollar ($1.00) amounting in the aggregate to One Thousand
Dollars ($1,000.00).

            The designations and the powers, preferences and rights, and the
qualifications, limitations or restrictions thereof are as follows:


            Unless expressly conferred by the terms of this Certificate of
Incorporation, as amended from time to time, or by the terms of a valid
agreement to which the Corporation is a party, or by the terms of the securities
issued by the Corporation, no holder of stock, or of rights or options to
purchase stock, or of other securities or obligations of the Corporation of any
class convertible into stock, of the Corporation of any class shall, as such,
have any preemptive or preferential right of subscription to any shares of
stock, or rights or options to purchase stock, of the corporation of any class,
whether now or hereafter authorized, or to any obligations convertible into
stock, or into rights or options to purchase stock, of the Corporation
(including any notes, bonds or other evidences of indebtedness to which are
attached any stock of the Corporation) issued or sold or any right of
subscription to any thereof other than such, if any, as the Board of Directors
in its discretion may from time time fix pursuant to the authority conferred by
this Certificate of incorporation. Shares of stock rights or options to purchase
stock, or obligations convertible into stock or into rights or options to
purchase stock, of the Corporation, may from time to time be issued and sold to
such parties, whether stockholders or others (and if issued and sold to any one
or more stockholders, then they may be so sold without reference to any other
holder or holders of shares of the same or any different class of stock and
without reference to whether such stockholders are holders of stock having
limited or unlimited dividend or voting rights), all as the Board of Directors
in its sole discretion may determine.


            5A. The name and mailing address of each incorporator is as follows:

            NAME              MAILING ADDRESS
            ----              ---------------

      W.J. Reif         Corporation Trust Center
                        1209 Orange Street
                        Wilmington, Delaware 19801

      V.A. Brookens     Corporation Trust Center
                        1209 Orange Street
                        Wilmington, Delaware 19801

      J.L. Austin       Corporation Trust Center
                        1209 Orange Street
                        Wilmington, Delaware 19801

            5B. The name and mailing address of each person, who is to serve as
a director until the first annual meeting of the stockholders or until a
successor is elected and qualified, is as follows:

            NAME              MAILING ADDRESS
            ----              ---------------

      Kenneth W. Maxfield     P.0. Box 988
                              Fort Wayne, Indiana 46801

      Martin A. Weissert      P.0. Box 988
                              Fort Wayne, Indiana 46801

      James L. Longbons       P.0. Box 988
                              Fort Wayne, Indiana 46801

            6. The corporation is to have perpetual existence.

            7. In furtherance and not in limitation of the powers conferred by
statute, the board of directors is expressly authorized:

            To make, alter or repeal the by-laws of the corporation.

            To authorize and cause to be executed mortgages and liens upon the
real and personal property of the corporation.


            To set apart out of any of the funds of the corporation available
for dividends a reserve or reserves for any proper purpose and to abolish any
such reserve in the manner in which it was created.

            By a majority of the whole board, to designate one or more
committees, each committee to consist of one or more of the directors of the
corporation. The board may designate one or more directors as alternate members
of any committee, who may replace any absent or disqualified member at any
meeting of the committee. The by-laws may provide that in the absence or
disqualification of a member of a committee, the member or members thereof
present at any meeting and not disqualified from voting, whether or not he or
they constitute a quorum, may unanimously appoint another member of the board of
directors to act at the meeting in the place of any such absent or disqualified
member. Any such committee, to the extent provided in the resolution of the
board of directors, or in the by-laws of the corporation, shall have and may
exercise all the powers and authority of the board of directors in the
management of the business and affairs of the corporation, and may authorize the
seal of the corporation to be affixed to all papers which may require it; but no
such committee shall have the power or authority in reference to amending the
certificate of incorporation, adopting an agreement of merger or consolidation,
recommending to the stockholders the sale, lease or exchange of all or
substantially all of the corporation's property and assets, recommending to the
stockholders a dissolution of the corporation or a revocation of a dissolution,
or amending the by-laws of the corporation; and, unless the resolution or
by-law, expressly so provide, no


such committee shall have the power or authority to declare a dividend or to
authorize the issuance of stock.

            When and as authorized by the stockholders in accordance with
statute, to sell, lease or exchange all or substantially all of the property and
assets of the corporation, including its good will and its corporate franchises,
upon such terms and conditions and for such consideration, which may consist in
whole or in part of money or property including shares of stock in, and/or other
securities of, any other corporation or corporations, as its board of directors
shall deem expedient and for the best interests of the corporation.

