Document:

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                                                                  EXHIBIT 10.48

                              AMENDED AND RESTATED
                                 LOAN AGREEMENT

                                      AMONG

                                 INNOVEDA, INC.

                             VIEWLOGIC SYSTEMS, INC.

                   FLEET NATIONAL BANK, AS AGENT AND A LENDER

                                       AND

                     THE OTHER FINANCIAL INSTITUTIONS NOW OR
                            HEREAFTER PARTIES HERETO

                                  JULY 31, 2000

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                                    INDEX TO
                       AMENDED AND RESTATED LOAN AGREEMENT
<S>                     <C>                                                                                     <C>
ARTICLE I - DEFINITIONS AND ACCOUNTING AND OTHER TERMS............................................................2

   SECTION 1.1.         CERTAIN DEFINED TERMS.....................................................................2
   SECTION 1.2.         ACCOUNTING TERMS.........................................................................20
   SECTION 1.3.         OTHER TERMS..............................................................................20

ARTICLE II - AMOUNT AND TERMS OF THE LOANS.......................................................................21

   SECTION 2.1.         THE LOANS................................................................................21
      Section 2.1.0.     The Revolving Credit Loans..............................................................21
      Section 2.1.1.     Term Loans..............................................................................22

   SECTION 2.2.         INTEREST AND FEES ON THE LOANS...........................................................23
      Section 2.2.1.     Interest; Default Rate of Interest;  Suspension of Libor Loans; Etc.....................23
      Section 2.2.2.     Fees....................................................................................24
      Section 2.2.3.     Increased Costs - Capital...............................................................24
   SECTION 2.3.         NOTATIONS................................................................................25
   SECTION 2.4.         COMPUTATION OF INTEREST..................................................................25
   SECTION 2.5.         TIME OF PAYMENTS AND PREPAYMENTS IN IMMEDIATELY AVAILABLE FUNDS..........................25

      Section 2.5.1.     Time....................................................................................25
      Section 2.5.2.     Setoff, etc.............................................................................26
      Section 2.5.3.     Unconditional Obligations and No Deductions.............................................27

   SECTION 2.6.         PREPAYMENT AND CERTAIN PAYMENTS..........................................................29
      Section 2.6.1.     Mandatory Payments......................................................................29
      Section 2.6.2.     Voluntary Prepayments...................................................................31
      Section 2.6.3.     Prepayment of Libor Loans...............................................................31
      Section 2.6.4.     Permanent Reduction of Commitment.......................................................31
   SECTION 2.7.         PAYMENT ON NON-BUSINESS DAYS.............................................................31
   SECTION 2.8.         USE OF PROCEEDS..........................................................................31
   SECTION 2.9.         SPECIAL LIBOR LOAN PROVISIONS............................................................32

      Section 2.9.1.     Requests................................................................................32
      Section 2.9.2.     Libor Loans Unavailable.................................................................32
      Section 2.9.3.     Libor Lending Unlawful..................................................................33
      Section 2.9.4.     Additional Costs on Libor Loans.........................................................33
      Section 2.9.5.     Libor Funding Losses....................................................................35
      Section 2.9.6.     Banking Practices.......................................................................36
      Section 2.9.7.     Borrower's Options on Unavailability or Increased Cost of Libor Loans...................36
      Section 2.9.8.     Assumptions Concerning Funding of Libor Loans...........................................37
   SECTION 2.10.        INTEREST RATE PROTECTION.................................................................37

ARTICLE III - CONDITIONS OF LENDING..............................................................................37

   SECTION 3.1.         CONDITIONS PRECEDENT TO THE COMMITMENT AND TO ALL LOANS..................................37
      Section 3.1.1.     The Commitment and Initial Loans........................................................37
      Section 3.1.2.     The Commitment and the Loans............................................................40
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<S>                     <C>                                                                                      <C>
ARTICLE IV - REPRESENTATIONS AND WARRANTIES.......................................................................40

      SECTION 4.1.        REPRESENTATIONS AND WARRANTIES OF BORROWER..............................................40
      Section 4.1.1.     Organization and Existence..............................................................41
      Section 4.1.2.     Authorization and Absence of Defaults...................................................41
      Section 4.1.3.     Acquisition of Consents.................................................................41
      Section 4.1.4.     Validity and Enforceability.............................................................41
      Section 4.1.5.     Financial Information...................................................................42
      Section 4.1.6.     No Litigation...........................................................................42
      Section 4.1.7.     Regulation U............................................................................42
      Section 4.1.8.     Absence of Adverse Agreements...........................................................43
      Section 4.1.9.     Taxes...................................................................................43
      Section 4.1.10.      ERISA.................................................................................43
      Section 4.1.11.      Ownership of Properties...............................................................44
      Section 4.1.12.      Accuracy of Representations and Warranties............................................44
      Section 4.1.13.      No Investment Company.................................................................45
      Section 4.1.14.      Solvency, etc.........................................................................45
      Section 4.1.15.      Ownership Interests...................................................................45
      Section 4.1.16.      Licenses, Registrations, Compliance with Laws, etc....................................45
      Section 4.1.17.      Principal Place of Business; Books and Records........................................45
      Section 4.1.18.      Subsidiaries..........................................................................45
      Section 4.1.19.      Copyright.............................................................................46
      Section 4.1.20.      Environmental Compliance..............................................................46
      Section 4.1.21.      Material Agreements, etc..............................................................46
      Section 4.1.22.      Patents, Trademarks and Other Property Rights.........................................47
      Section 4.1.23.      Material Adverse Effect...............................................................47

ARTCILE V - COVENANTS OF THE BORROWER............................................................................47

   SECTION 5.1.         AFFIRMATIVE COVENANTS OF BORROWER OTHER THAN REPORTING
                        REQUIREMENTS.............................................................................47
      Section 5.1.1.     Payment of Taxes, etc...................................................................47
      Section 5.1.2.     Maintenance of Insurance................................................................47
      Section 5.1.3.     Preservation of Existence, etc..........................................................48
      Section 5.1.4.     Compliance with Laws, etc...............................................................49
      Section 5.1.5.     Visitation Rights.......................................................................49
      Section 5.1.6.     Keeping of Records and Books of Account.................................................49
      Section 5.1.7.     Maintenance of Properties, etc..........................................................49
      Section 5.1.8.     Post-Closing Items......................................................................49
      Section 5.1.9.     Other Documents, etc....................................................................49
      Section 5.1.10.      Minimum Debt Service Coverage Ratio...................................................50
      Section 5.1.11.      Minimum Interest Coverage.............................................................50
      Section 5.1.12.      Maximum Leverage Ratio................................................................50
      Section 5.1.13.      Minimum EBITDA........................................................................50
      Section 5.1.14.      Officer's Certificates and Requests...................................................50
      Section 5.1.15.      Depository............................................................................50
      Section 5.1.16.      Reserved..............................................................................50
      Section 5.1.17.      Additional Assurances.................................................................50
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<S>                       <C>                                                                                   <C>
      Section 5.1.18.      Appraisals............................................................................51
      Section 5.1.19.      Environmental Compliance..............................................................51
      Section 5.1.20.      Remediation...........................................................................51
      Section 5.1.21.      Site Assessments......................................................................51
      Section 5.1.22.      Indemnity.............................................................................51
      Section 5.1.23.      Trademarks, Copyrights, etc...........................................................51
      Section 5.1.24.      Maintenance of Escrow.................................................................52

   SECTION 5.2.         NEGATIVE COVENANTS OF BORROWER...........................................................52
      Section 5.2.1.     Liens, etc..............................................................................52
      Section 5.2.2.     Assumptions, Guaranties, etc. of Indebtedness of Other Persons..........................54
      Section 5.2.3.     Dissolution, Merger, etc................................................................54
      Section 5.2.4.     Change in Nature of Business............................................................54
      Section 5.2.5.     Ownership...............................................................................54
      Section 5.2.6.     Sale and Leaseback......................................................................54
      Section 5.2.7.     Sale of Accounts, etc...................................................................54
      Section 5.2.8.     Indebtedness............................................................................55
      Section 5.2.9.     Other Agreements........................................................................55
      Section 5.2.10.      Payment or Prepayment of Equity or Subordinated Debt..................................56
      Section 5.2.11.      Dividends, Payments and Distributions.................................................56
      Section 5.2.12.      Investments/Acquisitions..............................................................56
      Section 5.2.13.      Transactions with Affiliates..........................................................58
      Section 5.2.14.      Change of Fiscal Year.................................................................58
      Section 5.2.15.      Subordination of Claims...............................................................59
      Section 5.2.16.      Compliance with ERISA.................................................................59
      Section 5.2.17.      Capital Expenditures..................................................................59
      Section 5.2.18.      Hazardous Waste.......................................................................59
      Section 5.2.19.      Other Restrictions on Liens or Dividends..............................................60
      Section 5.2.20.      Limitation on Creation/Acquisition of Subsidiaries, etc...............................60
      Section 5.2.21.      Subsidiary Merger, Etc................................................................60
      Section 5.2.22.      Borrower Mergers, Etc.................................................................60
   SECTION 5.3.         REPORTING REQUIREMENTS...................................................................61

ARTICLE VI - EVENTS OF DEFAULT...................................................................................63

   SECTION 6.1.         EVENTS OF DEFAULT........................................................................63

ARTICLE VII - REMEDIES OF LENDERS................................................................................65

ARTICLE VIII - AGENT.............................................................................................66

   SECTION 8.1.         APPOINTMENT..............................................................................66
   SECTION 8.2.         POWERS; GENERAL IMMUNITY.................................................................66
      Section 8.2.1.     Duties Specified........................................................................66
      Section 8.2.2.     No Responsibility For Certain Matters...................................................66
      Section 8.2.3.     Exculpatory Provisions..................................................................67
      Section 8.2.4.     Agent Entitled to Act as Lender.........................................................67
   SECTION 8.3.         REPRESENTATIONS AND WARRANTIES; NO RESPONSIBILITY FOR APPRAISAL
                        OF CREDITWORTHINESS......................................................................67
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<S>                     <C>                                                                                      <C>
   SECTION 8.4.         RIGHT TO INDEMNITY.......................................................................68
   SECTION 8.5.         PAYEE OF NOTE TREATED AS OWNER...........................................................68
   SECTION 8.6.         RESIGNATION BY AGENT.....................................................................68
   SECTION 8.7.         SUCCESSOR AGENT..........................................................................69

ARTICLE IX - MISCELLANEOUS.......................................................................................69

   SECTION 9.1.         CONSENT TO JURISDICTION AND SERVICE OF PROCESS...........................................69
   SECTION 9.2.         RIGHTS AND REMEDIES CUMULATIVE...........................................................70
   SECTION 9.3.         DELAY OR OMISSION NOT WAIVER.............................................................70
   SECTION 9.4          WAIVER OF STAY OR EXTENSION LAWS.........................................................70
   SECTION 9.5.         AMENDMENTS, ETC..........................................................................71
   SECTION 9.6.         ADDRESSES FOR NOTICES, ETC...............................................................71
   SECTION 9.7.         COSTS, EXPENSES AND TAXES................................................................73
   SECTION 9.8.         PARTICIPATIONS...........................................................................73
   SECTION 9.9.         BINDING EFFECT; ASSIGNMENT...............................................................73
   SECTION 9.10.        ACTUAL KNOWLEDGE.........................................................................74
   SECTION 9.11.        ASSIGNMENTS..............................................................................74
   SECTION 9.12.        PAYMENTS PRO RATA........................................................................76
   SECTION 9.13.        INDEMNIFICATION..........................................................................77
   SECTION 9.14.        GOVERNING LAW............................................................................78
   SECTION 9.15.        SEVERABILITY OF PROVISIONS...............................................................78
   SECTION 9.16.        HEADINGS.................................................................................78
   SECTION 9.17.        COUNTERPARTS.............................................................................81

                              SCHEDULE OF EXHIBITS

EXHIBIT 1.1                 EQUITY INVESTMENTS, OWNERSHIP INTERESTS AND SUBSIDIARIES

EXHIBIT 1.4                 FORM OF INTEREST RATE ELECTION
EXHIBIT 1.5                 FORM OF REVOLVING CREDIT NOTE
EXHIBIT 1.6                 FORM OF TERM NOTE
EXHIBIT 1.8                 PERMITTED ENCUMBRANCES
EXHIBIT 1.9                 PRO RATA SHARES - AGENT'S AND LENDERS' NOTICE ADDRESSES AND WIRE TRANSFER INSTRUCTIONS
EXHIBIT 1.10                FORM OF REQUEST
EXHIBIT 1.12                PROJECTIONS
EXHIBIT 3.1.1.8             PERMITTED INDEBTEDNESS AND CAPITALIZED LEASES
EXHIBIT 3.1.1.10            FORM OF COMPLIANCE CERTIFICATE
EXHIBIT 4.1.1               ORGANIZATION AND EXISTENCE
EXHIBIT 4.1.2               AUTHORIZATIONS AND ABSENCE OF DEFAULTS
EXHIBIT 4.1.3               CONSENTS
EXHIBIT 4.1.6               LITIGATION
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                                      (iv)

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<S>                         <C>
EXHIBIT 4.1.8               ADVERSE AGREEMENTS
EXHIBIT 4.1.9               TAXES
EXHIBIT 4.1.11              REAL ESTATE LEASED/OWNED BY BORROWER
EXHIBIT 4.1.16              LICENSES, REGISTRATIONS, COMPLIANCE WITH LAWS, ETC
EXHIBIT 4.1.19              COPYRIGHTS
EXHIBIT 4.1.20              HAZARDOUS WASTE
EXHIBIT 4.1.21              MATERIAL AGREEMENTS
EXHIBIT 4.1.22              PATENTS TRADEMARKS AND OTHER PROPERTY RIGHTS
EXHIBIT 5.2.2.4             GUARANTIES
EXHIBIT 5.2.13              TRANSACTIONS WITH AFFILIATES
EXHIBIT 5.3.11              FORM OF BORROWING BASE CERTIFICATE
EXHIBIT 5.3.12              FORM OF ASSIGNMENT AND NOTICE OF ASSIGNMENT (US GOVERNMENT CONTRACTS)
EXHIBIT 9.11.1              FORM OF ASSIGNMENT AGREEMENT

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                                      (v)

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                              AMENDED AND RESTATED

                                 LOAN AGREEMENT

         INNOVEDA, INC., a Delaware corporation ("INNOVEDA") and VIEWLOGIC
SYSTEMS, INC., a Delaware corporation ("Viewlogic"), each with a principal place
of business at 293 Boston Post Road West, Marlboro, Massachusetts 01752-4615
(hereinafter sometimes collectively the "Borrower"), FLEET NATIONAL BANK, a
national banking association organized under the laws of the United States and
having an office at 100 Federal Street, Boston, Massachusetts 02110, as agent,
(hereinafter sometimes the "Agent," as Agent for itself and each of the other
Lenders who now and/or hereafter become parties to this Agreement pursuant to
the terms of SECTION 9.11 hereof, sometimes "Fleet," and sometimes in its
capacity as a Lender "Lender"), and such Lenders, hereby agree as follows:

         WHEREAS, the parties have entered into a Loan Agreement dated as of
October 2, 1998 among Viewlogic, Agent, and Lender, as amended by a First
Amendment dated October 2, 1998, a Second Amendment dated March 2, 1999, and a
Third Amendment dated December 31, 1999 (the "1998 LOAN AGREEMENT"), pursuant to
which Lender made a Term Loan to Viewlogic in the principal amount of
$18,000,000.00 and established a Revolving Credit Loan Commitment to Viewlogic
in the maximum principal amount of $6,000,000.00;

         WHEREAS, pursuant to a Certificate of Merger filed by Viewlogic with
the Secretary of State of the State of Delaware on March 23, 2000 pursuant to a
Merger Agreement and Plan of Reorganization dated September 16, 1999 by and
among Summit Design, Inc., a Delaware corporation ("SUMMIT"), Hood Acquisition
Corp., a Delaware corporation, a wholly-owned subsidiary of Summit ("Hood") and
Viewlogic, Hood was merged with and into Viewlogic with Viewlogic as the
surviving entity effective March 23, 2000 (the "MERGER");

         WHEREAS, as a result of the Merger, Summit became the owner of one
hundred percent of the issued and outstanding shares of common stock of
Viewlogic;

         WHEREAS, pursuant to a First Amendment to Amended and Restated
Certificate of Incorporation filed by Summit with the Secretary of State of the
State of Delaware on March 23, 2000, Summit changed its name to "Innoveda,
Inc.;"

         WHEREAS, Viewlogic and Lender have agreed to make certain modifications
to the Loan Agreement, including the addition of Innoveda as a joint and several
borrower under the Loan Agreement;

         NOW THEREFORE, in consideration of the foregoing premises and the
mutual benefits to be derived by Innoveda, Viewlogic, and the Lenders from a
continuing relationship under this Agreement and for other good and valuable
consideration, the receipt and adequacy of which are hereby acknowledged, the
parties hereto agree that the 1998 Loan Agreement is hereby amended and restated
in its entirety as follows:

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                                      -2-

                                    ARTICLE I

                   DEFINITIONS AND ACCOUNTING AND OTHER TERMS

          SECTION 1.1. CERTAIN DEFINED TERMS. As used in this Agreement, the
following terms shall have the following meanings (such meanings to be equally
applicable to both the singular and plural forms of the terms defined):

         "ADJUSTED LIBOR RATE" means, with respect to any Libor Loan to be made
by the Lenders for the Interest Period applicable to such Libor Loan, the rate
per annum (rounded upward, if necessary, to the nearest 1/32 of one percent) as
determined on the basis of the offered rates for deposits in Dollars, for a
period of time and for an amount comparable to such Libor Loan which appears on
the Dow Jones Page 3750 as of 11:00 a.m. London time on the day that is two
Business Days preceding the first day of such Libor Loan; provided, however, if
such rate does not appear on such page, or such page is not available on any
applicable Interest Adjustment Date, the Adjusted Libor Rate shall be the rate
(rounded upwards as described above, if necessary) for deposits in Dollars for a
period and for an amount comparable to such Libor Loan on the Reuters Page
"LIBO" (or such other page as may replace the LIBO Page on that service for the
purpose of displaying such rates), as of 11:00 a.m. (London Time), on the day
that is two Business Days prior to the beginning of such Interest Period. As
used herein, "Dow Jones Page 3750" means the display designated as "Page 3750"
on the Dow Jones Market Service (formerly known as the Telerate Service), or
such other page as may replace that page on that service for the purpose of
displaying London interbank offered rates of major banks for U.S. Dollar
deposits.

         If both the Dow Jones and Reuters system are unavailable, then the rate
for that date will be determined on the basis of the offered rates for deposits
in Dollars for a period of time and for an amount comparable to such Libor Loan
which are offered to each Reference Lender by four first class banks in the
London interbank market at approximately 11:00 a.m. London time, on the day that
is two Business Days preceding the first day of such Libor Loan as selected by
the Lender. The principal London office of each of the four first-class London
banks will be requested to provide a quotation of its Dollar deposit offered
rate. If at least two such quotations are provided, the rate for that date will
be the arithmetic mean of the quotations. If fewer than two quotations are
provided as requested, the rate for that date will be determined on the basis of
the rates quoted for loans in Dollars to leading European banks for a period of
time comparable to such Libor Loan offered by major banks in New York City at
approximately 11:00 a.m. New York City time, on the day that is two Business
Days preceding the first day of such Libor Loan. In the event that the Reference
Lenders are unable to obtain any such quotation as provided above, it will be
deemed that the Adjusted Libor Rate pursuant to a Libor Loan cannot be
determined.

         In the event that the Board of Governors of the Federal Reserve System
shall impose a "Reserve Percentage" with respect to Libor deposits of any
Reference Lender then, to the extent that the rate determined in the foregoing
paragraph does not include a provision for such Reserve Percentage, for any
period during which such Reserve Percentage shall apply, the Adjusted Libor

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                                      -3-

Rate shall be equal to the amount determined above divided by an amount equal to
1 minus the Reserve Percentage. If any Reference Lender fails to provide its
offered quotation to the Agent, the Adjusted Libor Rate shall be determined on
the basis of the offered quotation of the other Reference Lender. The Adjusted
Libor Rate shall be adjusted automatically on and as of the effective date of
any change in the Libor Rate Reserve Percentage.

         "ADVANCE" and "ADVANCES" means the funding by any Lender of all or a
portion of the Loans in accordance with this Agreement.

         "AFFILIATE" means singly and collectively, any Person (other than a
Subsidiary) which, directly or indirectly, is in control of, is controlled by,
or is under common control with, a Borrower. For purposes of this definition, a
Person shall be deemed to be "controlled by" a Borrower if such Borrower
possesses, directly or indirectly, power either to (i) vote 10% or more of the
securities having ordinary voting power for the election of directors of such
Person or (ii) direct or cause the direction of the management and policies of
such Person whether by contract or otherwise, and the legal representative,
successor or assign of any such Person.

         "AGENT" means Fleet or any other Person which is at the time in
question serving as the agent under the terms of Article VIII hereof and the
other Financing Documents.

         "AGREEMENT" means this loan agreement, as the same may from time to
time be amended.

         "A.M." means a time from and including 12 o'clock midnight to and
excluding 12 o'clock noon on any Business Day using Eastern Standard (Daylight
Savings) time.

          "APPLICABLE MARGIN" means, as of any date Borrower the applicable per
annum percentage set forth below:

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-------------------- ------------------------------ ---------------------- ----------------------------------
       LEVEL                LEVERAGE RATIO            PRIME RATE LOANS                LIBOR LOANS
       <S>             <C>                                <C>                          <C>

-------------------- ------------------------------ ---------------------- ----------------------------------
-------------------- ------------------------------ ---------------------- ----------------------------------
         I                 Greater than 2:1                  1%                          2.75%
-------------------- ------------------------------ ---------------------- ----------------------------------
-------------------- ------------------------------ ---------------------- ----------------------------------
        II             Greater than 1:1 and less            .50%                          2%
                         than or equal to 2:1
-------------------- ------------------------------ ---------------------- ----------------------------------
-------------------- ------------------------------ ---------------------- ----------------------------------
        III                   1:1 or less                   .00%                          1%
-------------------- ------------------------------ ---------------------- ----------------------------------

</TABLE>

Any change in the Applicable Margin required pursuant to the foregoing shall
become effective on the fifth Business Day after the Agent receives Borrower's
financial statements for Borrower's fiscal quarter or year-end, as the case may
be. In the event that the financial statements required to be delivered pursuant
to SECTION 5.3.2 or 5.3.3 are not delivered when due, are delivered thereafter
and an interest rate adjustment is required , such adjustment shall be
retroactively effective to the date on which the financial statements in
question should have been delivered to the Agent in accordance with SECTION
5.3.2 or 5.3.3, as the case may be, and (i) Borrower shall pay any amount owing
by Borrower as a result thereof upon written demand

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                                      -4-

from the Agent or (ii) if any amount is owing to Borrower as a result of such
adjustment, such amount shall be credited against interest accruing on the Loans
then outstanding ratably among the Lenders. In the event that the Applicable
Margin which is calculated based on Borrower's unaudited financial statements
for any fiscal quarter of any fiscal year of Borrower delivered pursuant to
SECTION 5.3.3 is different from the Applicable Margin which is calculated based
on Borrower's audited financial statements delivered pursuant to SECTION 5.3.2
for such year, then the Applicable Margin shall be adjusted retroactively, and
(i) if any amount is owing to the Lenders as a result of such adjustment,
Borrower shall pay such amount upon demand by the Agent to the Agent for the
ratable benefit of the Lenders, or (ii) if any amount is owing to Borrower as a
result of such adjustment, such amount shall be credited against interest
accruing on the Loans then outstanding ratably among the Lenders, PROVIDED THAT
in the event of a dispute as to the appropriate fiscal quarter as to which any
adjustment should be allocated, the decision of the independent accountants of
Borrower shall be made in accordance with GAAP and shall be binding upon the
Agent, the Lenders and Borrower absent manifest error. If the amount of any
credit due to Borrower as a result of such adjustment exceeds the aggregate
amount of interest accruing on the Loans in all remaining periods during which
Loans are outstanding, the Lenders shall reimburse Borrower for the amount of
such credit which remains unapplied to pay interest within ten (10) Business
Days after all Loans have been paid in full and the Commitments are terminated.
The Agent shall send Borrower written notification (each a "Notice of Interest
Rate Change") of each change in the Applicable Margin in accordance with the
Agent's customary procedures as in effect from time to time, but the failure to
send such notice shall have no effect on the effectiveness or applicability of
the foregoing provisions of this definition or Borrower's obligations with
respect to payment and calculation of interest on the Loans.

         Each Notice of Interest Rate Change shall be deemed correct and
accepted by Borrower unless within thirty (30) days after the date of any such
Notice of Interest Rate Change, written notice to the contrary is received by
the Agent from Borrower. In the event that no interest rate adjustment is made
by the Agent in accordance with the foregoing, or no Notice of Interest Rate
Change is received by Borrower, any claim for an interest rate adjustment under
this provision must be made by Borrower by written statement of Borrower's claim
providing in reasonable detail Borrower's calculations of the interest rate
adjustments being requested delivered to the Agent no later than the earlier of
(i) with respect to adjustments based on Borrower's unaudited financial
statements, the earlier of (A) thirty (30) days after the date such statements
are delivered to the Agent, and (B) seventy-five (75) days after the last day of
each Borrower fiscal quarter, and (ii) with respect to adjustments based on
Borrower's audited financial statements, (A) thirty (30) days after the date
such statements are delivered and (B) one hundred and twenty (120) days after
the last day of each Borrower fiscal year end.

          "ASSIGNMENT AND ACCEPTANCE AGREEMENT" has the meaning assigned to such
term in SECTION 9.11.1.

         "AUTHORIZED REPRESENTATIVE" means such senior personnel of Borrower as
shall be duly authorized and designated in writing by Borrower to execute
documents, instruments and

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                                      -5-

agreements on its behalf and to perform the functions of Authorized
Representative under any of the Financing Documents.

         "BORROWED MONEY" means any obligation to repay Indebtedness for money
borrowed, any Indebtedness evidenced by notes, bonds, debentures, guaranties or
similar obligations including without limitation the Loans and any obligation to
pay money under a conditional sale or other title retention agreement, the net
aggregate rentals payable under any Capitalized Lease Obligation, any
reimbursement obligation for any letter of credit and any obligations in respect
of banker's and other acceptances or similar obligations.

         "BORROWER" refers to both Innoveda, Inc., and Viewlogic Systems, Inc.,
each a Delaware corporation, or either one of them, as the context may require.

         "Borrowing Base" means, as of any date of determination (i) 80% of the
Net Amount of Eligible Domestic Receivables PLUS (ii) 80% of the Net Amount of
Eligible Foreign Receivables.

         "BORROWING BASE CERTIFICATE" means a certificate substantially in the
form of EXHIBIT 5.3.11, or such other form as Agent shall provide.

         "BUDGET" has the meaning assigned to such term in SECTION 5.3.6.

         "BUSINESS CONDITION" means the financial condition, business, assets,
liabilities and operations of a Person.

         "BUSINESS DAY" means (i) for all purposes other than as covered by
clause (ii) below, any day on which banks in Boston, Massachusetts or New York,
New York are not authorized or required by applicable law to close; and (ii)
with respect to all notices and determinations in connection with, and payments
of principal and interest on, Libor Loans, any day which is a Business Day
described in clause (i) and which is also a day for trading by and between banks
in Dollar deposits in the London interbank market.

         "CAPITAL EXPENDITURES" means all expenditures paid or incurred by
Borrower or any Subsidiary in respect of (i) the acquisition, construction,
improvement or replacement of land, buildings, machinery, equipment, any other
fixed assets or leaseholds and (ii) to the extent related to and not included in
(i) above, materials, contract labor and direct labor, which expenditures have
been or should be, in accordance with GAAP, capitalized on the books of Borrower
or such Subsidiary. Where a fixed asset is acquired by a lease which is required
to be capitalized pursuant to Statement of Financial Accounting Standards number
13 or any successor thereto, the amount required to be capitalized in accordance
therewith shall be considered to be an expenditure in the year such asset is
first leased.

         "CAPITALIZED LEASE OBLIGATIONS" means all lease obligations which have
been or should be, in accordance with GAAP, capitalized on the books of the
lessee.

<PAGE>

                                      -6-

         "CAPITALIZED SOFTWARE DEVELOPMENT COSTS" means Borrower's and its
Subsidiaries' consolidated costs of software development which are capitalized
on the financial statements and books and records of the Person incurring such
costs.

         "CASH EQUIVALENT INVESTMENTS" means any Investment in (i) direct
obligations of the United States or any agency, authority or instrumentality
thereof, or obligations guaranteed by the United States or any agency, authority
or instrumentality thereof, whether or not supported by the full faith and
credit of, a right to borrow from or the ability to be purchased by the United
States; (ii) commercial paper rated in the highest grade by a nationally
recognized statistical rating agency or which, if not rated, is issued or
guaranteed by any issuer with outstanding long-term debt rated A or better by
any nationally recognized statistical rating agency; (iii) demand and time
deposits with, and certificates of deposit and bankers acceptances issued by,
any office of the Agent, any Lender or any other bank or trust company which is
organized under the laws of the United States or any state thereof and has
capital, surplus and undivided profits aggregating at least $500,000,000, the
outstanding long-term debt of which or of the holding company of which it is a
subsidiary is rated A or better by any nationally recognized statistical rating
agency; (iv) any short-term note which has a rating of MIG-2 or better by
Moody's Investors Service Inc. or a comparable rating from any other nationally
recognized statistical rating agency; (v) any municipal bond or other
governmental obligation (including without limitation any industrial revenue
bond or project note) which is rated A or better by any nationally recognized
statistical rating agency; (vi) any other obligation of any issuer, the
outstanding long-term debt of which is rated A or better by any nationally
recognized statistical rating agency; (vii) any repurchase agreement with any
financial institution described in clause (iii) above, relating to any of the
foregoing instruments and fully collateralized by such instruments; (viii)
shares of any open-end diversified investment company that has its assets
invested only in investments of the types described in clause (i) through (vii)
above at the time of purchase and which maintains a constant net asset value per
share; and (ix) shares of any open-end diversified investment company registered
under the Investment Company Act of 1940, as amended, which maintains a constant
net asset value per share in accordance with regulations of the Securities &
Exchange Commission, has aggregate net assets of not less than $50,000,000 on
the date of purchase and either derives at least 95% of its gross income from
interest on or gains from the sale of investments of the type described in
clauses (i) through (vii), above or has at least 85% of the weighted average
value of its assets invested in investments of such types; provided that the
purchase of any shares in any particular investment company shall be limited to
an aggregate amount owned at any one time of $500,000. Each Cash Equivalent
Investment shall have a maturity of less than one year at the time of purchase;
provided that the maturity of any repurchase agreement shall be deemed to be the
repurchase date and not the maturity of the subject security and that the
maturity of any variable or floating rate note subject to prepayment at the
option of the holder shall be the period remaining (including any notice period
remaining) before the holder is entitled to prepayment.

<PAGE>

                                      -7-

         "CHANGE OF CONTROL" means Borrower any one of the following events:

    (i) any "person" or "group" (each as used in Sections 13(d)(3) and 14(d)(2)
    of the Securities Exchange Act of 1934, as amended from time to time), other
    than the Sprout Group, either (A) becomes the "beneficial owner" (as defined
    in Rule 13d-3 of the Exchange Act), directly or indirectly, of voting
    capital stock of Innoveda (or securities convertible into or exchangeable
    for such voting capital stock) representing 32% or more of the combined
    voting power of all voting capital stock of Innoveda(on a fully diluted
    basis) or (B) otherwise has the ability, directly or indirectly, to elect a
    majority of the board of directors of Innoveda; or

    (ii) during any period of up to 24 consecutive months, commencing on the
    Closing Date, individuals who at the beginning of such 24-month period were
    directors of Innoveda, or who were nominated for election as directors by
    the board of directors Innoveda (or the nominating committee thereof), shall
    cease for any reason (other than (A) the death, disability or retirement of
    a director or (B) the death, disability or retirement of an officer of
    Innoveda that is serving as a director at such time so long as another
    officer of Innoveda replaces such Person as a director) to constitute a
    majority of the board of directors of Innoveda.

         "CLOSING DATE" means the date on which all of the conditions precedent
set forth in SECTION 3.1 of this Agreement have been satisfied.

         "CODE" means the Internal Revenue Code of 1986, as amended from time to
time.

         "COMMITMENT" means the Lenders' several commitments to make or maintain
the Loans as set forth in SECTION 2.1 hereof in the maximum outstanding amount
of each Lender's Pro Rata Share of the Revolving Credit Loan Commitment and the
Term Loan $less the reductions set forth in SECTION 2.1 and less any reductions
and prepayments or repayments of the Term Loan as set forth in SECTION 2.6.

         "COMMONLY CONTROLLED ENTITY" means a Person, whether or not
incorporated, which is under common control with Borrower within the meaning of
Section 414(b) or (c) of the Code.

         "CURRENT LIABILITIES" means, at any date of determination, all
liabilities that should, in accordance with GAAP, be classified as current
liabilities on the consolidated balance sheet of Innoveda, PLUS, to the extent
not included therein, all Revolving Credit Loans, the Term Loan and all other
Obligations.

         "DEBT SERVICE COVERAGE RATIO" means as at the date of any determination
thereof, the ratio of (i) consolidated EBITDA MINUS the sum of consolidated
Capital Expenditures and taxes paid and currently payable for the rolling four
Borrower fiscal quarter period consisting of Borrower fiscal quarter then ending
and the three immediately preceding Borrower fiscal quarters, to (ii) Total Debt
Service, which for the Borrower's fiscal quarters ending prior to June 30, 2000
shall be based on PRO FORMA Results.

<PAGE>

                                      -8-

         "DEFAULT" means an event or condition which with the giving of notice
or lapse of time or both would become an Event of Default.

         "DEFAULT RATE" has the meaning set forth in SECTION 2.2.1 hereof.

         "DEFERRED REVENUE" means consolidated income to be recognized upon the
happening of certain future events or a satisfaction of certain conditions which
is classified as [deferred revenue] in accordance with GAAP.

         "DISCHARGED RIGHTS AND OBLIGATIONS" shall have the meaning assigned to
such term in SECTION 9.11.4.

          "DOLLARS" and the sign "$" mean lawful money of the United States of
America.

         "DOMESTIC RECEIVABLE" means a Receivable owing by an account debtor
located in one of the contiguous states of the United States of America or
Hawaii.

         "DOMESTIC SUBSIDIARY" MEANS ANY SUBSIDIARY organized under the laws of
the United States of America.

         "EBITDA" means, for any fiscal period, consolidated Net Income PLUS, to
the extent accounted for in consolidated Net Income, consolidated Interest
Expense, taxes, depreciation, amortization, any other noncash charges or any
non-recurring extraordinary costs incurred by Borrower and any Subsidiaries in
connection with any Acquisition, and for any fiscal period ending in 1999,
severance costs and write-offs of note receivables reflected on the financial
statements of Summit, for such period determined on an accrual and consolidated
basis in accordance with GAAP, LESS Capitalized Software Development Costs.

