Document:

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                                                                     EXHIBIT 4.1

                            JDA SOFTWARE GROUP, INC.

                          REGISTRATION RIGHTS AGREEMENT

                                SEPTEMBER 7, 2001
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                          REGISTRATION RIGHTS AGREEMENT

      THIS REGISTRATION RIGHTS AGREEMENT is entered into as of September 7, 2001
(this "AGREEMENT"), by and among JDA Software Group, Inc., a Delaware
corporation (the "JDA"), and the holders of JDA's Common Stock (the "HOLDERS")
listed on Exhibit A attached hereto.

                                 R E C I T A L S

      WHEREAS, the Holders are receiving shares of Common Stock pursuant to the
Agreement and Plan of Reorganization dated September 7, 2001 (the "MERGER
AGREEMENT"), by and among JDA, E3 Acquisition Corp., E3 and certain stockholders
of E3.

      WHEREAS, JDA has agreed to enter into this Agreement with the Holders as a
condition to closing of the Merger Agreement.

      NOW, THEREFORE, in consideration of the mutual promises contained herein,
and other consideration, the receipt and sufficiency of which hereby is
acknowledged, the parties hereto agree as follows:

      1.    CERTAIN DEFINITIONS. As used in this Agreement, the following terms
shall have the following respective meanings:

            1.1.  "COMMON STOCK" shall mean the Common Stock, $0.01 par value,
of JDA.

            1.2.  "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934,
as amended, and the rules and regulations of the SEC promulgated thereunder, all
as the same shall be in effect at that time.

            1.3.  "INITIATING HOLDERS" means the Holders who, in the case of the
demand registration under Section 4, are the holders of more than fifty percent
(50%) of the Registrable Securities.

            1.4.  "PIGGYBACK RIGHTS" means those rights provided to the Holders
pursuant to Section 3.1 of this Agreement.

            1.5.  The terms "REGISTER", "REGISTERED" and "REGISTRATION" refer to
a registration effected by preparing and filing a registration statement in
compliance with the Securities Act (as defined below), and the declaration or
ordering of the effectiveness of such registration statement.

            1.6.  "REGISTRABLE SECURITIES" means the 1,600,085 shares of Common
Stock received by the Holders pursuant to the Merger Agreement; provided,
however, that the Common Stock shall only be treated as Registrable Securities
if and for so long as, they have not been (A) sold to or through a broker or
dealer or underwriter in a public distribution or a public securities
transaction, (B) sold in a transaction exempt from the registration and
prospectus delivery requirements of the Securities Act under Section 4(1)
thereof so that all transfer
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restrictions and restrictive legends with respect thereto are removed upon the
consummation of such sale, or (C) transferred in a transaction whereby the
registration rights granted herein are not assigned.

            1.7.  "REGISTRATION EXPENSES" shall mean all expenses (excluding
underwriting discounts and selling commissions and any costs or expenses of any
counsel retained by Holders) incurred in connection with a registration under
Sections 3 and 4 hereof, including, without limitation, all registration and
filing fees, printing expenses, fees and disbursements of counsel for JDA, and
blue sky fees and expenses.

            1.8.  "SECURITIES ACT" shall mean the Securities Act of 1933, as
amended, and the rules and regulations of the SEC promulgated thereunder, all as
the same shall be in effect at the time.

            1.9.  "SEC" shall mean the Securities and Exchange Commission or any
other federal agency at the time administering the Securities Act.

      2.    RESTRICTIVE LEGEND. Each certificate representing Registrable
Securities shall (unless otherwise permitted or unless the securities evidenced
by such certificate shall have been registered under the Securities Act) be
stamped or otherwise imprinted with a legend substantially in the following form
(in addition to any legend required under applicable state securities laws):

      THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED FOR
      INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
      AS AMENDED (THE "ACT"), OR ANY STATE SECURITIES LAWS. SUCH SHARES MAY NOT
      BE SOLD OR OFFERED FOR SALE IN THE ABSENCE OF SUCH REGISTRATION OR AN
      OPINION OF COUNSEL SATISFACTORY TO THE COMPANY AND ITS COUNSEL THAT SUCH
      REGISTRATION IS NOT REQUIRED UNDER THE ACT. COPIES OF THE AGREEMENT
      COVERING THE PURCHASE OF THESE SHARES AND RESTRICTING THEIR TRANSFER MAY
      BE OBTAINED AT NO COST BY WRITTEN REQUEST MADE BY THE HOLDER OF RECORD OF
      THIS CERTIFICATE TO THE SECRETARY OF THE COMPANY AT THE PRINCIPAL
      EXECUTIVE OFFICE OF THE COMPANY.