            8. Elections of directors need not be by written ballot unless the
by-laws of the corporation shall so provide.

            Meetings of stockholders may be held within or without the State of
Delaware, as the by-laws may provide. The books of the corporation may be kept
(subject to any provision contained in the statutes) outside the State of
Delaware at such place or places as may be designated from time to time by the
board of directors or in the by-laws of the corporation.

            9. The following provisions are inserted for the management of the
business and for the conduct of the affairs of the Corporation and for defining
and regulating the powers of the Corporation and its directors and stockholders
and are in furtherance and not in limitation of the powers conferred upon the
corporation by statute:

                  (a) The by-laws of the Corporation may fix and alter, or
            provide the manner for


            fixing and altering, the number of directors constituting the whole
            Board, provided that such number shall always be not less than
            three. In case of any increase in the number of directors
            constituting the whole Board, the additional directors shall be
            chosen by the directors or by the stockholders at the time having
            voting power, as may be prescribed in said by-laws. Directors need
            not be stockholders of the Corporation, and Directors chosen by the
            incorporators or the stockholders, or chosen by majority of the
            remaining directors to fill vacancies in the Board of Directors,
            including vacancies resulting from an increase in the number of
            directors constituting the whole Board, need not be chosen by
            ballot.

                  (b) The Board of Directors may by resolution or resolutions,
            passed by a majority of the whole Board, designate one or more
            committees, each committee to consist of two or more of the
            directors of the Corporation, which, to the extent provided in said
            resolution or resolutions or in the by-laws of the Corporation,
            shall have and may exercise the powers of the Board in the
            management of the business and affairs of the Corporation and may
            have power to authorize the seal of the Corporation to be affixed to
            all papers which may require it. Such committee or committees shall
            have such name or names as may be stated in said by-laws or


            as may be determined from time to time by resolution adopted by the
            Board.

                  (c) Except as otherwise provided in the by-laws, the Board of
            Directors may from time to time by resolution or resolutions adopted
            by a majority of the whole Board

                        (1) fix the fees, salaries or other compensation or
                  amounts to be paid to the members of any committee designated
                  pursuant to paragraph (b) above; and

                        (2) authorize the payment of fees for attendance at
                  meetings of the Board and all salaries or other compensation
                  or amounts to all or any of the members of the Board, as such,
                  in such amount or amounts, and payable in a lump sum or in
                  such installments and at such times as the Board shall
                  determine as aforesaid, which salaries or other compensation
                  or amounts may be in addition to any amounts payable to such
                  member or members for attendance at meetings of the Board, and
                  in addition to any fees, salaries or other compensation or
                  amounts which may be paid or payable to such member or members
                  as a member of any committee or as an officer of the
                  Corporation, or in any other capacity; and anything in
                  paragraph (d) below in, or in any other provision of, this
                  article to the contrary notwithstanding, any resolution
                  adopted by a majority of the whole Board


                  as aforesaid shall be valid for all purposes whether or not
                  any one or more directors affected, or intended to be affected
                  thereby, may be included in such majority or vote or may vote
                  for such resolution or may be a member of any such committee
                  or may receive any such fees, salaries, compensation or other
                  amounts and whether or not the presence of such director or
                  directors at any meeting at which such resolution is so passed
                  is or was necessary to constitute a quorum thereat.

                  (d) The Board of Directors shall have the power and authority:

                        (1) to make, alter or repeal, or to adopt new, by-laws
                  of the Corporation, except as otherwise provided in a by-law
                  adopted by the stockholders entitled to vote; but by-laws so
                  made, altered or adopted by the directors may be altered or
                  repealed by such stockholders;

                        (2) to the full extent permitted or not prohibited by
                  law, to determine the use and disposition of any surplus or
                  net profits:

                        (3) from time to time to set apart out of any assets of
                  the Corporation otherwise available for dividends a reserve or
                  reserves as working capital or for any other proper purpose of
                  purposes, and to reduce, abolish or add to any such


                  reserve or reserves from time to time as said Board may deem
                  to be in the interests of the Corporation; and the board shall
                  likewise have power to determine in its discretion what part
                  of the assets of the Corporation available for dividends in
                  excess of such reserve or reserves shall be declared in
                  dividends and paid to the stockholders of the corporation;