         "EFFECTIVE PRIME" means the Prime Rate plus the Applicable Margin.

         "ELIGIBLE DOMESTIC RECEIVABLES" means Domestic Receivables of Borrower
as to which Agent has a first perfected security interest and Borrower has
furnished Agent the information required under Section 5.3.11 and, if
applicable, Section 5.3.12, and which strictly comply with all of Borrower's
representations, warranties and covenants contained herein with respect thereto
but excluding in any event:

     (i)   Receivables that are evidenced by promissory notes or chattel paper;

     (ii)  Receivables that represent amounts due from Affiliates or employees
           of Borrower;

     (iii) Receivables that remain unpaid more than ninety (90) days after the
           date of the original invoices giving rise to such Receivables;

<PAGE>

                                      -9-

     (iv)  Unless otherwise approved by the Lenders, Receivables owing by any
           account debtor which when aggregated with any other Receivables owing
           by such account debtor or any affiliate of such account debtor
           constitute more than twenty-five percent (25%) of all other Eligible
           Receivables outstanding as of the date of any determination, unless
           such Receivables are covered by credit insurance (after giving effect
           to any such deductible applicable to such Receivables) payable in
           U.S. dollars issued by an insurer on terms and in amounts acceptable
           to Lender, and, if requested by Agent, payable directly to the Agent
           ("Cross Aged Receivables");

     (v)   Receivables arising from sales on consignment, guaranteed sale, sale
           and return, sale on approval, or other terms under which payment may
           be conditional or contingent;

     (vi)  Receivables consisting of progress billings, bill and hold
           receivables, or retainages;

     (vii) Receivables as to which a contra or other right of set-off exists, or
           as to which an account debtor has asserted a counterclaim, defense or
           dispute;

     (viii)Receivables subject to any lien or other encumbrance other than Liens
           in favor of Agent;

     (ix)  Receivables owing by the United States of America, or any state,
           political subdivision, department, agency or instrumentality thereof,
           unless pursuant to SECTION 5.3.12 hereof, a completed and duly
           executed Assignment and Notice of Assignment has been delivered to
           Agent in triplicate and any and all other requirements imposed by the
           Federal Assignment of Claims Act of 1940, as amended and including
           any successor state thereto, or any similar state or local law has
           been complied with in a manner satisfactory to Agent;

     (x)   Receivables otherwise deemed ineligible by Agent on the basis of any
           collectibility or other credit or collateral concerns therewith,
           which determination shall be made by Agent in good faith based upon
           Agent's customary commercial practices.

         "ELIGIBLE FOREIGN RECEIVABLES" means Foreign Receivables of Borrower as
to which Agent has a first perfected security interest and Borrower has
furnished Agent the information required under Section 5.3.11 and, if
applicable, Section 5.3.12, and which strictly comply with all of Borrower's
representations, warranties and covenants contained herein with respect thereto
but excluding in any event:

     (i)   Receivables that are evidenced by promissory notes or chattel paper;

     (ii) Receivables that represent amounts due from Affiliates or employees of
          Borrower;

     (iii) Receivables that remain unpaid more than ninety (90) days after the
           date of the original invoices giving rise to such Receivables;

<PAGE>

                                      -10-

     (iv)  Unless otherwise approved by the Lenders, Receivables owing by any
           account debtor which when aggregated with any other Receivables owing
           by such account debtor or any affiliate of such account debtor
           constitute more than twenty-five percent (25%) of all other Eligible
           Receivables outstanding as of the date of any determination, unless
           such Receivables are covered by credit insurance (after giving effect
           to any such deductible applicable to such Receivables) payable in
           U.S. dollars issued by an insurer on terms and in amounts acceptable
           to Lender, and, if requested by Agent, payable directly to the Agent
           ("CROSS AGED RECEIVABLES");

     (v)   Receivables arising from sales on consignment, guaranteed sale, sale
           and return, sale on approval, or other terms under which payment may
           be conditional or contingent;

     (vi) Receivables consisting of progress billings, bill and hold
          receivables, or retainages;

     (vii) Receivables as to which a contra or other right of set-off exists, or
           as to which an account debtor has asserted a counterclaim, defense or
           dispute;

     (viii)Receivables subject to any lien or other encumbrance other than Liens
           in favor of Agent;

     (ix)  Other than Receivables owing by Marubeni Solutions, Seiko Instruments
           and Kyoden not to exceed in the aggregate thirty (30) percent of all
           other Eligible Receivables outstanding as of the date of any
           determination, Receivables that are not (i) supported by a letter of
           credit in form and substance satisfactory to Agent issued or
           confirmed by a depository institution reasonably acceptable to Agent
           and located in the continental United States of America, payable at
           sight in U.S. Dollars by presentation in the United States of
           America, and, if requested by Agent, payable directly to the Agent by
           an assignment of the proceeds thereof, or (ii) covered by credit
           insurance (after giving effect to any such deductible applicable to
           such Receivables) payable in U.S. dollars issued by an insurer on
           terms and in amounts acceptable to Agent, and, if requested by Agent,
           payable directly to the Agent.

     (x)   Receivables otherwise deemed ineligible by Agent on the basis of any
           collectibility or other credit or collateral concerns therewith
           (which may include, without limitation, Receivables owing by account
           debtors expressly excluded from the requirements of subclause (ix)
           above), which determination shall be made by Agent in good faith
           based upon Agent's customary commercial practices.

         "ELIGIBLE RECEIVABLE" means either an Eligible Domestic Receivable or
an Eligible Foreign Receivable and "ELigible Receivables" mean any two or more
Eligible Domestic Receivables and/or Eligible Foreign Receivables.

<PAGE>

                                      -11-

         "ERISA" means the Employee Retirement Income Security Act of 1974 as
amended from time to time.

         "EVENTS OF DEFAULT" has the meaning assigned to that term in SECTION
6.1 of this Agreement.

         "EXCESS CASH FLOW" means, for any Fiscal Period, consolidated EBITDA
for such Fiscal Period, MINUS the sum of (i) the amount equal to the payments
included in consolidated Total Debt Service paid during such Fiscal Period, (ii)
to the extent not included in Total Debt Service, all consolidated Capital
Expenditures permitted under SECTION 5.2.17 and paid during such Fiscal Period,
(iii) voluntary principal prepayments of the Term Loans made during such Fiscal
Period, (iv) consolidated taxes payable during such Fiscal Period and (v) PLUS
or MINUS changes in consolidated working capital during such Fiscal Period.

         "EXHIBIT" means, when followed by a letter, the Exhibit attached to
this Agreement bearing that letter and by such reference fully incorporated in
this Agreement.

         "FEDERAL FUNDS RATE" means, for any day, the rate per annum (rounded
upward, if necessary, to the nearest 1/16th of 1%) equal to the weighted average
of the rates on overnight Federal funds transactions with members of the Federal
Reserve System arranged by Federal funds brokers on such day, as published by
the Federal Reserve Bank of New York, PROVIDED that (i) if such day is not a
Business Day, the Federal Funds Rate for such day shall be such rate on such
transactions on the next succeeding Business Day as so published, and (ii) if no
such rate is so published on such next succeeding Business Day, the Federal
Funds Rate for such day shall be the average rate quoted to the Agent on such
day on such transactions as determined by the Agent in its discretion exercised
in good faith.

         "FINANCING DOCUMENTS" means, collectively, this Agreement, each Note,
the Security Documents, the Post-Closing Letter, any Letter of Credit, any
Letter of Credit Agreement, any Hedge Agreement, any other agreement with any
Lender providing cash management services, foreign exchange products and each
other agreement, instrument or document now or hereafter executed in connection
herewith or therewith.

         "FISCAL PERIOD" means for purposes of SECTION 2.6.1.2(b), each of
Borrower's fiscal years ending after January 1, 2000.

          "FOREIGN RECEIVABLE" means any Receivable which is not a Domestic
Receivable.

          "FOREIGN SUBSIDIARY" means any Subsidiary which is not a Domestic
Subsidiary.

         "GAAP" means generally accepted accounting principles in effect from
time to time in the United States of America.

         "GOVERNMENTAL APPROVALS" All permits, licenses, registrations,
consents, approvals and other authorizations material to the carrying out of
Borrower's and each of the Subsidiaries'

<PAGE>

                                      -12-

businesses required by law or the rules and regulations of any federal, foreign
governmental, state, county or local association, corporation or governmental
agency, body, instrumentality or commission having jurisdiction over Borrower or
any of the Subsidiaries, including but not limited to the United States
Environmental Protection Agency, the United States Department of Labor, the
United States Occupational Safety and Health Administration, the United States
Equal Employment Opportunity Commission, the Federal Trade Commission and the
United States Department of Justice and analogous and related state and foreign
agencies.

         "HAZARDOUS MATERIAL" means any substance or material defined or
designated as a hazardous or toxic waste, hazardous or toxic material, hazardous
or toxic substance, or other similar term, by any United States federal, state
or local environmental statute, regulation or ordinance.

         "HEDGE AGREEMENTS" means with respect to any Person, any and all
interest rate swap, cap or collar agreements, interest rate future or option
contracts, currency swap agreements, currency future or option contracts and
other similar agreements to or under which Borrower is a party or a beneficiary
obligating such Person to make payments, whether periodically or upon the
happening of a contingency. For purposes of this Agreement, the amount of the
obligation under any Hedge Agreement shall be the amount determined in respect
thereof as of the end of the then most recently ended fiscal quarter of such
Person, based on the assumption that such obligation had terminated at the end
of such fiscal quarter, and in making such determination, if any such agreement
provides for the netting of amounts payable by and to such Person, then in each
such case, the amount of such obligation shall be the net amount so determined.

         "INDEBTEDNESS" means, without duplication for any Person, (i) all
indebtedness or other obligations of said Person for Borrowed Money or for the
deferred purchase price of property or services, including, without limitation,
all reimbursement obligations of said Person with respect to standby and/or
documentary letters of credit (ii) the indebtedness or other obligations of any
other Person ("Other Person") for Borrowed Money or for the deferred purchase
price of property or services, the payment or collection of which said Person
has guaranteed (except by reason of endorsement for deposit or collection in the
ordinary course of business) or in respect of which said Person is liable,
contingently or otherwise, whether by way of agreement to purchase or lease, to
provide funds for payment, to supply funds to purchase, sell or lease property
or services primarily to assure a creditor of such Other Person against loss or
otherwise to invest in or make a loan to the Other Person, or otherwise to
assure a creditor of such Other Person against loss, (iii) all indebtedness or
other obligations of any Person for Borrowed Money or for the deferred purchase
price of property or services secured by (or for which the holder of such
indebtedness has an existing right, contingent or otherwise, to be secured by)
any Lien upon or in any property owned by said Person, whether or not said
Person has assumed or become liable for the payment of such indebtedness or
obligations, (iv) Capitalized Lease Obligations of said Person and (v)
obligations of such Person, in the notional amount, under contracts pursuant to
which such Person has agreed to purchase interest rate protection or swap
interest rate obligations.

<PAGE>

                                      -13-

          "INELIGIBLE SECURITIES" means Securities which may not be underwritten
or dealt in by member banks of the Federal Reserve System under Section 16 of
the Banking Act of 1993 (12 U.S.C. Section 24, Seventh), as amended.

         "INTEREST ADJUSTMENT DATE" means (i) as to any Prime Rate Loan to be
converted to a Libor Loan the Business Day elected by Borrower in its applicable
Interest Rate Election, but being not less than three (3) Business Days after
the receipt by the Agent before 12:00 o'clock P.M. on a Business Day of an
Interest Rate Election electing the Libor Rate as the interest rate on such
Loan; and (ii) as to any Libor Loan, the last Business Day of the Interest
Period pertaining to such Libor Loan.

         "INTEREST EXPENSE" means, with respect to any fiscal quarter, the
aggregate consolidated amount required to be accrued by Borrower and any
Subsidiaries in such fiscal quarter for interest, fees , charges and expenses,
however characterized, on its Indebtedness, including, without limitation, all
such interest, fees, charges and expenses required to be accrued with respect to
Indebtedness under the Financing Documents, all determined in accordance with
GAAP.

         "INTEREST PERIOD" means:

         With respect to each Libor Loan:

                  (i) initially, the period commencing on the date of such Libor
         Loan and ending one, two, three or six or such greater number of months
         thereafter as may be acceptable to all of the Lenders and as Borrower
         may elect in the applicable Interest Rate Election and subject to
         SECTION 2.9; and

                  (ii) thereafter, each period commencing on the last day of the
         immediately preceding Interest Period applicable to such Libor Loan and
         ending one, two, three or six or such greater number of months
         thereafter as may be acceptable to all of the Lenders and as Borrower
         may elect in the applicable Interest Rate Election and subject to
         SECTION 2.9;

         PROVIDED THAT clauses (i) and (ii) of this definition are subject to
         the following:

         (A) any Interest Period (other than an Interest Period determined
pursuant to clause (C) below) which would otherwise end on a day which is not a
Business Day shall be extended to the next succeeding Business Day unless such
Business Day falls in another calendar month, in which case such Interest Period
shall end on the immediately preceding Business Day;

         (B) any Interest Period which begins on the last Business Day of a
calendar month (or on a day for which there is no numerically corresponding day
in the calendar month at the end of such Interest Period) shall, subject to
clause (C) below, end on the last Business Day of a calendar month; and

<PAGE>

                                      -14-

         (C) for the Term Loan, no Interest Period shall end after the Term Loan
Repayment Date and for the Revolving Credit Loan, no Interest Period shall end
after the Revolving Credit Repayment Date; and

         (D) with respect to all Libor Loans, no more than three Interest
Periods may be in effect at any time.

         "INTEREST RATE ELECTION" means Innoveda's irrevocable telecopied or
telephonic notice of election, which shall be promptly confirmed by a written
notice of election that Effective Prime or the Libor Rate shall apply to all or
any portion of the Loans, which shall, subject to this Agreement, be effective
on the next Interest Adjustment Date, such telecopied or telephonic notice and
written confirmation thereof to be in the form of EXHIBIT 1.4 and to be received
by the Agent prior to 12:00 o'clock P.M. on a Business Day and at least three
(3) Business Days prior to an Interest Adjustment Date in the case of a Libor
Loan, and by 12:00 p.m. on an Interest Adjustment Date in the case of a Prime
Rate Loan or four (4) Business Days in the case of an Interest Rate Election as
to which the consent of the Lenders is required), each such Interest Rate
Election, subject to the terms of this Agreement to apply to the Advance or the
Loan referred to in such Interest Rate Election or to effect a change in the
interest rate on the applicable portion of the Loans then outstanding, as
applicable, with respect to which such Interest Rate Election was made, such
change to occur on the Interest Adjustment Date next succeeding receipt of such
Interest Rate Election by the Agent. Any Interest Rate Election received by the
Agent after 12 o'clock P.M. on a Business Day shall be deemed, for all purposes
of this Agreement to have been received prior to 12 o'clock P.M. on the next
succeeding Business Day.

         "INVESTMENT" means any investment in any Person whether by means of a
purchase of capital stock, notes, bonds, debentures or other evidences of
Indebtedness and/or by means of a capital or partnership contribution, loan,
deposit, advance or other means, excluding amounts due from customers for
services or products delivered or sold in the ordinary course of business.

         "LENDER" means Fleet, or any financial institution which hereafter
becomes a party hereto pursuant to the terms of SECTION 9.10, each in their
individual capacity, and "Lenders" means Fleet and each of such financial
institutions.

         "LETTER OF CREDIT" means an irrevocable stand-by or commercial letter
of credit issued by the Agent for the account of Borrower pursuant to a Letter
of Credit Agreement subject to and in accordance with this Agreement.

         "LETTER OF CREDIT AGREEMENT" means an application and agreement for
stand-by or commercial letter of credit in such form as may at any time be
customarily required by the Agent for its issuance of stand-by or commercial
letters of credit.

         "LEVERAGE RATIO" means the ratio of (i) consolidated total Indebtedness
for Borrowed Money of Borrower and its Subsidiaries on a consolidated basis as
of the last day of such fiscal quarter to (ii) consolidated EBITDA for the
rolling four Borrower fiscal quarter period consisting

<PAGE>

                                      -15-

of such fiscal quarter and the three immediately preceding Borrower fiscal
quarters, which for Borrower's fiscal periods ending prior to June 30, 2000
shall be based on PRO FORMA Results.

         "LIBOR LOAN" means any portion of any Loan bearing interest at the
Libor Rate.

         "LIBOR RATE" means, for any Interest Period, the Adjusted Libor Rate in
effect on the first day of such Interest Period (subject to adjustment as
provided in the definition of Adjusted Libor Rate) plus the Applicable Margin
for Libor Loans from time to time in effect.

         "LIEN" means any mortgage, pledge, hypothecation, assignment, deposit
arrangement, encumbrance, lien (statutory or other) or other security agreement
or preferential arrangement of any kind or nature whatsoever (including without
limitation any conditional sale or other title retention agreement and any
Capitalized Lease Obligation) having substantially the same economic effect as
any of the foregoing and the filing of any financing statement under the
applicable Uniform Commercial Code or comparable law of any jurisdiction in
respect of any of the foregoing.

         "LOANS" and "LOAN" means at any time the outstanding principal amount
of Indebtedness owed to the Lenders or to any Lender, as the context may require
pursuant to this Agreement.

         "MAJORITY LENDERS" means Lenders holding an aggregate Pro Rata Share of
the outstanding principal balance of the Loans in an amount equal to or in
excess of 51.0% of the total outstanding principal balance of the Loans and if
there is no outstanding principal balance of the Loans, Lenders having at least
51.0% of the Commitment.

         "MATERIAL ADVERSE EFFECT" means material adverse effect on (i) the
ability of Innoveda, or Innoveda and its Subsidiaries taken as a whole, to
fulfill any of their respective obligations under any of the Financing
Documents, or (ii) the Business Condition of Innoveda, or Innoveda and its
Subsidiaries taken as a whole.

         "MATERIAL FOREIGN SUBSIDIARY" means a Foreign Subsidiary with total
assets of U.S$2,000,000 as at the end of any fiscal quarterof the Borrower, or
more, or ten (10) or more employees, independent contractors or other
consultants excluding sales, sales and customer support, and administrative
personnel.

          "MATERIAL FOREIGN SUBSIDIARY SECURITY DOCUMENTS" means the documents
required by SECTION 5.1.25.

          "MULTIEMPLOYER PLAN" means a multiemployer plan as defined in Section
4001(a)(3) of ERISA.

         "NET AMOUNT OF ELIGIBLE DOMESTIC RECEIVABLES" means the outstanding
amount of Eligible Domestic Receivables less the aggregate amount attributable
to all returns, rejections, disputes, credits and other adjustments specifically
related thereto, and all contras and offsets, whether asserted or unasserted of
which Borrower has actual knowledge.

<PAGE>

                                      -16-

         "NET AMOUNT OF ELIGIBLE FOREIGN RECEIVABLES" means the outstanding
amount of Eligible Foreign Receivables less the aggregate amount attributable to
all returns, rejections, disputes, credits and other adjustments specifically
related thereto, and all contras and offsets, whether asserted or unasserted of
which Borrower has actual knowledge

         "NET INCOME" means, for any fiscal period, the net after tax income
(loss) of Innoveda and its Subsidiaries for such period determined on an accrual
and consolidated basis in accordance with GAAP.

          "NOTE" means any promissory note of Borrower payable to the order of a
Lender and substantially in the form of EXHIBIT 1.5 or EXHIBIT 1.6 and
evidencing all or a portion of the Loan and "Notes" means all of the Notes,
collectively.

         "OBLIGATIONS" mean any and all Indebtedness, obligations and
liabilities of Innoveda and/or any Subsidiaries under any of the Financing
Documents to any one or more of the Lenders and/or the Agent of every kind and
description, absolute or contingent, due or to become due, whether for payment
or performance, now existing or hereafter arising, including, without
limitation, all Loans, interest, taxes, fees, charges, and expenses under the
Financing Documents and attorneys' fees chargeable to Borrower and/or any
Subsidiaries or incurred by any of the Lenders and/or the Agent under any of the
Financing Documents.

         "OFFICER'S CERTIFICATE" means a certificate signed by an Authorized
Representative and delivered to the Agent on behalf of the Lenders.

         "PADS ACQUISITION" means the acquisition by Innoveda of PADS Software,
Inc. consistent with the terms of the letter dated July 12, 2000 provided by
Fleet to Viewlogic evidencing Fleet's consent thereto.

         "PBGC" means the Pension Benefit Guaranty Corporation established
pursuant to subtitle A of Title IV of ERISA.

          "P.M." means a time from and including 12 o'clock noon on any Business
Day to the end of such Business Day using Eastern Standard (Daylight Savings)
time.

         "PERMITTED ENCUMBRANCES" means each Lien granted pursuant to any of the
Security Documents, those Liens, security interests and defects in title
permitted under SECTION 5.2.1 and those Liens listed on EXHIBIT 1.8 hereto.

         "PERSON" means an individual, corporation, partnership, limited
liability company, joint venture, trust, or unincorporated organization, or a
government or any agency or political subdivision thereof.

         "PLAN" means an employee benefit plan as defined in Section 3(3) of
ERISA maintained for employees of Borrower or any Commonly Controlled Entity.

<PAGE>

                                      -17-

         "POST-CLOSING LETTER" means that certain letter agreement between
Borrower and the Agent dated the Closing Date and listing certain post-closing
actions to be completed by Borrower.

         "PREMISES" has the meaning assigned to such term in SECTION 4.1.20.1.

         "PRIME RATE" means the higher of (i) the floating rate of interest per
annum designated from time to time by the Agent as being its "prime rate" of
interest, such interest rate to be adjusted on the effective date of any change
thereof by the Agent, it being understood that such rate of interest may not be
the lowest rate of interest from time to time charged by the Agent and (ii) the
Federal Funds Rate plus one-half percent (.50%), such interest rate to be
adjusted on the effective date of any change thereof by the Federal Reserve Bank
of New York.

         "PRIME RATE LOAN(S)" means any portion of the Loans bearing interest at
Effective Prime.

         "PRO FORMA RESULTS" means for fiscal periods ending on or prior to
January 1, 2000 the combined results of Summit and Viewlogic, and for the fiscal
quarter ending April 1, 2000, the results of operations of Innoveda as reported
in its financial statements filed with the Securities and Exchange Commission
for the applicable period.

         "PRO RATA SHARE" means (i) with respect to the Commitment, each
Lender's percentage share of the Commitment as set forth immediately opposite
such Lender's name on EXHIBIT 1.9, and (ii) with respect to the Loans, each
Lender's percentage share of the aggregate outstanding principal balance of the
Loans and "Pro Rata Shares" means such percentage shares of the Lenders.

         "QUICK RATIO" means the ratio of (i) Cash Equivalent Investments PLUS
the aggregate outstanding amount of Borrower's accounts receivable to (ii)
Current Liabilities less Deferred Revenue PLUS all Obligations not included in
current liabilities in accordance with GAAP].

         "RECEIVABLE" means any right to payment from an account receivable
obligor arising from the sale of goods or services or the licensing of
intellectual property rights by Borrower in the ordinary course of business.

         "REFERENCE LENDER(S)" means the Agent unless the Agent resigns said
responsibility, at which time and thereafter such term means one or two Lenders
selected by the Agent in its discretion from time to time as a reference lender
for purposes of determining the Adjusted Libor Rate.

         "REPORTABLE EVENT" shall have the meaning assigned to that term in
Section 4043 of ERISA for which the requirement of 30 days' notice to the PBGC
has not been waived by the PBGC.

<PAGE>

                                      -18-

         "REQUEST" means a written request for the Loans in the form of EXHIBIT
1.10, received by the Agent on behalf of the Lenders from Borrower in accordance
with this Agreement, specifying the date on which Borrower desires such Loans
and the disbursement instructions of Borrower with respect thereto.

         "REVOLVING CREDIT LOAN" means the revolving credit loans to be made by
the Lenders to Borrower from time to time in the maximum outstanding principal
amount of the Revolving Credit Loan Commitment, all subject and pursuant to
SECTION 2.1.0.

         "REVOLVING CREDIT LOAN COMMITMENT" means the Lenders' several
commitments to make Revolving Credit Loans to Borrower in accordance with
Section 2.1.0 and this Agreement and in the maximum outstanding amount of each
Lender's Pro Rata Share of $6,000,000, or , on any date on which the aggregate
outstanding amount of Revolving Credit Loans exceeds, or after giving effect to
any Request would exceed, $2,000,000, the lesser of (i) $6,000,000 and (ii) the
Borrowing Base, as such commitment may be reduced pursuant to SECTION 2.6.4.

         "REVOLVING CREDIT NOTE" means each revolving credit note of Borrower,
payable to the order of a Lender in the form of EXHIBIT 1.5 hereto evidencing
the Indebtedness of Borrower to such Lender with respect to the Revolving Credit
Loan.

         "REVOLVING CREDIT REPAYMENT DATE" means the earlier to occur of (i)
September 30, 2003 and (ii) such earlier date on which the Revolving Credit Loan
becomes due and payable pursuant to the terms hereof.

         "SECTION" means, when followed by a number, the Section or subSection
of this Agreement bearing that number.

         "SECTION 20 SUBSIDIARY" means a subsidiary of the bank holding company
controlling any Lender, which subsidiary has been granted authority by the
Federal Reserve Board to underwrite and deal in certain Ineligible Securities.

         "SECURITY DOCUMENTS" means any and all documents, instruments and
agreements now or hereafter providing security for the Loans and any other
Indebtedness of Innoveda or any Subsidiary to any of the Lenders and/or the
Agent, including without limitation the following documents, instruments and
agreements between the Agent and Innoveda or any Subsidiary: any mortgages on
and collateral assignments of real property interests (fee, leasehold and
easement) of Borrower and any Subsidiary granting Liens thereon; landlord lien
waivers and consents as may be reasonably requested by the Agent; security
agreements granting first Liens on all Innoveda's and any Subsidiary's fixtures
and tangible and intangible personal property; Borrower; collateral assignments
of Innoveda's and any Subsidiary's contracts, licenses, permits, easements and
leases; collateral assignments of Innoveda's and any Subsidiary's copyrights;
conditional assignments of Innoveda's and any Subsidiary's trademarks and
patents; any Subordination Agreement; the software escrow agreement referred to
in SECTION 5.1.24; any guaranty by a Subsidiary; any pledge of the capital stock
or other equity interests of any Subsidiary; casualty and liability insurance
policies providing coverage to the Agent for the

<PAGE>

                                      -19-

benefit of the Lenders; UCC-1 financing statements or similar filings perfecting
the above-referenced security interests, pledges and assignments, all as
executed, delivered to and accepted by the Agent on or prior to the Closing Date
or subsequent to the Closing Date as may be required by this Agreement, as any
of the foregoing may be amended in writing by the Agent and any other party or
parties thereto.

         "SINGLE EMPLOYER PLAN" means any Plan as defined in Section
4001(a)(15) of ERISA.

         "SOLVENT" as applied to any Person at any date shall mean that on and
as of such date (a) the fair value of the property of such Person is greater
than the total amount of liabilities, including, without limitation, contingent
liabilities of such Person, (b) the present fair salable value of the assets of
such Person is not less than the amount that will be required to pay the
probable liability of such Person on its debts as they become absolute and
matured, (c) such Person does not intend to, and does not believe that it will,
incur debts or liabilities beyond such Person's ability to pay as such debts and
liabilities mature and (d) such Person is not engaged in business or a
transaction, and is not about to engage in business or a transaction, for which
such Person's property would constitute an unreasonably small capital. The
amount of contingent liabilities on and as of any date shall be computed as the
amount that, in the light of all the facts and circumstances existing on and as
of such date, represents the amount that can reasonably be expected to become an
actual or matured liability. For purposes of this definition, "PERSON" shall
mean, where so required by the context in which the term "Solvent" appears, such
Person and its Subsidiaries taken as a whole.

         "SPROUT GROUP" means the group of equity investors in Borrower
identified on EXHIBIT 1.1 hereto.

         "SUBSIDIARY" means any corporation or entity other than Innoveda of
which more than 50% of the outstanding capital stock or voting interests or
rights having ordinary voting power to elect a majority of the board of
directors or other managers of such entity (irrespective of whether or not at
the time capital stock or voting interests or rights of any other class or
classes of such Person shall or might have voting power upon the occurrence of
any contingency) is at the time directly or indirectly owned by Innoveda or by
Innoveda and/or one or more Subsidiaries or the management of which corporation
or entity is under control of Innoveda and/or any other Subsidiary, directly or
indirectly through one or more Persons and any other Person which, under GAAP,
should at any time for financial reporting purposes be consolidated or combined
with Innoveda and/or any other Subsidiary.

         "TERM LOAN" means the term loan in the aggregate outstanding principal
amount of $10,000,000 to be maintained by the Lenders pursuant to SECTION 2.1.1
hereof.

         "TERM NOTE" means a term note of Borrower payable to the order of a
Lender in the form of EXHIBIT 1.6 hereto evidencing the Indebtedness of Borrower
to such Lender with respect to the Term Loan.

<PAGE>

                                      -20-

         "TERM LOAN REPAYMENT DATE" means the earlier to occur of (i) March 31,
2003 and (ii) such earlier date on which the Term Loan becomes due and payable
pursuant to the terms hereof.

         "TOTAL DEBT SERVICE" means, at any date of determination, the sum of
(i) consolidated interest expense and (ii) scheduled and mandatory principal
payments for the fiscal period in question due on account of any consolidated
Indebtedness of Borrower, but excluding any mandatory payments of principal
required pursuant to SECTIONS 2.6.1.2, 2.6.1.3, 2.6.1.4 and 2.6.1.5.

         "UNUSED FEES" has the meaning assigned to such term in SECTION 2.2.2.

         SECTION 1.2. ACCOUNTING TERMS. All accounting terms not specifically
defined herein shall be construed in accordance with GAAP, calculations of
amounts for the purposes of calculating any financial covenants or ratios
hereunder shall be made in accordance with GAAP applied on a basis consistent
with those used in Innoveda's consolidated financial statements referred to in
SECTION 4.1.5 (other than departures therefrom not material in their impact),
and all financial data submitted pursuant to this Agreement shall be prepared in
accordance with GAAP (except, in the case of unaudited financial statements, the
absence of footnotes and that such statements are subject to changes resulting
from year-end adjustments made in accordance with GAAP).

         SECTION 1.3. OTHER TERMS. References to "Articles", "Sections",
"subsections" and "Exhibits" shall be to Sections, subsections and Exhibits and
of this Agreement unless otherwise specifically provided. In this Agreement,
"hereof," "herein," "hereto," "hereunder" and the like mean and refer to this
Agreement as a whole and not merely to the specific section, paragraph or clause
in which the respective word appears; words importing any gender include the
other genders; references to "writing" include printing, typing, lithography and
other means of reproducing words in a tangible visible form; the words
"including," "includes" and "include" shall be deemed to be followed by the
words "without limitation"; references to agreements and other contractual
instruments shall be deemed to include subsequent amendments, assignments, and
other modifications thereto, but only to the extent such amendments, assignments
and other modifications are not prohibited by the terms of this Agreement or any
other Financing Document; references to Persons include their respective
permitted successors and assigns or, in the case of governmental Persons,
Persons succeeding to the relevant functions of such Persons; and all references
to statutes and related regulations shall include any amendments of same and any
successor statutes and regulations.

<PAGE>

                                      -21-

                                   ARTICLE II

                          AMOUNT AND TERMS OF THE LOANS

     SECTION 2.1.  THE LOANS.

               SECTION 2.1.0. THE REVOLVING CREDIT LOANS. Each of the Lenders
severally agrees, subject to the terms and conditions of this Agreement, to make
Advances of Revolving Credit Loans to Borrower from time to time after receipt
by the Agent from time to time before the Revolving Credit Repayment Date of,
and at the times provided for in, a Request and an Interest Rate Election from
Borrower in accordance with this Agreement, during the period commencing on the
Closing Date and ending on the Business Day immediately preceding the Revolving
Credit Repayment Date, in an aggregate principal amount at any one time
outstanding not to exceed such Lender's Pro Rata Share of the Revolving Credit
Loan Commitment less such Lender's Pro Rata Share of the aggregate outstanding
stated amount of any Letters of Credit or Letter of Credit Agreements and any
unreimbursed amounts drawn thereunder. The outstanding principal balance of the
Revolving Credit Loans shall be repaid on the Revolving Credit Repayment Date.

     Promptly after receipt of a Request and Interest Rate Election, Agent shall
notify each Lender by telephone, telex or telecopy of the proposed borrowing.
Subject to the immediately preceding paragraph, each Lender agrees that after
its receipt of notification from Agent of Agent's receipt of a Request and
Interest Rate Election, such Lender shall send its Pro Rata Share (or such
portion thereof as may be necessary to provide Agent with such Pro Rata Share in
Dollars and in immediately available funds, without consideration or use of any
contra accounts of any Lender) of the requested Loan by wire transfer to Agent
so that Agent receives such Pro Rata Share in Dollars and in immediately
available funds not later than 12:00 P.M. (Boston, Massachusetts time) on the
first day of the Interest Period for any such requested Libor Loan and on the
Business Day for such Advance set forth in Borrower's Request for any such
requested Prime Rate Loan, and Agent shall advance funds to Borrower by
depositing such funds in Borrower's account with the Agent upon Agent's receipt
of such Pro Rata Shares in the amount of the Pro Rata Shares of such Loan in
Agent's possession. Unless Agent shall have been notified by any Lender (which
notice may be telephonic if confirmed promptly in writing) prior to the first
day of the Interest Period in respect of any Loan which such Lender is obligated
to make under this Agreement, that such Lender does not intend to make available
to Agent such Lender's Pro Rata Share of such Loan on such date, Agent may
assume that such Lender has made such amount available to Agent on such date and
Agent in its sole discretion may, but shall not be obligated to, make available
to Borrower a corresponding amount on such date. If such corresponding amount is
not in fact made available to Agent by such Lender, Agent shall be entitled to
recover such corresponding amount from such Lender promptly upon demand by Agent
together with interest thereon, for each day from such date until the date such
amount is paid to Agent, at the Federal Funds Rate for three (3) Business Days
and thereafter at the interest rate on the Loan in question. If such Lender does
not pay such corresponding amount forthwith upon Agent's demand therefor, Agent
shall promptly notify Borrower and Borrower shall promptly pay such
corresponding amount to Agent. Nothing contained in this Section shall be

<PAGE>

                                      -22-

deemed to relieve any Lender from its obligation to fulfill its obligations
hereunder or to prejudice any rights which Borrower may have against any Lender
as a result of any default by such Lender hereunder.

