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                                                                   EXHIBIT 10.16

                               SILICON VALLEY BANK
                                3003 Tasman Drive
                             Santa Clara, Ca. 95054
                       (408) 654-1000 - Fax (408) 980-6410

                     ACCOUNTS RECEIVABLE PURCHASE AGREEMENT

         This Accounts Receivable Purchase Agreement (the "Agreement") is made
on this FIRST day of OCTOBER 1999, by and among Silicon Valley Bank ("Buyer")
having a place of business at the address specified above and ANALOGY, INC., A
OREGON CORPORATION, AND ITS WHOLLY OWNED SUBSIDIARIES ANALOGY, U.K., ANALOGY
SWEDEN AB, ANALOGY FRANCE S.A. AND ANALOGY, GMBH (individually and collectively
"Seller") having its principal place of business and chief executive office at
9205 SW Gemini Drive, Beaverton, Oregon 97008.

1. DEFINITIONS. When used herein, the following terms shall have the following
meanings.

     1.1. "Account Balance" shall mean, on any given day, the gross amount of
all Purchased Receivables unpaid on that day.

     1.2. "Account Debtor" shall have the meaning set forth in the California
Uniform Commercial Code and shall include any person liable on any Purchased
Receivable, including without limitation, any guarantor of the Purchased
Receivable and any issuer of a letter of credit or banker's acceptance.

     1.3. "Adjustments" shall mean all discounts, allowances, returns, disputes,
counterclaims, offsets, defenses, rights of recoupment, rights of return,
warranty claims, or short payments, asserted by or on behalf of any Account
Debtor with respect to any Purchased Receivable.

     1.4. "Administrative Fee" shall have the meaning as set forth in Section
3.3 hereof.

     1.5.  "Advance" shall have the meaning set forth in Section 2.2 hereof.

     1.6.  "Collateral" shall have the meaning set forth in Section 8 hereof.

     1.7. "Collections" shall mean all good funds received by Buyer from or on
behalf of an Account Debtor with respect to Purchased Receivables.

     1.8 "Compliance Certificate" shall mean a certificate, in a form provided
by Buyer to Seller, which contains the certification of the chief financial
officer of Seller that, among other things, the representations and warranties
set forth in this Agreement are true and correct as of the date such certificate
is delivered.

     1.9.  "Event of Default" shall have the meaning set forth in Section 9
hereof.

     1.10.  "Finance Charges" shall have the meaning set forth in Section 3.2
hereof.

     1.11. "Invoice Transmittal" shall mean a writing signed by an authorized
representative of Seller which accurately identifies the receivables which
Buyer, at its election, may purchase, and includes for each such receivable the
correct amount owed by the Account Debtor, the name and address of the Account
Debtor, the invoice number, the invoice date and the account code.

     1.12. "Obligations" shall mean all advances, financial accommodations,
liabilities, obligations, covenants and duties owing, arising, due or payable by
Seller to Buyer of any kind or nature, present or future, arising under or in
connection with this Agreement or under any other document, instrument or
agreement, whether or not evidenced by any note, guarantee or other instrument,
whether arising on account or by overdraft, whether direct or indirect
(including those acquired by assignment) absolute or contingent, primary or
secondary, due or to become due, now owing or hereafter arising, and however
acquired; including, without limitation, all Advances, Finance Charges,
Administrative Fees, interest, Repurchase Amounts, fees, expenses, professional
fees and attorneys' fees and any other sums chargeable to Seller hereunder or
otherwise.

     1.13. "Purchased Receivables" shall mean all those accounts, receivables,
chattel paper, instruments, contract rights, documents, general intangibles,
letters of credit, drafts, bankers acceptances, and rights to payment, and all
proceeds thereof (all of the foregoing being referred to as "receivables"),
arising out of the invoices and other agreements identified on or delivered with
any Invoice Transmittal delivered by Seller to Buyer which Buyer elects to
purchase and for which Buyer makes an Advance.

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     1.14.  "Refund" shall have the meaning set forth in Section 3.5 hereof.

     1.15.  "Reserve" shall have the meaning set forth in Section 2.4 hereof.

     1.16.  "Repurchase Amount" shall have the meaning set forth in Section 4.2
hereof.