            Upon request of a holder of such a certificate, JDA shall remove the
foregoing legend from the certificate or issue to such holder a new certificate
therefor free of any transfer legend, if, with such request, JDA shall have
received either (i) a written opinion of legal counsel to the holder who shall
be reasonably satisfactory to JDA, addressed to JDA and reasonably satisfactory
in form and substance to JDA's counsel, to the effect that the proposed transfer
of the Registrable Securities may be effected without registration under the
Securities Act and that future transfers will not require such registration or
(ii) a "no-action" letter from the SEC to the effect that the distribution of
such securities and any subsequent transfer without registration will not result
in a recommendation by the staff of the SEC that action be taken with respect
thereto, unless any such transfer legend may be removed (a) for routine sales
under Rule 144,

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(b) pursuant to Rule 144(k), and (c) for distributions by partnerships and
limited liability companies, in which case no such legal opinion or "no-action"
letter shall be required.

      3.    PIGGYBACK REGISTRATION.

            3.1.  If, at any time prior to the termination of the rights under
this Agreement, JDA shall determine to register any of its securities either for
its own account or for the account of a security holder or holders exercising
their respective demand registration rights, other than a registration relating
solely to employee benefit plans or a registration relating solely to a SEC Rule
145 transaction or a registration on any registration form which does not permit
secondary sales or does not include substantially the same information as would
be required to be included in a registration statement covering the sale of
Registrable Securities, JDA will:

                  (a)   promptly give to each Holder written notice thereof; and

                  (b)   include in such registration, and in any underwriting
involved therein, all of the Registrable Securities specified in a written
request or requests made by any Holder within fifteen (15) days after receipt of
the written notice from JDA described in clause (a) above, except as set forth
in Section 3.2 below. Such written request may specify all or a part of a
holder's Registrable Securities.

            3.2.  Underwriting. If the registration for which JDA gives notice
is for a registered public offering involving an underwriting, JDA shall so
advise the Holders as a part of the written notice given pursuant to Section
3.1. In such event the right of any Holder to registration pursuant to Section 3
shall be conditioned upon such Holder's participation in such underwriting and
the inclusion of such Holder's Registrable Securities in the underwriting to the
extent provided herein. All Holders proposing to distribute their securities
through such underwriting shall (together with JDA and the other stockholders
distributing their securities through such underwriting) enter into an
underwriting agreement in customary form with a nationally recognized
underwriter selected for underwriting by JDA (the "UNDERWRITER").
Notwithstanding any other provision of this Section 3, if the Underwriter
determines that marketing factors require a limitation on the number of shares
to be underwritten, the Underwriter may (subject to the allocation priority set
forth below) exclude from such registration and underwriting all or a portion of
the Registrable Securities. JDA shall so advise all holders of securities
requesting registration, and the number of shares of securities that are
entitled to be included in the registration and underwriting by persons other
than JDA shall be allocated in the following priority: first, among all Holders
in proportion, as nearly as practicable, to the respective amounts of securities
which they had requested to be included in such registration at the time of
filing the registration statement, and second, among persons not contractually
entitled to registration rights under this Agreement. If any Holder disapproves
of the terms of any such underwriting, such Holder may elect to withdraw
therefrom by written notice to JDA and the Underwriter. Any Registrable
Securities excluded or withdrawn from such underwriting shall be withdrawn from
such registration.

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      4.    DEMAND REGISTRATION.