     Throughout the term of the Revolving Credit Loans, the Revolving Credit
Loan Commitment may, in Fleet's discretion, be made available to Borrower prior
to the Revolving Credit Repayment Date by issuance of Letters of Credit having
an expiration date prior to the earlier to occur of (a) the first anniversary
date of the date of issuance of any such Letter of Credit or (b) three (3)
Business Days prior to the Revolving Credit Repayment Date, reasonably promptly
after submission by Borrower to the Agent of a Letter of Credit Agreement, duly
completed and executed by Borrower and otherwise in form and substance
satisfactory to Fleet. The Borrower shall pay upon demand by the Agent such
usual and customary fees and costs as Fleet may from time to time establish for
issuance, transfer, amendment and negotiation of each Letter of Credit and shall
pay to the Agent for Fleet's account upon issuance of any Letter of Credit an
annual Letter of Credit fee in an amount equal to an amount determined by Fleet
based on Fleet's usual and customary fees charged for Letters of Credit similar
to such Letter of Credit. In the event that Borrower shall fail to reimburse
Fleet under any Letter of Credit or Letter of Credit Agreement, and any
outstanding Indebtedness of Borrower relating thereto, Fleet shall promptly
notify the Agent, and the Agent shall, in turn, promptly notify each Lender of
the unreimbursed amount together with accrued interest thereon, and each Lender
agrees to purchase, and it shall be deemed to have purchased, a participation in
such Letter of Credit or Letter of Credit Agreement and such indebtedness in an
amount equal to its Pro Rata Share of the unpaid amount together with unpaid
interest thereon. Upon one (1) Business Day's notice from the Agent, each Lender
shall deliver to the Agent an amount equal to its respective participation in
same day funds, at the place and on the date and by the time notified by the
Agent. The obligation of each Lender to deliver to the Agent an amount equal to
its respective participation pursuant to the foregoing sentence shall be
absolute and unconditional and such remittance shall be made notwithstanding the
occurrence or continuation of an Event of Default or the failure to satisfy any
condition set forth in Article III of this Agreement.

          SECTION 2.1.1. TERM LOANS Each of the Lenders severally agrees,
subject to the terms and conditions of this Agreement, to maintain a Term Loan
to Borrower in the amount of its respective Pro Rata Share of $10,000,000. Until
such time as the principal outstanding amount of the Term Loan is paid in full,
commencing September 30, 2000 and on the last Business Day of each calendar
quarter thereafter, Borrower shall pay to the Agent for the ratable benefit of
the Lenders the principal amount set forth below:

<TABLE>
<CAPTION>
--------------------------------------- ---------------------------------------
        Calendar Quarters Ending                  Quarterly Payment Amount

--------------------------------------- ---------------------------------------
<S>                                     <C>

--------------------------------------- ---------------------------------------
                 9/30/00                                  $750,000
--------------------------------------- ---------------------------------------
           12/31/00 - 9/30/01                             $875,000
--------------------------------------- ---------------------------------------
           12/31/01 - 9/30/02                            $1,000,000
--------------------------------------- ---------------------------------------
                12/31/02                                 $1,375,000
--------------------------------------- ---------------------------------------
                 3/31/03                                  $375,000
--------------------------------------- ---------------------------------------
</TABLE>

<PAGE>

                                      -23-

          SECTION 2.2. INTEREST AND FEES ON THE LOANS.

               SECTION 2.2.1. INTEREST; DEFAULT RATE OF INTEREST; SUSPENSION OF
LIBOR LOANS; ETC. . Interest shall accrue on the Loans at Effective Prime or the
Libor Rate for each of the Loans' Interest Periods in accordance with Borrower's
Interest Rate Elections for the Loans subject to and in accordance with the
terms and conditions of this Agreement and the Note(s); provided that if a
Default or an Event of Default exists and is continuing, no Interest Rate
Election electing the Libor Rate shall be effective and all Loans shall bear
interest, payable on demand, at Effective Prime PLUS, so long as an Event of
Default exists and is continuing, two percent (2%) above the Applicable Margin
(the "DEFAULT RATE"); all of the foregoing being applicable until such Default
or Event of Default is cured or waived and, as to availability of Libor Loans,
an Interest Rate Election electing the Libor Rate for such Loan or portion
thereof which is effective in accordance with this Agreement is submitted to the
Agent; and provided further that Borrower shall submit Interest Rate Elections
so that on any date on which under SECTION 2.1.1 a regularly scheduled payment
of principal of the Term Loans is to be made, at least the amount of the Term
Loans to be so repaid is bearing interest at Effective Prime and/or such payment
date is an Interest Adjustment Date for outstanding Libor Loans in such amount
of the Term Loans. The Borrower shall pay such interest to the Agent for the pro
rata account of each Lender in arrears on the Loans (including without
limitation Libor Loans) outstanding from time to time, such payments to be made,
with respect to Libor Loans with Interest Periods of three months or less on
each Interest Adjustment Date for such Loans, and with respect to Libor Loans
with Interest Periods of more than three months and with respect to Prime Rate
Loans, quarterly on the last Business Day of each calendar quarter of each year.
In the event no Interest Rate Election has been made by Borrower with respect to
any Loan or Advance (or an Interest Rate Election shall have expired without an
effective substitute Interest Rate Election), Effective Prime shall be the rate
applicable to such Loan or Advance. All provisions of each Note and any other
agreements between Borrower and the Lenders are expressly subject to the
condition that in no event, whether by reason of acceleration of maturity of the
Indebtedness evidenced by any Note or otherwise, shall the amount paid or agreed
to be paid to the Lenders which is deemed interest under applicable law exceed
the maximum permitted rate of interest under applicable law (the "MAXIMUM
PERMITTED RATE"), which shall mean the law in effect on the date of this
Agreement, except that if there is a change in such law which results in a
higher Maximum Permitted Rate, then each Note shall be governed by such amended
law from and after its effective date. In the event that fulfillment of any
provision of any Note, or this Agreement or any document, instrument or
agreement providing security for any Note results in the rate of interest
charged under any Note being in excess of the Maximum Permitted Rate, the
obligation to be fulfilled shall automatically be reduced to eliminate such
excess. If, notwithstanding the foregoing, any Lender receives an amount which
under applicable law would cause the interest rate under any Note to exceed the
Maximum Permitted Rate, the portion thereof which would be excessive shall
automatically be deemed a prepayment of and be applied to the unpaid principal
balance of such Note to the extent of then outstanding Prime Rate Loans and not
a payment of interest and to the extent said excessive portion exceeds the
outstanding principal amount of Prime Rate Loans, said excessive portion shall
be repaid to Borrower.

<PAGE>

                                      -24-

               SECTION 2.2.2. FEES. On the last Business Day of each March,
June, September and December commencing June 30, 2000 and continuing through the
earlier of (i) the Revolving Credit Repayment Date and (ii) the date that all
amounts owed hereunder have been paid and all Commitments to make Revolving
Credit Loans have terminated, Borrower shall pay to the Agent for the pro rata
account of each Lender, a fee (the "UNUSED FEE") in an amount equal to .50% per
annum of the amount, if any, by which the average actual daily amount of the
Revolving Credit Loan Commitment for the quarterly period just ended exceeds the
sum of the average of the actual daily outstanding principal balances of the
Revolving Credit Loans PLUS the average of the actual daily aggregate amount of
the outstanding stated amount of any Letter of Credit or Letter of Credit
Agreement, and any unreimbursed amounts thereunder.

               SECTION 2.2.3. INCREASED COSTS - CAPITAL. If, after the date
hereof, any Lender shall have reasonably determined that the adoption after the
date hereof of any applicable law, governmental rule, regulation or order
regarding capital adequacy of banks or bank holding companies, or any change
therein, or any change in the interpretation or administration thereof by any
governmental authority, central bank or comparable agency charged with the
interpretation or administration thereof, or compliance by such Lender or such
Lender's holding company with any policy, guideline, directive or request
regarding capital adequacy (whether or not having the force of law and whether
or not failure to comply therewith would be unlawful) of any such authority,
central bank or comparable agency, has or would have the effect of reducing the
rate of return on the capital of such Lender or such Lender's holding company as
a consequence of the obligations hereunder of such Lender to a level below that
which such Lender could have achieved but for such adoption, change or
compliance (taking into consideration the policies of such Lender or such
Lender's holding company with respect to capital adequacy immediately before
such adoption, change or compliance and assuming that the capital of such Lender
or such Lender's holding company was fully utilized prior to such adoption,
change or compliance) by an amount reasonably deemed by such Lender to be
material, then such Lender shall notify the Agent and Borrower thereof and
Borrower shall pay to the Agent for the account of such Lender from time to time
as specified by such Lender such additional amounts as shall be sufficient to
compensate such Lender for such reduced return, each such payment to be made by
Borrower within ten (10) Business Days after each demand by such Lender;
provided that Borrower shall have no liability to pay such costs accruing from
and after the 60th day prior to the date of each such demand. A certificate in
reasonable detail of one of the officers of such Lender describing the event
giving rise to such reduction and setting forth the amount to be paid to such
Lender hereunder and a computation of such amount shall accompany any such
demand and shall, in the absence of manifest error, be presumptively correct. In
determining such amount, such Lender shall act reasonably and will use any
reasonable averaging and attribution methods. If Borrower shall, as a result of
the requirements of this SECTION 2.2.3 above, be required to pay any Lender the
additional costs referred to above and Borrower, in its sole discretion, shall
deem such additional amounts to be material, Borrower shall have the right to
substitute another bank satisfactory to the Agent for such Lender which has
certified the additional costs to Borrower, and the Agent shall use reasonable
efforts at no cost to the Agent to assist Borrower to locate such substitute
bank. Any such substitution shall take place in accordance with SECTION 9.11 and
shall otherwise be on terms and conditions reasonably satisfactory to the Agent,
and until such time as such substitution shall be consummated, Borrower shall
continue to pay such additional

<PAGE>

                                      -25-

costs. Upon any such substitution, Borrower shall pay or cause to be paid to the
Lender that is being replaced, all principal, interest (to the date of such
substitution) and other amounts owing hereunder to such Lender and such Lender
will be released from liability hereunder.

     SECTION 2.3. NOTATIONS. At the time of (i) the making of each Advance
evidenced by any Note, (ii) each change in the interest rate under any Note
effected as a result of an Interest Rate Election; and (iii) each payment or
prepayment of any Note, each Lender may enter upon its records an appropriate
notation evidencing (a) such Lender's Pro Rata Share of the Loans and (b) the
interest rate and Interest Adjustment Date applicable thereto or (c) such
payment or prepayment (voluntary or involuntary) of principal and (d) in the
case of payments or prepayments (voluntary or involuntary) of principal, the
portion of the applicable Loan which was paid or prepaid. No failure to make any
such notation shall affect Borrower's unconditional obligations to repay the
Loans and all interest, fees and other sums due in connection with this
Agreement and/or any Note in full, nor shall any such failure, standing alone,
constitute grounds for disproving a payment of principal by Borrower. However,
in the absence of manifest error, such notations and each Lender's records
containing such notations shall constitute presumptive evidence of the facts
stated therein, including, without limitation, the outstanding amount of such
Lender's Pro Rata Share of the Loans and all amounts due and owing to such
Lender at any time. Any such notations and such Lender's records containing such
notations may be introduced in evidence in any judicial or administrative
proceeding relating to this Agreement, the Loans or any Note.

     SECTION 2.4. COMPUTATION OF INTEREST. Interest due under this Agreement and
any Note shall be computed on the basis of a year of 360 days for the actual
number of days elapsed.

     SECTION 2.5. TIME OF PAYMENTS AND PREPAYMENTS IN IMMEDIATELY AVAILABLE
FUNDS.

          SECTION 2.5.1. TIME. All payments and prepayments of principal, fees,
interest and any other amounts owed from time to time under this Agreement
and/or under each Note shall be made to the Agent for the pro rata account of
each Lender at the address referred to in SECTION 9.6 in Dollars and in
immediately available funds prior to 12:00 o'clock P.M. on the Business Day that
such payment is due, provided that Borrower hereby authorizes and instructs the
Agent to charge against Borrower's accounts with the Agent on each date on which
a payment is due hereunder and/or under any Note and on any subsequent date if
and to the extent any such payment is not made when due an amount up to the
principal, interest and fees due and payable to the Lenders, the Agent or any
Lender hereunder and/or under any Note and such charge shall be deemed payment
hereunder and under the Note(s) in question to the extent that immediately
available funds are then in such accounts. The Agent shall use reasonable
efforts in accordance with the Agent's customary procedures to give subsequent
notice of any such charge to Borrower, but the failure to give such notice shall
not affect the validity of any such charge. To the extent that immediately
available funds are then in such accounts, the failure of the Agent to charge
any such account or the failure of the Agent to charge any such account prior to
12 o'clock P.M. shall not be basis for an Event of Default under SECTION 6.1.1
and any amount due on the Loans on such date shall be deemed paid; provided that
the Agent shall have the right to charge any such account on any subsequent date
for such unpaid payment and an Event of Default shall exist if

<PAGE>

                                      -26-

sufficient immediately available funds are not in such accounts on the date the
Agent so charges such account after the expiration of any applicable cure
period. In the event of any charge against Borrower's accounts by the Agent
pursuant to the immediately preceding sentence, the Agent shall use reasonable
efforts to provide notice to Borrower of such charge in accordance with the
Agent's customary procedures, but the failure to provide such notice shall not
in any way be a basis for any liability of the Agent nor shall such failure
adversely affect the validity and effectiveness of any such action by the Agent.
Any such payment or prepayment which is received by the Agent in Dollars and in
immediately available funds after 12 o'clock P.M. on a Business Day shall be
deemed received for all purposes of this Agreement on the next succeeding
Business Day unless the failure by Agent to receive such funds prior to 12
o'clock P.M. is due to Agent's failure to charge the account of Borrower prior
to 12 o'clock P.M., except that solely for the purpose of determining whether a
Default or Event of Default has occurred under SECTION 6.1.1, any such payment
or prepayment, if received by the Agent prior to the close of the Agent's
business on a Business Day, shall be deemed received on such Business Day. All
payments of principal, interest, fees and any other amounts which are owing to
any or all of the Lenders or the Agent hereunder and/or under any of the Notes
that are received by the Agent in immediately available Dollars prior to 12:00
o'clock P.M. on any Business Day shall, to the extent owing to the Lenders other
than the Agent, be sent by wire transfer by the Agent to any such other Lenders
(in each case, without deduction for any claim, defense or offset of any type)
before 3:00 o'clock P.M. on the same Business Day. Each such wire transfer shall
be addressed to each Lender in accordance with the wire instructions set forth
in EXHIBIT 1.9 hereto. The amount of each payment wired by the Agent to each
such Lender shall be such amount as shall be necessary to provide such Lender
with its Pro Rata Share of such payment (without consideration or use of any
contra accounts of any Lender), or with such other amount as may be owing to
such Lender in accordance with this Agreement (in each case, without deduction
for any claim, defense or offset of any type). Each such wire transfer shall be
sent by the Agent only after the Agent has received immediately available
Dollars from or on behalf of Borrower and each such wire transfer shall provide
each Lender receiving same with immediately available Dollars on receipt by such
Lender. Any such payments of immediately available Dollars received by the Agent
after 12:00 o'clock P.M. and before 3:00 o'clock P.M. on any Business Day shall
be forwarded in the same manner by the Agent to such Lender(s) as soon as
practicable on said Business Day, and if any such payments of immediately
available Dollars are received by the Agent after 3:00 o'clock P.M. on a
Business Day, the Agent shall so forward same to such Lender(s) before 10:00
o'clock A.M. on the immediately succeeding Business Day.

          SECTION 2.5.2. SETOFF, ETC.. Regardless of the adequacy of any
collateral for any of the Obligations, upon the occurrence and during the
continuance of any Event of Default, each Lender is hereby authorized at any
time and from time to time, without notice to Borrower (any such notice being
expressly waived by Borrower), to set off and apply any and all deposits
(general or special, time or demand, provisional or final) at any time held and
any other Indebtedness at any time owing by such Lender to or for the credit or
the account of Borrower against any and all of the Obligations due and owing by
Borrower.. Each such Lender agrees to promptly notify Borrower and the Agent
after any such setoff and application; provided that the failure to give such
notice shall not affect the validity of such setoff and application. Promptly
following any notice of setoff received by the Agent from a Lender pursuant to
the foregoing,

<PAGE>

                                      -27-

the Agent shall notify each other Lender thereof. The rights of each Lender
under this SECTION 2.5.2 are in addition to all other rights and remedies
(including, without limitation, other rights of setoff) which such Lender may
have and are subject to SECTION 9.12.

          SECTION 2.5.3. UNCONDITIONAL OBLIGATIONS AND NO DEDUCTIONS. The
Borrower's obligation to make all payments provided for in this Agreement and
the other Financing Documents when due shall be unconditional. Each such payment
shall be made when due without deduction for any claim, defense or offset of any
type, including without limitation any withholdings and other deductions on
account of income or other taxes and regardless of whether any claims, defenses
or offsets of any type exist.

               SECTION 2.5.3.2.

     (a)  Any and all payments by Borrower to or for the account of any Lender
or the Agent hereunder or under any other Financing Document shall be made free
and clear of and without deduction for any and all present or future taxes,
duties, levies, imposts, deductions, charges or withholdings, and all
liabilities with respect thereto, excluding, in the case of each Lender and the
Agent, taxes imposed on its income, and franchise taxes imposed on it, by the
jurisdiction under the laws of which such Lender (or its applicable lending
office) or the Agent (as the case may be) is organized or any political
subdivision thereof, (all such non-excluded taxes, duties, levies, imposts,
deductions, charges, withholdings, and liabilities being hereinafter referred to
as "Taxes"). If Borrower shall be required by law to deduct any Taxes from or in
respect of any sum payable under this Agreement or any other Financing Document
to any Lender or the Agent,(i) the sum payable shall be increased as necessary
so that after making all required deductions (including deductions applicable to
additional sums payable under this SECTION 2.5.3.2) such Lender or the Agent
receives an amount equal to the sum it would have received had no such
deductions been made, (ii) Borrower shall make such deductions, (iii) Borrower
shall pay the full amount deducted to the relevant taxation authority or other
authority in accordance with applicable law, and (iv) Borrower shall furnish to
the Agent, at its address referred to in SECTION 9.6 hereof, the original or a
certified copy of a receipt evidencing payment thereof.

     (b)  In addition, Borrower agrees to pay any and all present or future
stamp or documentary taxes and any other excise or property taxes or charges or
similar levies which arise from any payment made under this Agreement or any
other Financing Document or from the execution or delivery of, or otherwise with
respect to, this Agreement or any other Loan Document (hereinafter referred to
as "Other Taxes").

     (c)  The Borrower agrees to indemnify each Lender and the Agent for the
full amount of Taxes and Other Taxes (including, without limitation, any Taxes
or Other Taxes imposed or asserted by any jurisdiction on amounts payable under
this SECTION 2.5.3.2) paid by such Lender or the Agent (as the case may be) and
any liability (including penalties, interest, and expenses) arising therefrom or
with respect thereto.

<PAGE>

                                      -28-

     (d)  Each Lender organized under the laws of a jurisdiction outside the
United States, on or prior to the date of its execution and delivery of this
Agreement in the case of each Lender listed on the signature pages hereof and on
or prior to the date on which it becomes a Lender in the case of each other
Lender, and from time to time thereafter if requested in writing by Borrower or
the Agent (but only so long as such Lender remains lawfully able to do so),
shall provide Borrower and the Agent with (i) a properly completed Internal
Revenue Service Form 1001 or 4224, as appropriate, or any successor form
prescribed by the Internal Revenue Service, certifying that such Lender is
entitled to benefits under an income tax treaty to which the United States is a
party which reduces the rate of withholding tax on payments of interest or
certifying that the income receivable pursuant to this Agreement is effectively
connected with the conduct of a trade or business in the United States, (ii) a
properly completed Internal Revenue Service Form W-8 or W-9, as appropriate, or
any successor form prescribed by the Internal Revenue Service, certifying that
such Lender is exempt from United States backup withholding, and (iii) any other
form or certificate required by any taxing authority (including any certificate
required by Sections 871(h) and 881(c) of the Internal Revenue Code), certifying
that such Lender is entitled to an exemption from or a reduced rate of tax on
payments pursuant to this Agreement or any of the other Financing Documents.

     (e)  For any period with respect to which a Lender has failed to provide
Borrower and the Agent with the appropriate form pursuant to Section 2.5.3.2(d)
hereof (unless such failure is due to a change in treaty, law, or regulation
occurring subsequent to the date on which a form originally was required to be
provided), such Lender shall not be entitled to indemnification under SECTION
2.5.3.2(a) OR 2.5.3.2(b) hereof with respect to Taxes imposed by the United
States; provided, however, that should a Lender, which is otherwise exempt from
or subject to a reduced rate of withholding tax, become subject to Taxes because
of its failure to deliver a form required hereunder, Borrower shall take such
steps as such Lender shall reasonably request and at such Lender's cost to
assist such Lender to recover such Taxes.

     (f)  If Borrower is required to pay additional amounts to or for the
account of any Lender pursuant to this Section 2.5.3.2, then such Lender will
agree to use reasonable efforts to change the jurisdiction of its applicable
lending office so as to eliminate or reduce any such additional payment which
may thereafter accrue if such change, in the judgment of such Lender, is not
otherwise disadvantageous to such Lender. Alternatively, in the event of such an
additional cost, Borrower shall have the right to substitute another bank
satisfactory to the Agent, and the Agent and such Lender shall use reasonable
efforts at no cost to the Agent and such Lender to assist Borrower to locate and
effect the substitution in favor of such substitute bank. Any such substitution
shall take place in accordance with SECTION 9.11 and shall otherwise be on terms
and conditions reasonably satisfactory to the Agent, and until such time as such
substitution shall be consummated, Borrower shall continue to pay such
additional costs. Upon any such substitution, Borrower shall pay or cause to be
paid to the Lender that is being replaced, all principal, interest (to the date
of such substitution) and other amounts owing hereunder to such Lender and such
Lender will be released from liability hereunder.

     (g)  Within thirty (30) days after the date of any payment of Taxes,
Borrower shall furnish to the Agent the original or a certified copy of a
receipt evidencing such payment.

<PAGE>

                                      -29-

     (h) Without prejudice to the survival of any other agreement of Borrower
hereunder, the agreements and obligations of Borrower contained in this SECTION
2.5.3.2 shall survive until the first anniversary of the Repayment Date.

     (i) If Borrower makes any additional payment to any Lender pursuant to this
SECTION 2.5.3.2 in respect of any Taxes, and such Lender determines that it has
received (i) a refund of such Taxes, or (ii) a credit against, relief or
remission for, or a reduction in the amount of, any tax or other governmental
charge as a result of any deduction or credit for any Taxes with respect to
which it has received payments under this SECTION 2.5.3.2, such Lender shall, to
the extent that it can do so without prejudice to the retention of such refund,
credit, relief, remission or reduction, pay to Borrower such amount as shall be
reasonably determined by such Lender to be solely attributable to the deduction
or withholding of such Taxes. If such Lender later determines that it was not
entitled to such refund, credit, relief, remission or reduction to the full
extent of any payment made pursuant to the first sentence of this SECTION
2.5.3.2(I), Borrower shall upon demand of such Lender promptly repay the amount
of such overpayment. Nothing in this SECTION 2.5.3.2(I) shall be construed as
requiring such Lender to conduct its business or to arrange or alter in any
respect its tax or financial affairs so that it is entitled to receive such a
refund, credit or reduction or as allowing any Person to inspect any records,
including tax returns, of such Lender.

     SECTION 2.6. PREPAYMENT AND CERTAIN PAYMENTS.

          SECTION 2.6.1. MANDATORY PAYMENTS.

               SECTION 2.6.1.1. In addition to each other principal payment
required hereunder, the outstanding principal balances of the Term Loans shall
be repaid on the Term Loan Repayment Date and the outstanding principal balances
of the Revolving Credit Loans shall be repaid on the Revolving Credit Repayment
Date.

               SECTION 2.6.1.2. EXCESS CASH FLOW. On or before the ninetieth
(90th) day after the end of each of Borrower's fiscal years ending after January
1, 2001, if at the end of any such Fiscal Period, the Leverage Ratio is on the
last day of any Borrower fiscal quarter greater than 2.0:1, Borrower shall
prepay to Agent for the accounts of Lenders in accordance with their Pro Rata
Shares an amount of the outstanding principal balances of the Term Loans equal
to (i) fifty percent (50%) of the amount, if any, of Excess Cash Flow for such
Fiscal Period. Such prepayments shall be in addition to any and all other
mandatory and voluntary prepayments required or permitted hereunder and shall be
applied to the principal installments of the Term Loans in the inverse order of
their maturities.

               SECTION 2.6.1.3. In the event that Borrower or any Subsidiary is
entitled to receive, collectively, proceeds from any casualty insurance policies
maintained by any of them on account of any interest of Borrower and/or any
Subsidiary in any property, which proceeds are in an amount in excess of
$250,000 with respect to any occurrence or related series of occurrences in any
12-month period, such proceeds shall be received by the Agent and, to the extent
that such

<PAGE>
                                      -30-

proceeds result from a casualty to property of Borrower and/or any Subsidiary,
so long as no Default or Event of Default exists and is continuing and Borrower
elects to repair, replace or restore such property, such proceeds shall be
released to Borrower subject to reasonable procedures and conditions established
by the Agent to the extent necessary to so repair, replace or restore such
property within 3 months (or as soon as reasonably practicable if such
restoration, replacement or repair is not susceptible to being completed within
3 months) from the date of receipt of such proceeds by the Agent and to the
extent such proceeds are not so used or do not result from such a casualty,
Borrower shall make a prepayment of the Term Loans for the accounts of the
Lenders in accordance with their Pro Rata Shares upon written notice from the
Agent given within ten (10) Business Days following the determination that a
prepayment is due hereunder. All such payments shall be applied to the principal
installments of the Term Loans in the inverse order of their maturities.

               SECTION 2.6.1.4. In the event that Borrower and/or any Subsidiary
sells, assigns or otherwise transfers title to any assets (tangible or
intangible), other than (i) in the ordinary course of its business, or (ii)
assets consisting of the Virsim product line, for aggregate net cash proceeds in
excess of $100,000 in any fiscal year or in excess of $500,000 in the aggregate
since October 2, 1998, Borrower and/or such Subsidiary shall remit 100% of the
net cash proceeds of any sale, assignment or other transfer which are in excess
of such amounts to the Agent for the accounts of the Lenders in accordance with
their Pro Rata Shares to be applied to the principal installments of the Term
Loans in the inverse order of their maturities within 90 days of the date of
Borrower's or any Subsidiary's receipt of such net cash proceeds; provided,
however, that Borrower may sell any asset (tangible or intangible) which is
obsolete, worn-out or no longer used or useful, or to be used, in Borrower's
business and Borrower may use the proceeds of such sale to purchase other assets
(tangible or intangible) which are, or will be, useful or necessary in the
operation of Borrower's business and if, and to the extent, so used, Borrower
will not be required to make a prepayment hereunder.

               SECTION 2.6.1.6. If at any time the aggregate principal amount of
the Revolving Credit Loans plus the aggregate stated amount of any outstanding
Letters of Credit and unreimbursed amounts thereunder shall exceed the Revolving
Credit Loan Commitment, Borrower shall immediately pay to the Agent in
immediately available Dollars the amount of such excess.

               SECTION 2.6.1.7. In the event that any payment or prepayment of a
Libor Loan under this SECTION 2.6.1 is received on a date other than the last
day of an Interest Period, and after applying such payment or prepayment to any
portion of the Term Loans consisting of a Prime Rate Loan, such payment or
prepayment shall be held by the Agent in a separate account and be pledged to
the Agent as collateral for the Obligations of Borrower arising in connection
with the Financing Documents until the last day of the then current Interest
Period, at which time the Agent shall apply such payment or prepayment, for the
account of the Lenders in accordance with their Pro Rata Shares, to the
outstanding Libor Loans, for which such day is an Interest Adjustment Date.

<PAGE>
                                      -31-

               SECTION 2.6.2. VOLUNTARY PREPAYMENTS. All or any portion of the
unpaid principal balance of the Loans (other than portions of any Loans
constituting Libor Loans) may be prepaid at any time, without premium or penalty
(other than amounts due under Section 2.9.5,) by giving the Agent at least 3
days' prior written notice of such prepayment and by a payment to the Agent for
the accounts of the Lenders in accordance with their Pro Rata Shares of such
prepayment in immediately available Dollars by Borrower; provided that each such
partial payment or prepayment of principal of the Loans shall be in a principal
amount of at least $400,000 or an integral multiple of $100,000 in excess
thereof and provided further that each such prepayment of the Term Loans shall
be applied to the principal installments of the Term Loans in the inverse order
of their maturities.

               SECTION 2.6.3. PREPAYMENT OF LIBOR LOANS.Notwithstanding anything
to the contrary contained in any Note or in any other agreement executed in
connection herewith or therewith, Borrower shall be permitted to prepay any
portion of the Loans constituting Libor Loans only in accordance with SECTION
2.9 hereof.

               SECTION 2.6.4. PERMANENT REDUCTION OF COMMITMENT. At Borrower's
option the Commitment and the Revolving Credit Loan Commitment may be
permanently and irrevocably reduced in whole or in part by an amount of at least
$400,000 and to the extent in excess thereof in integral multiples of $100,000
at any time; provided that (i) Borrower gives the Agent written notice of the
exercise of such option at least three (3) Business Days prior to the effective
date thereof, (ii) the aggregate outstanding balance of the Loans, if any, does
not exceed the Commitment and the aggregate outstanding balance of the Revolving
Credit Loans, plus the aggregate outstanding amount of any Letters of Credit or
Letter of Credit Agreement and any unreimbursed drawn amounts thereunder, if
any, does not exceed the Revolving Credit Loan Commitment, both as so reduced in
any such case on the effective date of such reduction and (iii) Borrower is not,
and after giving effect to such reduction, would not be in violation of SECTION
2.6.3. Any such reduction shall concurrently reduce the Dollar amount of each
Lender's Pro Rata Share of the Commitment and the Revolving Credit Loan
Commitment.

     SECTION 2.7. PAYMENT ON NON-BUSINESS DAYS. Whenever any payment to be made
hereunder or under any Note shall be stated to be due on a day other than a
Business Day, such payment may be made on the next succeeding Business Day, and
such extension of time shall in such case be included in the computation of
payment of fees, if any, and interest under this Agreement and under such Note.

     SECTION 2.8. USE OF PROCEEDS. (a) The Borrower shall use the proceeds of
the Revolving Credit Loans for Borrower's working capital needs and for
Investments permitted by SECTION 5.2.12. The Borrower shall obtain any Letters
of Credit solely for working capital and general corporate purposes.

                  (b) No portion of the proceeds of any Loans is to be used,
and no portion of any Letter of Credit is to be obtained, for the purpose of
(a) knowingly purchasing, or providing credit support for the purchase of,
Ineligible Securities from a Section 20 Subsidiary during any period in which
such Section 20 Subsidiary makes a market in such Ineligible

<PAGE>
                                      -32-

Securities, (b) knowingly purchasing, or providing credit support for the
purchase of, during the underwriting or placement period, any Ineligible
Securities being underwritten or privately placed by a Section 20 Subsidiary, or
(c) making, or providing credit support for the making of, payments of principal
or interest on Ineligible Securities underwritten or privately placed by a
Section 20 Subsidiary and issued by or for the benefit of Borrower or any
Subsidiary or other Affiliate of Borrower.

     SECTION 2.9. SPECIAL LIBOR LOAN PROVISIONS. The Libor Loans shall be
subject to and governed by the following terms and conditions:

          SECTION 2.9.1. REQUESTS. Each Request accompanied by an Interest Rate
Election selecting the Libor Rate must be received by the Agent in accordance
with the definition of Interest Rate Election.

          SECTION 2.9.2. LIBOR LOANS UNAVAILABLE. Notwithstanding any other
provision of this Agreement, if, prior to or on the date on which all or any
portion of the Loans is to be made as or converted into a Libor Loan, any of the
Lenders (or the Agent with respect to (ii) below) shall reasonably determine
(which determination shall be conclusive and binding on Borrower), that

          (i) Dollar deposits in the relevant amounts and for the relevant
     Interest Period are not offered to such Lender in the London interbank
     market,

          (ii) by reason of circumstances affecting the London interbank market,
     adequate and reasonable means do not exist for ascertaining the Adjusted
     Libor Rate, or

          (iii) the Adjusted Libor Rate shall no longer represent the effective
     cost to such Lender for Dollar deposits in the London interbank market for
     reasons other than the fact, standing alone, that the Adjusted Libor Rate
     is based on an averaging of rates determined by the Agent and that such
     Lender's rate may exceed such average,

such Lender may elect not to accept any Interest Rate Election electing a Libor
Loan and such Lender shall notify the Agent by telephone or telex thereof,
stating the reasons therefor, not later than the close of business on the second
Business Day prior to the date on which such Libor Loan is to be made. The Agent
shall promptly give notice of such determination and the reason therefor to
Borrower, and all or such portion of the Loans, as the case may be, which are
subject to any of SECTION 2.9.2 (i), (ii) through (iii) as a result of such
Lender's determination shall be made as or converted into, as the case may be,
Prime Rate Loans and such Lender shall have no further obligation to make Libor
Loans, until further written notice to the contrary is given by the Agent to
Borrower. If such circumstances subsequently change so that such Lender shall no
longer be so affected, such Lender's obligation to make or maintain its Pro Rata
Share of all or any portion of the Loans as Libor Loans shall be reinstated when
such Lender obtains actual knowledge of such change of circumstances and
promptly after obtaining such actual knowledge such Lender shall forward written
notice thereof to the Agent. After receipt of such notice, the Agent shall
promptly forward written notice thereof to Borrower. Upon or after receipt by

<PAGE>
                                      -33-

Borrower of such written notice, Borrower may submit an Interest Rate Election
in accordance with this Agreement electing an Interest Period ending no later
than the Interest Adjustment Date for the then current Interest Period for the
other Lenders' Pro Rata Shares of Libor Loans and electing the Libor Rate for
such Lenders' or Lender's Pro Rata Share(s) of the Loans as to which such
Lender's or Lenders' obligation(s) to make or maintain its or their Pro Rata
Share(s) of the Loans as Libor Loans was suspended and such Pro Rata Share(s)
shall be converted to Libor Loans in accordance with this Agreement. During any
period throughout which any of the Lenders has or have no obligation to make or
maintain its or their Pro Rata Share(s) of the Loans as Libor Loans, no Interest
Rate Elections electing the Libor Rate shall be effective with regard to the
Loans to the extent of the Pro Rata Share(s) of such Lender(s), but shall be
effective as to the other Lenders.

