Exhibit 10.41

             SIXTH AMENDMENT TO LOAN AND SECURITY AGREEMENT, WAIVER,
                           AND FIFTH AMENDMENT TO NOTE

         WHEREAS, Object Design, Inc. (the "Company") has entered into a certain
Loan and  Security  Agreement  dated as of December  17, 1996 (as  amended,  the
"Agreement")  with The First  National Bank of Boston (now known as  BankBoston,
N.A.)( the "Bank");
         WHEREAS, the Company has requested,  and the Bank has agreed,  pursuant
to the terms hereof,  to amend the  Agreement by extending the Revolving  Credit
Termination  Date (as defined in the  Agreement)  from June 30, 1999 to December
31, 1999. Capitalized terms used herein and not otherwise defined shall have the
meanings set forth in the Agreement.
         WHEREAS, the Company has requested,  and the Bank has agreed,  pursuant
to the terms hereof, to reduce the amount that can be borrowed under the secured
revolving  credit  facility from a current maximum of $2,000,000 to a maximum of
$450,000.
         WHEREAS, the Company has requested,  and the Bank has agreed,  pursuant
to  the  terms  hereof,  to  waive  certain  terms  of  the  Agreement  and,  in
consideration  for which,  the  Company has agreed to provide the Bank with cash
Collateral.
         NOW,  THEREFORE,  for good and valuable  consideration,  the receipt of
which is hereby acknowledged, the Company and the Bank hereby agree as follows:

I.       Amendment to Agreement.

         1. The definition of : "REVOLVING CREDIT TERMINATION DATE" set forth in
Section 1.1 of the  Agreement is hereby  amended and restated in its entirety as
follows:

                  "REVOLVING CREDIT TERMINATION DATE. December 31, 1999."

         2. The  definition  of  "COLLATERAL"  set forth in  Section  7.1 of the
Agreement is hereby  amended by the addition of the letter (a) at the  beginning
of the first paragraph of Section 7.1, and the addition,  after  "(collectively,
the `Collateral')," of the following:

         (b) To further secure the payment and  performance  of all  obligations
arising  under any  standby  letter of credit,  the Company  hereby  pledges and
grants to the Bank a first lien and  continuing  security  interest  in all cash
delivered to the Bank pursuant to this Agreement (the "CASH"),  all certificates
of deposit purchased with the Cash, as set forth in Section 7.1( ) below, and in
all proceeds,  additions,  substitutions  and  accessions to and of the Cash and
such certificates of deposit  (collectively,  the "CASH  COLLATERAL").  The Cash
Collateral at all times shall be in an amount equal to not less than one hundred
and  five  percent  (105%)  of the  aggregate  face  amount  of all  outstanding
Obligations.  At any time that the  amount of  Collateral  shall fall below such
level, the Company immediately upon demand by the Bank shall deliver to the Bank
additional cash sufficient to correct such shortfall.

         (c) COLLATERAL ACCOUNT.  Unless otherwise instructed by the Company, as
set forth in Section  7.1 (d)  herein,  the Bank shall  directly  or through its
agents deposit all Cash in Money Market Fund  (Institutional  Prime Money Market
Fund (900) (the  "ACCOUNT")  with the Bank.  The Account shall be in the name of
"BankBoston,  N.A. as  Collateral  Pledgee for Object  Design,  Inc.  Collateral
Account,"  shall  bear  the  account  number:   900-4000480732,   and  shall  be
administered  by the agents or  employees  of the Bank.  Any  interest  that may
accrue on the Account  shall be paid over to the Company from time to time,  but
in no event more often than  quarterly,  provided  that no Event of Default,  as
defined in Section  VIII,  or any other event that,  with the passing of time or
giving of notice or both,  would  constitute  an Event of  Default,  shall  have
occurred  and be  continuing.  In  addition,  any  cash in  excess  of any  then
outstanding  Obligations  may be  paid  over  to the  Company  at the  Company's
request,  but in no event more often than  quarterly,  provided that no Event of
Default,  or any other event that,  with the passing of time or giving of notice
or both,  would  constitute  an Event of  Default,  shall have  occurred  and be
continuing. Any such accrued interest or cash that has not been paid over to the
Company shall be deemed to be part of the  Collateral  and subject to the Bank's
lien and continuing security interest as set forth herein.
                                       1

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         (d)  Certificates  of  Deposit.  Upon  written  instructions  from  the
Company,  and subject to the  approval of the Bank,  the Bank shall  directly or
through its agents invest the Cash,  any proceeds from a Certificate of Deposit,
as defined  herein,  or any portion  thereof in a Bank  certificate  of deposit,
which shall have a maturity  of not less than three  months (a  "Certificate  of
Deposit").  Upon the  maturity of any  Certificate  of  Deposit,  the Bank shall
deposit  the  proceeds of such  Certificate  of Deposit in the  Account,  unless
instructed by the Company as set forth in this Section 7.1."

II.      WAIVER.

         The Affirmative  Covenants in Sections 5.7, 5.8, and 5.9, titled "Quick
Ratio,"  "Consolidated  Total  Liabilities  to  Consolidated  Tangible Net Worth
Ratio" and "Profitability,"  respectively,  are hereby waived through the end of
the Company's fiscal quarter ending December 31, 1999.

         The  foregoing  waiver is limited to its express terms and shall not be
deemed to be a waiver of any other Event of Default which may have existed on or
prior to the date hereof or which may hereafter  arise.  Further the granting of
this waiver shall not be construed as a continuing waiver or waiver of any other
Event of Default under the Agreement or any other related documents.

III.     AMENDMENT TO NOTE.
         The Note is hereby  amended by changing the date "June 30, 1999" in the
first and last sentences of the first paragraph thereof to "December 31, 1999."

IV.      MISCELLANEOUS.
         1.  Other  than as  amended  hereby,  all terms and  provisions  of the
Agreement,  the Note, and related  documents are ratified and affirmed as of the
date hereof.

         2. The Company  represents and warrants to the Bank that,  after giving
affect to this  Amendment,  no Default  exists  under the  Agreement  or related
documents.  Upon receipt of a fully executed copy of this Amendment by the Bank,
this  Amendment  shall be deemed to be an instrument  executed  under seal to be
governed by the laws of The  Commonwealth of  Massachusetts  effective as of the
date hereof.

         IN WITNESS WHEREOF,  the parties hereto have executed this Amendment by
their duly authorized officers as of June 30, 1999.

                                                   BANKBOSTON, N.A.
                                                   (formerly known as "THE FIRST
NATIONAL BANK OF BOSTON")


                                                 By: /s/ Lynn R. Schade
                                                    ----------------------------
                                                 Its: V.P. High Technology Group
                                                      Bank of Boston



                                                   OBJECT DESIGN, INC.


                                                   By: /s/ Lacey Brandt
                                                      --------------------------
                                                      Its: CFO