     1.17.  "Reconciliation Date" shall mean the last calendar day of each
Reconciliation Period.

     1.18.  "Reconciliation Period" shall mean each calendar month of every
year.

2. PURCHASE AND SALE OF RECEIVABLES.

     2.1. OFFER TO SELL RECEIVABLES. During the term hereof, and provided that
there does not then exist any Event of Default or any event that with notice,
lapse of time or otherwise would constitute an Event of Default, Seller may
request that Buyer purchase receivables and Buyer may, in its sole discretion,
elect to purchase receivables. Seller shall deliver to Buyer an Invoice
Transmittal with respect to any receivable for which a request for purchase is
made. An authorized representative of Seller shall sign each Invoice Transmittal
delivered to Buyer. Buyer shall be entitled to rely on all the information
provided by Seller to Buyer on or with the Invoice Transmittal and to rely on
the signature on any Invoice Transmittal as an authorized signature of Seller.

     2.2. ACCEPTANCE OF RECEIVABLES. Buyer shall have no obligation to purchase
any receivable listed on an Invoice Transmittal. Buyer may exercise its sole
discretion in approving the credit of each Account Debtor before buying any
receivable. Upon acceptance by Buyer of all or any of the receivables described
on any Invoice Transmittal, Buyer shall pay to Seller 80 (%) percent of the face
amount of each receivable Buyer desires to purchase. Such payment shall be the
"Advance" with respect to such receivable. Buyer may, from time to time, in its
sole discretion, change the percentage of the Advance. Upon Buyer's acceptance
of the receivable and payment to Seller of the Advance, the receivable shall
become a "Purchased Receivable." It shall be a condition to each Advance that
(i) all of the representations and warranties set forth in Section 6 of this
Agreement be true and correct on and as of the date of the related Invoice
Transmittal and on and as of the date of such Advance as though made at and as
of each such date, and (ii) no Event of Default or any event or condition that
with notice, lapse of time or otherwise would constitute an Event of Default
shall have occurred and be continuing, or would result from such Advance.
Notwithstanding the foregoing, in no event shall the aggregate amount of all
Purchased Receivables outstanding at any time exceed TWO MILLION FIVE HUNDRED
THOUSAND DOLLARS ($2,500,000.00).

      2.3. EFFECTIVENESS OF SALE TO BUYER. Effective upon Buyer's payment of an
Advance, and for and in consideration therefor and in consideration of the
covenants of this Agreement, Seller hereby absolutely sells, transfers and
assigns to Buyer, all of Seller's right, title and interest in and to each
Purchased Receivable and all monies due or which may become due on or with
respect to such Purchased Receivable. Buyer shall be the absolute owner of each
Purchased Receivable. Buyer shall have, with respect to any goods related to the
Purchased Receivable, all the rights and remedies of an unpaid seller under the
California Uniform Commercial Code and other applicable law, including the
rights of replevin, claim and delivery, reclamation and stoppage in transit.

     2.4. ESTABLISHMENT OF A RESERVE. Upon the purchase by Buyer of each
Purchased Receivable, Buyer shall establish a reserve. The reserve shall be the
amount by which the face amount of the Purchased Receivable exceeds the Advance
on that Purchased Receivable (the "Reserve"); provided, the Reserve with respect
to all Purchased Receivables outstanding at any one time shall be an amount not
less than 20 (%) percent of the Account Balance at that time and may be set at a
higher percentage at Buyer's sole discretion. The reserve shall be a book
balance maintained on the records of Buyer and shall not be a segregated fund.

3.  COLLECTIONS, CHARGES AND REMITTANCES.

     3.1. COLLECTIONS. Upon receipt by Buyer of Collections, Buyer shall
promptly credit such Collections to Seller's Account Balance on a daily basis;
provided, that if Seller is in default under this Agreement, Buyer shall apply
all Collections to Seller's Obligations hereunder in such order and manner as
Buyer may

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determine. If an item of collection is not honored or Buyer does not
receive good funds for any reason, the amount shall be included in the Account
Balance as if the Collections had not been received and Finance Charges under
Section 3.2 shall accrue thereon.