            4.1.  Request for Registration. If JDA shall receive from the
Initiating Holders, at any time following expiration of the three (3) month
period immediately following the date of this Agreement, a written request that
JDA effect a registration of the Registrable Securities, JDA will:

                  (a)   within fifteen (15) days of receipt thereof, give
written notice of the proposed registration to all other Holders (a "DEMAND
NOTICE"); and

                  (b)   as soon as practicable, use its best efforts to effect
such registration on Form S-3 (including, without limitation, the execution of
an undertaking to file post effective amendments, appropriate qualification
under applicable blue sky or other state securities laws and appropriate
compliance with applicable regulations issued under the Securities Act) as may
be so requested and as would permit or facilitate the sale and distribution of a
portion of the Registrable Securities as are specified by the Initiating Holders
in such request and by any Holders joining in such request in a written request
delivered to JDA within twenty (20) days after the date of the Demand Notice;
provided, however, that JDA shall not be required to register more than fifty
percent (50%) of the total number of Registrable Securities. If the number of
Registrable Securities requested to be registered exceeds fifty percent (50%) of
the total number of Registrable Securities, then the number of shares of
Registrable Securities each Holder is entitled to register shall be determined
pro-rata based upon such Holder's ownership of Registrable Securities. In any
event, JDA shall not be obligated to effect, or to take any action to effect,
any such registration pursuant to this Section 4:

                        (i)   In any particular jurisdiction in which JDA would
be required to execute a general consent to service of process in effecting such
registration, qualification or compliance, unless JDA is already subject to
service in such jurisdiction and except as may be required by the Securities
Act;

                        (ii)  If JDA has effected a prior registration pursuant
to this Section 4.1 and such registration has been declared or ordered effective
and the sale of such Registrable Securities has closed;

                        (iii) If JDA has effected a prior effective registration
within one hundred eighty (180) days of the Initiating Holder's request (other
than a registration effected solely to qualify an employee benefit plan or to
effect a business combination pursuant to Rule 145); or

                        (iv)  If the registration requested would have an
aggregate disposition price (after deduction of underwriting discounts and
expenses of sale) of less than $500,000.

            Subject to the foregoing clauses (i), (ii), (iii) and (iv), JDA
shall file a registration statement covering the Registrable Securities so
requested to be registered as soon as practicable, after receipt of the request
or requests of the Initiating Holders and joining Holders; provided, however,
that if JDA shall furnish to such Initiating Holders and joining Holders a
certificate signed by the President or CEO of JDA stating that in the good faith
judgment of the Board of

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Directors of JDA, it would be significantly detrimental to JDA and its
stockholders for such registration statement to be filed on or before the time
filing would be required and it is therefore essential to defer the filing of
such registration statement, JDA shall have the right to defer such filing for a
period of not more than ninety (90) days after receipt of the request of the
Initiating Holders and joining Holders. JDA shall file such registration
statement on Form S-3 to the extent that JDA is eligible to use Form S-3 for
such registration.

      5.    EXPENSES OF REGISTRATION; REGISTRATION PROCEDURE.

            5.1.  Expenses of Registration. JDA shall pay all Registration
Expenses incurred in connection with any demand registration on Form S-3
pursuant to Section 4 and all Piggyback Registrations pursuant to Section 3,
provided, however, that JDA shall not be required to pay any Registration
Expenses if, as a result of the withdrawal of a request for registration by
Initiating Holders, the registration statement does not become effective, unless
such withdrawal is caused by a material adverse change in the business or
operations of JDA and such material adverse change was not known to the
Initiating Holders at the time of the request, or unless the Initiating Holders
agree to have such registration considered a registration for the purposes of
Section 4.1(b)(ii). If JDA is not required to pay any Registration Expenses,
then the Holders seeking to participate in such registration shall bear such
Registration Expenses pro rata on the basis of the number of their shares
included in the registration request, and such registration shall not be
considered a registration for purposes of Section 4.1(b)(ii).

            5.2.  Registration Procedure. In the case of each registration
effected by JDA pursuant to Sections 3 or 4, JDA will keep each Holder advised
in writing as to the initiation of each registration and as to the completion
thereof. At its expense, JDA will:

                  (a)   Maintain and keep such registration effective or current
for a period of one hundred eighty (180) days or until the Holders have
completed the distribution described in the registration statement relating
thereto, whichever first occurs; provided, however, that (i) such one hundred
eighty (180) day period shall be extended for a period of time equal to the
period the Holders refrain from selling any securities included in such
registration at the request of an underwriter of Common Stock (or other
securities) of JDA; and (ii) in the case of any registration of Registrable
Securities on Form S-3 which are intended to be offered on a continuous or
delayed basis, such one hundred eighty (180) day period shall be extended, if
necessary, to keep the registration statement effective until all such
Registrable Securities are sold, however, in no event longer than one (1) year
from the effective date of the registration statement and provided that Rule
145, or any successor rule under the Securities Act governing the obligation to
file a post-effective amendment permit, in lieu of filing a post-effective
amendment that (I) includes any prospectus required by Section 10(a)(3) of the
Securities Act or (II) reflects facts or events representing a material or
fundamental change in the information set forth in the registration statement,
the incorporation by reference of information required to be included in (I) or
(II) above to be contained in periodic reports filed pursuant to Section 13 or
15(d) of the Exchange Act in the registration statement;