                        (4) from time to time determine to what extent and at
                  what times and places and under what conditions and
                  regulations the accounts, books and records of the
                  Corporation, or any of them, shall be open to the inspection
                  of the stockholders; and no stockholder shall have any right
                  to inspect any account or book or document of the Corporation,
                  except as conferred by the laws of the State of Delaware,
                  unless and until authorized so to do by resolution of the
                  Board or of the stockholders of the Corporation;

                        (5) from time to time to fix the compensation or
                  additional compensation or other remuneration to be paid to
                  any of the directors, officers, agents or employees (including
                  directors and officers of the Corporation or of any entities
                  in which or in the welfare of which the corporation has an
                  interest, and those actively engaged in the conduct of the
                  Corporation's business or the


                  business of its subsidiary or affiliated entities) for
                  services rendered, or to be rendered, and to adopt any plan or
                  other arrangement that it may deem advisable for determing the
                  amounts of such compensation, additional compensation or other
                  remuneration, including, without limiting the generality of
                  the foregoing, any plan or arrangement under which all or a
                  part of the amounts so payable may be dependent upon the
                  amount of the gross or net income, earnings or profits
                  (consolidated or otherwise) of the Corporation, and/or any one
                  or more of its subsidiaries or affiliates, upon such terms and
                  conditions and the Board may fix;

                        (6) to the full extent permitted or not prohibited by
                  law, and without the consent of or other action by the
                  stockholders, to authorize or create mortgages, pledges or
                  other liens or encumbrances upon any or all of the assets,
                  real, personal or mixed, and franchises of the Corporation,
                  including after-acquired property, and to exercise all of the
                  powers of the Corporation in connection therewith; and

                        (7) in addition to the power and authority hereinbefore
                  and by statue conferred upon it, to exercise all such powers
                  and do all much acts and things as may be exercised or done by
                  the


                  Corporation, subject nevertheless to the provisions of the
                  laws of the State of Delaware, of this Certificate and of the
                  by-laws of the Corporation, as the same may from time to time
                  be amended.

                  (e) Any director or officer may be removed at any time, with
            or without cause, by the affirmative vote, at any stockholders'
            meeting, of the holders of a majority of the outstanding stock of
            the Corporation entitled to vote thereat, or by such other vote and
            in such other manner, with or without any stockholders' meeting, as
            may be provided in the by-laws of the Corporation.

                  (f) Whenever a compromise or arrangement is proposed between
            this Corporation and its creditors or any class of them and/or
            between this Corporation and its stockholders or any class of them,
            any court or equitable jurisdiction within the State of Delaware
            may, on the application in a summary way of this Corporation or of
            any creditor or stockholder thereof, or on the application of any
            receiver or receivers appointed for this Corporation under the
            provisions of section 291 of Title 8 of the Delaware Code or on the
            application of trustees in dissolution or of any receiver or
            receivers appointed for this Corporation under the provisions of
            section 279 of Title 8 of the Delaware Code order a meeting of the
            creditors or class of creditors, and/or of the stockholders or
            class of


            stockholders of this Corporation, as the case may be, to be summoned
            in such manner as the said court directs. If a majority in number
            representing three-fourths in value of the creditors or class of
            creditors, and/or of the stockholders or class of stockholders of
            this Corporation, as the case may be, agree to any compromise or
            arrangement and to any reorganization of this Corporation as a
            consequence of such compromise or arrangement, the said compromise
            or arrangement and the said reorganization shall, if sanctioned by
            the court to which the said application has been made, be binding on
            all the creditors or class of creditors, and/or on all the
            stockholders or class of stockholders, of this Corporation, as the
            case may be, and also on this Corporation.

                  (g) At every meeting of the stockholders of the Corporation,
            each stockholder entitled to vote thereat may cast one vote in
            person or by proxy for each share of stock held by such stockholder.

                  (h) When and as authorized by the affirmative vote of the
            holders of a majority of the stock issued and outstanding having
            voting power given at a stockholders' meeting duly called for that
            purpose, or at the next annual meeting of the stockholders, provided
            the notice of the said annual meeting contains a notice of the
            proposed sale, lease or exchange or when authorized by the written


            consent of the holders of a majority of the voting stock issued and
            outstanding, the Board of directors shall have power and authority
            to sell, lease or exchange all of the property and assets of the
            Corporation, including its good will and its corporate franchises,
            upon such terms and conditions and for such consideration, which may
            be in whole or in part shares of stock in, and/or other securities
            of, any other corporation or corporations, as the Board of Directors
            shall deem expedient and for the best interests of the Corporation.