     3.2. FINANCE CHARGES. On each Reconciliation Date Seller shall pay to Buyer
a finance charge in an amount equal to 1.75 (%) percent per month of the average
daily Account Balance outstanding during the applicable Reconciliation Period
(the "Finance Charges"). Buyer shall deduct the accrued Finance Charges from the
Reserve as set forth in Section 3.5 below.

     3.3. ADMINISTRATIVE FEE. On each Reconciliation Date Seller shall pay to
Buyer an Administrative Fee equal to .50 (%) percent of the face amount of each
Purchased Receivable first purchased during that Reconciliation Period (the
"Administrative Fee"). Buyer shall deduct the Administrative Fee from the
Reserve as set forth in Section 3.5 below.

     3.4. ACCOUNTING. Buyer shall prepare and send to Seller after the close of
business for each Reconciliation Period, an accounting of the transactions for
that Reconciliation Period, including the amount of all Purchased Receivables,
all Collections, Adjustments, Finance Charges, and the Administrative Fee. The
accounting shall be deemed correct and conclusive unless Seller makes written
objection to Buyer within thirty (30) days after the Buyer mails the accounting
to Seller.

     3.5. REFUND TO SELLER. Provided that there does not then exist an Event of
Default or any event or condition that with notice, lapse of time or otherwise
would constitute an Event of Default, Buyer shall refund to Seller by check
after the Reconciliation Date, the amount, if any, which Buyer owes to Seller at
the end of the Reconciliation Period according to the accounting prepared by
Buyer for that Reconciliation Period (the "Refund"). The Refund shall be an
amount equal to:

         (A) (1) The Reserve as of the beginning of that Reconciliation Period,
             PLUS

             (2) the Reserve created for each Purchased Receivable purchased
             during that Reconciliation Period, MINUS

         (B) The total for that Reconciliation Period of:

             (1)  the Administrative Fee;

             (2)  Finance Charges;

             (3)  Adjustments;

             (4) Repurchase Amounts, to the extent Buyer has agreed to accept
             payment thereof by deduction from the Refund;

             (5) the Reserve for the Account Balance as of the first day of the
             following Reconciliation Period in the minimum percentage set
             forth in Section 2.4 hereof; and

             (6) all amounts due, including professional fees and expenses, as
             set forth in Section 12 for which oral or written demand has been
             made by Buyer to Seller during that Reconciliation Period to the
             extent Buyer has agreed to accept payment thereof by deduction
             from the Refund.

In the event the formula set forth in this Section 3.5 results in an amount due
to Buyer from Seller, Seller shall make such payment in the same manner as set
forth in Section 4.3 hereof for repurchases. If the formula set forth in this
Section 3.5 results in an amount due to Seller from Buyer, Buyer shall make such
payment by check, subject to Buyer's rights under Section 4.3 and Buyer's rights
of offset and recoupment.

4.  RECOURSE AND REPURCHASE OBLIGATIONS.

     4.1. RECOURSE. Buyer's acquisition of Purchased Receivables from Seller
shall be with full recourse against Seller. In the event the Obligations exceed
the amount of Purchased Receivables and Collateral, Seller shall be liable for
any deficiency.

     4.2. SELLER'S AGREEMENT TO REPURCHASE. Seller agrees to pay to Buyer on
demand, the full face amount, or any unpaid portion, of any Purchased
Receivable:

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         (A) which remains unpaid ninety (90) calendar days after the invoice
         date; or

         (B) which is owed by any Account Debtor who has filed, or has had filed
         against it, any bankruptcy case, assignment for the benefit of
         creditors, receivership, or insolvency proceeding or who has become
         insolvent (as defined in the United States Bankruptcy Code) or who is
         generally not paying its debts as such debts become due; or

         (C) with respect to which there has been any breach of warranty or
         representation set forth in Section 6 hereof or any breach of any
         covenant contained in this Agreement; or

         (D) with respect to which the Account Debtor asserts any discount,
         allowance, return, dispute, counterclaim, offset, defense, right of
         recoupment, right of return, warranty claim, or short payment;

together with all reasonable attorneys' and professional fees and expenses and
all court costs incurred by Buyer in collecting such Purchased Receivable and/or
enforcing its rights under, or collecting amounts owed by Seller in connection
with, this Agreement (collectively, the "Repurchase Amount").