          SECTION 2.9.3. LIBOR LENDING UNLAWFUL. In the event that any change in
applicable laws or regulations (including the introduction of any new applicable
law or regulation) or in the interpretation thereof (whether or not having the
force of law) by any governmental or other regulatory authority charged with the
administration thereof, shall make it unlawful for any of the Lenders to make or
continue to maintain its Pro Rata Share of all or any portion of the Loans as
Libor Loans, each such Lender shall promptly notify the Agent by telephone or
telex thereof, and of the reasons therefor, and the obligation of such Lender to
make or maintain its Pro Rata Share of the Loans or such portion thereof as
Libor Loans shall, upon the happening of such event, terminate and the Agent
shall, by telephonic notice to Borrower, declare that such obligation has so
terminated with respect to such Lender, and such Pro Rata Share of the Loans or
any portion thereof to the extent then maintained as Libor Loans, shall, on the
last day on which such Lender can lawfully continue to maintain such Pro Rata
Share of the Loans or any portion thereof as Libor Loans, automatically convert
into Prime Rate Loans without additional cost to Borrower. If circumstances
subsequently change so that such Lender shall no longer be so affected, such
Lender's obligation to make or maintain its Pro Rata Share of all or any portion
of the Loans as Libor Loans shall be reinstated when such Lender obtains actual
knowledge of such change of circumstances, and promptly after obtaining such
actual knowledge such Lender shall forward written notice thereof to the Agent.
After receipt of such notice, the Agent shall promptly forward written notice
thereof Borrower. Upon or after receipt by Borrower of such written notice,
Borrower may submit an Interest Rate Election in accordance with this Agreement
electing an Interest Period ending no later than the Interest Adjustment Date
for the then current Interest Period for the other Lenders' Pro Rata Shares of
Libor Loans and electing the Libor Rate for such Lenders' or Lender's Pro Rata
Share(s) of the Loans as to which such Lender's or Lenders' obligation(s) to
make or maintain its or their Pro Rata Share(s) of the Loans as Libor Loans was
suspended and such Pro Rata Share(s) shall be converted to Libor Loans in
accordance with this Agreement. During any period throughout which any of the
Lenders has or have no obligation to make or maintain its or their Pro Rata
Share(s) of the Loans as Libor Loans, no Interest Rate Elections electing the
Libor Rate shall be effective with regard to the Loans to the extent of the Pro
Rata Share(s) of such Lender(s), but shall be effective as to the other Lenders.

          SECTION 2.9.4. ADDITIONAL COSTS ON LIBOR LOANS. The Borrower further
agrees to pay to the Agent for the account of the applicable Lender or Lenders
such amounts as will

<PAGE>
                                      -34-

compensate any of the Lenders for any increase in the cost to such Lender of
making or maintaining (or of its obligation to make or maintain) all or any
portion of its Pro Rata Share of the Loans as Libor Loans and for any reduction
in the amount of any sum receivable by such Lender under this Agreement in
respect of making or maintaining all or any portion of such Lender's Pro Rata
Share of the Loans as Libor Loans, in either case, from time to time by reason
of:

               (i) any reserve, special deposit or similar requirement against
          assets of, deposits with or for the account of, or credit extended by,
          such Lender, under or pursuant to any law, treaty, rule, regulation
          (including, without limitation, any Regulations of the Board of
          Governors of the Federal Reserve System) or requirement in effect on
          or after the date hereof, any interpretation thereof by any
          governmental authority charged with administration thereof or by any
          central bank or other fiscal or monetary authority or other authority,
          or any requirement imposed by any central bank or such other authority
          whether or not having the force of law but excluding any amount
          included in any Reserve Percentage (as defined in the definition of
          Adjusted Libor Rate); or

               (ii) any change in (including the introduction of any new)
          applicable law, treaty, rule, regulation or requirement or in the
          interpretation thereof by any official authority, or the imposition of
          any requirement of any central bank, whether or not having the force
          of law, which shall subject such Lender to any tax (other than taxes
          on net income imposed on such Lender), levy, impost, charge, fee,
          duty, deduction or withholding of any kind whatsoever or change the
          taxation of such Lender with respect to making or maintaining all or
          any portion of its Pro Rata Share of the Loans as Libor Loans and the
          interest thereon (other than any change which affects, and to the
          extent that it affects, the taxation of net income of such Lender);
          provided, that with respect to any withholding the foregoing shall not
          apply to any withholding tax described in sections 1441, 1442 or 3406
          of the Code, or any succeeding provision of any legislation that
          amends, supplements or replaces any such section, or to any tax, levy,
          impost, duty, charge, fee, deduction or withholding that results from
          any noncompliance by a Lender with any federal, state or foreign law
          or from any failure by a Lender to file or furnish any report, return,
          statement or form the filing or furnishing of which would not have an
          adverse effect on such Lender and would eliminate such tax, impost,
          duty, deduction or withholding;

In any such event, such Lender shall promptly notify the Agent thereof, and of
the reasons therefor, and the Agent shall promptly notify Borrower thereof in
writing stating the reasons provided to the Agent by such Lender therefor and
the additional amounts required to fully compensate such Lender for such
increased or new cost or reduced amount as reasonably determined by such Lender.
Such additional amounts shall be payable on each date on which interest is to be
paid hereunder or, if there is no outstanding principal amount under any of the
Notes, within ten (10) Business Days after Borrower's receipt of said notice.
Such Lender's certificate as to any such increased or new cost or reduced amount
(including calculations, in reasonable detail, showing how such Lender computed
such cost or reduction) shall be submitted by the Agent to Borrower and shall,
in the absence of manifest error, be presumptively correct. In determining any
such amount, the Lender(s) may use any reasonable averaging and attribution

<PAGE>
                                      -35-

methods. Notwithstanding anything to the contrary set forth above, Borrower
shall not be obligated to pay any amounts pursuant to this SECTION 2.9.4 as a
result of any requirement or change referenced above with respect to any period
prior to the one hundred and eightieth (180th) day prior to the date on which
Borrower is first notified thereof (other than any amounts which relate to any
such requirement or change which is adopted with retroactive effect in which
case Borrower shall be obligated to pay all such amounts accrued from the date
as of which such requirement or change is retroactively effective).

               SECTION 2.9.5. LIBOR FUNDING LOSSES. In the event that any
payment or prepayment of a Libor Loan is received on a date other than the last
day of an Interest Period, such payment or prepayment shall, at the request of
Borrower, be held by the Agent in a separate interest bearing account and be
pledged to the Agent as collateral for the obligations of Borrower arising in
connection with this Agreement, the Notes and the other Financing Documents
until the end of the then current Interest Period, at which time the Agent shall
apply such payment or prepayment, for the accounts of the Lenders in accordance
with their Pro Rata Shares, to the outstanding Libor Loans. Notwithstanding the
foregoing, in the event Borrower does not request the Agent to hold prepayment
funds as described in the preceding sentence, and any of the Lenders shall incur
any loss or expense (including, without limitation, any loss or expense incurred
by reason of the liquidation or reemployment of deposits or other funds acquired
by such Lender to fund or maintain all or any portion of the Loans as Libor
Loans) as a result of:

               (i) payment or prepayment by Borrower of all or any portion of
          any Libor Loan on a date other than the Interest Adjustment Date for
          such Libor Loan, for any reason; provided, however that this clause
          shall not be deemed to grant Borrower any right to convert a Libor
          Loan to a Prime Rate Loan prior to the end of any Interest Period or
          to imply such right;

               (ii) conversion of all or any portion of any Libor Loan on a day
          other than the last day of an Interest Period applicable to such Loan
          to a Prime Rate Loan for any reason including, without limitation,
          acceleration of the Loans upon or after an Event of Default, any
          Interest Rate Election or any other cause whether voluntary or
          involuntary and whether or not referred to or described in this
          Agreement, other than any such conversion resulting solely from
          application of SECTIONS 2.9.2 or 2.9.3 by any Lender; or

               (iii) any failure by Borrower to borrow the Loans as Libor Loans
          on the date specified in any Interest Rate Election selecting the
          Libor Rate, other than any such failure resulting solely from
          application of SECTIONS 2.9.2 or 2.9.3 by any Lender;

such Lender shall promptly notify the Agent thereof, and of the reasons
therefor. Upon the request of the Agent, Borrower shall pay directly to the
Agent for the account of such Lender such amount as will (in the reasonable
determination of such Lender, which shall be conclusive in the absence of
manifest error) reimburse such Lender for such loss or expense. Each Lender
shall furnish to Borrower, upon written request from Borrower received by the
Agent, a written statement setting forth the computation of any such amounts
payable to such Lender under this SECTION 2.9.5.

<PAGE>
                                      -36-

               SECTION 2.9.6. BANKING PRACTICES. Each Lender agrees that upon
the occurrence of any of the events described in SECTIONS 2.2.3 and/or 2.9.2,
2.9.4 or 2.9.5, such Lender will exercise all reasonable efforts to take such
reasonable actions at no expense to such Lender (other than reasonable expenses
which are covered by Borrower's advance deposit of funds with such Lender for
such purpose, or if such Lender agrees, which Borrower has agreed to pay or
reimburse to such Lender in full upon demand), in accordance with such Lender's
usual banking practices in such situations and subject to any statutory or
regulatory requirements applicable to such Lender, as such Lender may take
without the consent or participation of any other Person to, in the case of an
event described in SECTIONS 2.2.3 and/or 2.9.4 or 2.9.5, mitigate the cost of
such events to Borrower and, in the case of an event described in SECTIONS
2.9.2(I), (II) or (III), to seek Dollar deposits in any other interbank Libor
market in which such Lender regularly participates and in which the applicable
determination(s) described in SECTIONS 2.9.2(I), (II) or (III), as the case may
be, does not apply.

               SECTION 2.9.7. BORROWER'S OPTIONS ON UNAVAILABILITY OR INCREASED
COST OF LIBOR LOANS. In the event of any conversion of all or any portion of any
Lender's Pro Rata Share of any Libor Loans to a Prime Rate Loan for reasons
beyond Borrower's control or in the event that any Lender's Pro Rata Share of
all or any portion of the Libor Loans becomes subject, under SECTIONS 2.9.4 or
2.9.5, to additional costs, Borrower shall have the option, subject to the other
terms and conditions of this Agreement, to convert such Lender's Pro Rata Share
to a Prime Rate Loan by making Interest Rate Elections for Interest Periods
which (i) end on the Interest Adjustment Date for such Libor Loan or (ii) end on
Business Days occurring prior to such Interest Adjustment Date, in which case,
at the end of the last of such Interest Periods any such Libor Rate Loan shall
automatically convert to a Prime Rate Loan and Borrower shall have no further
right to make an Interest Rate Election with respect to such Prime Rate Loan
other than an Interest Rate Election which is effective on the Interest
Adjustment Date for such Libor Loan. The Borrower's options set forth in this
SECTION 2.9.7 may be exercised, if and only if Borrower pays, concurrently with
delivery to the Agent of each such Interest Rate Election and thereafter in
accordance with SECTIONS 2.9.4, 2.9.5 and 2.9.6 all amounts provided for therein
to the Agent in accordance with this Agreement.

               If Borrower shall, as a result of the requirements of SECTION
2.9.4 above, be required to pay any Lender the additional costs referred to
therein, but not be required to pay such additional costs to the other Lender or
Lenders and Borrower, in its sole discretion, shall deem such additional amounts
to be material or in the event that Libor Loans from a Lender are unavailable to
Borrower as a result solely of the provisions of SECTIONS 2.9.2, 2.9.3 or 2.9.4,
but are available from the other Lender or Lenders, Borrower shall have the
right to substitute another bank satisfactory to the Agent for such Lender which
is entitled to such additional costs or which is relieved from making Libor
Loans and the Agent shall use reasonable efforts (with all reasonable costs of
such efforts by the Agent to be borne by Borrower) to assist Borrower to locate
such substitute bank. Any such substitution shall take place in accordance with
SECTION 9.11 and otherwise be on terms and conditions reasonably satisfactory to
the Agent, and until such time as such substitution shall be consummated,
Borrower shall continue to pay such additional costs and comply with the
above-referenced Sections. Upon any such substitution,

<PAGE>
                                      -37-

Borrower shall pay or cause to be paid to the Lender that is being replaced, all
principal, interest (to the date of such substitution) and other amounts owing
hereunder to such Lender and such Lender will be released from liability
hereunder.

               SECTION 2.9.8. ASSUMPTIONS CONCERNING FUNDING OF LIBOR LOANS. The
calculation of all amounts payable to the Lenders under this SECTION 2.9 shall
be made as though each Lender actually funded its relevant Libor Loans through
the purchase of a deposit in the London interbank market bearing interest at the
Libor Rate in an amount equal to that Libor Loan and having a maturity
comparable to the relevant Interest Period and through the transfer of such
deposit from an offshore office of such Lender to a domestic office of such
Lender in the United States of America; provided, however, that each Lender may
fund each of its Libor Loans in any manner it sees fit and the foregoing
assumption shall be utilized solely for the calculation of amounts payable under
this SECTION 2.9.

     SECTION 2.10. INTEREST RATE PROTECTION. Borrower shall maintain an interest
rate protection arrangement covering as of the date of any determination thereof
not less than fifty percent (50%) of the outstanding principal balance of the
Term Loan. Such interest rate protection arrangement may consist of any one or a
combination of the following: (i) the purchase of an interest rate swap
arrangement from a financial institution reasonably acceptable to the Majority
Lenders covering such Loans effectively converting Borrower's interest payment
obligations with respect to such portion of the Term Loans to a fixed rate per
annum satisfactory to the Majority Lenders for a term expiring not earlier than
the second anniversary of the Closing Date or (ii) the purchase of an interest
rate cap from a financial institution reasonably acceptable to the Majority
Lenders covering such Loans at a cap rate per annum satisfactory to the Majority
Lenders for a term expiring not earlier than the second anniversary of the
Closing Date. The other terms and conditions of any such interest rate swap or
interest rate cap shall be reasonably satisfactory to the Majority Lenders.

                                   ARTICLE III

                              CONDITIONS OF LENDING

     SECTION 3.1. CONDITIONS PRECEDENT TO THE COMMITMENT AND TO ALL LOANS.

          SECTION 3.1.1. THE COMMITMENT AND INITIAL LOANS. The Commitment and
the obligation of the Lenders to make the initial Advances of the Loans and/or
to issue any Letter of Credit or Letter of Credit Agreement are subject to
performance by Borrower of all of Borrower's obligations under this Agreement
and to the satisfaction of the conditions precedent that all legal matters
incident to the transactions contemplated hereby or incidental to the Loans
shall be reasonably satisfactory to counsel for the Agent, and that the Lenders
shall have received on or before the Closing Date all of the following (other
any items expressly deferred in writing, including those set forth in the
Post-Closing Letter), each dated the Closing Date or another date acceptable to
the Lenders and each to be in form and substance reasonably satisfactory to the

<PAGE>
                                      -38-

Agent or if any of the following is not a deliverable, the satisfaction of such
condition in form and substance reasonably satisfactory to the Agent:

          SECTION 3.1.1.1. The Financing Documents, including, without
limitation, those hereinafter set forth and Borrower's and any Subsidiary's
certificate of incorporation or other organizational documents, by-laws and each
agreement or instrument relating thereto.

          SECTION 3.1.1.2. Certificate of the secretary, clerk or similar
officer of Borrower and each Subsidiary certifying as to the resolutions of the
shareholders or board of directors of Borrower and each Subsidiary authorizing
and approving each of the Financing Documents to which Borrower and each
Subsidiary is a party and other matters contemplated hereby and certifying as to
the names and signatures of the Authorized Representative(s) of Borrower and
each Subsidiary authorized to sign each Financing Document to be executed and
delivered by or on behalf of Borrower and each Subsidiary. The Agent and the
Lenders may conclusively rely on each such certificate until the Agent shall
receive a further certificate canceling or amending the prior certificate and
submitting the signatures of the Authorized Representative(s) named in such
further certificate.

          SECTION 3.1.1.3. A favorable opinion of Hale and Dorr LLP, counsel for
Borrower, in form and substance reasonably satisfactory to the Agent.

          SECTION 3.1.1.4. An Officer's Certificate stating that:

               SECTION 3.1.1.4.1. The representations and warranties contained
in SECTION 4.1 and/or contained in any of the other Financing Documents are
correct on and as of the Closing Date as though made on and as of such date; and

               SECTION 3.1.1.4.2. No Default or Event of Default has occurred
and is continuing, or would result from the making of the Loans.

          SECTION 3.1.1.5. Certificates of good standing or legal existence of
the secretaries of state (or equivalent officials) of the states (or
jurisdictions) of organization and qualification of and covering Borrower dated
reasonably near the Closing Date.

          SECTION 3.1.1.6. Payment to the Agent and the Lenders of any fees
specified in this Agreement as being payable on the Closing Date and all
reasonable out-of-pocket costs and expenses incurred by the Agent and Fleet in
connection with the transactions contemplated hereby, including, but not limited
to, reasonable outside legal expenses and any accounting fees, auditing fees,
appraisal fees, and other fees associated with any independent analyses of
Borrower and any Subsidiary and evidence that all other reasonable fees and
costs payable by Borrower in connection with the transactions contemplated by
the Financing Documents and completed on the Closing Date have been paid in
full.

          SECTION 3.1.1.7. Such other information about Borrower, any
Subsidiaries and/or their Business Condition as the Lenders may reasonably
request.

<PAGE>
                                      -39-

          SECTION 3.1.1.8. Certificates of fire, business interruption,
liability and extended coverage insurance policies, each such policy to name the
Agent as mortgagee and loss payee and, on all liability policies, as additional
insured.

          SECTION 3.1.1.9. True descriptions of any pending or threatened
litigation against or by Borrower or any Subsidiary.

          SECTION 3.1.1.10. Evidence that all necessary material third party
consents, if any, to this Agreement and/or the Loans have been obtained and
remain in effect without the imposition of any terms or condition not reasonably
acceptable to the Lenders and all required filings with any governmental
authority have been duly completed.

          SECTION 3.1.1.11. The fact that the representations and warranties of
Borrower contained in Article IV, INFRA, and in each of the other Financing
Documents are true and correct in all material respects on and as of the Closing
Date except as altered hereafter by actions not prohibited hereunder. The
Borrower's delivery of each Note and Letter of Credit Agreement to the Lenders
and of each Request to the Agent shall be deemed to be a representation and
warranty by Borrower as of the date thereof to such effect.

          SECTION 3.1.1.12. That there has been no enactment of any law or
regulation by any governmental authority which would make it (i) unlawful, (ii)
prevent, (iii) restrain or (iv) impose conditions which the Lenders determine to
be materially adverse, in any respect as to the foregoing, to the making of the
Loans and/or the completion of the Related Transactions.

          SECTION 3.1.1.13. The Security Documents, after the completion of any
required filings or recordations, will grant to the Agent perfected, first
priority security interests or mortgages, as the case may be, with respect to
the collateral identified therein and the Agent shall received the favorable
opinion of counsel referred to in SECTION 3.1.1.3 above with respect to such
perfection. The Agent shall also have received such searches, landlord consents,
access agreements and/or title insurance commitments as reasonably requested by
the Agent, all in form and substance reasonably satisfactory to the Agent and/or
its counsel. Without limiting the generality of the foregoing, the Agent shall
be reasonably satisfied with the terms and conditions of all real property
leases in which Borrower and any Subsidiary has a leasehold interest, including
the terms of such leaseholds and the assumability of the lessee's obligations
thereunder upon the transfer of or foreclosure upon of Borrower's or any
Subsidiary's leasehold interest.

          SECTION 3.1.1.14. There shall exist no action, suit, investigation,
litigation or proceeding pending or threatened in any court or before any
arbitrator or governmental or regulatory agency or authority which if adversely
determined would reasonably be expected to result in a Material Adverse Effect.

          SECTION 3.1.1.15. All information and materials supplied to the Agent
prior to the date hereof shall be true and correct in all material aspects; and
no additional

<PAGE>
                                      -40-

information shall have come to the attention of the Agent or the
Lenders that is inconsistent in any material respect with the information and
materials supplied to the Agent prior to the date hereof or that would
reasonably be expected to have a Material Adverse Effect.

          SECTION 3.1.2. THE COMMITMENT AND THE LOANS. The Commitment and the
obligation of each Lender to make or maintain its Pro Rata Share of any Advance
or Loan and/or to issue any Letter of Credit or Letter of Credit Agreement are
subject to performance by Borrower of all its obligations under this Agreement
and to the satisfaction of the following further conditions precedent:

          (a) The fact that, immediately prior to and upon the making of each
Loan, no Event of Default or Default shall have occurred and be continuing;

          (b) The fact that the representations and warranties of Borrower
contained in Article IV, INFRA and in each of the other Financing Documents, are
true and correct in all material respects on and as of the date of each Advance
or Loan except as altered hereafter by actions consented to or not prohibited
hereunder and except for those which state that they are made as of a specified
date. The Borrower's delivery of each Request to the Agent shall be deemed to be
a representation and warranty by Borrower as of the date of such Advance or Loan
as to the facts specified in SECTIONS 3.1.2(A) and (B);

          (c) Receipt by Agent on or prior to the Business Day specified in the
definition of Interest Rate Election of a written Request stating the amount
requested for the Loan or Advance in question and an Interest Rate Election for
such Loan or Advance, all signed by a duly authorized officer of Borrower on
behalf of Borrower;

          (d) That there exists no law or regulation by any governmental
authority having jurisdiction over the Agent or any of the Lenders which would
make it unlawful in any respect for such Lender to make its Pro Rata Share of
the Loan or Advance, including, without limitation, Regulations U, T, and X of
the Board of Governors of the Federal Reserve System; and

          (e) No Material Adverse Effect has occurred.

                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES

     SECTION 4.1. REPRESENTATIONS AND WARRANTIES OF BORROWER. The Borrower
represents and warrants to the Agent and the Lenders that, after giving effect
to the Loans and the application of the proceeds thereof (which representations
and warranties shall survive the making of the Loans) as follows:

<PAGE>
                                      -41-

          SECTION 4.1.1. ORGANIZATION AND EXISTENCE. The Borrower and any
Subsidiary is a corporation, duly organized, validly existing and in good
standing under the laws of the state (or applicable jurisdiction) of its
incorporation or organization and is duly qualified to do business in all
jurisdictions in which such qualification is required, all as noted on EXHIBIT
4.1.1, except where failure to so qualify would not have a Material Adverse
Effect, and has all requisite power and authority to conduct its business, to
own its properties and to execute and deliver, and to perform all of its
obligations under the Financing Documents.

          SECTION 4.1.2. AUTHORIZATION AND ABSENCE OF DEFAULTS. Except as
described on EXHIBIT 4.1.2, the execution, delivery to the Agent and/or the
Lenders and performance by Borrower and any Subsidiary of the Financing
Documents to which it is a party have been duly authorized by all necessary
corporate and governmental action and do not and will not (i) require any
consent or approval of the shareholders or board of directors of Borrower or any
Subsidiary which has not been obtained, (ii) violate any provision of any law,
rule, regulation (including, without limitation, Regulations U and X of the
board of governors of the federal reserve system), order, writ, judgment,
injunction, decree, determination or award presently in effect having
applicability to Borrower and/or any Subsidiary and/or the articles of
organization or by-laws, as applicable, of Borrower and/or any Subsidiary, (iii)
result in a material breach of or constitute a material default under any
indenture or loan or credit agreement or any other material agreement, lease or
instrument to which Borrower and/or any Subsidiary is or are a party or parties
or by which it or they or its or their properties may be bound or affected; or
(iv) result in, or require, the creation or imposition of any Lien on any of
Borrower's and/or any Subsidiary's respective properties or revenues other than
Liens granted to the Agent by any of the Financing Documents securing the
Obligations. The Borrower and any Subsidiary are in compliance with all such
applicable laws, rules, regulations, orders, writs, judgments, injunctions,
decrees, determinations or awards or any such indentures, other agreements,
leases or instruments, except where the failure to be in compliance does not
have a Material Adverse Effect.

          SECTION 4.1.3. ACQUISITION OF CONSENTS. Except as noted on EXHIBIT
4.1.3, no authorization, consent, approval, license, exemption of or filing or
registration with any court or governmental department, commission, board,
bureau, agency or instrumentality, domestic or foreign, other than those which
have been obtained, is or will be necessary to the valid execution and delivery
to the Agent and/or the Lenders or performance by Borrower or any Subsidiary of
any Financing Documents and each of the foregoing which has been obtained is in
full force and effect except where the failure to obtain such authorizations,
consents, approvals, licenses, exemptions or filings would not have a Material
Adverse Effect.

          SECTION 4.1.4. VALIDITY AND ENFORCEABILITY. Each of the Financing
Documents to which Borrower or any Subsidiary is a party when delivered
hereunder will constitute the legal, valid and binding obligations of each of
Borrower and any Subsidiary which is or are a party thereto enforceable against
Borrower, and any Subsidiary which is or are a party thereto in accordance with
their respective terms except as the enforceability thereof may be limited by
the effect of general principles of equity and bankruptcy and similar laws
affecting the rights and remedies of creditors generally.

<PAGE>
                                      -42-

          SECTION 4.1.5. FINANCIAL INFORMATION. The following information with
respect to Borrower has heretofore been furnished to the Agent:

               SECTION 4.1.5.1. Audited annual financial statements of Viewlogic
Systems, Inc. for the period ended December 31 1999 and unaudited consolidated
financial statements of Innoveda and its Subsidiaries for the period ended March
31, 2000;

               SECTION 4.1.5.2. Interim, consolidated balance sheets of Innoveda
and its Subsidiaries as of the end of the most recent fiscal quarter prior to
the Closing for which such statements are available and the related statements
of income, such balance sheets and statements have been prepared and certified
by an Authorized Representative in an Officer's Certificate as having been
prepared in accordance with GAAP except for footnotes and year-end adjustments;

               SECTION 4.1.5.3. The Budget.

               SECTION 4.1.5.4. A COPY OF BORROWER'S FORM 10Q REPORT MOST
RECENTLY FILED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION.

               Each of the financial statements referred to above in SECTION
4.1.5.1 and 4.1.5.2 was prepared in accordance with GAAP (subject, in the case
of interim statements, to the absence of footnotes and normal year-end
adjustments) applied on a consistent basis, except as stated therein. To the
best of Borrower's knowledge, each of the financial statements referred to above
in SECTIONS 4.1.5.1, 4.1.5.2 and 4.1.5.4 fairly presents the financial condition
or pro forma financial condition, as the case may be, of the Person being
reported on at such dates and is complete and correct in all material respects
and no Material Adverse Effect has occurred since the date thereof. The
Projections were prepared by Borrower in good faith.

          SECTION 4.1.6. NO LITIGATION. There are no actions, suits or
proceedings pending or, to the knowledge of Borrower, threatened against or
affecting Borrower and/or any Subsidiary or any of their properties before any
court or governmental department, commission, board, bureau, agency or
instrumentality, domestic or foreign, which if determined adversely to Borrower
and/or any Subsidiary would draw into question the legal existence of Borrower
and/or any such Subsidiary and/or the validity, authorization and/or
enforceability of any of the Financing Documents and/or any provision thereof
and/or would reasonably be expected to have a Material Adverse Effect except
those matters, if any, described on EXHIBIT 4.1.6 none of which, in Borrower's
good faith opinion, will (i) have such Material Adverse Effect or (ii) draw into
question (a) the legal existence of Borrower and/or any such Subsidiary or (b)
the validity, authorization and/or enforceability of any of the Financing
Documents and/or any provision thereof.

          SECTION 4.1.7. REGULATION U. The Borrower is not engaged in the
business of extending credit for the purpose of purchasing or carrying "margin
stock" within the meaning of Regulation U of the Board of Governors of the
Federal Reserve System (12 CFR Part 221) ("Regulation U"), and does not own and
has no present intention of acquiring any such margin stock or a "margin
security" within the meaning of Regulation U. None of the proceeds of the

<PAGE>
                                      -43-

Loans will be used directly or indirectly by Borrower for the purpose of
purchasing or carrying, or for the purpose of reducing or retiring any
Indebtedness which was originally incurred to purchase or carry, any such margin
security or margin stock or for any other purpose which might constitute the
transaction contemplated hereby a "purpose credit" within the meaning of
Regulation U, or cause this Agreement to violate any other regulation of the
Board of Governors of the Federal Reserve System or the Securities and Exchange
Act of 1934, as amended, or any rules or regulations promulgated under either
said statute.

          SECTION 4.1.8. ABSENCE OF ADVERSE AGREEMENTS. Neither Borrower nor any
Subsidiary is a party to any indenture, loan or credit agreement or any lease or
other agreement or instrument or subject to any corporate or partnership
restriction which would have a Material Adverse Effect.

          SECTION 4.1.9. TAXES. The Borrower and each Subsidiary has filed all
tax returns (federal, state and local) required to be filed and paid all taxes
shown thereon to be due, including interest and penalties, except for those
taxes, if any, which are being contested in good faith and by appropriate
proceedings, and for which proper reserve or other provision has been made in
accordance with GAAP and except where any failure to file or pay would not have
a Material Adverse Effect on Borrower or any Subsidiary and except as described
in EXHIBIT 4.1.9.

          SECTION 4.1.10. ERISA. Borrower and any Commonly Controlled Entity do
not maintain or contribute to any Plan which is not in substantial compliance
with ERISA, or any Single Employer Plan which has incurred any accumulated
funding deficiency within the meaning of sections 412 and 418 of the Code or
which has applied for or obtained a waiver from the Internal Revenue Service of
any minimum funding requirement under Section 412 of the Code. Borrower and any
Commonly Controlled Entity have not incurred any liability to the PBGC in
connection with any Plan covering any employees of Borrower or any Commonly
Controlled Entity in amount exceeding Fifty Thousand Dollars ($50,000) in the
aggregate or ceased operations at any facility or withdrawn from any Plan in a
manner which could subject any of them to liability under sections 4062(e), 4063
or 4064 of ERISA in amount exceeding Fifty Thousand Dollars ($50,000) in the
aggregate, and know of no facts or circumstance which might give rise to any
liability of Borrower or any Commonly Controlled Entity to the PBGC under Title
IV of ERISA in amount exceeding Fifty Thousand Dollars ($50,000) in the
aggregate. Borrower and any Commonly Controlled Entity have not incurred any
withdrawal liability in amount exceeding Fifty Thousand Dollars ($50,000) in the
aggregate (including but not limited to any contingent or secondary withdrawal
liability) within the meaning of sections 4201 and 4202 of ERISA, to any
Multiemployer Plan, and no event has occurred, and there exists no condition or
set of circumstances known to Borrower, which presents a risk of the occurrence
of any withdrawal from or the partition, termination, reorganization or
insolvency of any Multiemployer Plan which could result in any liability to a
Multiemployer Plan in amount exceeding Fifty Thousand Dollars ($50,000) in the
aggregate.

          Except for payments for which the minimum funding requirement has been
waived under Section 412 of the Code, full payment has been made of all amounts
which Borrower and any Commonly Controlled Entity are required to have paid as
contributions to any

<PAGE>
                                      -44-

Plan under applicable law or under any plan or any agreement relating to any
Plan to which Borrower or any Commonly Controlled Entity is a party. Borrower
and each Commonly Controlled Entity have made adequate provision for reserves to
meet contributions that have not been made because they are not yet due under
the terms of any Plan or related agreements.

          Neither Borrower nor any Commonly Controlled Entity has any knowledge,
nor do any of them have any reason to believe, that any Reportable Event which
could result in a liability or liabilities of Fifty Thousand Dollars ($50,000)
or more in the aggregate has occurred with respect to any Plan.

          Neither Borrower nor any Commonly Controlled Entity maintain,
contributes to, or is required to make or accrue a contribution or has within
any of the six preceding years maintained, contributed to or been required to
make or accrue a contribution to any Plan subject to regulation under Title IV
of ERISA, any Plan that is subject to the minimum funding requirements of
Section 412 of the Code or Section 302 of ERISA, or any Multiemployer Plan.

          SECTION 4.1.11. OWNERSHIP OF PROPERTIES.

               SECTION 4.1.11.1. Except for Permitted Encumbrances, Borrower and
any Subsidiary has good title to all of its properties and assets free and clear
of all restrictions and Liens of any kind other than those which could not
reasonably be expected to have a Material Adverse Effect or a material adverse
effect on the validity, authorization and/or enforceability of the Financing
Documents and/or any provision thereof.

               SECTION 4.1.11.2. EXHIBIT 4.1.11 accurately and completely lists
the location of all real property owned or leased by Borrower or any Subsidiary
organized under to the laws of any state in the United States. Borrower and each
such Subsidiary enjoys quiet possession under all material leases of real
property to which it is a party as a lessee, and all of such leases are valid,
subsisting and, to Borrower's knowledge, in full force and effect.

               SECTION 4.1.11.3. Except as set forth in EXHIBIT 4.1.11, all of
the material properties used in the conduct of Borrower's and each Subsidiary's
business (i) are in good repair, working order and condition (reasonable wear
and tear excepted) and reasonably suitable for use in the operation of
Borrower's, and each Subsidiary's business; and (ii) to Borrower's knowledge are
currently operated and maintained, in all material respects, in accordance with
the requirements of applicable governmental authorities.

          SECTION 4.1.12. ACCURACY OF REPRESENTATIONS AND WARRANTIES. None of
Borrower's representations or warranties set forth in this Agreement or in any
document or certificate furnished pursuant to this Agreement or in connection
with the transactions contemplated hereby contains any untrue statement of a
material fact or omits to state a material fact necessary to make any statement
of fact contained herein or therein, in light of the circumstances under which
it was made, not misleading; except that unless provided otherwise any such
document or certificate speaks as of the date stated and not the present.

<PAGE>
                                      -45-

          SECTION 4.1.13. NO INVESTMENT COMPANY. Neither Borrower nor any
Subsidiary is an "investment company" or a company "controlled" by an
"investment company" as such terms are defined in the Investment Company Act of
1940, as amended, which is required to register thereunder.

          SECTION 4.1.14. SOLVENCY, ETC. After giving effect to the consummation
of each Loan outstanding and to be made under this Agreement as of the time this
representation and warranty is given, Borrower (a) will be able to pay its debts
as they become due, (b) will have funds and capital sufficient to carry on its
business and all businesses in which it is about to engage, and (c) will own
property in the aggregate having a value both at fair valuation and at fair
saleable value in the ordinary course of Borrower's business greater than the
amount required to pay its Indebtedness, including for this purpose its probable
liabilities associated with unliquidated and disputed claims. The Borrower will
not be rendered insolvent by the execution and delivery of this Agreement and
the consummation of any transactions contemplated herein.

          SECTION 4.1.15. OWNERSHIP INTERESTS. The schedule of ownership
interests in each of the Subsidiaries of Innoveda set forth in EXHIBIT 1.1 is
true, accurate and complete as of the date of this Agreement

          SECTION 4.1.16. LICENSES, REGISTRATIONS, COMPLIANCE WITH LAWS, ETC.
Other than as set forth on EXHIBIT 4.1.16, the Borrower and each of the
Subsidiaries have obtained all Governmental Approvals material to the carrying
out of Borrower's and each of the Subsidiaries' businesses as presently
conducted, each of which is in full force and effect, is duly issued in the name
of, or validly assigned to Borrower or a Subsidiary, and Borrower or a
Subsidiary, as the case may be, has full power and authority to operate under
each such Governmental Approval, except where the failure to have any such
Governmental Approvals could have a Material Adverse Effect. There is no
material violation or material failure of compliance or, to Borrower's
knowledge, allegation of such violation or failure of compliance on the part of
Borrower or any Subsidiary with any Governmental Approval, and there is no
action, proceeding or investigation pending or to the knowledge of Borrower
threatened nor has Borrower or any Subsidiary received any notice of such which
could reasonably be expected to result in the termination or suspension of any
Governmental Approval which in any case could have a Material Adverse Effect.