                  (i) A director of the Corporation shall not, in the absence of
            fraud, be disqualified by his office from dealing or contracting
            with the corporation either as a vendor, purchaser or otherwise,
            nor, in the absence of fraud, shall any transaction or contract of
            the Corporation be void or voidable or affected by reason of the
            fact that any director, or any firm of which any director is a
            member, or any corporation of which any director is an officer,
            director or stockholder, is in any way interested in such
            transaction or contract; provided that at the meeting of the Board
            of Directors or of a committee thereof having authority in the
            premises, authorizing or confirming said contract or transaction,
            the existence of an interest of such director, firm or corporation
            is disclosed or is known and there


            shall be present a quorum of the Board or of directors constituting
            such committee, and such contract or transaction shall be approved
            by a majority of such quorum, which majority shall consist of
            directors not so interest or connected. A general notice spread upon
            the minutes of a meeting of the Board or of any committee thereof
            that a director is a member of any firm or an officer, director or
            stockholder of any corporation, and is to be regarded as interested
            in any subsequent transaction with such firm or corporation, shall
            be a sufficient disclosure under the foregoing provision, and after
            such general notice it shall not be necessary to give any special
            notice relating to any practical transaction with such firm or
            corporation. Nor shall any director, nor any firm of which any
            director is a member, nor any corporation of which any director is
            an officer, director of stockholder, be liable to account to the
            Corporation for any profit realized from or through any such
            transaction or contract of the corporation authorized, confirmed or
            approved as aforesaid by reason of the fact that such director or
            any firm of which he is a member, or any corporation of which he is
            a stockholder, director or officer, was interested in such
            transaction or contract. Directors so interested may be counted when
            present at meetings of the Board of Directors


            or of such committee for the purpose of determing the existence of a
            quorum. Any contract, transaction or act of the Corporation or of
            the Board of Directors or of any committee hereof (whether or not
            authorized, confirmed or approved as hereinbefore provided) which
            shall be ratified by a majority in interest of the holders of the
            capital stock entitled to vote, at any annual meeting, or any
            special meeting called for such purpose, shall be as valid and as
            binding as though ratified by every stockholder of the Corporation.
            Any director of the Corporation may be counted in determining the
            existence of a quorum at a meeting to consider any contract or
            transaction between the Corporation and any subsidiary, parent or
            other affiliated corporation of which he is also a director or
            officer and may vote upon any such contract or transaction, which
            shall not be invalid or otherwise affected by reason of his presence
            or his vote.

                  (j) Except as otherwise provided in the by-laws, the
            stockholders of the Corporation and the Board of Directors or any
            committee thereof may hold their meetings and have an office or
            offices outside of the State of Delaware, and, subject to the
            provisions of the laws of said state, may keep the books of the
            Corporation outside of said State at such places as may, from time
            to time, be designated by the Board of Directors.


                  (k) Nothing contained in this Certificate shall be deemed to
            prohibit or restrict in any way the taking of any action by the
            Board of Directors of the Corporation or any committee of the Board
            without a meeting, pursuant to written consent, as and to the extent
            permitted by the General Corporation Law of the State of Delaware,
            as from time to time amended.

                  (1) The by-laws may contain provisions, in addition to those
            herein set forth, relating to the management of the business of the
            Corporation and the conduct of its affairs and further defining,
            limiting and regulating the powers of the directors and of the
            stockholders.

            10. The Corporation reserves the right to amend the provision
contained in this Certificate an in any certificate amendatory hereof in the
manner now or hereafter prescribed by law, and all rights conferred on
stockholders or other hereunder or thereunder are granted subject to such
reservations.

            WE, THE UNDERSIGNED, being each of the incorporators hereinbefore
named, for the purpose of forming a corporation pursuant to the General
Corporation Law of the State of Delaware, do make this certificate, hereby
declaring and certifying that this is our act and deed and the facts herein
stated are true, and accordingly have hereunto set our hands this 24th day of
April, 1985


                                                     /s/ W.J. Reif
                                                     -----------------
                                                     W.J. Reif


                                                     /s/ V.A. Brookens
                                                     -----------------
                                                     V.A. Brookens


                                                     /s/ J.L. Austin
                                                     -----------------
                                                     J.L. Austin