     4.3. SELLER'S PAYMENT OF THE REPURCHASE AMOUNT OR OTHER AMOUNTS DUE BUYER.
When any Repurchase Amount or other amount owing to Buyer becomes due, Buyer
shall inform Seller of the manner of payment which may be any one or more of the
following in Buyer's sole discretion: (a) in cash immediately upon demand
therefor; (b) by delivery of substitute invoices and an Invoice Transmittal
acceptable to Buyer which shall thereupon become Purchased Receivables; (c) by
adjustment to the Reserve pursuant to Section 3.5 hereof; (d) by deduction from
or offset against the Refund that would otherwise be due and payable to Seller;
(e) by deduction from or offset against the amount that otherwise would be
forwarded to Seller in respect of any further Advances that may be made by
Buyer; or (f) by any combination of the foregoing as Buyer may from time to time
choose.

     4.4. SELLER'S AGREEMENT TO REPURCHASE ALL PURCHASED RECEIVABLES. Upon and
after the occurrence of an Event of Default, Seller shall, upon Buyer's demand
(or, in the case of an Event of Default under Section 9(B), immediately without
notice or demand from Buyer) repurchase all the Purchased Receivables then
outstanding, or such portion thereof as Buyer may demand. Such demand may, at
Buyer's option, include and Seller shall pay to Buyer immediately upon demand,
cash in an amount equal to the Advance with respect to each Purchased Receivable
then outstanding together with all accrued Finance Charges, Adjustments,
Administrative Fees, attorney's and professional fees, court costs and expenses
as provided for herein, and any other Obligations. Upon receipt of payment in
full of the Obligations, Buyer shall immediately instruct Account Debtors to pay
Seller directly, and return to Seller any Refund due to Seller. For the purpose
of calculating any Refund due under this Section only, the Reconciliation Date
shall be deemed to be the date Buyer receives payment in good funds of all the
Obligations as provided in this Section 4.4.

5. POWER OF ATTORNEY. Seller does hereby irrevocably appoint Buyer and its
successors and assigns as Seller's true and lawful attorney in fact, and hereby
authorizes Buyer, regardless of whether there has been an Event of Default, (a)
to sell, assign, transfer, pledge, compromise, or discharge the whole or any
part of the Purchased Receivables; (b) to demand, collect, receive, sue, and
give releases to any Account Debtor for the monies due or which may become due
upon or with respect to the Purchased Receivables and to compromise, prosecute,
or defend any action, claim, case or proceeding relating to the Purchased
Receivables, including the filing of a claim or the voting of such claims in any
bankruptcy case, all in Buyer's name or Seller's name, as Buyer may choose; (c)
to prepare, file and sign Seller's name on any notice, claim, assignment,
demand, draft, or notice of or satisfaction of lien or mechanics' lien or
similar document with respect to Purchased Receivables; (d) to notify all
Account Debtors with respect to the Purchased Receivables to pay Buyer directly;
(e) to receive, open, and dispose of all mail addressed to Seller for the
purpose of collecting the Purchased Receivables; (f) to endorse Seller's name on
any checks or other forms of payment on the Purchased Receivables; (g) to
execute on behalf of Seller any and all instruments, documents, financing
statements and the like to perfect Buyer's interests in the Purchased
Receivables and Collateral; and (h) to do all acts and things necessary or
expedient, in furtherance of any such purposes. If Buyer receives a check or
item which is payment for both a Purchased Receivable and

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another receivable, the funds shall first be applied to the Purchased
Receivable and, so long as there does not exist an Event of Default or an
event that with notice, lapse of time or otherwise would constitute an Event
of Default, the excess shall be remitted to Seller. Upon the occurrence and
continuation of an Event of Default, all of the power of attorney rights
granted by Seller to Buyer hereunder shall be applicable with respect to all
Purchased Receivables and all Collateral.