          SECTION 4.1.17. PRINCIPAL PLACE OF BUSINESS; BOOKS AND RECORDS. The
Borrower's chief executive offices are located at Borrower's addresses set forth
in SECTION 9.6. All of Borrower's books and records are kept at one or more of
its addresses set forth in SECTION 9.6 or in EXHIBIT A to the Security Agreement
of even date herewith executed by Borrower in favor of the Agent.

          SECTION 4.1.18. SUBSIDIARIES. The Borrower has only the Subsidiaries
identified on EXHIBIT 1.1, and except as identified on EXHIBIT 1.1 no such
Subsidiary is a Material Foreign Subsidiary.

<PAGE>
                                      -46-

          SECTION 4.1.19. COPYRIGHT. Except as set forth in EXHIBIT 4.1.19
Borrower has not violated in any material respect any of the provisions of the
Copyright Revision Act of 1976, 17 U.S.C. 101, ET SEQ. The Borrower has filed
all registration statements, notices and statements of account and all necessary
supplements and adjustment schedules thereto with the United States Copyright
Office and has made all payments to the United States Copyright Office to obtain
and maintain those copyrights which it has registered with the United States
Copyright Office. EXHIBIT 4.1.19 accurately and completely sets forth all
registered copyrights held by Borrower or any of the Subsidiaries and contains
exceptions to the representations contained in this SECTION 4.1.19. To the
knowledge of Borrower, no inquiries regarding any such filings have been
received by the Copyright Office.

          SECTION 4.1.20. ENVIRONMENTAL COMPLIANCE. Neither Borrower nor, to the
knowledge of Borrower, any other Person:

               SECTION 4.1.20.1. has caused, permitted, or suffered to exist any
Hazardous Material to be spilled, placed, held, located or disposed of on,
under, or about, any of the facilities owned, leased or used by Borrower (the
"Premises"), or from the Premises into the atmosphere, any body of water, any
wetlands, or on any other real property which would reasonably be expected to
result in a material liability of Borrower, nor to Borrower's knowledge does any
Hazardous Material exist on, under or about the Premises other than as disclosed
on EXHIBIT 4.1.20, or in respect of Hazardous Material used or disposed of in
compliance with law;

               SECTION 4.1.20.2. has any knowledge that any of the Premises has
ever been used (whether by Borrower or, to the knowledge of Borrower, by any
other Person) as a treatment, storage or disposal (whether permanent or
temporary) site for any Hazardous Waste as defined in 42 U.S.C.A. 6901, ET SEQ.
(the Resource Recovery and Conservation Act); and

               SECTION 4.1.20.3. except as disclosed to the Agent, has any
knowledge of any notice of violation, Lien or other notice issued by any
governmental agency with respect to the environmental condition of the Premises
or any other property owned, leased or operated by Borrower, or any other
property which was included in the property description of the Premises or such
other real property within the preceding three years which could reasonably be
expected to result in a material liability of Borrower.

          SECTION 4.1.21. MATERIAL AGREEMENTS, ETC. EXHIBIT 4.1.21 attached
hereto accurately and completely lists all material agreements to which Borrower
or any of the Subsidiaries are a party including without limitation all material
software licenses, and all material construction, engineering, consulting,
employment, management, operating and related agreements, if any, which are
presently in effect for which the termination prior to the stated term thereof
would reasonably be expected to have a Material Adverse Effect. All of the
material agreements to which Borrower or any Subsidiary is a party, are legally
valid and binding with respect to Borrower and its Subsidiaries, and, to
Borrower's knowledge, in full force and effect and neither Borrower, any of the
Subsidiaries nor, to Borrower's knowledge, any other parties thereto are in
material default thereunder except for any defaults which could not individually
or in the aggregate, reasonably be expected to have a Material Adverse Effect.

<PAGE>
                                      -47-

          SECTION 4.1.22. PATENTS, TRADEMARKS AND OTHER PROPERTY RIGHTS. EXHIBIT
4.1.22 attached hereto contains a complete and accurate schedule of all
registered trademarks, registered copyrights and patents of Borrower and/or any
of the Subsidiaries, and pending applications therefor, and all other
intellectual property in which Borrower and/or any of the Subsidiaries has any
rights and which is material to the conduct of Borrower's business, other than
"off-the shelf" software which is generally available to the general public at
retail. Except as set forth in EXHIBIT 4.1.22, Borrower and any Subsidiaries
own, possess, or have licenses to use all the patents, trademarks, service
marks, trade names, copyrights and non-governmental licenses, and all rights
with respect to the foregoing, reasonably necessary for the conduct of their
respective businesses as now conducted, without, to Borrower's knowledge any
conflict with the rights of others with respect thereto.

          SECTION 4.1.23. MATERIAL ADVERSE EFFECT. No Material Adverse Effect
has occurred and there exists no action, suit, investigation, litigation or
proceeding pending or threatened in writing in any court or before any
arbitrator or governmental or regulatory agency or authority that could
reasonably be expected to result in a Material Adverse Effect.

                                    ARTICLE V

                            COVENANTS OF THE BORROWER

     SECTION 5.1. AFFIRMATIVE COVENANTS OF BORROWER OTHER THAN REPORTING
REQUIREMENTS. From the date hereof and thereafter for so long as there is
Indebtedness of Borrower to any Lender and/or the Agent under any of the
Financing Documents or any part of the Commitment is in effect, Borrower will,
with respect to itself and, unless noted otherwise below, with respect to each
of its Subsidiaries, ensure that each Subsidiary will, unless the Majority
Lenders shall otherwise consent in writing:

          SECTION 5.1.1. PAYMENT OF TAXES, ETC. Pay and discharge all taxes and
assessments and governmental charges or levies imposed upon it or upon its
income or profits, or upon any properties belonging to it, prior to the date on
which penalties attach thereto, and all lawful claims for the same which, if
unpaid, might become a Lien upon any of its properties, provided that (unless
and until foreclosure, restraint, sale or any similar proceeding is pending and
is not stayed, discharged or bonded within 30 days after commencement) Borrower
shall not be required to pay any such tax, assessment, charge, levy or claim
which is being contested in good faith and by proper proceedings and for which
proper reserve or other provision has been made in accordance with GAAP, unless
failure to pay could not reasonably be expected to result in a Material Adverse
Effect.

          SECTION 5.1.2. MAINTENANCE OF INSURANCE Maintain insurance in
accordance with the Security Documents including, without limitation, casualty,
liability and business interruption insurance reasonably acceptable to the
Majority Lenders and, to the extent not covered by any of the Security
Documents, with responsible and reputable insurance companies

<PAGE>
                                      -48-

or associations in such amounts and covering such risks as is usually carried by
companies engaged in similar businesses and owning similar properties and in
accordance with the requirements of any governmental agency having jurisdiction
over Borrower and/or any Subsidiary. The Borrower shall provide the Lenders with
such evidence as the Agent may reasonably request from time to time as to the
maintenance of all such insurance. Maintain on the tangible insurable collateral
under any of the Security Documents insurance against loss by fire, hazards
included within the term "extended coverage", and such other hazards, casualties
and contingencies as the Agent may from time to time require, in an amount equal
to the greater of (i) $8,000,000 OR (ii) one hundred percent (100%) of the
replacement cost of the collateral under any of the Security Documents and
business interruption insurance in the amount of at least $8,000,000 All
policies of such insurance and all renewals thereof shall be in form and
substance reasonably acceptable to Agent, shall be made payable in case of loss
to the Agent as loss payee and mortgagee and shall contain an endorsement
requiring thirty (30) days prior written notice to the Agent prior to
cancellation or change in the coverage, scope or amount of any such policies.
Borrower shall also keep in full force and effect a policy of public liability
insurance against claims of bodily injury, death or property damage occurring in
any building providing combined single limit coverage of $1,000,000 for bodily
injury and property damage per occurrence and $2,000,000 in the aggregate.
Borrower shall increase the limits of such liability insurance to such higher
amounts as the Agent may from time to time reasonably require. Certificates of
all such insurance shall be delivered to the Agent concurrently with the
execution and delivery of this Agreement, and thereafter all renewal or
replacement certificates shall be delivered to the Agent not less than thirty
(30) days prior to the expiration date of the policy to be renewed or replaced,
accompanied by evidence satisfactory to the Agent that all premiums payable with
respect to such policies have been paid by Borrower. Borrower shall have the
right of free choice in the selection of the agent or the insurer through or by
which the insurance required hereunder is to be placed; provided, however, said
insurer has at all times a general policyholders' rating of A or A+ in Best's
latest rating guide. Furthermore, upon the occurrence of an Event of Default,
the Agent shall have the right and, is hereby constituted and appointed the true
and lawful attorney irrevocable of Borrower, in the name and stead of Borrower,
but in the uncontrolled discretion of said attorney, (i) to adjust, sue for,
compromise and collect any amounts due under such insurance policies in the
event of loss and (ii) to give releases for any and all amounts received in
settlement of losses under such policies; and the same shall, subject to SECTION
2.6.1.3 of this Agreement, at the option of the Agent, be applied, after first
deducting the costs of collection, on account of any Indebtedness the payment of
which is secured by any of the Financing Documents, whether or not then due, or,
notwithstanding the claims of any subsequent lien or, be used or paid over to
Borrower in accordance with reasonable procedures established by the Agent for
use in repairing or replacing any damaged or destroyed collateral under any of
the Security Documents.

          SECTION 5.1.3. PRESERVATION OF EXISTENCE, ETC. Preserve and maintain
in full force and effect its legal existence, and all material rights,
franchises and privileges in the jurisdiction of its organization, preserve and
maintain (except for sales of licenses or other scopes of use granted in the
ordinary course of Borrower's business consistent with past practice and
transactions permitted under Section 5.2.3) all material licenses, governmental
approvals, trademarks, patents, trade secrets, copyrights and trade names owned
or possessed by it and

<PAGE>
                                      -49-

which are necessary or, in the reasonable business judgment of Borrower,
desirable in view of its business and operations or the ownership of its
properties and qualify or remain qualified as a foreign corporation in each
jurisdiction in which such qualification is necessary or, in its reasonable
business judgment, desirable in view of its business and operations and
ownership of its properties except where the failure to so qualify will not have
a Material Adverse Effect.

          SECTION 5.1.4. COMPLIANCE WITH LAWS, ETC. Comply in all material
respects with the requirements of all present and future applicable laws, rules,
regulations and orders of any governmental authority having jurisdiction over it
and/or its business including, without limitation, regulations of the United
States Copyright Office and the Copyright Royalty Tribunal, except where the
failure to comply would not have a Material Adverse Effect.

          SECTION 5.1.5. VISITATION RIGHTS. Permit, at reasonable intervals
during normal business hours and upon the giving of reasonable notice, the
Agent, the Lenders and any agents or representatives thereof, to examine and
make copies of (at Borrower's cost and expense) and abstracts from the records
and books of account of, and visit the properties of Borrower and any Subsidiary
to discuss the affairs, finances and accounts of Borrower or any Subsidiary with
any of its officers or management level employees and/or any independent
certified public accountant of Borrower and/or any Subsidiary.

          SECTION 5.1.6. KEEPING OF RECORDS AND BOOKS OF ACCOUNT. Keep adequate
records and books of account, in which complete entries will be made in
accordance with GAAP and with applicable requirements of any governmental
authority having jurisdiction over Borrower and/or any Subsidiary in question,
reflecting all financial transactions.

          SECTION 5.1.7. MAINTENANCE OF PROPERTIES, ETC. Except as explicitly
permitted by this Agreement, maintain and preserve all of its properties
necessary or useful in the proper conduct of its business, in good working order
and condition, ordinary wear and tear excepted, and in accordance with each of
the Security Documents.

          SECTION 5.1.8. POST-CLOSING ITEMS. Complete in a timely fashion all
actions required in the Post-Closing Letter.

          SECTION 5.1.9. OTHER DOCUMENTS, ETC. Except as otherwise required by
this Agreement, pay, perform and fulfill all of its obligations and covenants
under each material document, instrument or agreement to which it is a party
including, without limitation, the Related Transaction Documents; provided that
so long as Borrower or any Subsidiary is contesting any claimed default by it or
them under any of the foregoing by proper proceedings conducted in good faith
and for which any proper reserve or other provision in accordance with and to
the extent required by GAAP has been made, such default shall not be deemed a
violation of this covenant, provided further that it shall not be a default of
this covenant if such default under another document, instrument or agreement
would not reasonably be expected to create a Material Adverse Effect.

<PAGE>
                                      -50-

          SECTION 5.1.10. MINIMUM DEBT SERVICE COVERAGE RATIO/QUICK RATIO.
Maintain at the end of each fiscal quarter of Borrower either (i) a consolidated
Debt Service Coverage Ratio of not less than 1.25:1.0, or (ii) a consolidated
QUICK Ratio of not less than 1.15:1.0 for the fiscal quarter ending June 30,
2000, and thereafter, 1.25:1

          SECTION 5.1.11. MINIMUM INTEREST COVERAGE. Maintain a ratio of
consolidated EBITDA to consolidated Interest Expense of not less than 3:1, such
ratio to be measured at each Borrower fiscal quarter end for the rolling four
Borrower fiscal quarter period consisting of Borrower fiscal quarter then ending
and the three immediately preceding Borrower fiscal quarters based on PRO FORMA
Results.

          SECTION 5.1.12. MAXIMUM LEVERAGE RATIO. Maintain at the end of each
fiscal quarter of Borrower ending during each fiscal period identified below a
consolidated Leverage Ratio of not greater than the ratio set forth opposite
such fiscal period:

--------------------------------------- ---------------------------------------
      Fiscal Period Ending                         Maximum Ratio
--------------------------------------- ---------------------------------------
        6/30/00 - 9/30/00                              2.25:1
--------------------------------------- ---------------------------------------
     12/31/00 and thereafter                           2.00:1
--------------------------------------- ---------------------------------------

          SECTION 5.1.13. MINIMUM EBITDA. Maintain at the end of each fiscal
quarter of Borrower consolidated EBITDA of not less than $2,500,000.

          SECTION 5.1.14. OFFICER'S CERTIFICATES AND REQUESTS Provide each
Officer's Certificate required under this Agreement and each Request so that the
statements contained therein are accurate and complete in all material respects.

          SECTION 5.1.15. DEPOSITORY AND INVESTMENT ACCOUNTS. Within ninety (90)
days of the date of this Agreement, establish and maintain with the Agent
deposit and investment accounts for not less than one-half of the Borrower's
cash on hand or on deposit in any deposit account, investment account or any
other account with any depository or other financial institution located in one
of the contiguous states of the United States of America or Hawaii, excluding
amounts held in any account for payments of payroll, taxes or other obligations
to third parties.

          SECTION 5.1.16. Reserved.

          SECTION 5.1.17. ADDITIONAL ASSURANCES. From time to time hereafter,
execute and deliver or cause to be executed and delivered, such additional
instruments, certificates and documents, and take all such actions, as the Agent
shall reasonably request for the purpose of implementing or effectuating the
provisions of the Financing Documents, and upon the exercise by the Agent of any
power, right, privilege or remedy pursuant to the Financing Documents which
requires any consent, approval, registration, qualification or authorization of
any

<PAGE>
                                      -51-

governmental authority or instrumentality, exercise and deliver all
applications, certifications, instruments and other documents and papers that
the Agent may be so required to obtain.

          SECTION 5.1.18. APPRAISALS. Permit the Agent and its agents, at any
time and in the sole discretion of the Agent or at the request of the Majority
Lenders, to conduct appraisals of Borrower's business, the cost of which shall
be borne by Borrower.

          SECTION 5.1.19. ENVIRONMENTAL COMPLIANCE. Comply in all material
respects with the requirements of all federal, state, and local environmental
laws, except where the failure to so comply could not be reasonably expected to
have a Material Adverse Effect; notify the Lenders promptly in the event of any
spill of Hazardous Material materially affecting the Premises occupied by
Borrower from time to time; forward to the Lenders promptly any written notices
relating to such matters received from any governmental agency; and pay promptly
when due any uncontested fine or assessment against the Premises.

          SECTION 5.1.20. REMEDIATION. Promptly contain and remove any Hazardous
Material found on the Premises in compliance with applicable laws and at
Borrower's expense, subject, however, to the right of the Agent, at the Agent's
option but at Borrower's expense, to have an environmental engineer or other
representative review the work being done.

          SECTION 5.1.21. SITE ASSESSMENTS. Promptly upon the request of the
Agent, based upon the Agent's reasonable belief that a material Hazardous Waste
or other environmental problem exists with respect to any Premises, provide the
Agent with a Phase I environmental site assessment report and, if Agent finds a
reasonable basis for further assessment in such Phase I assessment, a Phase II
environmental site assessment report, or an update of any existing report, all
in scope, form and content and performed by such company as may be reasonably
satisfactory to the Agent.

          SECTION 5.1.22. INDEMNITY. Indemnify, defend, and hold the Agent and
the Lenders harmless from and against any claim, cost, damage (including without
limitation consequential damages), expense (including without limitation
reasonable attorneys' fees and expenses), loss, liability, or judgment now or
hereafter arising as a result of any claim for environmental cleanup costs, any
resulting damage to the environment and any other environmental claims against
Borrower, any Subsidiary, the Lenders and/or the Agent arising out of the
transactions contemplated by this Agreement, or any of the Premises. The
provisions of this Section shall continue in effect and shall survive (among
other events), until the applicable statute of limitations has expired, any
termination of this Agreement, foreclosure, a deed in lieu transaction, payment
and satisfaction of the Obligations of Borrower, and release of any collateral
for the Loans.

          SECTION 5.1.23. TRADEMARKS, COPYRIGHTS, ETC. Concurrently with the
acquisition of any registered trademark, registered tradename, registered
copyright, patent or service mark collaterally assign and grant a first priority
perfected Lien thereon to the Agent pursuant to documents in form and substance
reasonably satisfactory to the Agent.

<PAGE>
                                      -52-

          SECTION 5.1.24. MAINTENANCE OF ESCROW. Comply with all of the terms
and conditions of a software escrow agreement to be entered into among Borrower,
Agent and the escrow agent thereunder, which will, at the election of Agent, be
based on the existing software escrow arrangements of Borrower (if any) or on a
form of software escrow agreement and with a software escrow agent reasonably
acceptable to Agent, providing copies of Borrower's source code to Agent for the
benefit of the Lenders upon the occurrence of an Event of Default. Borrower's
compliance with such software escrow agreement will include, without limitation,
the payment of all amounts due thereunder and the requirement to deposit
modifications, updates, new releases or documentation related to previously
deposited materials.

          SECTION 5.1.25 MATERIAL FOREIGN SUBSIDIARIES. WITHIN SIXTY (60) DAYS
OF THE DATE OF THIS AGREEMENT, DELIVER TO AGENT stock pledge agreements and such
other documentation, including, without limitation, stock powers and other
instruments of transfer and/or assignment as Agent may reasonably request, in
form and substance reasonably satisfactory to Agent pursuant to which the Agent
is granted a first priority lien on 65% of Borrower's equity interests in each
of the Material Foreign Subsidiaries constituting valid and enforceable first
priority perfected Liens, superior to and prior to the rights of all third
Persons and subject to no other Liens, in favor of Agent (or such other trustee
or sub-agent as may be required or desired under local law) for the ratable
benefit of Agent and Lenders. In addition, Borrower will cause to be delivered
to Agent legal opinions from local counsel authorized to practice law in the
jurisdiction of organization of each Material Foreign Subsidiary and acceptable
to Agent covering such matters as Agent may reasonably request in form, scope
and substance reasonably satisfactory to Agent which shall (x) be addressed to
Agent and each of Lenders, (y) cover various matters regarding the execution,
delivery and performance of the such pledge agreements, as well as the
perfection and priority of the pledges and such other matters incident thereto
as Agent may reasonably request, and (z) be in form, scope and substance
reasonably satisfactory to Agent. Agent shall also have received evidence that
such pledge Agreements or instruments related thereto shall have been duly
recorded or filed in such manner and in such places as are required by law to
create, maintain, effect, perfect, preserve, maintain and protect the pledges
evidenced thereby and all taxes, fees and other charges payable in connection
therewith shall be paid in full.

     SECTION 5.2. NEGATIVE COVENANTS OF BORROWER. From the date hereof and
thereafter for so long as there is Indebtedness of Borrower to any Lender and/or
the Agent under any of the Financing Documents or any part of the Commitment is
in effect, Borrower will not, with respect to itself and, unless noted otherwise
below, with respect to each of the Subsidiaries, will ensure that each such
Subsidiary will not, without the prior written consent of the Majority Lenders:

          SECTION 5.2.1. LIENS, ETC. Create, incur, assume or suffer to exist
any Lien of any nature, upon or with respect to any of its properties, now owned
or hereafter acquired, or assign as collateral or otherwise convey as
collateral, any right to receive income, except that the foregoing restrictions
shall not apply to any Liens:

               SECTION 5.2.1.1. For taxes, assessments or governmental charges
or levies on property if the same shall not at the time be delinquent or
thereafter can be paid without penalty or interest, or (if foreclosure,
distraint, sale or other similar proceedings shall not have

<PAGE>
                                      -53-

been commenced or if commenced not stayed, bonded or discharged within 30 days
after commencement) are being contested in good faith and by appropriate
proceedings diligently conducted and for which proper reserve or other provision
has been made in accordance with and to the extent required by GAAP;

               SECTION 5.2.1.2. Imposed by law, such as landlords', carriers',
warehousemen's and mechanics' liens, bankers' set off rights and other similar
Liens arising in the ordinary course of business for sums not yet due or being
contested in good faith and by appropriate proceedings diligently conducted and
for which proper reserve or other provision has been made in accordance with and
to the extent required by GAAP;

               SECTION 5.2.1.3. Arising in the ordinary course of business out
of pledges or deposits under worker's compensation laws, unemployment insurance,
old age pensions, or other social security or retirement benefits, or similar
legislation;

               SECTION 5.2.1.4. Arising from or upon any judgment or award,
provided that such judgment or award is being contested in good faith by proper
appeal proceedings and only so long as execution thereon shall be stayed;

               SECTION 5.2.1.5. Those set forth on EXHIBIT 1.8 provided that any
lien claimed by Sanwa Business Credit Corporation on account of an existing
UCC-1 financing statement shall not secure Indebtedness in excess of $44,000 and
Borrower shall not incur any Indebtedness to, or enter into any agreement with
Sanwa Business Credit Corporation after the Closing Date;

               SECTION 5.2.1.6. Those now or hereafter granted pursuant to the
Security Documents or otherwise now or hereafter granted to the Agent for the
benefit of the Lenders as collateral for the Loans and/or Borrower's other
Obligations arising in connection with or under any of the Financing Documents;

               SECTION 5.2.1.7. Deposits to secure the performance of bids,
trade contracts (other than for Borrowed Money), leases, statutory obligations,
surety bonds, performance bonds and other obligations of a like nature incurred
in the ordinary course of Borrower's or any Subsidiary's business;

               SECTION 5.2.1.8. Easements, rights of way, restrictions and other
similar encumbrances incurred in the ordinary course of business which, in the
aggregate, are not substantial in amount, and which do not in any case
materially detract from the value of the property subject thereto or materially
interfere with the ordinary conduct of business by any Borrower or any
Subsidiary;

               SECTION 5.2.1.9. Liens securing Indebtedness permitted to exist
under SECTION 5.2.8.3; provided that the Lien securing any such Indebtedness is
limited to the item of property purchased or leased in each case;

<PAGE>
                                      -54-

               SECTION 5.2.1.10. UCC-1 financing statements filed solely for
notice or precautionary purposes by lessors under operating leases which do not
secure Indebtedness and which are limited to the items of equipment leased
pursuant to the lease in question; and

               SECTION 5.2.1.11. UCC-1 financing statements in connection with
sales of revenue streams from product leases without recourse to Borrower.

          SECTION 5.2.2. ASSUMPTIONS, GUARANTIES, ETC. OF INDEBTEDNESS OF OTHER
PERSONS. Assume, guarantee, endorse or otherwise become directly or contingently
liable in connection with any obligation or Indebtedness of any other Person,
except:

               SECTION 5.2.2.1. Guaranties by endorsement of negotiable
instruments for deposit or collection or similar transactions in the ordinary
course of business;

               SECTION 5.2.2.2. Guaranties, not to exceed $500,000 in the
aggregate, of real and personal property leases of Subsidiaries.

               SECTION 5.2.2.3. Assumptions, guaranties, endorsements and
contingent liabilities within the definition of Indebtedness and permitted by
SECTION 5.2.8; and

               SECTION 5.2.2.4. Those set forth on EXHIBIT 5.2.2.4.

          SECTION 5.2.3. DISSOLUTION, MERGER, ETC. Dissolve, liquidate, wind up,
merge or consolidate or combine with another Person, except as permitted under
Section 5.2.21, or sell, assign, lease or otherwise dispose of (whether in one
transaction or in a series of transactions) any material assets (tangible or
intangible), whether now owned or hereafter acquired, other than (a) in the
ordinary course of business, (b) assets which, in the rolling four fiscal
quarters most recently ended, generated less than fifteen percent (15%) of
Borrower's Net Income and (c) rights to receive payment from customers.

          SECTION 5.2.4. CHANGE IN NATURE OF BUSINESS. Make any material change
in the nature of its business.

          SECTION 5.2.5. OWNERSHIP. Cause or permit the occurrence of any Change
of Control.

          SECTION 5.2.6. SALE AND LEASEBACK. Enter into any sale and leaseback
arrangement with any lender or investor, or enter into any leases except in the
normal course of business at reasonable rents comparable to those paid for
similar leasehold interests in the area.

          SECTION 5.2.7. SALE OF ACCOUNTS, ETC. Sell, assign, discount or
dispose in any way of any accounts receivable, promissory notes or trade
acceptances held by Borrower or any Subsidiary, with or without recourse, except
in the ordinary course of Borrower's or any Subsidiary's business.

<PAGE>
                                      -55-

          SECTION 5.2.8. INDEBTEDNESS. Incur, create, become or be liable
directly or indirectly in any manner with respect to or permit to exist any
Indebtedness except:

               SECTION 5.2.8.1. Indebtedness under the Financing Documents;

               SECTION 5.2.8.2. Indebtedness with respect to trade payable
obligations and other normal accruals and customer deposits in the ordinary
course of business not yet due and payable in accordance with customary trade
terms or with respect to which Borrower or any Subsidiary is contesting in good
faith the amount or validity thereof by appropriate proceedings and then only to
the extent such person has set aside on its books adequate reserves therefor in
accordance with and to the extent required by GAAP;

               SECTION 5.2.8.3. Indebtedness with respect to Capitalized Lease
Obligations and purchase money Indebtedness with respect to real or personal
property in an aggregate amount outstanding at any time not to exceed
$3,500,000; provided that the amount of any purchase money Indebtedness does not
exceed 90% of the lesser of the cost or fair market value of the asset purchased
with the proceeds of such Indebtedness;

               SECTION 5.2.8.4. Unsecured Indebtedness in an aggregate amount
outstanding at any time not to exceed $250,000, provided that Borrower may incur
an additional $750,000 (for a total of $1,000,000) only if such additional
amount is expressly subordinated to the Loans;

               SECTION 5.2.8.5. Indebtedness listed on EXHIBIT 3.1.1.8;

               SECTION 5.2.8.6. Indebtedness owing by Borrower to any Subsidiary
or by any Subsidiary to Borrower or any other Subsidiary; provided, however,
that any Indebtedness owing by Borrower or any Subsidiary to an Affiliate be
subordinated to the Obligations on terms and conditions satisfactory to the
Majority Lenders.

               SECTION 5.2.8.7. Indebtedness permitted by SECTION 5.2.2.

               SECTION 5.2.8.8. Indebtedness outstanding as a refinancing of
Indebtedness permitted under another clause of this SECTION 5.2.8 other than
SECTION 5.2.8.2; provided that such Indebtedness as refinanced continues to
qualify as permitted Indebtedness under the clause of this SECTION 5.2.8 under
which the refinanced Indebtedness was permitted under this SECTION 5.2.8.

               SECTION 5.2.8.9. Indebtedness permitted to be secured by a Lien
under SECTION 5.2.1.

               SECTION 5.2.9. OTHER AGREEMENTS. Amend any of the terms or
conditions of any of ,its certificate of incorporation, bylaws (or comparable
applicable charter or governance document), to require stockholder approval to
authorize a merger or sale of all or substantially all the assets of Borrower by
more than a simple majority of the shares of capital stock entitled to

<PAGE>
                                      -56-

vote or amend any subordination agreement or any indenture, agreement, document,
note or other instrument evidencing, securing or relating to any other
Indebtedness permitted under SECTION 5.2.8 in a manner materially adverse to the
Agent or any of the Lenders,.

               SECTION 5.2.10. PAYMENT OR PREPAYMENT OF EQUITY OR SUBORDINATED
DEBT. Make any payment or prepayment of any principal of or interest on or any
payment, prepayment, redemption, defeasance, sinking fund payment, other
repayment of principal or capital or deposit for the purpose of any of the
foregoing on or in connection with the Subordinated Debt, or any equity or
ownership interests in Borrower.

               SECTION 5.2.11. DIVIDENDS, PAYMENTS AND DISTRIBUTIONS. Declare or
pay any dividends, management fees or like fees or make any other distribution
of cash or property or both to any of the Stockholders other than compensation
for services rendered to Borrower and/or any Subsidiary or use any of its assets
for payment, purchase, conversion, redemption, retention, acquisition or
retirement of any beneficial interest in Borrower or set aside or reserve assets
for sinking or like funds for any of the foregoing purposes, make any other
distribution by reduction of capital or otherwise in respect of any beneficial
interest in Borrower or permit any Subsidiary which is not a wholly-owned
Subsidiary so to do; provided, however, that (i) in any fiscal year after the
Closing which has been immediately preceded by two full fiscal years in which
Borrower had at least $10,000,000 of consolidated Net Income, Borrower may
declare and pay a dividend in an aggregate amount not to exceed fifty percent
(50%) of the consolidated Net Income for the immediately preceding year, if and
only to the extent that both before and after such declaration and payment, no
Event of Default shall exist and be continuing and no circumstances shall exist
which, with notice or the passage of time, would constitute an Event of Default;
and (ii) Borrower may repurchase from any employee of Borrower or Subsidiary
whose employment with Borrower or such Subsidiary ceases any shares of the
capital stock of Borrower which were issued to such employee by Borrower as
restricted stock or pursuant to the exercise of a stock option.

               SECTION 5.2.12. INVESTMENTS/ACQUISITIONS.

                    SECTION 5.2.12.1. INVESTMENTS. Make or commit to make any
Investment in or to any other Person (including, without limitation, any
Subsidiary) other than (i) advances to employees for business expenses not to
exceed $10,000 in the aggregate outstanding for any one employee and not to
exceed $100,000 in the aggregate outstanding at any one time to all such
employees, (ii) other employee loans not to exceed $100,000 in the aggregate
outstanding at any one time to all such employees, (iii) Cash Equivalent
Investments, (iv) Indebtedness permitted under SECTION 5.2.8.6, (v) Investments
in accounts, contract rights and chattel paper (as defined in the Uniform
Commercial Code) and notes receivable, arising or acquired in the ordinary
course of business, (vi) recourse (but only to the extent of one-half of the
principal amount of each such note) promissory notes of officers and key
employees of Borrower made by such individuals to Borrower in consideration for
the issuance by Borrower of shares of restricted stock, or stock acquired upon
the exercise of stock options, which stock has been or will be pledged to
Borrower to secure such notes, and (vii) investments in Permitted Acquisitions;
and (viii) Borrower's $97,000 investment in

<PAGE>
                                      -57-

Transcendent Design, Inc.

                    SECTION 5.2.12.2. ACQUISITIONS. Enter, or commit to enter,
into any transaction, or series of related transactions, by which (i) Borrower
or any of its Subsidiaries acquires the business of, or any assets (other than
the purchase or other acquisition of inventory, materials and equipment in the
ordinary course of business) of, any Person other than a Subsidiary of Borrower,
or any division of such Person, located in a specific geographic area or areas,
whether through the purchase of assets, purchase of stock, merger or otherwise,
or (ii) any Person that was not theretofore a Subsidiary of Borrower becomes a
Subsidiary of Borrower (each, an "ACQUISITION") except for the PADS Acquisition
and the following additional permitted acquisitions (each a "PERMITTED
ACQUISITION") with respect to which the following conditions have been
satisfied:

                    SECTION 5.2.12.2.1. The total consideration to be paid does
not exceed either (i) $250,000 in cash, or (ii) $5,000,000 in capital stock of
the acquirer (such value to be based on the financial statements of Borrower
subsequently delivered by Borrower pursuant to SECTION 5.3 after the
consummation of such Acquisition, and certified in writing to the Agent and the
Lenders by an Authorized Representative with a detailed calculation of such
value), PROVIDED THAT THE SUM OF CLAUSES (I) AND (II) OF THIS SECTION 5.2.12.2.1
SHALL NOT EXCEED $5,000,000 in the aggregate with respect to such Acquisition,
and (iii) after giving effect to such Acquisition, $5,000,000 in the aggregate
with respect to all Acquisitions during any fiscal year of Borrower.

                    SECTION 5.2.12.2.2. Such Acquisition has been approved by
the board of directors (or functional equivalent thereof) and the shareholders
(if required by applicable law) of the Person whose stock or assets are being
acquired;

                    SECTION 5.2.12.2.3. The Person or assets being acquired are
in the same or a similar or complementary line of business as Borrower, and
after giving effect to such Acquisition, the assets ACQUIRED will not be
encumbered by any Lien other than a Permitted Lien;

                    SECTION 5.2.12.2.4. The Borrower has provided the Agent with
fifteen (15) days prior written notice of such Acquisition, which notice shall
include a reasonably detailed description of SUCH Acquisition, and, as and when
available, copies of all acquisition documents executed, or to be executed, in
connection therewith together with such other information as and when the Agent
may reasonably request;

                    SECTION 5.2.12.2.5. Both immediately before and after giving
effect to such Acquisition, no Default or Event of Default exists after giving
effect to any adjustments permitted by SECTION 5.2.12.2.8 with regard to such
Acquisition;

                    SECTION 5.2.12.2.6. After giving effect to any such
Acquisition of any Person (to which Borrower is a party), Borrower will be the
surviving entity;

<PAGE>
                                      -58-

                    SECTION 5.2.12.2.7. Promptly following the consummation of
the Acquisition, Borrower provides, or causes to be provided or granted to the
Agent, a first priority perfected Lien on the assets or equity interests
acquired, and, in connection with an Acquisition of any Subsidiary, a pledge of
100% of all of the issued and outstanding shares of stock of any Domestic
Subsidiary, 65% of all of the issued and outstanding shares of stock of any
Material Foreign Subsidiary, an unlimited guaranty and a security agreement
executed by the Subsidiary in which such equity interests are acquired (if such
is the case), together with a perfection certificate, and UCC Search Reports for
all locations noted thereon, and all Uniform Commercial Code Financing
Statements on Form 1 and Form 3 required by the Agent, or such other forms as
the Agent may require, landlord waivers (if requested by the Agent), evidence of
insurance, any additional Security Document required by SECTION 5.1.23 and
SECTION 5.1.24 of this Agreement, and, if requested by the Agent, an opinion of
counsel to such Subsidiary acceptable to Agent, each in form and substance
satisfactory to the Agent and its counsel;

                    SECTION 5.2.12.2.8. At least five (5) Business Days prior to
the consummation of any such Acquisition, Borrower shall have delivered to the
Agent a PRO FORMA balance sheet and a related Compliance Certificate prepared on
a consolidated basis (including the to-be-acquired assets and any assumed
liabilities, or if equity interests are acquired, the to-be-acquired Person if
such Person is to be a Subsidiary, and if not, the to-be-acquired equity
interests, all measured as set forth below), which certificate shall indicate
that no Default or Event of Default exists or would exist following consummation
of the permitted transaction, and that Borrower would be, in compliance (on a
consolidated basis including the to-be-acquired assets and any assumed
liabilities or if equity interests are acquired, the to-be-acquired PERSON if
such Person is to be a Subsidiary, and, if not, the to-be-acquired equity
interests), with SECTIONS 5.1.10, 5.1.11 AND 5.1.12 of this Agreement (and any
other financial covenant at any time contained in this Agreement) following
consummation of such Acquisition, including the to-be-acquired assets, Person or
equity interests and the operating results thereof on the same basis and for the
same periods as Borrower is measured for each such covenant, respectively, after
giving effect to any adjustments to the historical operating results of any
to-be-acquired Person or equity interests resulting from actual and then planned
verifiable changes to be made by Borrower with respect to such Person (including
any Person in which equity interests are to-be-acquired).