                  (b)   Prepare and file with the SEC such amendments and
supplements to such registration statement and the prospectuses used in
connection with such registration

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statement as may be necessary to comply with the provisions of the Securities
Act with respect to the disposition of all securities covered by such
registration statement;

                  (c)   Furnish such number of prospectuses and other documents
incident thereto, including any amendment of or supplement to the prospectus, as
a Holder from time to time may reasonably request;

                  (d)   Notify such seller of Registrable Securities covered by
such registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event
as a result of which the prospectus included in such registration statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading or incomplete in the light of the
circumstances then existing, and at the request of any such seller, prepare and
furnish to such seller a reasonable number of copies of a supplement to or an
amendment of such prospectus as may be necessary so that, as thereafter
delivered to the purchasers of such shares, such prospectus shall not include an
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements therein not misleading or
incomplete in light of the circumstances then existing;

                  (e)   Cause all such Registrable Securities registered
pursuant hereunder to be listed on each securities exchange on which similar
securities issued by JDA are then listed;

                  (f)   Provide a transfer agent and registrar for all
Registrable Securities registered pursuant to such registration statement and a
CUSIP number for all such Registrable Securities, in each case not later than
the effective date of such registration; and

                  (g)   Use its commercially reasonable efforts to take all
other steps necessary or appropriate to effect the registration of the
Registrable Securities contemplated hereby.

      6.    INDEMNIFICATION.

            6.1.  To the extent permitted by law, JDA will indemnify each
Holder, if Registrable Securities held by such Holder are included in the
securities with respect to which registration, qualification or compliance has
been effected pursuant to this Agreement, and each underwriter, if any, and each
person who controls any underwriter within the meaning of Section 15 of the
Securities Act, against all claims, losses, damages and liabilities (or actions
in respect thereof) arising out of or based on any untrue statement (or alleged
untrue statement) of a material fact contained in any prospectus, offering
circular or other document (including any related registration statement)
incident to any such registration, qualification or compliance, or based on any
omission (or alleged omission) to state therein a material fact required to be
stated therein or necessary to make the statements therein, in light of the
circumstances in which they were made, not misleading, or any violation by JDA
of the Securities Act including any rule or regulation thereunder applicable to
JDA relating to action or inaction required of JDA in connection with any such
registration, qualification or compliance, and will reimburse each such Holder,
each of its officers, directors and partners, and each person controlling such
Holder, each

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such underwriter and each person who controls any such underwriter, for any
legal and any other expenses reasonably incurred in connection with
investigating and defending any such claim, loss, damage, liability or action,
provided that JDA will not be liable in any such case to the extent that any
such claim, loss, damage, liability or expense arises out of or is based on any
untrue statement (or alleged untrue statement) or omission (or alleged omission)
based upon information furnished to JDA specifically for inclusion therein by
such Holder, each of its officers, directors and partners, and each person
controlling such Holder or underwriter and each person who controls any such.

            6.2.  Each Holder will, if Registrable Securities or other
securities held by such Holder are included in the securities as to which such
registration, qualification or compliance is being effected, indemnify JDA, each
of its directors, officers and agents and each underwriter, if any, of JDA's
securities covered by such a registration statement, each person who controls
JDA or such underwriter within the meaning of Section 15 of the Securities Act,
each other such Holder and each of their officers, directors and partners, and
each person controlling such Holder within the meaning of Section 15 of the
Securities Act, against all claims, losses, damages and liabilities (or actions
in respect thereof) arising out of or based on any untrue statement (or alleged
untrue statement) of a material fact contained in any such registration
statement, prospectus, offering circular or other document, or any omission (or
alleged omission) to state therein a material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances in
which they were made, not misleading, and will reimburse JDA and such Holders,
directors, officers, agents, partners, persons, underwriters or control persons
for any legal or any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability or action, in
each case to the extent, but only to the extent, that such untrue statement (or
alleged untrue statement) or omission (or alleged omission) is made in such
registration statement, prospectus, offering circular or other document in
reliance upon and in conformity with information furnished to JDA specifically
for inclusion therein by such Holder. In no event shall the aggregate liability
of a Holder for indemnification under this Section 6 exceed the gross proceeds
received by such Holder from the sale of shares in such offering.