6.  REPRESENTATIONS, WARRANTIES AND COVENANTS.

    6.1. RECEIVABLES' WARRANTIES, REPRESENTATIONS AND COVENANTS. To induce
         Buyer to buy receivables and to renders its services to Seller, and
         with full knowledge that the truth and accuracy of the following are
         being relied upon by the Buyer in determining whether to accept
         receivables as Purchased Receivables, Seller represents, warrants,
         covenants and agrees, with respect to each Invoice Transmittal
         delivered to Buyer and each receivable described therein, that:

         (A) Seller is the absolute owner of each receivable set forth in the
         Invoice Transmittal and has full legal right to sell, transfer and
         assign such receivables;

         (B) The correct amount of each receivable is as set forth in the
         Invoice Transmittal and is not in dispute;

         (C) The payment of each receivable is not contingent upon the
         fulfillment of any obligation or contract, past or future and any and
         all obligations required of the Seller have been fulfilled as of the
         date of the Invoice Transmittal;

         (D) Each receivable set forth on the Invoice Transmittal is based on
         an actual sale and delivery of goods and/or services actually
         rendered, is presently due and owing to Seller, is not past due or in
         default, has not been previously sold, assigned, transferred, or
         pledged, and is free of any and all liens, security interests and
         encumbrances other than liens, security interests or encumbrances in
         favor of Buyer or any other division or affiliate of Silicon Valley
         Bank;

         (E) There are no defenses, offsets, or counterclaims against any of
         the receivables, and no agreement has been made under which the
         Account Debtor may claim any deduction or discount, except as
         otherwise stated in the Invoice Transmittal;

         (F) Each Purchased Receivable shall be the property of the Buyer and
         shall be collected by Buyer, but if for any reason it should be paid
         to Seller, Seller shall promptly notify Buyer of such payment, shall
         hold any checks, drafts, or monies so received in trust for the
         benefit of Buyer, and shall promptly transfer and deliver the same to
         the Buyer;

         (G) Buyer shall have the right of endorsement, and also the right to
         require endorsement by Seller, on all payments received in connection
         with each Purchased Receivable and any proceeds of Collateral;

         (H) Seller, and to Seller's best knowledge, each Account Debtor set
         forth in the Invoice Transmittal, are and shall remain solvent as that
         term is defined in the United States Bankruptcy Code and the
         California Uniform Commercial Code, and no such Account Debtor has
         filed or had filed against it a voluntary or involuntary petition for
         relief under the United States Bankruptcy Code;

         (I) Each Account Debtor named on the Invoice Transmittal will not
         object to the payment for, or the quality or the quantity of the
         subject matter of, the receivable and is liable for the amount set
         forth on the Invoice Transmittal;

         (J) Each Account Debtor shall promptly be notified, after acceptance
         by Buyer, that the Purchased Receivable has been transferred to and is
         payable to Buyer, and Seller shall not take or permit any action to
         countermand such notification; and

         (K) All receivables forwarded to and accepted by Buyer after the date
         hereof, and thereby becoming Purchased Receivables, shall comply with
         each and every one of the foregoing representations, warranties,
         covenants and agreements referred to above in this Section 6.1.

6.2.     ADDITIONAL WARRANTIES, REPRESENTATIONS AND COVENANTS. In addition to
         the foregoing warranties, representations and covenants, to induce
         Buyer to buy receivables and to render its services to Seller, Seller
         hereby represents, warrants, covenants and agrees that:

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         (A) Seller will not assign, transfer, sell, or grant , or permit any
         lien or security interest in any Purchased Receivables or Collateral
         to or in favor of any other party, without Buyer's prior written
         consent;
         (B) The Seller's name, form of organization, chief executive office,
         and the place where the records concerning all Purchased Receivables
         and Collateral are kept is set forth at the beginning of this
         Agreement, Collateral is located only at the location set forth in
         the beginning of this Agreement, or, if located at any additional
         location, as set forth on a schedule attached to this Agreement, and
         Seller will give Buyer at least thirty (30) days prior written
         notice if such name, organization, chief executive office or other
         locations of Collateral or records concerning Purchased Receivables
         or Collateral is changed or added and shall execute any documents
         necessary to perfect Buyer's interest in the Purchased Receivables
         and the Collateral;
         (C) Seller shall (i) pay all of its normal gross payroll for
         employees, and all federal and state taxes, as and when due,
         including without limitation all payroll and withholding taxes and
         state sales taxes; (ii) deliver at any time and from time to time at
         Buyer's request, evidence satisfactory to Buyer that all such
         amounts have been paid to the proper taxing authorities; and (iii)
         if requested by Buyer, pay its payroll and related taxes through a
         bank or an independent payroll service acceptable to Buyer.
         (D) Seller has not, as of the time Seller delivers to Buyer an
         Invoice Transmittal, or as of the time Seller accepts any Advance
         from Buyer, filed a voluntary petition for relief under the United
         States Bankruptcy Code or had filed against it an involuntary
         petition for relief;
         (E) If Seller owns, holds or has any interest in, any copyrights
         (whether registered, or unregistered), patents or trademarks, and
         licenses of any of the foregoing, such interest has been disclosed
         to Buyer and is specifically listed and identified on a schedule to
         this Agreement, and Seller shall immediately notify Buyer if Seller
         hereafter obtains any interest in any additional copyrights,
         patents, trademarks or licenses that are significant in value or are
         material to the conduct of its business;
         (F) Seller shall provide Buyer with a Compliance Certificate (I) on
         a quarterly basis to be received by Buyer no later than the fifth
         calendar day following each calendar quarter, and; (ii) on a more
         frequent or other basis if and as requested by Buyer; and
         (G) Seller shall provide Buyer with a deferred revenue listing upon
         request.