               SECTION 5.2.13. Transactions with Affiliates. Except as set forth
on EXHIBIT 5.2.13, engage in any transaction or enter into any agreement with an
Affiliate, or in the case of Affiliates or Subsidiaries, with Borrower or
another Affiliate or Subsidiary, except in the ordinary course of business, as
permitted by any other provision of this Agreement and then only on terms no
less favorable to Borrower than those that would be obtainable an arm's length
basis.

               SECTION 5.2.14. CHANGE OF FISCAL YEAR. Change its accounting
policies, or reporting practices from those in effect on the Closing Date, or
change its fiscal year from the 52/53 week period ending on the Saturday closest
to December 31st.

<PAGE>
                                      -59-

               SECTION 5.2.15. SUBORDINATION OF CLAIMS Subordinate any present
or future claim against or obligation of another Person, except as ordered in a
bankruptcy or similar creditors' remedy proceeding of such other Person.

               SECTION 5.2.16. COMPLIANCE WITH ERISA. With respect to Borrower
and any Commonly Controlled Entity (a) withdraw from or cease to have an
obligation to contribute to, any Multiemployer Plan so as to result in any
material liability of Borrower or any Commonly Controlled Entity to PBGC or to
any Multiemployer Plan, (b) engage in any "prohibited transaction" (as defined
in Section 4975 of the Code) involving any Plan which would result in a material
liability of Borrower or any Commonly Controlled Entity for an excise tax or
civil penalty in connection therewith, (c) except for any deficiency caused by a
waiver of the minimum funding requirement under sections 412 and/or 418 of the
Code, as described above, incur or suffer to exist any material "accumulated
funding deficiency" (as defined in Section 302 of ERISA and Section 412 of the
Code) of Borrower or any Commonly Controlled Entity, whether or not waived,
involving any Single Employer Plan, (d) incur or suffer to exist any Reportable
Event or the appointment of a trustee or institution of proceedings for
appointment of a trustee for any Single Employer Plan if, in the case of a
Reportable Event, such event continues unremedied for ten (10) days after notice
of such Reportable Event pursuant to sections 4043(a), (c) or (d) of ERISA is
given, if in the reasonable opinion of the Majority Lenders any of the foregoing
is likely to result in a material liability of Borrower or any Commonly
Controlled Entity, (e) permit the assets held under any Plan to be insufficient
to protect all accrued benefits, (f) allow or suffer to exist any event or
condition, which presents a material risk of incurring a material liability of
Borrower or any Commonly Controlled Entity to PBGC by reason of termination of
any such Plan or (g) cause or permit any Plan maintained by Borrower and/or any
Commonly Controlled Entity to be out of compliance with ERISA. For purposes of
this SECTION 5.2.16 "material liability" shall be deemed to mean any liability
of Fifty Thousand Dollars ($50,000) or more in the aggregate.

               SECTION 5.2.17. CAPITAL EXPENDITURES. Incur consolidated Capital
Expenditures in excess of the amount set forth below for each fiscal year of the
Borrower , PROVIDED that Borrower shall make its Capital Expenditures
substantially in accordance with and for the purposes outlined in the Budget for
Borrower's fiscal year in question:

------------------------------------------- ------------------------------------
            Fiscal Year Ending                  Maximum Capital Expenditures
------------------------------------------- ------------------------------------
                12/31/00                                 $4,000,000
------------------------------------------- ------------------------------------
                12/31/01                                 $4,800,000
------------------------------------------- ------------------------------------
                12/31/02                                 $5,760,000
------------------------------------------- ------------------------------------
                12/31/03                                 $5,875,200
------------------------------------------- ------------------------------------

               SECTION 5.2.18. HAZARDOUS WASTE. Become involved, or permit, to
the extent reasonably possible after the exercise by Borrower of reasonable due
diligence and preventive efforts, any tenant of its real property to become
involved, in any operations at such real property generating, storing,
disposing, or handling Hazardous Material or any other activity that could

<PAGE>
                                      -60-

lead to the imposition on Borrower or the Agent or any Lender, or any such real
property of any material liability or Lien under any environmental laws.

               SECTION 5.2.19. OTHER RESTRICTIONS ON LIENS OR DIVIDENDS. Enter
into any agreement or otherwise agree to or grant any restriction substantially
similar to the provisions of SECTION 5.2.1 hereof or which would otherwise have
the effect of prohibiting, restricting, impeding or interfering with the
creation subsequent to the Closing Date of Liens to secure the Obligations.

               SECTION 5.2.20. LIMITATION ON CREATION/ACQUISITION OF
SUBSIDIARIES, ETC. Except as permitted under Section 5.2.12, establish, create
or acquire any Subsidiary or become the general partner in any general
partnership.

               SECTION 5.2.21. SUBSIDIARY MERGER, ETC. Borrower will not permit
any Subsidiary to consummate any merger or consolidation with any other Person,
provided that any wholly-owned Subsidiary may be merged into Borrower or into
another wholly-owned Subsidiary if (i) Borrower or such other wholly-owned
Subsidiary is the surviving Person of such merger and is Solvent (both at the
time of and immediately after giving effect thereto), (ii) Borrower or such
other wholly-owned Subsidiary shall deliver to the Agent such opinions,
confirmations and other agreements and instruments as the majority of the
Lenders shall have reasonably requested, and (iii) both at the time of and
immediately after giving effect to such transaction, no Event of Default shall
have occurred and be continuing and no circumstances shall exist which, with
notice or the passage of time, would constitute an Event of Default. The
transactions permitted by this SECTION 5.2.21 shall not have the effect of
releasing Borrower or any other party to any of the Financing Documents from any
Obligation.

               SECTION 5.2.22. BORROWER MERGERS, ETC.. Concurrently with any
merger of Borrower consented to by the Majority Lenders with or into any Person
pursuant to which any Person, other than an individual, will hold an equity
interest in Borrower (each such Person, a "Post-Merger Shareholder"), if
requested by Agent, Borrower shall within thirty (30) days after any such
merger, execute and deliver, and cause each Post-Merger Shareholder to execute
and deliver, to Agent an amendment to this Agreement (or an amended and restated
agreement executed in substitution for this Agreement) pursuant to which such
Post-Merger Shareholder shall become an additional "Borrower" hereunder jointly
and severally liable for the Obligations and new Notes (collectively, the "NEW
CREDIT DOCUMENTS") and grant Liens ("ADDITIONAL LIENS") in substantially all
assets of each such Post-Merger Shareholder. All such Additional Liens shall be
provided and/or granted pursuant to documentation in form and substance
reasonably satisfactory to Agent (all such documentation, collectively, the
"ADDITIONAL SECURITY DOCUMENTS") and such Liens shall constitute valid and
enforceable first priority perfected Liens, superior to and prior to the rights
of all third Persons and subject to no other Liens (except Permitted
Encumbrances at the time of perfection thereof), in favor of Agent (or such
other trustee or sub-agent as may be required or desired under local law) for
the ratable benefit of Agent and Lenders. In addition, Borrower will cause to be
delivered to Agent legal opinions from counsel to Borrower and each such
Post-Merger Shareholder covering such matters as Agent may reasonably request in
form, scope and substance reasonably satisfactory to Agent

<PAGE>
                                      -61-

which shall (x) be addressed to Agent and each of Lenders, (y) cover various
matters regarding the execution, delivery and performance of the New Credit
Documents and the Additional Security Documents, as well as the perfection and
priority of the Liens granted by Borrower and such Post-Merger Shareholder
(including, without limitation, the Additional Liens) and such other matters
incident thereto as Agent may reasonably request, and (z) be in form, scope and
substance reasonably satisfactory to Agent. All such Liens or instruments
related thereto shall be duly recorded or filed in such manner and in such
places as are required by law to create, maintain, effect, perfect, preserve,
maintain and protect such Liens and all taxes, fees and other charges payable in
connection therewith shall be paid in full.

     SECTION 5.3 REPORTING REQUIREMENTS. From the date hereof and thereafter for
so long as Borrower is indebted to any Lender and/or the Agent under any of the
Financing Documents, Borrower will, unless the Majority Lenders shall otherwise
consent in writing, furnish or cause to be furnished to the Agent for
distribution to the Lenders:

               SECTION 5.3.1. As soon as possible and in any event upon
acquiring knowledge of an Event of Default or Default, continuing on the date of
such statement, the written statement of an Authorized Representative setting
forth details of such Event of Default or Default and the actions which Borrower
has taken and proposes to take with respect thereto;

               SECTION 5.3.2. As soon as practicable after the end of each
Borrower fiscal year and in any event within 90 days after the end of each such
fiscal year, consolidated balance sheets of Borrower and any Subsidiaries as at
the end of such year, and the related consolidated statements of income and cash
flows or shareholders' equity of Borrower and any Subsidiaries setting forth in
each case the corresponding figures for the preceding fiscal year, such
statements to be certified by a firm of independent certified public accountants
selected by Borrower and reasonably acceptable to the Majority Lenders, to be
accompanied by a true copy of said auditors' management letter, if one was
provided to Borrower, and to contain a statement to the effect that such
accountants have examined SECTIONS 5.1.10 through 5.1.13 and 5.2.17 and that as
of the date of such financial statements no Default or Event of Default exists
on account of Borrower's failure to have been in compliance therewith on the
date of such statement;

               SECTION 5.3.3. As soon as is practicable after the end of each
fiscal month of each Borrower fiscal year and in any event within 21 days
thereafter, consolidated balance sheets of Borrower and any Subsidiaries as of
the end of such period and the related consolidated statements of income and
cash flows and shareholders' equity of Borrower and any Subsidiaries, subject to
changes resulting from year-end adjustments, together, subject to SECTION 5.3.7,
with a comparison to the Budget for the applicable period, such balance sheets
and statements to be prepared and certified by an Authorized Representative in
an Officer's Certificate as having been prepared in accordance with GAAP except
for footnotes and year-end adjustments, and to be in form reasonably
satisfactory to the Agent;

               SECTION 5.3.4. Simultaneously with the furnishing of each of the
year-end consolidated financial statements of Borrower and any Subsidiaries to
be delivered pursuant to SECTION 5.3.2 and each of the consolidated quarterly
statements of Borrower and the Subsidiaries

<PAGE>
                                      -62-

to be delivered pursuant to SECTION 5.3.3, an Officer's Certificate of an
Authorized Representative which shall contain a statement in the form of EXHIBIT
3.1.1.10 to the effect that no Event of Default or Default has occurred, without
having been waived in writing, or if there shall have been an Event of Default
not previously waived in writing pursuant to the provisions hereof, or a
Default, such Officer's Certificate shall disclose the nature thereof and the
actions Borrower has taken and prepare to take with respect thereto. Each such
Officer's Certificate shall also contain a calculation of and certify to the
accuracy of the amounts required to be calculated in the financial covenants of
Borrower contained in this Agreement and described in EXHIBIT 3.1.1.10 and
identify all Material Foreign Subsidiaries as of the date of such Officer's
Certificate;

               SECTION 5.3.5. Promptly after the commencement thereof, notice of
all material actions, suits and proceedings before any court or governmental
department, commission, board, bureau, agency or instrumentality, domestic or
foreign, affecting Borrower and/or any Subsidiary;

               SECTION 5.3.6. On or before January 31 of each fiscal year of
Innoveda, an updated proposed budget, prepared on a quarterly basis, and updated
financial projections for Innoveda and its Subsidiaries on a consolidated basis
(together, the "BUDGET") for such fiscal year, setting forth in reasonable
detail the projected results of operations of Innoveda and its Subsidiaries on a
consolidated quarterly basis, detailed Capital Expenditures plan and stating
underlying assumptions and accompanied by a written statement of an Authorized
Representative certifying as to the approval of such Budget by Innoveda's board
of directors.

               SECTION 5.3.7. Such other information respecting the Business
Condition of Borrower or any Subsidiaries as the Agent or any Lender may from
time to time reasonably request including, but not limited to, consolidating
financial statements;

               SECTION 5.3.8. Written notice of the fact and of the details
of any sale or transfer of any ownership interest in Borrower or any Subsidiary
given promptly after Borrower acquires knowledge thereof; provided, however,
that this clause shall not be deemed to constitute or imply any consent to any
such sale or transfer;

               SECTION 5.3.9. Prompt written notice of loss of any key
personnel or any Material Adverse Effect and an explanation thereof and of the
actions Borrower and/or such Subsidiary propose to take with respect thereto;

               SECTION 5.3.10. Written notice of the following events, as
soon as possible and in any event within 15 days after Borrower knows or has
reason to know thereof: (i) the occurrence or expected occurrence of any
Reportable Event with respect to any Plan, or (ii) the institution of
proceedings or the taking or expected taking of any other action by PBGC or
Borrower or any Commonly Controlled Entity to terminate, withdraw or partially
withdraw from any Plan and, with respect to any Multiemployer Plan, the
Reorganization (as defined in Section 4241 of ERISA) or Insolvency (as defined
in Section 4245 of ERISA) of such Multiemployer Plan and in addition to such
notice, deliver to the Agent whichever of the following may be applicable: (a)
an Officer's Certificate setting forth details as to such Reportable Event and
the action that Borrower or Commonly Controlled Entity proposes to take with
respect thereto, together with a

<PAGE>
                                      -63-

copy of any notice of such Reportable Event that may be required to be filed
with PBGC, or b) any notice delivered by PBGC evidencing its intent to institute
such proceedings or any notice to PBGC that such Plan is to be terminated, as
the case may be;

               SECTION 5.3.11. Concurrently with any Request for a Revolving
Credit Loan which exceeds, or which when aggregated with all other then
outstanding Revolving Credit Loans would exceed, $2,000,000 and within fifteen
(15) days of the end of each month ending thereafter until such time as the
aggregate outstanding amount of Revolving Credit Loans is reduced to $2,000,000
or less, a Borrowing Base Certificate and an accounts receivable ageing report
in form and detail reasonably satisfactory to Agent; and

               SECTION 5.3.12. Written notice of the entering into by
Borrower of any contract with the United States of America or any state,
political subdivision, department, agency or instrumentality thereof which
gives, or will give, rise to a Receivable of Borrower, which notice shall be
accompanied by three originals of an assignment and notice of assignment,
substantially in the form of Exhibit 5.3.12 hereto, or such other form(s) as
Agent may require, shall have been completed and executed by Borrower.

                                   ARTICLE VI

                                EVENTS OF DEFAULT

     SECTION 6.1. EVENTS OF DEFAULT. The Borrower shall be in default under each
of the Financing Documents, upon the occurrence of any one or more of the
following events ("Events of Default"):

               SECTION 6.1.1. If Borrower shall fail to make due and punctual
payment of any principal, fees, interest and/or other amounts payable under this
Agreement as provided in any Note and/or in this Agreement when the same is due
and payable except that it shall not be an Event of Default if any interest,
fees and/or other amounts (excluding principal) is paid within 5 Business Days
after it is due and payable, whether at the due date thereof or at a date fixed
for prepayment or if Borrower shall fail to make any such payment of fees,
interest, principal and/or any other amount under this Agreement and/or under
any Note on the date when such payment becomes due and payable by acceleration;

               SECTION 6.1.2. If Innoveda or any Subsidiary shall make an
assignment for the benefit of creditors, or shall fail generally to pay its
debts as they become due, or shall admit in writing its inability to pay its
debts as they become due or shall file a voluntary petition in bankruptcy, or
shall file any petition or answer seeking any reorganization, arrangement,
composition, adjustment, liquidation, dissolution or similar relief under the
present or any future federal bankruptcy laws or other applicable federal, state
or other statute, law or regulation, or shall seek or consent to or acquiesce in
the appointment of any trustee, receiver or liquidator of it or of all or any
substantial part of its properties, or if partnership or corporate action shall
be taken for the purpose of effecting any of the foregoing; or

<PAGE>
                                      -64-

               SECTION 6.1.3. To the extent not described in SECTION 6.1.2,
(i) if Innoveda or any Subsidiary shall be the subject of a bankruptcy
proceeding, or (ii) if any proceeding against any of them seeking any
reorganization, arrangement, composition, adjustment, liquidation, dissolution,
or similar relief under the present or any future federal bankruptcy law or
other applicable federal, foreign, state or other statute, law or regulation
shall be commenced, or (iii) if any trustee, receiver or liquidator of any of
them or of all or any substantial part of any or all of their properties shall
be appointed without their consent or acquiescence; provided that in any of the
cases described above in this SECTION 6.1.3, such proceeding or appointment
shall not be an Event of Default if Borrower or the Subsidiary in question shall
cause such proceeding or appointment to be discharged, vacated, dismissed or
stayed within sixty (60) days after commencement thereof; or

               SECTION 6.1.4. If final judgment or judgments aggregating more
than $500,000 shall be rendered against Innoveda or any Subsidiary and shall
remain undischarged, unstayed or unpaid for an aggregate of thirty (30) days
(whether or not consecutive) after entry thereof; or

               SECTION 6.1.5. If Innoveda or any Subsidiary shall default
(after giving effect to any applicable grace period) in the due and punctual
payment of the principal of or interest on any Indebtedness exceeding in the
aggregate $1,000,000 (other than the Loans), or if any default shall have
occurred and be continuing after any applicable grace period under any mortgage,
note or other agreement evidencing, securing or providing for the creation of
such Indebtedness, which results in the acceleration of such Indebtedness or
which permits, or with the giving of notice would permit, any holder or holders
of any such Indebtedness to accelerate the stated maturity thereof; or

               SECTION 6.1.6. If there shall be a default in the performance
of Borrower's obligations under SECTION 5.1.3 (insofar as such Section requires
the preservation of the corporate existence of Borrower), any of SECTIONS 5.1.10
through 5.1.13 or SECTIONS 5.2.1, 5.2.3, 5.2.8 OR 5.2.11 of this Agreement; or

               SECTION 6.1.7. If there shall be any Default in the
performance of any covenant or condition contained in this Agreement or in any
of the other Financing Documents to be observed or performed pursuant to the
terms hereof or any Financing Document, as the case may be, other than a
covenant or condition referred to in any other subSection of this SECTION 6.1
and such Default shall continue unremedied or unwaived, (i) in the case of any
covenant or condition contained in SECTIONS 5.2 OR 5.3, for fifteen (15)
Business Days, or (ii) in the case of any other covenant or condition for which
no other grace period is provided, for thirty (30) days, or (iii) in the case of
any other covenant or condition for which another grace period is provided, for
such grace period, or (iv) if any of the representations and warranties made or
deemed made by Borrower to the Agent and/or any Lender pursuant to any of the
Financing Documents proves to have been false or misleading in any material
respect when made and such falseness or misleading representation or warranty
would be reasonably likely to have a material adverse effect on the Agent or any
Lender or their rights and remedies or a Material Adverse Effect; or

<PAGE>
                                      -65-

               SECTION 6.1.8. If there shall be any attachment of any
deposits or other property of Borrower and/or any Subsidiary in the possession
of any Lender or any attachment of any other property of Borrower and/or any
Subsidiary in an amount exceeding $1,000,000, which shall not be discharged,
vacated or stayed within thirty (30) days of the date of such attachment; or

               SECTION 6.1.9. Any certification of the financial statements,
furnished to the Agent pursuant to SECTION 5.3.2, shall contain any
qualification; provided, however, that such qualifications will not be deemed an
Event of Default if in each case (i) such certification shall state that the
examination of the financial statements covered thereby was conducted in
accordance with generally accepted auditing standards, including but not limited
to all such tests of the accounting records as are considered necessary in the
circumstances by the independent certified public accountants preparing such
statements, (ii) such financial statements were prepared in accordance with GAAP
and (iii) such qualification does not involve the "going concern" status of the
entity being reported upon.

                                   ARTICLE VII

                               REMEDIES OF LENDERS

     Upon the occurrence and during the continuance of any one or more of the
Events of Default, the Agent, at the request of the Majority Lenders, shall, by
written notice to Borrower, declare the obligation of the Lenders to make or
maintain the Loans to be terminated, whereupon the same and the Commitment shall
forthwith terminate, and the Agent, at the request of the Majority Lenders,
shall, by notice to Borrower, declare the entire unpaid principal amount of each
Note and all fees and interest accrued and unpaid thereon and/or under this
Agreement, and/or any of the other Financing Documents and any and all other
Indebtedness under this Agreement, each Note and/or any of the other Financing
Documents to the Agent and/or any of the Lenders and/or to any holder of all or
any portion of each Note to be forthwith due and payable, whereupon each Note,
and all such accrued fees and interest and other such Indebtedness shall become
and be forthwith due and payable, without presentment, demand, protest or
further notice of any kind, all of which are hereby expressly waived by
Borrower; provided, however, that upon the occurrence of an Event of Default
under SECTIONS 6.1.2 or 6.1.3, all of the unpaid principal amount of each Note,
all fees and interest accrued and unpaid thereon and/or under this Agreement
and/or under any of the other Financing Documents and any and all other such
Indebtedness of Borrower to any of the Lenders and/or to any such holder shall
thereupon be due and payable in full without any need for the Agent and/or any
Lender to make any such declaration or take any action and the Lenders'
obligations to make the Loans shall simultaneously terminate. The Agent shall,
in accordance with the votes of the Majority Lenders, exercise all remedies on
behalf of and for the account of each Lender and on behalf of its respective Pro
Rata Share of the Loans, its Note and Indebtedness of Borrower owing to it or
any of the foregoing, including, without limitation, all remedies available
under or as a result of this Agreement, the Notes or any of the other Financing
Documents or any other document, instrument or agreement now or hereafter
securing any Note without any such exercise being deemed to modify in any way
the fact that each Lender shall be deemed a separate creditor of

<PAGE>
                                      -66-

Borrower to the extent of its Note and Pro Rata Share of the Loans and any other
amounts payable to such Lender under this Agreement and/or any of the other
Financing Documents and the Agent shall be deemed a separate creditor of
Borrower to the extent of any amounts owed by Borrower to the Agent.

                                  ARTICLE VIII

                                      AGENT

     SECTION 8.1. APPOINTMENT. The Agent is hereby appointed as administrative
and collateral agent, hereunder and each Lender hereby authorizes the Agent to
act under the Financing Documents as its Agent hereunder and thereunder,
respectively. The Agent agrees to act as such upon the express conditions
contained in this Article VIII. The provisions of this Article VIII are solely
for the benefit of the Agent, and, except as expressly provided in SECTION 8.6,
neither Borrower nor any third party shall have any rights as a third party
beneficiary of any of the provisions hereof. In performing its functions and
duties under this Agreement and the other Financing Documents to which the Agent
is a party, the Agent shall act solely as Agent of the Lenders and does not
assume nor shall the Agent be deemed to have assumed any obligation towards or
relationship of agency or trust with or for Borrower, any of the Stockholders,
any Affiliate or any Subsidiary.

     SECTION 8.2. POWERS; GENERAL IMMUNITY

               SECTION 8.2.1. DUTIES SPECIFIED. Each Lender irrevocably
authorizes the Agent to take such action on such Lender's behalf, including,
without limitation, to execute and deliver the Financing Documents to which the
Agent is a party and to exercise such powers hereunder and under the Financing
Documents and other instruments and agreements referred to herein as are
specifically delegated to the Agent by the terms hereof and thereof, together
with such powers as are reasonably incidental thereto. The Agent shall have only
those duties and responsibilities which are expressly specified in this
Agreement or in any of the Financing Documents and may perform such duties by or
through its agents or employees. The duties of the Agent shall be mechanical and
administrative in nature; and the Agent shall not have by reason of this
Agreement or any of the Financing Documents a fiduciary relationship in respect
of any Lender; and nothing in this Agreement or any of the Security Documents,
expressed or implied, is intended to or shall be so construed as to impose upon
the Agent any obligations in respect of this Agreement or any of the Financing
Documents or the other instruments and agreements referred to herein except as
expressly set forth herein or therein.

               SECTION 8.2.2. NO RESPONSIBILITY FOR CERTAIN MATTERS. The
Agent shall not be responsible to any Lender for the execution, effectiveness,
genuineness, validity, enforceability, collectibility or sufficiency of any of
the Financing Documents or any other document, instrument or agreement now or
hereafter executed in connection herewith or therewith, or for any
representations, warranties, recitals or statements made herein or therein or
made in any written or oral statement or in any financial or other statements,
instruments, reports, certificates or any other documents in connection herewith
or therewith by or on behalf of Borrower, any of

<PAGE>
                                      -67-

the Affiliates, and/or any Subsidiary to the Agent or any Lender, or be required
to ascertain or inquire as to the performance or observance of any of the terms,
conditions, provisions, covenants or agreements contained herein or therein or
as to the use of the proceeds of the Loans or of the existence or possible
existence of any Default or Event of Default.

               SECTION 8.2.3. EXCULPATORY PROVISIONS. Neither the Agent nor
any of its officers, directors, employees or agents shall be liable to any
Lender for any action taken or omitted hereunder or under any of the Financing
Documents, or in connection herewith or therewith unless caused by its or their
gross negligence or willful misconduct. If the Agent shall request instructions
from Lenders with respect to any action (including the failure to take an
action) in connection with any of the Financing Documents, the Agent shall be
entitled to refrain from taking such action unless and until the Agent, shall
have received instructions from the Majority Lenders (or all of the Lenders if
the action requires their consent). Without prejudice to the generality of the
foregoing, (i) the Agent shall be entitled to rely, and shall be fully protected
in relying, upon any communication, instrument or document believed by it to be
genuine and correct and to have been signed or sent by the proper person or
persons, and shall be entitled to rely and shall be protected in relying on
opinions and judgments of attorneys (who may be attorneys for Borrower, any of
the Affiliates, and/or any Subsidiary), accountants, experts and other
professional advisors selected by it; and (ii) no Lender shall have any right of
action whatsoever against the Agent as a result of the Agent acting or (where so
instructed) refraining from acting under any of the Financing Documents or the
other instruments and agreements referred to herein in accordance with the
instructions of the Majority Lenders (or all of the Lenders if the action
requires their consent). The Agent shall be entitled to refrain from exercising
any power, discretion or authority vested in it under any of the Financing
Documents or the other instruments and agreements referred to herein unless and
until it has obtained the instructions of the Majority Lenders (or all of the
Lenders if the action requires their consent).

               SECTION 8.2.4. AGENT ENTITLED TO ACT AS LENDER. The agency
hereby created shall in no way impair or affect any of the rights and powers of,
or impose any duties or obligations upon, Fleet in its individual capacity as a
Lender hereunder. With respect to its participation in the Loans and the
Commitment, Fleet shall have the same rights and powers hereunder as any other
Lender and may exercise the same as though it were not performing the duties and
functions delegated to it hereunder, and the term "Lender" or "Lenders" or any
similar term shall, unless the context clearly otherwise indicates, include
Fleet in its individual capacity. The Agent and its affiliates may accept
deposits from, lend money to and generally engage in any kind of banking, trust,
financial advisory or other business with Borrower, any of the Stockholder, or
any Affiliate or Subsidiary as if it were not performing the duties specified
herein, and may accept fees and other consideration from Borrower and/or any of
such other Persons for services in connection with this Agreement and otherwise
without having to account for the same to Lenders.

     SECTION 8.3. REPRESENTATIONS AND WARRANTIES; NO RESPONSIBILITY FOR
APPRAISAL OF CREDITWORTHINESS. Each Lender represents and warrants that it has
made its own independent investigation of the financial condition and affairs of
Borrower, the Stockholder and any Subsidiaries of any of them in connection with
the making of the Loans hereunder and has made

<PAGE>
                                      -68-

and shall continue to make its own appraisal of the creditworthiness of
Borrower, the Stockholder and the Subsidiaries. The Agent shall not have any
duty or responsibility, either initially or on a continuing basis, to make any
such investigation or any such appraisal on behalf of Lenders or to provide any
Lender with any credit or other information with respect thereto whether coming
into its possession before the making of any Loan or any time or times
thereafter (except for information received by the Agent under SECTION 5.3
hereof which the Agent will promptly forward to the Lenders), and the Agent
shall further not have any responsibility with respect to the accuracy of or the
completeness of the information provided to any of the Lenders.

     SECTION 8.4. RIGHT TO INDEMNITY. Each Lender severally agrees to indemnify
the Agent proportionately to its Pro Rata Share of the Loans, to the extent the
Agent shall not have been reimbursed by or on behalf of Borrower, for and
against any and all liabilities, obligations, losses, damages, penalties,
actions, judgments, suits, costs, expenses (including, without limitation,
counsel fees and disbursements) or disbursements of any kind or nature
whatsoever which may be imposed on, incurred by or asserted against the Agent in
performing its duties hereunder or in any way relating to or arising out of this
Agreement and/or any of the other Financing Documents; PROVIDED that no Lender
shall be liable for any portion of such liabilities, obligations, losses,
damages, penalties, actions, judgments, suits, costs, expenses or disbursements
resulting from the Agent's gross negligence or willful misconduct. If any
indemnity furnished to the Agent for any purpose shall, in the opinion of the
Agent, be insufficient or become impaired, the Agent may call for additional
indemnity and cease, or not commence, to do the acts indemnified against until
such additional indemnity is furnished.

     SECTION 8.5. PAYEE OF NOTE TREATED AS OWNER. The Agent may deem and treat
the payee of any Note as the owner thereof for all purposes hereof unless and
until a written notice of the assignment or transfer thereof shall have been
filed with the Agent. Any request, authority or consent of any person or entity
who, at the time of making such request or giving such authority or consent, is
the holder of any Note shall be conclusive and binding on any subsequent holder,
transferee or assignee of that Note or of any Note or Notes issued in exchange
for such Note.

     SECTION 8.6. RESIGNATION BY AGENT.

               SECTION 8.6.1. The Agent may resign from the performance of
all its functions and duties under the Financing Documents at any time by giving
30 days' prior written notice to Borrower and each of the Lenders. Such
resignation shall take effect upon the acceptance by a successor Agent, of
appointment pursuant to SECTIONS 8.6.2 and 8.6.3 below or as otherwise provided
below.

               SECTION 8.6.2. Upon any such notice of resignation, the
Majority Lenders shall appoint a successor Agent, who shall be a Lender and, so
long as no Default or Event of Default exists and is continuing, who shall be
reasonably satisfactory to Borrower and in any event shall be an incorporated
bank or trust company with a combined surplus and undivided capital of at least
Five Hundred Million Dollars ($500,000,000).

<PAGE>
                                      -69-

               SECTION 8.6.3. If a successor Agent shall not have been so
appointed within said 30 day period, the resigning Agent, with the consent of
Borrower, which shall not be unreasonably withheld or delayed, shall then
appoint a successor Agent, who shall be a Lender and who shall serve as the
Agent, until such time, if any, as the Majority Lenders, and so long as no
Default or Event of Default exists and is continuing, with the consent of
Borrower, which shall not be unreasonably withheld or delayed, appoint a
successor Agent as provided above.

               SECTION 8.6.4. If no successor Agent has been appointed
pursuant to SECTIONS 8.6.2 or 8.6.3 by the 40th day after the date such notice
of resignation was given by the resigning Agent, the Majority Lenders shall
promptly thereafter appoint a successor Agent (without regard to the
requirements of SECTIONS 8.6.2 or 8.6.3). The resigning Agent's resignation
shall become effective upon such successor Agent's acceptance of its
appointment, and such successor Agent shall thereafter perform all the duties of
the Agent under the Financing Documents.

     SECTION 8.7. SUCCESSOR AGENT. Upon the acceptance of any appointment as the
Agent hereunder by a successor Agent, that successor Agent shall thereupon
succeed to and become vested with all the rights, powers, privileges and duties
of the retiring Agent and the retiring Agent, shall be discharged from its
duties and obligations as the Agent under the Financing Documents. After any
retiring Agent's resignation hereunder as the Agent the provisions of this
Article VIII shall inure to its benefit as to any actions taken or omitted to be
taken by it while it was the Agent under the Financing Documents.

                                   ARTICLE IX

                                  MISCELLANEOUS

     SECTION 9.1. CONSENT TO JURISDICTION AND SERVICE OF PROCESS.

               SECTION 9.1.1. Except to the extent prohibited by applicable
law, Borrower irrevocably:

                    SECTION 9.1.1.1. agrees that any suit, action, or other
legal proceeding arising out of any of the Financing Documents or any of the
Loans may be brought in the courts of record of The Commonwealth of
Massachusetts or any other state(s) in which a portion of Borrower's or any
Subsidiary's assets sufficient for personal jurisdiction are located or the
courts of the United States located in The Commonwealth of Massachusetts or any
other state(s) in which a portion of Borrower's or any Subsidiary's assets
sufficient for personal jurisdiction are located;

                    SECTION 9.1.1.2. consents to the jurisdiction of each such
court in any such suit, action or proceeding; and

<PAGE>
                                      -70-

                    SECTION 9.1.1.3. waives any objection which it may have to
the laying of venue of such suit, action or proceeding in any of such courts.

     For such time as any of the Indebtedness of Borrower to any Lender and/or
the Agent shall be unpaid in whole or in part and/or the Commitment is in
effect, Borrower irrevocably designates the registered agent or agent for
service of process of Borrower as reflected in the records of the Secretary of
State of The Commonwealth of Massachusetts as its registered agent, and, in the
absence thereof, the Secretary of State of The Commonwealth of Massachusetts as
its agent to accept and acknowledge on its behalf service of any and all process
in any such suit, action or proceeding brought in any such court and agrees and
consents that any such service of process upon such agent and written notice of
such service to Borrower by registered or certified mail shall be taken and held
to be valid personal service upon Borrower regardless of where Borrower shall
then be doing business and that any such service of process shall be of the same
force and validity as if service were made upon it according to the laws
governing the validity and requirements of such service in each such state and
waives any claim of lack of personal service or other error by reason of any
such service. Any notice, process, pleadings or other papers served upon the
aforesaid designated agent shall, within three (3) Business Days after such
service, be sent by the method provided therefor under SECTION 9.6 to Borrower
at its address set forth in this Agreement. EACH OF THE PARTIES HERETO HEREBY
WAIVES ANY RIGHT TO TRIAL BY JURY IN THE EVENT OF ANY DISPUTE BETWEEN THE
BORROWER AND THE AGENT AND/OR THE LENDERS WITH RESPECT TO THE FINANCING
DOCUMENTS AND/OR ANY OF THE TRANSACTIONS CONTEMPLATED THEREBY.