            6.3.  Each party entitled to indemnification under this Section 6
(the "INDEMNIFIED PARTY") shall give notice to the party required to provide
indemnification (the "INDEMNIFYING PARTY") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought and shall
permit the Indemnifying Party to assume the defense of any such claim or any
litigation resulting therefrom, provided that counsel for the Indemnifying
Party, who shall conduct the defense of such claim or any litigation resulting
therefrom, shall be approved by the Indemnified Party (whose approval shall not
unreasonably be withheld), and the Indemnified Party may participate in such
defense at such party's expense, and provided further that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying Party of its obligations under this Agreement, except to the extent
that the Indemnified Party is prejudiced thereby. Each Indemnified Party shall
furnish such information regarding itself or the claim in question as an
Indemnifying Party may reasonably request and as shall be reasonably required in
connection with defense of such claim and litigation resulting therefrom. An
Indemnified Party shall have the right to retain its own counsel, with the fees
and expenses to be paid by the Indemnifying Party, if representation of such
Indemnified Party by the counsel retained by the Indemnifying Party would be

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inappropriate due to actual or potential conflicts of interest between such
Indemnified Party and any other party represented by such counsel in such
proceeding, provided that in no event shall the Indemnifying Party be required
to pay the fees and expenses of more than one such separate counsel for all
Indemnified Parties.

            6.4.  If the indemnification provided for in this Section 6 is held
by a court of competent jurisdiction to be unavailable to an Indemnified Party
with respect to any losses, claims, damages or liabilities referred to herein,
the Indemnifying Party, in lieu of indemnifying such Indemnified Party
thereunder, shall to the extent permitted by applicable law contribute to the
amount paid or payable by such Indemnified Party as the result of such loss,
claim, damage or liability in such proportion as is appropriate to reflect the
relative fault of the Indemnifying Party on the one hand and of the Indemnified
Party on the other in connection with the allegation(s) that resulted in such
loss, claim, damage or liability, as well as any other relevant equitable
considerations. The relative fault of the Indemnifying Party and of the
Indemnified Party shall be determined by a court of law by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact
or the omission to state a material fact relates to information supplied by the
Indemnifying Party or by the Indemnified Party and the parties' relevant intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission; provided, that in no event shall any contribution by a
Holder hereunder exceed the gross proceeds from the sale of shares in the
offering received by such Holder.

            6.5.  The obligations of JDA and Holders under this Section 6 shall
survive the completion of any offering of Registrable Securities in a
registration statement and the termination of this Agreement. No Indemnifying
Party, in the defense of any such claim or litigation, shall, except with the
prior written consent of each Indemnified Party (which consent shall not be
unreasonably withheld), consent to the entry of any judgment or enter into any
settlement. Unless waived by the Indemnified Party, all judgments and
settlements must include as an unconditional term thereof the giving by the
claimant or plaintiff to such Indemnified Party of a release from all liability
in respect to such claim or litigation.

      7.    RULE 144 REPORTING. With a view to making available the benefits of
certain rules and regulations of the SEC which may permit the sale of the
Registrable Securities to the public without registration, JDA agrees to:

            7.1.  Make and keep public information available as those terms are
understood and defined in Rule 144 under the Securities Act;

            7.2.  Use its best efforts to file with the SEC in a timely manner
all reports and other documents required of JDA under the Securities Act and the
Exchange Act.

            7.3.  So long as a Holder owns any restricted securities under Rule
144, furnish to the Holder forthwith upon request a written statement by JDA as
to its compliance with the reporting requirements of Rule 144, and of the
Securities Act and the Exchange Act.