     SECTION 9.2. RIGHTS AND REMEDIES CUMULATIVE. No right or remedy conferred
upon or reserved to the Agent and/or the Lenders in any of the Financing
Documents is intended to be exclusive of any other right or remedy, and every
right and remedy shall, to the extent permitted by law, be cumulative and in
addition to every other right and remedy given under any of the Financing
Documents or now or hereafter existing at law or in equity or otherwise. The
assertion or employment of any right or remedy under any of the Financing
Documents, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

     SECTION 9.3. DELAY OR OMISSION NOT WAIVER. No delay in exercising or
failure to exercise by the Agent and/or the Lenders of any right or remedy
accruing upon any Default or Event of Default shall impair any such right or
remedy or constitute a waiver of any such Default or Event of Default or an
acquiescence therein. Every right and remedy given by any of the Financing
Documents or by law to the Agent and/or any of the Lenders may be exercised from
time to time, and as often as may be deemed expedient, by the Agent and/or any
of the Lenders.

     SECTION 9.4. WAIVER OF STAY OR EXTENSION LAWS. The Borrower covenants (to
the extent that it may lawfully do so) that it will not at any time insist upon,
or plead or in any manner whatsoever claim or take the benefit or advantage of,
any stay or extension law wherever enacted, now or at any time hereafter in
force, which may affect the covenants or the performance of any of the Financing
Documents; and Borrower (to the extent that it may lawfully do so) hereby
expressly waives all benefit and advantage of any such law and covenants that it

<PAGE>
                                      -71-

will not hinder; delay or impede the execution of any power herein granted to
the Agent and/or any of the Lenders, but will suffer and permit the execution of
every such power as though no such law had been enacted, except to the extent
the Agent or any Lender is guilty of willful misconduct or gross negligence.

     SECTION 9.5. AMENDMENTS, ETC. No amendment, modification, termination, or
waiver of any provision of any of the Financing Documents nor consent to any
departure by Borrower therefrom shall in any event be effective unless the same
shall be in a written notice given to Borrower by the Agent and consented to in
writing by the Majority Lenders (or by the Agent acting alone if any specific
provision of this Agreement provides that the Agent, acting alone, may grant
such amendment, modification, termination, waiver or departure) and the Agent
shall give any such notice if the Majority Lenders so consent or direct the
Agent to do so; provided, however, that any such amendment, modification,
termination, waiver or consent shall require a written notice given to Borrower
by the Agent and consented to in writing by all of the Lenders if the effect
thereof is to (i) change any of the provisions affecting the interest rate on
the Loans, (ii) extend or modify the Commitment, (iii) discharge or release
Borrower from its obligation to repay all principal due under the Loans or
release any collateral or guaranty for the Loans, (iv) change any Lender's Pro
Rata Share of the Commitment or the Loans, (v) modify this SECTION 9.5, (vi)
change the definition of Majority Lenders, (vii) extend any scheduled due date
for payment of principal, interest or fees or (viii) permit Borrower to assign
any of its rights under or interest in this Agreement, and then such waiver or
consent shall be effective only in the specific instance and for the specific
purpose for which given. Any amendment or modification of this Agreement must be
signed by Borrower, the Agent and at least all of the Lenders consenting thereto
who shall then hold the Pro Rata Shares of the Loans required for such amendment
or modification under this SECTION 9.5 and the Agent shall sign any such
amendment if such Lenders so consent or direct the Agent to do so provided that
any Lender dissenting therefrom shall be given an opportunity to sign any such
amendment or modification. Any amendment of any of the Security Documents must
be signed by each of the parties thereto. No notice to or demand on Borrower and
no consent, waiver or departure from the terms of this Agreement granted by the
Agent and/or the Lenders in any case shall entitle Borrower to any other or
further notice or demand in similar or other circumstances.

     SECTION 9.6. ADDRESSES FOR NOTICES, ETC. All notices, requests, demands and
other communications provided for hereunder (other than those which, under the
terms of this Agreement, may be given by telephone, which shall be effective
when received verbally) shall be in writing (including telecopied communication)
and mailed (provided that in the case of items referred to in the next-to-last
sentence of SECTION 9.1 and the items set forth below as requiring a copy to
legal counsel for Borrower, the Agent or a Lender, such items shall be mailed by

<PAGE>
                                      -72-

overnight courier for delivery the next Business Day), telecopied or delivered
to the applicable party at the addresses indicated below:

         If to Borrower:

                  Innoveda, Inc.
                  293 Boston Post Road West
                  Marlboro, MA 01752-4615
                  Attention:   William Herman, President
                  Telephone:   (508) 480-0881
                  Telecopy:    (508) 480-0888

     With a copy to (if given pursuant to any of SECTIONS 5.3.1, 5.3.5, 5.3.9,
5.3.10 and 5.3.11):

                  Hale and Dorr LLP
                  60 State Street
                  Boston, MA 02109  Attention:  Mark N. Polebaum, Esquire
                  Telephone    (617) 526-6792
                  Telecopy:    (617) 526-5000

If to Agent:

                  Fleet National Bank
                  One Federal Street
                  Boston, Massachusetts 02110
                  Attention:   Lucie Burke, Vice President
                               Technology and Communications, MA DE 10009G
                  Telephone:   (617) 434-5190
                  Telecopy:    (617) 434-0819

     With a copy to (if given pursuant to any of SECTIONS 5.3.1, 5.3.5, 5.3.9,
5.3.10 and 5.3.11)

                  Hinckley, Allen & Snyder LLP
                  28 State Street
                  Boston, Massachusetts 02109
                  Attention:   Paula K. Andrews, Esquire
                  Telephone:   (617) 345-9000
                  Telecopy:    (617) 345-9020

     If to any other Lender, to the address set forth on EXHIBIT 1.9.

or, as to each party, at such other address as shall be designated by such party
in a written notice to each other party complying as to the delivery with the
terms of this Section. All such notices, requests, demands and other
communications shall be effective when received. Requests,

<PAGE>
                                      -73-

certificates, other items provided pursuant to SECTION 5.3 and other routine
mailings or notices need not be accompanied by a copy to legal counsel for the
Lenders or Borrower.

     SECTION 9.7. COSTS, EXPENSES AND TAXES. The Borrower agrees to pay on
demand the reasonable fees and out-of-pocket expenses of . Hinckley, Allen &
Snyder LLP, counsel for the Agent and of any local counsel retained by the Agent
in connection with the preparation, execution, delivery, syndication and
administration of the Financing Documents and the Loans. The Borrower agrees to
pay on demand all reasonable costs and expenses (including without limitation
reasonable attorneys' fees) incurred by the Agent and/or any Lender, upon or
after the occurrence and during the continuance of any Default or Event of
Default, if any, in connection with the enforcement of any of the Financing
Documents and any amendments, waivers, or consents with respect thereto. In
addition, Borrower shall pay on demand any and all stamp and other taxes and
fees payable or determined to be payable in connection with the execution and
delivery of the Financing Documents, and agrees to save the Lenders and the
Agent harmless from and against any and all liabilities with respect to or
resulting from any delay in paying or omission to pay such taxes or fees, except
those resulting from the Lenders' or Agent's gross negligence or willful
misconduct.

     SECTION 9.8. PARTICIPATIONS. Subject to compliance with the proviso in the
first sentence of SECTION 9.11, any Lender may sell participations in all or
part of the Loans made by it and/or its Pro Rata Share of the Commitment or any
other interest herein to a financial institution having at least $500,000,000 of
assets, in which event the participant shall not have any rights under any of
the Financing Documents (the participant's rights against such Lender in respect
of that participation to be those set forth in the Agreement executed by such
Lender in favor of the participant relating thereto) and all amounts payable by
Borrower hereunder or thereunder shall be determined as if such Lender had not
sold such participation. Such Lender may furnish any information concerning
Borrower and any Subsidiary in the possession of such Lender from time to time
to participants (including prospective participants); provided that such Lender
and any participant comply with the proviso in SECTIONS 9.11.7 and 9.11.8 as if
any such participant was a New Lender.

     SECTION 9.9. BINDING EFFECT; ASSIGNMENT. This Agreement shall be binding
upon and inure to the benefit of Borrower, the Agent and the Lenders and their
respective successors and assigns, except that Borrower shall not have the right
to assign its rights hereunder or any interest herein without the prior written
consent of the Agent and the Lenders. This Agreement and all covenants,
representations and warranties made herein and/or in any of the other Financing
Documents shall survive the making of the Loans, the execution and delivery of
the Financing Documents and shall continue in effect so long as any amounts
payable under or in connection with any of the Financing Documents or any other
Indebtedness of Borrower to the Agent and/or any Lender remains unpaid or the
Commitment remains outstanding; provided, however, that SECTIONS 2.2.3 and 9.7
shall, except to the extent agreed to in a pay-off letter by the Agent and the
Lenders in their complete discretion, survive and remain in full force and
effect for 90 days following repayment in full of all amounts payable under or
in connection with all of the Financing Documents and any other such
Indebtedness.

<PAGE>
                                      -74-

     SECTION 9.10. ACTUAL KNOWLEDGE. For purposes of this Agreement, neither the
Agent nor any Lender shall be deemed to have actual knowledge of any fact or
state of facts unless the senior loan officer or any other officer responsible
for Borrower's account established pursuant to this Agreement at the Agent or
such Lender, shall, in fact, have actual knowledge of such fact or state of
facts or unless written notice of such fact shall have been received by the
Agent or such Lender in accordance with SECTION 9.6.

     SECTION 9.11. ASSIGNMENTS. Any Lender may at any time pledge or assign all
or any portion of its Pro Rata Share of the Commitment and the Loans to a
Federal Reserve Bank, provided that no such pledge or assignment shall release a
Lender from its obligations hereunder. Subject to the terms and conditions
hereinafter set forth, any Lender may assign (such Lender, an "ASSIGNING
LENDER") all or any portion of its Pro Rata Share of the Commitment to any
financial institution having at least $500,000,000 in assets New Lender(the "NEW
LENDER") , provided that, after giving effect thereto, neither the Assigning
Lender nor the New Lender shall have a Pro Rata Share of the Commitment and the
Loans in the aggregate of less than $5,000,000, and Fleet and/or its affiliates
shall retain for their own account at least 50% of the Term Loan and 50% of the
Revolving Credit Loan Commitment.

               SECTION 9.11.1. In connection with any such assignment the
Assigning Lender, the New Lender and the Agent shall enter into a an Assignment
and Acceptance Agreement in the form of EXHIBIT 9.11.1 hereto (an "ASSIGNMENT
AND ACCEPTANCE AGREEMENT") pursuant to which such New Lender shall be
substituted for the Assigning Lender requesting the substitution in question to
the extent of the reduction in the Assigning Lender's portion of the Loans
specified therein. In addition, such New Lender shall assume such of the
obligations of each Assigning Lender under the Financing Documents as may be
specified in such Assignment Agreement and this Agreement shall be amended by
execution and delivery of each Assignment Agreement to include such New Lender
as a Lender for all purposes under the Financing Documents and to substitute for
the then existing EXHIBIT 1.9 to this Agreement a new EXHIBIT 1.9 in the form of
SCHEDULE A to such Assignment Agreement setting forth the portion of the Loans
belonging to each Lender following execution thereof. The Agent and each New
Lender shall countersign and accept delivery of each Assignment Agreement.

               SECTION 9.11.2. Without prejudice to any other provision of this
Agreement, each New Lender shall, by its execution of an Assignment Agreement,
agree that neither the Agent nor any Lender is any way responsible for or makes
any representation or warranty as to: (a) the accuracy and/or completeness of
any information supplied to such New Lender in connection therewith, (b) the
financial condition, creditworthiness, affairs, status or nature of Borrower,
any of the Affiliates and/or any of the Subsidiaries or the observance by
Borrower, or any other party of any of its obligations under this Agreement or
any of the other Financing Documents or (c) the legality, validity,
effectiveness, adequacy or enforceability of any of the Financing Documents.

               SECTION 9.11.3. The Agent shall be entitled to rely on any
Assignment Agreement delivered to it pursuant to this SECTION 9.11 which is
complete and regular on its face as to its contents and appears to be signed on
behalf of the New Lender which is a party thereto, and the Agent shall have no
liability or responsibility to any party as a consequence of relying thereon

<PAGE>
                                      -75-

and acting in accordance with and countersigning any such Assignment Agreement.
The effective date of each Assignment Agreement shall be the date specified as
such therein and each Lender prior to such effective date shall, for all
purposes hereunder, be deemed to have and possess all of their respective rights
and obligations hereunder up to 12:00 o'clock Noon on the effective date
thereof.

               SECTION 9.11.4. Upon delivery to the Agent of any Assignment
Agreement pursuant to and in accordance with this SECTION 9.11 and acceptance
thereof by the Agent (which delivery shall be evidenced and accepted exclusively
and conclusively by the Agent's countersignature thereon pursuant to the terms
hereof without which such Assignment Agreement shall be ineffective): (i) except
as provided hereunder and in SECTION 9.11.5, the respective rights of each
Assigning Lender and Borrower against each other under the Financing Documents
with respect to the portion of the Commitment and the Loans being assigned or
delegated shall be terminated and each Assigning Lender and Borrower shall each
be released from all further obligations to the other hereunder with respect
thereto (all such rights and obligations to be so terminated or released being
referred to in this SECTION 9.11 as "Discharged Rights and Obligations"); and
(ii) Borrower and the New Lender shall each acquire rights against each other
and assume obligations towards each other which differ from the Discharged
Rights and Obligations only in so far as Borrower and the New Lender have
assumed and/or acquired the same in place of the Assigning Lender in question;
and (iii) the Agent, the New Lender and the other Lenders shall acquire the same
rights and assume the same obligations between themselves as they would have
acquired and assumed had such New Lender been an original party to this
Agreement as a Lender possessing the Discharged Rights and Obligations acquired
and/or assumed by it in consequence of the delivery of such Assignment Agreement
to the Agent.

               SECTION 9.11.5. Discharged Rights and Obligations shall not
include, and there shall be no termination or release pursuant to this SECTION
9.11 of (i) any rights or obligations arising pursuant to any of the Financing
Documents in respect of the period or in respect of payments hereunder made
during the period prior to the effective date of the relevant Assignment
Agreement or, (ii) any rights or obligations relating to the payment of any
amount which has fallen due and not been paid hereunder prior to such effective
date or rights or obligations for the payment of interest, damages or other
amounts becoming due hereunder as a result of such nonpayment.

               SECTION 9.11.6. With respect to any substitution of a New
Lender taking place after the Closing Date, Borrower shall issue to such New
Lender and to such Assigning Lender, new Notes reflecting the inclusion of such
New Lender as a Lender and the reduction in the respective Loans of such
Assigning Lender, such new Notes to be issued against receipt by Borrower of the
existing Notes of such Lender. The Assigning Lender or the New Lender shall pay
to the Agent for its own account an assignment fee in the amount of $3,500 for
each assignment hereunder, which shall be payable at or before the effective
date of the assignment.

               SECTION 9.11.7. Each Lender may furnish to any financial
institution having at least $500,000,000 in assets which such Lender proposes to
make a New Lender or to a New Lender any information concerning such Lender,
Borrower, Stockholders and any Subsidiary in

<PAGE>
                                      -76-

the possession of that Lender from time to time; provided that any Lender
providing any confidential information about Borrower, any of the Stockholders
and/or any Subsidiary to any such financial institution shall first obtain such
financial institution's agreement to keep confidential any such confidential
information.

               SECTION 9.11.8. (a) Each of the Lenders agrees, subject to
SECTION 9.11.7., that it will use its best efforts not to disclose without the
prior consent of Borrower any information with respect to Borrower or any of its
Subsidiaries which is furnished pursuant to this Agreement; PROVIDED, that any
Lender may disclose any such information (a) as has become generally available
to the public or has become properly available to such Lender on a
non-confidential basis, (b) as may be required or appropriate in any report,
statement or testimony submitted to any municipal, state or Federal regulatory
body having or claiming to have jurisdiction over such Lender or to the Federal
Reserve Board, the Federal Deposit Insurance Corporation, the NAIC or similar
organizations (whether in the United States or elsewhere) or their successors,
(c) as may be required or appropriate in response to any summons or subpoena or
in connection with any litigation, (d) in order to comply with any law, order,
regulation or ruling applicable to such Lender, and (e) to any prospective
transferee in connection with any contemplated transfer of any of the Loans or
any interest therein by such Lender; PROVIDED, that such prospective transferee
agrees to be bound by the provisions in this SECTION 9.11.8 to the same extent
as such Lender.

               (b) The Borrower hereby acknowledges and agrees that each Lender
may share with its auditors, counsel, other professional advisors and any of its
Affiliates any information related to Borrower or any of its Subsidiaries
(including, without limitation, any nonpublic customer information regarding the
creditworthiness of Borrower and its Subsidiaries), provided that Lender shall
have made such Persons aware of Section 9.10.8 and such Persons shall have
agreed to be subject to the provisions of this SECTION 9.11.8 to the same extent
as such Lender.

     SECTION 9.12. PAYMENTS PRO RATA. The Agent agrees that promptly after its
receipt of each payment from or on behalf of Borrower in respect of any
obligations of Borrower hereunder it shall distribute such payment to the
Lenders pro rata based upon their respective Pro Rata Shares, if any, of the
obligations with respect to which such payment was received. Each of the Lenders
agrees that, if it should receive any amount hereunder (whether by voluntary
payment, by realization upon security, by the exercise of the right of setoff
under SECTION 2.5.2 or otherwise or banker's lien, by counterclaim or cross
action, by the enforcement of any right under the Financing Documents, or
otherwise), which is applicable to the payment of the Obligations of a sum which
with respect to the related sum or sums received by other Lenders is in a
greater proportion than the total amount of such Obligation then owed and due to
such Lender bears to the total amount of such Obligation then owed and due to
all of the Lenders immediately prior to such receipt, except for any amounts
received pursuant to SECTION 2.2.3, then such Lender receiving such excess
payment shall purchase for cash without recourse or warranty from the other
Lenders an interest in the Obligations of Borrower to such Lenders in such
amount as shall result in a proportional participation by all the Lenders in
such amount; provided further, however, that if all or any portion of such
excess amount is thereafter recovered from such

<PAGE>
                                      -77-

Lender, such purchase shall be rescinded and the purchase price restored to the
extent of such recovery, but without interest.

     SECTION 9.13. INDEMNIFICATION. The Borrower irrevocably agrees to and does
hereby indemnify and hold harmless Agent and each of the Lenders, their agents
or employees and each Person, if any, who controls any of the Agent and the
Lenders within the meaning of Section 15 of the Securities Act of 1933, as
amended, and each and all and any of them (the "Indemnified Parties"), against
any and all losses, claims, actions, causes of action, damages or liabilities
(including any amount paid in settlement of any action, commenced or threatened
and any amount described in SECTION 8.4) (collectively, the "Damages"), joint or
several, to which they, or any of them, may become subject under statutory law
or at common law, and to reimburse the Indemnified Parties for any legal or
other out-of-pocket expenses reasonably incurred by it or them in connection
with investigating, preparing for or defending against any of the Indemnified
Parties, insofar as such losses, claims, damages, liabilities or actions arise
out of or are related to any act or omission of Borrower and/or any Subsidiary
with respect to any of (i) the Related Transactions, (ii) any of the Financing
Documents, (iii) any of Loans, (iv) any use made or proposed to be made with the
proceeds of the Loans, (v) any acquisition or proposed acquisition or any other
similar business combination or proposed business combination by Borrower and/or
any of its Subsidiaries and/or its Affiliates (other than the Sprout Group not
related to the Related Transactions) (whether by acquisition or exchange of
capital stock or other securities or by acquisition of all or substantially all
of the assets of any Person), (vi) any offering of securities by Borrower and/or
any Subsidiary after the date hereof and/or in connection with the Securities
and Exchange Act of 1933 and/or (vii) any failure to comply with any applicable
federal, state or foreign governmental law, rule, regulation, order or decree,
including without limitation, any Damages which arise out of or are based upon
any untrue statement or alleged untrue statement of a material fact with respect
to matters relative to any of the foregoing contained in any document
distributed in connection therewith, or the omission or alleged omission to
state in any of the foregoing a material fact necessary to make the statements
therein, in the light of the circumstances under which they were made, not
misleading, but excluding any Damages to the extent arising from or due to, as
determined in a final nonappealable judgment by a court of competent
jurisdiction, the gross negligence or willful misconduct of any of the
Indemnified Parties; provided, however, that notwithstanding the foregoing, no
Indemnified Party shall have any liability (whether direct or indirect, in
contract or tort of otherwise) to Borrower, any Affiliates or any Subsidiaries
or to their respective security holders or creditors except for direct (as
opposed to consequential damages) determined in a final nonappealable judgment
by a court of competent jurisdiction to have resulted from such Indemnified
Party's gross negligence or willful misconduct. In the case of an investigation,
litigation or proceeding to which the indemnity described in this paragraph
applies, such indemnity shall be effective whether or not such investigation,
litigation or proceeding is brought by Borrower, any Affiliates or any
Subsidiary or to their respective security holders or creditors or an
Indemnified Party or an Indemnified Party is otherwise a party thereto and
whether or not the Related Transaction and the transactions contemplated by the
Financing Documents are consummated.

     Promptly upon receipt of notice of the commencement of any action, or
information as to any threatened action against any of the Indemnified Parties
in respect of which indemnity or

<PAGE>
                                      -78-

reimbursement may be sought from Borrower on account of the agreement contained
in this SECTION 9.13, notice shall be given to Borrower in writing of the
commencement or threatening thereof, together with a copy of all papers served,
but the omission so to notify Borrower of any such action shall not release
Borrower from any liability which it may have to such Indemnified Parties
unless, and only to the extent that, such omission materially prejudiced
Borrower's ability to defend against such action.

     In case any such action shall be brought against any of the Indemnified
Parties, Borrower shall be entitled to participate in (and, to the extent that
it shall wish, to select counsel and to direct) the defense thereof at its own
expense. Any of the Indemnified Parties shall have the right to employ its or
their own counsel in any case, but the fees and expenses of such counsel shall
be at the expense of such Indemnified Party unless the employment of such
counsel shall have been authorized in writing by Borrower in connection with the
defense of such action or Borrower shall not have employed counsel to have
charge of the defense of such action or such Indemnified Party shall have
received an opinion from an independent counsel that there may be defenses
available to it which are different from or additional to those available to
Borrower (in which case Borrower shall not have the right to direct the defense
of such action on behalf of such Indemnified Party), in any of which events the
same shall be borne by Borrower. If any Indemnified Party settles any claim or
action with respect to which Borrower has agreed to indemnify such Indemnified
Party pursuant to the terms hereof, Borrower shall have no liability pursuant to
this SECTION 9.13 to such Indemnified Party with respect to such claim or action
unless Borrower shall have consented in writing to the terms of such settlement.

     The provisions of SECTION 9.13 shall be effective only to the fullest
extent permitted by law. The provisions of this Section 9.13 shall continue in
effect and shall survive (among other events), until the applicable statute of
limitations has expired, any termination of this Agreement, foreclosure, a deed
in lieu transaction, payment and satisfaction of the Obligations of Borrower,
and release of any collateral for the Loans.

     SECTION 9.14. GOVERNING LAW. This Agreement and each Note shall be governed
by, and construed in accordance with, the laws of The Commonwealth of
Massachusetts without regard to such state's conflict of laws rules.

     SECTION 9.15. SEVERABILITY OF PROVISIONS. Any provision of this Agreement
which is prohibited or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such prohibition or
unenforceability without invalidating the remaining provisions hereof or
affecting the validity or enforceability of such provision in any other
jurisdiction.

     SECTION 9.16. HEADINGS. Article and Section headings in this Agreement are
included herein for convenience of reference only and shall not constitute a
part of this Agreement for any other purpose.

     SECTION 9.17. JOINT AND SEVERAL LIABILITY OF BORROWERS. This Section shall
be controlling with respect to all of the provisions of this Agreement and the
other Financing Documents, including those provisions which do not specifically
reference this Section 9.17.

<PAGE>
                                      -79-

In the event of a conflict between this Section 9.17 and any other provision of
this Agreement or any other provision of the Financing Documents, this Section
9.17 shall be controlling.

     (a) JOINT AND SEVERAL LIABILITY. Each of Borrowers is accepting joint and
     several liability with each of the other Borrowers hereunder and under the
     other Financing Documents in consideration of the financial accommodations
     to be provided to Borrowers by the Lenders under this Agreement, for the
     mutual benefit, directly and indirectly, of each of Borrowers and in
     consideration of the undertakings of each other Borrower to accept joint
     and several liability for the Obligations. Each of Borrowers, jointly and
     severally with each of the other Borrowers, hereby irrevocably and
     unconditionally accepts, not merely as a surety but also as a co-debtor,
     joint and several liability with each of the other Borrowers, with respect
     to the payment and performance of all of the other Obligations (including,
     without limitation, any Obligation arising under this Section 9.17), it
     being the intention of the parties hereto that all the Obligations shall be
     the joint and several obligations of each of Borrowers without preferences
     or distinction among them.

     (b) FAILURE TO MAKE PAYMENT. If and to the extent that any of Borrowers
     shall fail to make any payment with respect to any of the Obligations as
     and when due or to perform any of the Obligations in accordance with the
     terms thereof, then in each such event the other Borrowers will make such
     payment with respect to, or perform, such Obligations.

     (c) FULL RECOURSE. The Obligations specific to each of Borrowers under the
     provisions of this Section 9.17 constitute the full recourse Obligations of
     each of Borrowers enforceable against each such Borrower to the full extent
     of its properties and assets, irrespective of the validity, regularity or
     enforceability of this Agreement or any other circumstance whatsoever.

     (d) WAIVERS; CONSENTS; ETC. Except as otherwise expressly provided in this
     Loan Agreement, each of Borrowers hereby waives notice of acceptance of its
     applicable joint and several liability, notice of any Loans made or Letters
     of Credit issued under this Agreement, notice of the occurrence of any
     default, or of any demand for any payment under this Agreement or other
     Financing Documents, notice of any action at any time taken or omitted by
     the Agent or any Lender under or in respect of any of the Obligations, any
     requirement of diligence or to mitigate damages, and, generally, to the
     extent permitted by applicable law, all demands, notices and other
     formalities of every kind in connection with this Agreement. Each Borrower
     hereby assents to, and waives notice of, any extension or postponement of
     the time for the payment of any of the Obligations, the acceptance of any
     payment of any of the Obligations, the acceptance of any partial payment
     thereon, any waiver, consent or other action or acquiescence by the Agent
     or any Lender at any time or times in respect of any default by any of
     Borrowers in the performance or satisfaction of any term, covenant,
     condition or provision of this Agreement, any and all other indulgences
     whatsoever by the Agent or any Lender in respect of any of the Obligations,
     and the taking, addition, substitution or release, in whole or in part, at
     any time or times, of any security for any of the Obligations, or the
     addition, substitution or release, in whole or in part, of any of
     Borrowers. Without

<PAGE>
                                      -80-

     limiting the generality of the foregoing, each of Borrowers assents to any
     other action or delay in acting or failure to act on the part of the Agent
     or any Lender with respect to the failure by any of Borrowers to comply
     with any of its respective Obligations, including, without limitation, any
     failure strictly or diligently to assert any right or to pursue any remedy
     or to comply fully with applicable laws or regulations thereunder, which
     might, but for the provisions of this SECTION 9.17, afford grounds for
     terminating, discharging or relieving any of Borrowers, in whole or in
     part, from any of its Obligations under this SECTION 9.17, it being the
     intention of each of Borrowers that, so long as any of the Obligations
     hereunder remain unsatisfied, the Obligations of such Borrowers under this
     SECTION 9.17 shall not be discharged except by performance and then only to
     the extent of such performance. The Obligations of each of Borrowers under
     this Section 9.17 shall not be diminished or rendered unenforceable by any
     winding up, reorganization, arrangement liquidation, reconstruction or
     similar proceeding with respect to any of Borrowers or the Lenders. The
     joint and several liability of Borrowers hereunder shall continue in full
     force and effect notwithstanding any absorption, merger, amalgamation or
     any other change whatsoever in the name, membership, constitution or place
     of formation of any of Borrowers or the Agent or any Lender.

     (e) OBLIGATIONS ABSOLUTE; NO MARSHALLING. The provisions of this Section
     9.17 are made for the benefit of the Agent and the Lenders and their
     respective successors and assigns, and may be enforced by it or them from
     time to time against any and all of Borrowers as often as occasion therefor
     may arise and without requirements on the part of the Agent or the Lenders
     first to marshall any of its or their claims or to exercise any of its or
     their rights against any of the other Borrowers or to exhaust any remedies
     available to it or them against any of the other Borrowers or to resort to
     any other source or means of obtaining payment of any of the Obligations
     hereunder or to elect any other remedy. The provisions of this Section 9.17
     shall remain in effect until all of the Obligations shall have been paid in
     full or otherwise fully satisfied. If at any time, any payment, or any part
     thereof, made in respect of any of the Obligations, is rescinded or must
     otherwise be restored or returned by the Lenders upon the insolvency,
     Bankruptcy or reorganization of any of Borrowers, or otherwise, the
     provisions of this Section 9.17 will forthwith be reinstated in effect, as
     though such payment had not been made.

     (f) SUBORDINATION OF SUBROGATION RIGHTS, ETC. Each of Borrowers hereby
     agrees that it will not enforce any of its rights of contribution or
     subrogation against the other Borrowers or any Affiliate of Borrowers with
     respect to any liability incurred by it hereunder or under any of the other
     Financing Documents, any payments made by it to the Agent or the Lenders
     with respect to any of the Obligations or any collateral security therefore
     until such time as all Indebtedness of Borrowers owing to the Lenders or
     the Agent under the Financing Documents (the "SENIOR INDEBTEDNESS") has
     been paid in full in immediately available funds denominated in Dollars.
     Any claim which any Borrower may have against any other Borrower with
     respect to any payment to the Lenders hereunder or under any other
     Financing Documents are hereby expressly made subordinate and junior in
     right of payment, without limitation as to any increases in the Obligations
     arising hereunder or thereunder, to the prior payment in full of the Senior

<PAGE>
                                      -81-

     Indebtedness and, in the event of any insolvency, Bankruptcy, receivership,
     liquidation, reorganization or other similar proceeding under the laws of
     any jurisdiction relating to any Borrower, its debts or its assets, whether
     voluntary or involuntary, all such Senior Indebtedness shall be paid in
     full in immediately available funds denominated in Dollars before any
     payment or distribution of any character, whether in cash, securities or
     other property, shall be made to any other Borrower therefor.

     (g) SUBORDINATION. Each of Borrowers hereby agrees that the payment of any
     amounts due with respect to the indebtedness owing by any Borrower to any
     other Borrower or any Affiliate of any Borrower is hereby subordinated to
     the prior payment in full in immediately available funds denominated in
     Dollars of the Senior Indebtedness. Each Borrower hereby agrees that after
     the occurrence and during the continuance of any Event of Default, such
     Borrower will not demand, sue for or otherwise attempt to collect any
     indebtedness of any other Borrower owing to such Borrower until the Senior
     Indebtedness shall have been paid in full in immediately available funds
     denominated in Dollars. If, notwithstanding the foregoing sentence, such
     Borrower shall collect, enforce or receive any amounts in respect of such
     indebtedness, such amounts shall be collected, enforced and received by
     such Borrower as trustee for the Agent and be paid over to the Agent for
     the PRO RATA account of the Lenders to be applied to repay the Senior
     Indebtedness.

     (h) REVOLVING CREDIT LOANS. Any of Borrowers may borrow under this
     Agreement and any Borrower may request a Revolving Credit Loan or a Letter
     of Credit hereunder.

     SECTION 9.18. COUNTERPARTS. This Agreement may be executed and delivered in
any number of counterparts each of which shall be deemed an original, and this
Agreement shall be effective when at least one counterpart hereof has been
executed by each of the parties hereto.

                            [SIGNATURE PAGE FOLLOWS]

<PAGE>

                                      -82-

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed
as a sealed instrument by their respective officers thereunto duly authorized,
as of the date first written above.

In the presence of:                    INNOVEDA, INC.

/S/ DIANA E. BREWER                    By:/S/ KEVIN P. O'BRIEN
------------------------------        -------------------------------------
                                          Kevin P. O'Brien
                                          Vice President of Finance and
                                          Chief Financial Officer

In the presence of:                   VIEWLOGIC SYSTEMS, INC.

/S/ DIANA E. BREWER                   By:/S/ KEVIN P. O'BRIEN
------------------------------        -------------------------------------
                                         Kevin P. O'Brien
                                         Vice President of Finance and
                                         Chief Financial Officer

In the presence of:                   FLEET NATIONAL BANK, as Agent for
                                      the Lenders and as a Lender

/S/ CHRISTOPHER WAGNER                By:/S/ LUCIE BURKE
------------------------------        -------------------------------------
                                         Lucie Burke
                                         Vice President<PAGE>

                                                                    Exhibit 10.1

                            SECOND AMENDMENT TO LEASE

         SECOND AMENDMENT TO LEASE dated as of this 27 day of April, 2000, by
and between Mortimer B. Zuckerman and Edward H. Linde as TRUSTEES OF ELANDZEE
TRUST under Declaration of Trust dated March 27, 1972, recorded with the
Middlesex South District Registry of Deeds in Book 12237, Page 161 as amended by
instrument dated January 23, 1991 recorded with said Registry of in Book 20987,
Page 157, but not individually ("Landlord") and CENTRA SOFTWARE, INC., a
Delaware corporation ("Tenant").

                                 R E C I T A L S

         By Lease dated July 21, 1999, (the "Lease"), Landlord did lease to
Tenant and Tenant did lease from Landlord 19,349 square feet of rentable floor
area (the "Rentable Floor Area of the Initial Premises") on the second floor of
the building (the "Building") known as and numbered 430 Bedford Street,
Lexington, Massachusetts (referred to in the Lease as the "Premises" or
"Tenant's Space") and hereinafter sometimes referred to as the "Initial
Premises".

         By First Amendment to Lease dated as of October 12, 1999 (the "First
Amendment"), Landlord and Tenant increased the size of the Initial Premises by
adding thereto 3,490 square feet of rentable floor area (referred to in the
First Amendment as the "Rentable Floor Area of the Additional Premises" and
hereinafter sometimes referred to as the "Rentable Floor Area of the First
Additional Premises") on the first floor of the Building, which space is shown
on Exhibit A attached to such First Amendment (referred to in the First
Amendment as the "Additional Premises" and hereinafter sometimes referred to as
the "First Additional Premises").

         Tenant has determined to Lease from Landlord (i) an additional 14,029
square feet of rentable floor area (the "Rentable Floor Area of the Second
Additional Premises A") consisting of 10,181 square feet on the third floor of
the Building and 3,848 on the second floor of the Building, which space is shown
on Exhibit A attached hereto as Second Additional Premises A (hereinafter
sometimes referred to as the "Second Additional Premises A"), (ii) an additional
3,628 square feet of rentable floor area (the "Rentable Floor Area of the Second
Additional Premises B") on the third floor of the Building, which space is shown
on Exhibit A attached hereto as Second Additional Premises B (hereinafter
sometimes referred to as the "Second Additional Premises B"), and (iii) an
additional 3,159 square feet of rentable floor area (the "Rentable Floor Area of
Second Additional Premises C") on the third floor of the Building, which space
is shown on Exhibit A attached hereto as Second Additional Premises C
(hereinafter sometimes referred to as the "Second Additional Premises C") upon
all of the same terms and conditions contained in the Lease as amended, except
as otherwise provided in this Second Amendment to Lease (the "Second
Amendment"). The Second Additional Premises A, the Second Additional Premises B
and the Second Additional Premises C contain a total of 20,816 square feet of
rentable floor area (the "Rentable Floor Area of the Second Additional
Premises") and are hereinafter sometimes collectively referred to as the "Second
Additional Premises".

<PAGE>

         In addition, Landlord and Tenant have agreed to (i) provide Tenant with
a right to offer to lease 5,873 square feet of rentable floor area on the first
floor of the Building shown on Exhibit B-1 attached hereto as Offer Premises A
(hereinafter sometimes referred to as "Offer Premises A") and 5,043 square feet
of rentable floor area on the first floor of the Building shown on Exhibit B-2
attached hereto as Offer Premises B (hereinafter sometimes referred to as "Offer
Premises B") upon the terms set forth in this Second Amendment, (ii) increase
the size of the Premises adding thereto an additional 5,643 square feet of
rentable floor area (the "Rentable Floor Area of the Mandatory Expansion
Premises") on the third floor of the Building (the "Mandatory Expansion
Premises") if such Mandatory Expansion Premises shall become available for
leasing prior to March 1, 2002 upon the terms set forth in this Second Amendment
and (iii) extend the Term of the Lease for one (1) period of three (3) years and
ten (10) months upon the terms and conditions contained in the Lease, except as
set forth in this Second Amendment.

         Landlord and Tenant are entering into this instrument to set forth said
leasing of the Second Additional Premises, to integrate the Second Additional
Premises into the Lease, to set forth the leasing of the Mandatory Expansion
Premises, to provide Tenant with a right of offer, to extend the Lease Term and
to amend the Lease.

         NOW THEREFORE, in consideration of One Dollar ($1.00) and other good
and valuable consideration in hand this date paid by each of the parties to the
other, the receipt and sufficiency of which are hereby severally acknowledged,
and in further consideration of the mutual promises herein contained, Landlord
and Tenant hereby agree to and with each other as follows:

         1. (A) Effective as of the later of (i) May 1, 2000 or (ii) the date
Landlord delivers the Second Additional Premises A to Tenant (the "Second
Additional Premises A Commencement Date"), the Second Additional Premises A
shall constitute a part of the "Premises" (and "Tenant's Space") demised to
Tenant under the Lease, so that the Premises and Tenant's Space (as defined in
Section 1.1 of the Lease, as amended) shall include the Second Additional
Premises A.

            (B) Effective as of the later of (i) June 1, 2000 or (ii) the date
Landlord delivers the Second Additional Premises B to Tenant (the "Second
Additional Premises B Commencement Date"), the Second Additional Premises B
shall constitute a part of the "Premises" (and "Tenant's Space") demised to
Tenant under the Lease, so that the Premises and Tenant's Space (as defined in
Section 1.1 of the Lease, as amended) shall include the Second Additional
Premises B.

            (C) Effective as of the later of (i) May 1, 2000 or (ii) the date
Landlord delivers the Second Additional Premises C to Tenant (the "Second
Additional Premises C Commencement Date"), the Second Additional Premises C
shall constitute a part of the "Premises" (and "Tenant's Space") demised to
Tenant under the Lease, so that the Premises and Tenant's Space (as defined in
Section 1.1 of the Lease, as amended) shall include the Second Additional
Premises C.

                                       2

<PAGE>

         2. The Term of the Lease for the entire Premises, which but for this
Second Amendment is scheduled to expire on August 31, 2001, is hereby extended
for one (1) period of three (3) years and ten (10) months commencing on
September 1, 2001 and expiring on June 30, 2005 (the "Extended Term"), unless
sooner terminated or extended in accordance with the provisions of the Lease,
upon all the same terms and conditions contained in the Lease as herein amended.

         3. The remainder of the Term of the Lease after the applicable
Commencement Date for the Initial Premises, the First Additional Premises, the
Second Additional Premises A, the Second Additional Premises B and the Second
Additional Premises C shall be coterminous. Accordingly, the definition of the
"Term" as set forth in Section 1.1 of the Lease (as previously amended) is
hereby further amended by adding the following thereto:

<TABLE>
<S>                                <C>
        LEASE TERM:                 As to the Second Additional Premises A, a period
        -----------                 beginning on the Second Additional Premises A
                                    Commencement Date and ending on August 31, 2005,
                                    unless sooner terminated or extended as provided
                                    in the Lease as amended.

                                    As to the Second Additional Premises B, a
                                    period beginning on the Second Additional
                                    Premises B Commencement Date and ending on
                                    August 31, 2005, unless sooner terminated or
                                    extended as provided in the Lease as
                                    amended.

                                    As to the Second Additional Premises C, a
                                    period beginning on the Second Additional
                                    Premises C Commencement Date and ending on
                                    August 31, 2005, unless sooner terminated or
                                    extended as provided in the Lease as
                                    amended.
</TABLE>

         4. Landlord and Tenant hereby acknowledge that the definition of
"Extension Option" appearing in Section 1.1, and Section 8.20 of the Lease shall
be deleted in their entirety and Tenant's only option to extend the term of the
Lease beyond the expiration of the Extended Term shall be as provided in Section
5 hereinbelow.

         5. (A) Provided that at the time of exercise of the applicable option
to extend and at the commencement date of the applicable extension option period
(i) there exists no Event of Default (defined in Section 7.1 of the Lease), (ii)
the Lease is still in full force and effect, and (iii) Tenant has neither
assigned the Lease nor sublet any portion of the Premises (except for an
assignment or subletting permitted under Section 5.6.1 of the Lease, a
subletting of less than twenty percent (20%) in the aggregate of the then
Rentable Floor Area of the Premises or a subletting which shall by its terms
expire prior to the commencement of the applicable extension option period),
Tenant shall have the right to extend the Term of the Lease upon all the same
terms, conditions, covenants and agreements contained in the Lease (except for
the Annual Fixed Rent which shall be adjusted during the option periods as
hereinbelow set forth) for two (2) periods of five (5) years each as hereinafter
set forth.

                                       3

<PAGE>

                  (B) If Tenant desires to exercise the applicable option to
extend the Term, then Tenant shall give notice to Landlord, not earlier than
twelve (12) months nor later than nine (9) months prior to the expiration of the
Term as it may have been previously extended of Tenant's request for Landlord's
quotation of the annual fair market rent for the Premises as of the commencement
date of the applicable extension period, such quotation to be based on the use
of the Premises as first class office space utilizing properties of a similar
character within the Boston West Suburban market (including premises within the
Complex if at the time such quotation is requested such premises shall be
available for rent) (hereinafter called the "Annual Market Rent"). Within thirty
(30) days after Landlord's receipt of Tenant's notice requesting such a
quotation, Landlord shall notify Tenant of Landlord's quotation of the Annual
Market Rent. Within fifteen (15) days after receipt by Tenant of Landlord's
quotation of the Annual Market Rent, Tenant shall have the right to extend the
Term by written notice to Landlord within said last mentioned 15-day period upon
all of the same terms, conditions, covenants and agreements contained in the
Lease except that the annual fixed rent for the applicable option period shall
be equal to 95% of the Annual Market Rent as quoted by Landlord for the
applicable option period; provided, however, in no event shall the annual fixed
rent payable during the applicable option period be less than the annual fixed
rent for the last year of the Term of the Lease as it may have been extended
immediately prior to the applicable extended term and except further that the
only extension options shall be those as set forth in this Section 5 which are
unexercised. Upon the giving of such notice, the Lease and the Term of the Lease
shall be extended, for the applicable option period, without the necessity for
the execution of any additional documents (except that Landlord and Tenant agree
to enter into an instrument in writing setting forth the fixed rent); and in
such event all references to the Term or the term of the Lease shall be
construed as referring to the Term, as so extended, unless the context clearly
otherwise requires. Notwithstanding anything herein contained to the contrary,
in no event shall Tenant have the right to exercise more than one extension
option at a time and, further, Tenant shall not have the right to exercise its
second extension option unless it has duly exercised its first extension option
and be extended for more than ten (10) years after the expiration of the
Extended Term.

                  (C) Tenant's rights to extend the Term contained in this
Section 5 shall apply to all the space then leased by Tenant including without
limitation the Initial Premises, the First Additional Premises, the Second
Additional Premises, the Mandatory Expansion Premises (if leased) and any
expansion space leased by Tenant pursuant to Section 12 hereinbelow and not to
any such space independently or to less than all of such space collectively.

         6.       (A) Prior to September 1, 2001 Annual Fixed Rent for the
Initial Premises shall continue to be paid as provided in the Lease.

                  (B) Prior to September 1, 2001 Annual Fixed Rent for the
First Additional Premises shall continue to be paid as provided in Section 3 of
the First Amendment.

                  (C) For the period commencing September 1, 2001 and continuing
through the expiration of the Extended Term on June 30, 2005, Annual Fixed Rent
for the Initial Premises and the First Additional Premises shall be payable at
the annual rate of $662,331.00 (being the product of (i) $29.00 and (ii) the
Rentable Floor Area of the Initial Premises and the Rentable

                                       4

<PAGE>

Floor Area of the First Additional Premises (collectively being 22,839 square
feet)).

                  (D) During the period from the date which is sixty (60) days
subsequent to the Second Additional Premises A Commencement Date ( the "Second
Additional Premises A Rent Commencement Date") and continuing through June 30,
2005, Annual Fixed Rent for the Second Additional Premises A shall be payable at
the annual rate of $406,841.00 (being the product of (i) $29.00 and (ii) the
Rentable Floor Area of the Second Additional Premises A (being 14,029 square
feet)).

                  (E) During the period from the date which is sixty (60) days
subsequent to the Second Additional Premises B Commencement Date (the "Second
Additional Premises B Rent Commencement Date") and continuing through June 30,
2005, Annual Fixed Rent for the Second Additional Premises B shall be payable at
the annual rate of $105,212.00 (being the product of (i) $29.00 and (ii) the
Rentable Floor Area of the Second Additional Premises B (being 3,628 square
feet)).

                  (F) During the period from the date which is sixty (60) days
subsequent to the Second Additional Premises C Commencement Date (the "Second
Additional Premises C Rent Commencement Date") and continuing through June 30,
2005, Annual Fixed Rent for the Second Additional Premises C shall be payable at
the annual rate of $91,611.00 (being the product of (i) $29.00 and (ii) the
Rentable Floor Area of the Second Additional Premises C (being 3,159 square
feet)).

                  (G) Annual Fixed Rent for the Initial Premises, the First
Additional Premises and the Second Additional Premises during the extension
option periods (if exercised) shall be payable as provided in Section 5 of this
Second Amendment.

         7. Notwithstanding that Tenant's payments for Annual Fixed Rent for the
Second Additional Premises commence after the date the Lease Term commences for
such space, Tenant shall comply with all other terms of the Lease with respect
to the Second Additional Premises as of the applicable commencement date for
such space as provided hereinabove.

         8. (A) For the purposes of computing Tenant's payments for operating
expenses pursuant to Section 2.6 of the Lease as amended by Section 5 of the
First Amendment, Tenant's payments for real estate taxes pursuant to Section 2.7
of the Lease as amended by Sections 5 and 6 of the First Amendment and Tenant
payments for electricity (as determined pursuant to Sections 2.5 and 2.8 of the
Lease as amended by Section 5 of the First Amendment), for the portion of the
Term on and after the Second Additional Premises A Rent Commencement Date, the
"Rentable Floor Area of the Premises" shall include the Rentable Floor Area of
the Second Additional Premises A (being 14,029 square feet). For the portion of
the Term prior to the Second Additional Premises A Rent Commencement Date, the
"Rentable Floor Area of the Premises" shall continue to be as set forth in the
lease as amended by Section 5 of the First Amendment and this Section 8 for such
purposes.

            (B) For the purposes of computing Tenant's payments for operating
expenses

                                       5

<PAGE>

pursuant to Section 2.6 of the Lease as amended by Section 5 of the First
Amendment, Tenant's payments for real estate taxes pursuant to Section 2.7 of
the Lease as amended by Sections 5 and 6 of the First Amendment to Lease and
Tenant payments for electricity (as determined pursuant to Sections 2.5 and 2.8
of the Lease as amended by Section 5 of the First Amendment), for the portion of
the Term on and after the Second Additional Premises B Rent Commencement Date,
the "Rentable Floor Area of the Premises" shall include the Rentable Floor Area
of the Second Additional Premises B (being 3,628 square feet). For the portion
of the Term prior to the Second Additional Premises B Rent Commencement Date,
the "Rentable Floor Area of the Premises" shall continue to be as set forth in
the lease as amended by Section 5 of this First Amendment and this Section 8 for
such purposes.

            (C) For the purposes of computing Tenant's payments for operating
expenses pursuant to Section 2.6 of the Lease as amended by Section 5 of the
First Amendment, Tenant's payments for real estate taxes pursuant to Section 2.7
of the Lease as amended by Sections 5 and 6 of the First Amendment to Lease and
Tenant payments for electricity (as determined pursuant to Sections 2.5 and 2.8
of the Lease as amended by Section 5 of the First Amendment), for the portion of
the Term on and after the Second Additional Premises C Commencement Date, the
"Rentable Floor Area of the Premises" shall include the Rentable Floor Area of
the Second Additional Premises C (being 3,159 square feet). For the portion of
the Term prior to the Second Additional Premises C Rent Commencement Date, the
"Rentable Floor Area of the Premises" shall continue to be as set forth in the
Lease as amended by Section 5 of this First Amendment and this Section 8 for
such purposes.

         9. (A) For the purposes of computing Tenant's payments for operating
expenses pursuant to Section 2.6 of the Lease as amended by Section 5 of the
First Amendment, (i) with respect to the Initial Premises and the First
Additional Premises for the portion of the Lease Term on and after September 1,
2001 and (ii) with respect to the Second Additional Premises, the definition of
"Base Operating Expenses" contained in Section 1.1 of the Lease shall be deleted
in its entirety and replaced with the following:

               BASE OPERATING EXPENSES: Landlord's Operating Expenses (as
               hereinafter defined in Section 2.6) for calendar year 2001, being
               the period from January 1, 2001 through December 31, 2001

         For the portion of the Lease Term prior to September 1, 2001 with
respect to the Initial Premises and the First Additional Premises such
definition shall remain unchanged for such purposes.

            (B) For the purposes of computing Tenant's payments for real estate
taxes pursuant to Section 2.7 of the Lease as amended by Sections 5 and 6 of the
First Amendment (i) with respect to the Initial Premises and the First
Additional Premises for the portion of the Lease Term on and after September 1,
2001 and (ii) with respect to the Second Additional Premises, the definition of
"Base Taxes" contained in said Section 1.1 as amended by Section 6 of the First
Amendment shall be deleted in its entirety and replaced with the following:

                                       6

<PAGE>

               BASE TAXES: Landlord's Tax Expenses (as hereinafter defined in
               Section 2.7) for fiscal tax year 2001, being the period from July
               1, 2000 through June 30, 2001.

         For the portion of the Lease Term prior to September 1, 2001 with
respect to the Initial Premises and the First Additional Premises such
definition shall remain unchanged for such purposes.

         10. Tenant agrees to accept the Second Additional Premises in "as is"
condition. Tenant acknowledges that Landlord shall not be responsible to make
any additions, alterations, improvements, demolition or removals to the Second
Additional Premises. Further, Landlord shall not be responsible for the
installation or connection of Tenant's telephone or other communications
equipment or systems.

         11. Landlord shall provide to Tenant an allowance of $370,000.00 (the
"Tenant Allowance") which may be applied by Tenant upon written notice to
Landlord to (i) the cost of improvements in any portion of the Premises
performed by Tenant in accordance with the terms of the Lease (including
architectural, engineering and construction management fees and expenses which
have been reasonably approved by Landlord) after Tenant delivers to Landlord
invoices indicating the actual cost of such improvements reasonably satisfactory
to Landlord or (ii) the cost of improvements in any portion of the Premises
performed by Landlord. Upon request from Tenant, Landlord shall provide to
Tenant a copy of invoices evidencing the actual cost of improvements performed
by Landlord. If Landlord performs work in the Premises and such work exceeds the
Tenant Allowance, Tenant shall reimburse Landlord as additional rent, for such
excess within thirty (30) days after billing therefor by Landlord. Any unused
portion of the Tenant Allowance up to $70,000.00 as of July 31, 2001 shall be
credited against Annual Fixed Rent and additional rent next due from Tenant
pursuant to the Lease.

                                       7

<PAGE>

         12. As of the date hereof, the Mandatory Expansion Premises (as defined
hereinabove) is leased to Nason, Wall & Wall, P.C. and Legal Information
Systems, Inc. (collectively "Nason"). Such existing lease, any amendments
thereto and the terms thereof, including, but not limited to, the original terms
thereof, options to extend the terms thereof, expansion options and amendments
is hereinafter called the "Nason Lease". Subject to the Nason Lease and the
rights of Nason thereunder, which rights are prior to the rights of Tenant under
this Section, and provided that as of the date on which the Mandatory Expansion
Premises first becomes available for leasing (the "Mandatory Expansion Premises
Commencement Date") (i) no "Event of Default" (as defined in Section 7.1 of the
Lease) exists under the Lease, (ii) the Lease is still in full force and effect,
(iii) Tenant has not assigned the Lease nor sublet any portion of the Premises
(other than an assignment of subletting pursuant to Section 5.6.1 of the Lease
or a subletting of less than twenty percent (20%) in the aggregate of the then
Rentable Floor Area of the Premises) and (iv) such Mandatory Expansion Premises
Commencement Date is prior to March 1, 2002, the Mandatory Expansion Premises
shall be delivered to Tenant and added to the Premises leased by Tenant pursuant
to the Lease as of the Mandatory Expansion Premises Commencement Date upon all
of the same terms and conditions set forth in the Lease except that Annual Fixed
Rent shall be payable by Tenant for the Mandatory Expansion Premises as of the
date which is sixty (60) days subsequent to the Mandatory Expansion Premises
Commencement Date (the "Mandatory Expansion Premises Rent Commencement Date") in
an amount equal to the product of (i) $29.00 and (ii) the Rentable Floor Area of
the Mandatory Expansion Premises and Tenant's payments for operating expenses,
real estate taxes and electricity for such Mandatory Expansion Premises shall
commence as of the Mandatory Expansion Premises Rent Commencement Date and shall
be upon the same terms as the Second Additional Premises as of the Mandatory
Expansion Premises Rent Commencement Date. In the event that the Mandatory
Expansion Premises Commencement Date occurs prior to March 1, 2002, Landlord
shall provide Tenant with an allowance in the amount of $37,000.00 (the
"Mandatory Expansion Premises Allowance") which may be applied by Tenant upon
written notice to Landlord to (i) the cost of improvements (including
architectural, engineering and construction management fees and expenses which
have been reasonably approved by Landlord) in any portion of the Mandatory
Expansion Premises performed by Tenant in accordance with the terms of the Lease
after Tenant delivers to Landlord invoices indicating the actual cost of such
improvements reasonably satisfactory to Landlord or (ii) the cost of
improvements in any portion of the Premises performed by Landlord. Upon request
from Tenant, Landlord shall provide to Tenant a copy of invoices evidencing the
actual cost of improvements performed by Landlord. Further, if the Mandatory
Expansion Premises Commencement Date has not occurred prior to March 1, 2002,
Tenant shall not be entitled to the Mandatory Expansion Premises Allowance,
Tenant shall have no right to lease the Mandatory Expansion Premises and
Landlord shall be free to enter into a lease or leases of the Mandatory
Expansion Premises or any portion thereof with another prospective tenant upon
terms and conditions as Landlord shall determine, which terms may include rights
or options to extend the term or to expand the size of the premises under such
lease.

         13. As of the date hereof, Offer Premises A is leased to Astra Tech,
Inc. and Offer Premises B is leased to iKnowledge, Inc. (such Offer Space A and
Offer Space B being hereinafter sometimes collectively referred to as the "First
Offer Space"). Such existing leases,

                                       8

<PAGE>

any amendments thereto and the terms thereof, including, but not limited to, the
original terms thereof, options to extend the terms thereof, expansion options
and amendments are hereinafter called the "Existing Leases" and the tenants
under the Existing Leases are hereinafter called the "Existing Tenants". Subject
to the Existing Leases and the rights of the Existing Tenants thereunder, which
rights are prior to the rights of Tenant under this Section and provided that at
the time any portion of the First Offer Space becomes available for reletting
(i) there is no "Event of Default" (as defined in Section 7.1 of the Lease),
(ii) Tenant has not assigned the Lease or sublet any portion of the Premises
except for an assignment or subletting permitted pursuant to Section 5.6.1 of
the Lease or a subletting of less than twenty percent (20%) in the aggregate of
the then Rentable Floor Area of the Premises and (iii) the Lease is still in
full force and effect, Landlord agrees not to enter into a lease or leases to
relet such First Offer Space without first giving to Tenant an opportunity to
lease such space for the "Annual Market Rent" (as hereinafter defined) as
determined by Landlord. The "Annual Market Rent" shall be the annual fair market
rent for such space determined by Landlord as of the date when the same becomes
so available for reletting, based upon the use of such space as first class
office space utilizing properties of similar character within the Boston West
Suburban market. When any portion of the First Offer Space becomes so available
for reletting, Landlord shall notify Tenant of the availability of such space
and shall advise Tenant of the Annual Market Rent and other business terms upon
which Landlord is willing so to lease such space. If Tenant wishes to exercise
Tenant's right of offer, Tenant shall do so, if at all, by giving Landlord
notice of Tenant's desire to lease the entire amount of such space (Tenant
having no right to Lease less than the entire amount of such space) on such
terms within fifteen (15) days after receipt of Landlord's notice to Tenant of
the availability of such space and of such terms, if Tenant shall give such
notice, the same shall constitute an agreement to enter into an amendment to the
Lease setting forth the leasing of such space within thirty (30) days
thereafter, upon all of the same terms and conditions contained in the Lease,
except for the provisions of this Section, the Annual Fixed Rent which shall be
equal to the Annual Market Rent as quoted by Landlord and those provisions which
are inappropriate to the business agreement concerning such First Offer Space.
If Tenant shall not so exercise such right within such period, time being of the
essence in respect of such exercise, Tenant shall have no further right of offer
hereunder with respect to such space offered to Tenant and Landlord shall be
free to enter into a lease of such space with another prospective tenant or
tenants upon terms and conditions as Landlord shall determine, which terms may
include rights or options to extend the term or to expand the size of the
premises under such lease or leases provided, however, that if Landlord proposes
to lease such space to a third party during the period which is ninety (90) days
subsequent to Landlord's notice to Tenant advising of the availability of such
space upon terms less favorable to Landlord than contained in Landlord's offer
to Tenant, Landlord must reoffer such space to Tenant for lease in accordance
with this Section 13.

                  If Tenant shall exercise any such right of offer and if,
thereafter, the then occupant of the premises with respect to which tenant shall
have so exercised such right wrongfully fails to deliver possession of such
premises at the time when its tenancy is scheduled to expire, Landlord shall use
reasonable efforts and due diligence (which shall be limited to the commencement
and prosecution thereafter of eviction proceedings but which shall not require
the taking of any appeal) to evict such occupant from such space and deliver
possession of such space to Tenant as soon as possible. Commencement of the term
of Tenant's occupancy and lease of such additional

                                       9

<PAGE>

space shall and Tenant's obligation to pay Annual Fixed Rent or additional rent
with respect to the same, in the event of such holding over by such occupant, be
deferred until possession of the additional space is delivered to Tenant. The
failure of the then occupant of such premises to so vacate shall not give Tenant
any right to terminate the Lease or to deduct from, offset against or withhold
Annual Fixed Rent or additional rent (or any portions thereof).

         14. Landlord and Tenant hereby acknowledge and agree that the leasing
of (i) the Second Additional Premises B to Tenant as provided in this Second
Amendment is subject to Landlord and Hobbs Group Insurance Brokers, LLC ("Hobbs
Group") executing an agreement to terminate the lease between such parties (the
"Hobbs Group Agreement") and (ii) the Second Additional Premises C to Tenant as
provided in this Second Amendment is subject to Landlord and TMP Worldwide, Inc.
("TMP") executing an agreement to terminate the lease between such parties (the
"TMP Agreement"). In the event that the Hobbs Group Agreement is not executed by
Landlord and Hobbs Group, the terms of this Second Amendment shall be deemed
null and void with respect to the Second Additional Premises B only (and in such
event this Second Amendment shall remain in full force and effect with respect
to the remainder of the Second Additional Premises) and Tenant shall have no
right to lease the Second Additional Premises B. In the event that the TMP
Agreement is not executed by Landlord and TMP the terms of this Second Amendment
shall not become effective until the expiration or earlier termination of the
TMP lease for such space at which time this Second Amendment shall be in full
force and affect with respect to Second Additional Premises C.

         15. In the event at the time Tenant exercises its right under this
Section, (i) Tenant occupies for its own benefit a minimum of 49,000 square feet
of rentable floor area in the Building (ii) no "Event of Default" (as defined in
Section 7.1 of the Lease) exists and (iii) Tenant has not assigned the Lease or
sublet the Premises (except for an assignment or subletting permitted pursuant
to Section 5.6.1 of the Lease or a sublease which by its terms has expired),
Tenant shall be permitted, at Tenant's expense, to erect an exterior monument
sign in the landscaped area to the right of the main entrance of the Building
containing Tenant's name. The design, size, graphics, color and exact location
of such sign shall be subject to the prior approval of Landlord and to the
requirements of the zoning by- law for the Town of Lexington and other
applicable laws and to Tenant obtaining all necessary permits and approvals
therefor. Tenant acknowledges and agrees that Tenant's right to corporate
signage on the Site pursuant to this Section is not on an exclusive basis and
that Landlord may grant other tenants in the Complex the right to signage on the
Site. In the event Tenant erects a sign pursuant to this Section and Tenant
subsequently reduces the size of its Premises, assigns the Lease or subleases
its Premises (except for an assignment or subletting permitted pursuant to
Section 5.6.1) so that Tenant no longer leases from Landlord and occupies at
least 49,000 square feet of rentable square floor area in the Building, Tenant
agrees that it shall remove such signage at Tenant's expense.

         16. Concurrently with the execution of this Second Amendment, Tenant
shall pay to Landlord a security deposit in the amount of Five Hundred Thousand
Dollars ($500,000.00) and Landlord shall hold the same throughout the Term of
the Lease (including any extension thereof), unless sooner returned to Tenant as
provided in this Section, as security for the

                                       10

<PAGE>

performance by Tenant of all obligations on the part of Tenant to be performed
under this Lease. At Tenant's option, such deposit, or any portion thereof, may
be in the form of an irrevocable, unconditional, demand letter of credit (the
"Letter of Credit") issued by and drawn on a bank, and in a form reasonably
acceptable to Landlord, which Letter of Credit shall permit one or more draws
thereunder to be made accompanied only by certification by Landlord that
pursuant to the terms of the Lease, Landlord is entitled to apply such Letter of
Credit and the proceeds thereof to an Event of Default of Tenant under the
Lease. Any such Letter of Credit shall be for a term of two (2) years (or for
one (1) year if the issuer thereof regularly and customarily only issues letters
of credit for a maximum term of one (1) year and shall in either case be renewed
by Tenant each year thereafter and each renewal shall be delivered to and
received by Landlord not later than thirty (30) days before the expiration of
the then current Letter of Credit (herein called a "Renewal Presentation Date").
In the event of a failure to so deliver such renewal Letter of Credit on or
before the applicable Renewal Presentation Date, Landlord shall be entitled to
present the then existing letter of Credit for payment and to receive the
proceeds thereof, which proceeds shall be held as Tenant's security deposit,
subject to the terms of this Section. Upon the occurrence of any Event of
Default, Landlord shall have the right from time to time without prejudice to
any other remedy Landlord may have on account thereof, to draw on all or any
portion of such deposit held as a Letter of Credit and to apply the proceeds of
such Letter of Credit or any cash held as such deposit, or any part thereof, to
Landlord's damages arising from such Event of Default on the part of Tenant
under the terms of the Lease as amended. If Landlord so applies all or any
portion of such deposit, Tenant shall within seven (7) days after notice from
Landlord deposit cash with Landlord in an amount sufficient to restore such
deposit to the full amount stated in this Section. While Landlord holds any such
cash deposit, it shall not be responsible for paying interest thereon however
Landlord shall keep the same (provided it is in excess of $250,000.00) in an
account separate from Landlord's other funds. Neither the holder of a mortgage
nor the landlord in a ground lease on property which includes the Premises shall
ever be responsible to Tenant for the return or application of any such deposit,
whether or not it succeeds to the position of Landlord hereunder, unless such
deposit shall have been received in hand by such holder or ground landlord.

         (B) (a) Landlord shall return a One Hundred Thousand Dollars
($100,000.00) portion of such deposit to Tenant so that the remainder of such
deposit shall be Four Hundred Thousand Dollars ($400,000.00) (or if such deposit
is in the form of a Letter of Credit, Landlord shall exchange the Letter of
Credit for a Letter of Credit delivered by Tenant which reduces the amount
secured by the Letter of Credit by the amount stated hereinabove) on September
1, 2001 if (i) there has never been and is not then an Event of Default under
the terms of the Lease and (ii) Landlord has not applied such deposit or any
portion thereof to Landlord's damages arising from any default on the part of
Tenant, whether or not Tenant has restored the amount so applied by Landlord.

             (b) Landlord shall return an additional One Hundred Thousand
Dollars ($100,000.00) portion of such deposit to Tenant so that the remainder of
such deposit shall be Three Hundred Thousand Dollars ($300,000.00) (or if such
deposit is in the form of a Letter of Credit, Landlord shall exchange the Letter
of Credit for a Letter of Credit delivered by Tenant which reduces the amount
secured by the Letter of Credit by the amount stated hereinabove) in

                                       11

<PAGE>

September 1, 2002 if (i) there has never been and is not then an Event of
Default under the terms of the Lease and (ii) Landlord has not applied such
deposit, or any portion thereof, to Landlord's damages arising from any default
on the part of Tenant, whether or not Tenant has restored the amount so applied
by Landlord.

                  (c) Landlord shall return an additional One Hundred Thousand
Dollars ($100,000.00) portion of such deposit to Tenant so that the remainder of
such deposit shall be Two Hundred Thousand Dollars ($200,000.00) (or if such
deposit is in the form of a Letter of Credit, Landlord shall exchange the Letter
of Credit for a Letter of Credit delivered by Tenant which reduces the amount
secured by the Letter of Credit by the amount stated hereinabove) on September
1, 2003 if (i) there has never been and is not then an Event of Default under
the terms of the Lease and (ii) Landlord has not applied such deposit, or any
portion thereof, to Landlord's damages arising from any default on the part of
Tenant, whether or not Tenant has restored the amount so applied by Landlord.

                  (d) Tenant not then being in default and having performed all
of its obligations under the Lease, including the payment of all Annual Fixed
Rent and additional rent, Landlord shall return the deposit, or so much thereof
as shall not have theretofore been applied in accordance with the terms of this
Section, to Tenant on the expiration or earlier termination of the term of the
Lease (as the same may have been extended) and surrender possession of the
Premises by Tenant to Landlord in the condition required in the Lease at such
time.

         17. Landlord and Tenant hereby acknowledge and agree that Section
9 of the First Amendment is hereby deleted in its entirety.

         18. As of the date hereof the definition of "Number of Parking Spaces"
contained in Section 1.1 of the Lease as amended by Section 7 of the First
Amendment, shall be deleted in its entirety and replaced with the following:

                  NUMBER OF
                  PARKING SPACES:      3.3 spaces for every 1,000 square feet of
                                       Rentable Floor Area leased by Tenant in
                                       the Complex.

         19. (A) Tenant warrants and represents that Tenant has not dealt with
any broker in connection with the consummation of this Second Amendment other
than Trammell Crow Company (the "Broker") and in the event any claim is made
against Landlord relative to dealings by Tenant with brokers (other than the
Broker), Tenant shall defend the claim against Landlord with counsel of Tenant's
selection first approved by Landlord (which approval will not be unreasonably
withheld) and save harmless and indemnify Landlord on account of loss, cost or
damage which may arise by reason of such claim.

             (B) Landlord warrants and represents that Landlord has not
dealt with any broker in connection with the consummation of this Second
Amendment (other than the Broker) and in the event any claim is made against
Tenant relative to dealings by Landlord with brokers,

                                       12

<PAGE>

Landlord shall defend the claim against Tenant with counsel of Landlord's
selection and save harmless and indemnify Tenant on account of loss, cost or
damage which may arise by reason of such claim. Landlord shall be responsible
for the payment of the commission to the Broker in connection with the
consummation of this Second Amendment.

         20. Except as otherwise expressly provided herein, all capitalized
terms used herein without definition shall have the same meanings as are set
forth in the Lease.

         21. Except as herein amended the Lease shall remain unchanged and in
full force and effect. All references to the "Lease" shall be deemed to be
references to the Lease as amended by the First Amendment and as herein amended.

         EXECUTED as a sealed instrument as of the date and year first above
written.

<TABLE>
<S>                                                  <C>
WITNESS:                                             LANDLORD:

-----------------------------------------            -------------------------
                                                     STACEY A. BAKER FOR THE
                                                     TRUSTEES OF ELANDZEE TRUST
                                                     PURSUANT TO WRITTEN
                                                     DELEGATION, BUT NOT
                                                     INDIVIDUALLY

ATTEST:                                              TENANT:

                                                     CENTRA SOFTWARE, INC.

By_______________________________________            By_________________________
Name_____________________________________            Name_______________________
Title   SECRETARY OR                                 Title     PRESIDENT OR
     ------------------------------------                 ----------------------
       (ASSISTANT SECRETARY)                           (VICE PRESIDENT)
     ------------------------------------            ---------------------------
                                                      HEREUNTO DULY AUTHORIZED

                                                      By________________________
                                                      Name______________________
                                                      Title TREASURER OR
                                                            --------------------
                                                         (ASSISTANT TREASURER)
                                                      --------------------------
                                                       HEREUNTO DULY AUTHORIZED

                                                            (CORPORATE SEAL)
</TABLE>

                                       13

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