      8.    LOCKUP AGREEMENT. In consideration for JDA's obligations under this
Agreement, each Holder of Registrable Securities and each transferee pursuant to
Section 10.1

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hereof agrees, in connection with any registration of JDA's securities with
respect to which the Holders are permitted to include at least fifty percent
(50%) of the Registrable Securities requested to be registered by the Holders,
upon request of JDA or the underwriters managing any underwritten offering of
JDA's securities, that he, she or it shall not, directly or indirectly, sell,
offer to sell (including, without limitation, any short sale), grant any option
to purchase or otherwise transfer or dispose of (other than to donees who agree
to be similarly bound) any Registrable Securities (other than those included in
the registration) without the prior written consent of JDA or such underwriters,
as the case may be, for up to one hundred twenty (120) days from the effective
date of such registration; provided, however, that all persons entitled to
registration rights with respect to shares of Common Stock who are not parties
to this Agreement, all other persons selling shares of Common Stock in such
offering, and all executive officers and directors of the Company shall also
have agreed not to sell publicly their Common Stock under the circumstances and
pursuant to the terms substantially equivalent to those requested of the Holders
pursuant to this Section 8. Each Holder agrees that JDA may instruct its
transfer agent to place stop transfer notations in its records to enforce the
provisions of this Section 8.

      9.    TERMINATION OF RIGHTS. Unless otherwise provided herein, the rights
and provisions of this Agreement shall terminate upon the earlier to occur of
(i) such time as any Holder is able to sell all of his, her or its Registrable
Securities in any ninety (90) day period pursuant to Rule 144 promulgated under
the Securities Act without regard to volume limitations; and (ii) two (2) years
from the date of this Agreement.

      10.   MISCELLANEOUS.

            10.1. Transfer or Assignment of Registration Rights. The rights to
cause JDA to register the Holder's securities granted by JDA under Sections 3
and 4 hereof may be transferred or assigned by the Holder to a transferee or
assignee of any of the Registrable Securities, provided that JDA is given
written notice by such Holder at the time of said transfer or assignment,
stating the name and address of said transferee or assignee and identifying the
securities with respect to which such registration rights are being transferred
or assigned; and provided further that (i) such transferee is a constituent,
partner, affiliate, member, family member of transferor, or a trust or
subsidiary controlled by the transferor, (ii) after giving effect to such
transfer, the transferee holds at least 150,000 shares of Registrable Securities
(appropriately adjusted for recapitalizations, stock combinations, stock splits,
dividends and the like), or (iii) the transferee acquires the Registrable
Securities for no consideration or by gift or devise; and provided further that
the transferee or assignee of such rights is not deemed by the Board of
Directors of JDA, in its reasonable judgment, to be a competitor of JDA; and
provided further that the transferee or assignee of such rights assumes the
obligations of a Holder under this Agreement and, without any further action of
the parties hereto, becomes a Holder under this Agreement.

            10.2. Governing Law. This Agreement shall be governed by and
construed under the laws of the State of Delaware as applied to agreements
entered into solely between residents of and to be performed entirely within
such state.

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            10.3. Counterparts; Facsimiles. This Agreement may be executed in
one or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument. Facsimile copies of
this Agreement shall be deemed originals in all respects.

            10.4. Titles and Subtitles. The titles and subtitles used in this
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

            10.5. Notices. All notices and other communications hereunder shall
be in writing and shall be deemed given when received if delivered personally or
by commercial delivery service (with signature acknowledging receipt), or sent
via facsimile (with confirmation of receipt), or within seventy-two (72) hours
after being mailed by registered or certified mail (return receipt requested),
in each case, to the parties at the following addresses (or at such other
address for a party as shall be specified by like notice):

                  (a)   if to JDA, to:

                        JDA Software Group, Inc.
                        14400 N. 87th Street
                        Scottsdale, Arizona 85260-3649
                        Attention:  James D. Armstrong
                        Fax:  (480) 308-4265
                        Tel:  (480) 308-3014

                        with a copy to:

                        JDA Software Group, Inc.
                        14400 N. 87th Street
                        Scottsdale, Arizona 85260-3649
                        Attention:  Michael Bridge, Esq.
                        Fax:  (480) 308-4268
                        Tel:  (480) 308-3460

                        with a copy to:

                        Gray Cary Ware & Freidenrich LLP
                        1221 South MoPac Expressway, Suite 400
                        Austin, Texas 78746-6875
                        Attention: Paul E. Hurdlow, Esq.
                        Fax:  (512) 457-7020
                        Tel:  (512) 457-7001

                  (b)   if to Holders, to the addresses listed on Exhibit A.

            10.6. Expenses. If any action at law or in equity (including
arbitration) is necessary to enforce or interpret the terms of this Agreement,
the prevailing party shall be

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entitled to reasonable attorneys' fees, expenses and necessary disbursements in
addition to any other relief to which such party may be entitled.

            10.7. Amendments and Waivers. Any term of this Agreement may be
amended with the written consent of the Board of Directors of JDA and the
Holders of at least a majority of the then outstanding Registrable Securities.
Any amendment or waiver effected in accordance with this Section 10.7 shall be
binding upon the Holders, each transferee of the Registrable Securities, each
future holder of all such Registrable Securities, and JDA.

            10.8. Severability. If one or more provisions of this Agreement are
held to be unenforceable under applicable law, portions of such provisions, or
such provisions in their entirety, to the extent necessary, shall be severed
from this Agreement, and the balance of the Agreement shall be interpreted as if
such provision were so excluded and shall be enforceable in accordance with its
terms.

            10.9. Delays or Omissions. No delay or omission to exercise any
right, power or remedy accruing to any party to this Agreement, upon any breach
or default of the other party, shall impair any such right, power or remedy of
such non-breaching party nor shall it be construed to be a waiver of any such
breach or default, or an acquiescence therein, or of any similar breach or
default thereafter occurring; nor shall any waiver of any single breach or
default be deemed a waiver of any other breach or default theretofore or
thereafter occurring. Any waiver, permit, consent or approval of any kind or
character on the part of any party of any breach or default under this
Agreement, or any waiver on the part of any party of any provisions or
conditions of this Agreement, must be made in writing and shall be effective
only to the extent specifically set forth in such writing. All remedies, either
under this Agreement, or by law or otherwise afforded to any Holder, shall be
cumulative and not alternative.

            10.10. Entire Agreement. This Agreement and the documents referred
to herein constitute the entire agreement between the parties hereto pertaining
to the subject matter hereof and any other written or oral agreements between
the parties hereto are expressly canceled.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       11
<PAGE>   13
         IN WITNESS WHEREOF, the parties hereto have executed this Registration
Rights Agreement of the day and year first above written.

                                        COMPANY:

                                        JDA SOFTWARE GROUP, INC.,
                                        a Delaware corporation

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------
                                        Address:
                                                 -------------------------------

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

                                                                           (Fax)
                                                 --------------------------

                 SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT
<PAGE>   14
                                        HOLDERS:

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

                                        Printed Name:
                                                      --------------------------

                 SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT
<PAGE>   15
                                    EXHIBIT A

                                     HOLDERS

Anders H. Herlitz
1010 Seminole Dr.
Apt. 1705
Ft. Lauderdale, Florida 33304

Christina R. Herlitz
1010 Seminole Dr.
Apt. 1705
Ft. Lauderdale, Florida 33304

Carl H. Herlitz
125 Old Blaisdell Road
Sutton, NH 03273

Jan W. Herlitz
1010 Seminole Dr.
Apt. 1705
Ft. Lauderdale, Florida 33304

Frank K. Schuster
9610 Club South Circle, #4110
Sarasota, Florida 34238

William H. Huther
11291 Long Water Chase Ct.
Gulf Harbour Y&CL
Ft. Myers, Florida 33908-4952

Daniel J. Craddock
1208 Fenmore Hall
Powder Springs, Georgia 30127

Kenneth Axelsson
240 Galsworthy Court
Roswell, GA  30075

Bjorn Uttergard
Hagvagen 7
185 32 Vaxholm
Sweden
<PAGE>   16
Ove Andre
TSV  36
S-18134 Lidingo
Sweden

Fitz-Lennart Egnell
Varlavagen 92
S-11522 Stockholm
Sweden

Bjorn Valsinger
6 Loxton Place
Forestville N.S.W. 2087
AustraliaExecuted in 6 Parts
                                             Counterpart No. (   )

                              NATIONAL EQUITY TRUST
                          LOW FIVE PORTFOLIO SERIES 41
                            REFERENCE TRUST AGREEMENT

     This  Reference  Trust  Agreement  dated  ________,  2001 among  Prudential
Investment   Management  Services  LLC,  as  Depositor,   Prudential  Securities
Incorporated,  as Portfolio Supervisor and The Bank of New York, as Trustee sets
forth certain  provisions in full and incorporates other provisions by reference
to the document entitled  "National Equity Trust, Trust Indenture and Agreement"
(the "Basic Agreement") dated February 2, 2000. Such provisions as are set forth
in full herein and such provisions as are incorporated by reference constitute a
single instrument (the "Indenture").

                                WITNESSETH THAT:

     In  consideration  of the  premises  and of the  mutual  agreements  herein
contained, the Depositor and the Trustee agree as follows: Part I.

                     STANDARD TERMS AND CONDITIONS OF TRUST

     Subject to the provisions of Part II hereof,  all the provisions  contained
in the Basic  Agreement are herein  incorporated  by reference in their entirety
and  shall be deemed  to be a part of this  instrument  as fully and to the same
extent as though said provisions had been set forth in full in this instrument.

A.   Article I, entitled "Definitions," shall be amended as follows:

(i)  Section  1.01-Definitions  shall be amended to add the following definition
     at the end thereof:

<PAGE>

                                      -2-

     "Portfolio  Supervisor" of the Trust shall have the meaning  assigned to it
in Part II of the Reference Trust Agreement.

B.   Article  III,  entitled  "Administration  of  Trust,"  shall be  amended as
     follows:

     (i) The third  paragraph of Section  3.05-Distribution  shall be amended by
deleting any reference to Depositor and replacing it with Portfolio Supervisor.

     (ii)  Section  3.14-Deferred  Sales  Charge  shall  be  amended  to add the
following sentences at the end thereof:

"References to Deferred Sales Charge in this Trust Indenture and Agreement shall
include any Creation and  Development  Fee  indicated  in the  prospectus  for a
Trust.  The  Creation  and  Development  Fee  shall be  payable  on each date so
designated  and in an amount  determined  as specified in the  prospectus  for a
Trust."

C.   Article VIII, entitled "Depositor," shall be amended as follows:

     (i) Section 8.07-Compensation shall be amended by deleting any reference to
Depositor and replacing it with Portfolio Supervisor.

D.   Article IX,  entitled  "Additional  Covenants;  Miscellaneous  Provisions,"
     shall be amended as follows:

     (i) The first sentence of Section 9.05 - Written Notice shall be amended by
deleting the language "Prudential Securities  Incorporated at One Seaport Plaza,
New  York,  New  York  10292"  and  replacing  it  with  "Prudential  Investment
Management LLC at 100 Mulberry Street,  Gateway Center Three, Newark, New Jersey
07102".

                                    Part II.

                     SPECIAL TERMS AND CONDITIONS OF TRUST

     The following special terms and conditions are hereby agreed to:

<PAGE>

                                      -3-

A.   The Trust is denominated National Equity Trust, Low Five Portfolio Series
     41.

B.   The Units of the Trust shall be subject to a deferred sales charge.

C.   The publicly traded stocks listed in Schedule A hereto are those which,
     subject to the terms of this Indenture, have been or are to be deposited in
     Trust under this Indenture as of the date hereof.

D.   The term "Depositor" shall mean Prudential  Investment  Management Services
     LLC.

E.   The  term  "Portfolio   Supervisor"   shall  mean   Prudential   Securities
     Incorporated.

F.   The aggregate number of Units referred to in Sections 2.03 and 9.01 of the
      Basic Agreement is          as of the date hereof.

G.   A Unit of the Trust is hereby declared initially equal to 1/     th of the
     Trust.

H.   The term "First Settlement Date" shall mean                        , 2001.

I.   The terms  "Computation  Day" and "Record Date" shall mean on the tenth day
     of            2001,          2002,        2002 and                2002.

J.   The term "Distribution Date" shall mean on the twenty-fifth  day
     of            2001,          2002,        2002 and                2002.

K.   The term "Termination Date" shall mean          , 2002.

L.   The Trustee's Annual Fee shall be $.90 (per 1,000 Units) for 49,999,999 and
     below  units  outstanding  $.84 (per  1,000  Units) on the next  50,000,000
     Units,  $.78 (per 1,000 Units) on the next 100,000,000  Units and $.66 (per
     1,000 Units) on Units in excess of 200,000,000  Units.  In calculating  the
     Trustee's annual fee, the fee applicable to the number of units outstanding
     shall apply to all units outstanding.

M.   The Depositor's  Portfolio  supervisory service fee shall be $.25 per 1,000
     Units.

               [Signatures and acknowledgments on separate pages]

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