7. ADJUSTMENTS. In the event of a breach of any of the representations,
warranties, or covenants set forth in Section 6.1, or in the event any
Adjustment or dispute is asserted by any Account Debtor, Seller shall
promptly advise Buyer and shall, subject to the Buyer's approval, resolve
such disputes and advise Buyer of any adjustments. Unless the disputed
Purchased Receivable is repurchased by Seller and the full Repurchase Amount
is paid, Buyer shall remain the absolute owner of any Purchased Receivable
which is subject to Adjustment or repurchase under Section 4.2 hereof, and
any rejected, returned, or recovered personal property, with the right to
take possession thereof at any time. If such possession is not taken by
Buyer, Seller is to resell it for Buyer's account at Seller's expense with
the proceeds made payable to Buyer. While Seller retains possession of said
returned goods, Seller shall segregate said goods and mark them "property of
Silicon Valley Bank."

8. SECURITY INTEREST. To secure the prompt payment and performance to Buyer
of all of the Obligations, Seller hereby grants to Buyer a continuing lien
upon and security interest in all of Seller's now existing or hereafter
arising rights and interest in the following, whether now owned or existing
or hereafter created, acquired, or arising, and wherever located
(collectively, the "Collateral"):

         (A) All accounts, receivables, contract rights, chattel paper,
         instruments, documents, letters of credit, bankers acceptances,
         drafts, checks, cash, securities, and general intangibles
         (including, without limitation, all claims, causes of action,
         deposit accounts, guaranties, rights in and claims under insurance
         policies (including rights to premium refunds), rights to tax
         refunds, copyrights, patents, trademarks, rights in and under
         license agreements, and all other intellectual property);
         (B) All inventory, including Seller's rights to any returned or
         rejected goods, with respect to which Buyer shall have all the rights
         of any unpaid seller, including the rights of replevin, claim and
         delivery, reclamation, and stoppage in transit;

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         (C) All monies, refunds and other amounts due Seller, including,
         without limitation, amounts due Seller under this Agreement
         (including Seller's right of offset and recoupment);
         (D) All equipment, machinery, furniture, furnishings, fixtures,
         tools, supplies and motor vehicles;
         (E) All farm products, crops, timber, minerals and the like
         (including oil and gas);
         (F) All accessions to, substitutions for, and replacements of, all
         of the foregoing;
         (G) All books and records pertaining to all of the foregoing; and
         (H) All proceeds of the foregoing, whether due to voluntary or
         involuntary disposition, including insurance proceeds.

Seller is not authorized to sell, assign, transfer or otherwise convey any
Collateral without Buyer's prior written consent, except for the sale of
finished inventory in the Seller's usual course of business. Seller agrees to
sign UCC financing statements, in a form acceptable to Buyer, and any other
instruments and documents requested by Buyer to evidence, perfect, or protect
the interests of Buyer in the Collateral. Seller agrees to deliver to Buyer the
originals of all instruments, chattel paper and documents evidencing or related
to Purchased Receivables and Collateral.

9. DEFAULT. The occurrence of any one or more of the following shall constitute
an Event of Default hereunder.

         (A) Seller fails to pay any amount owed to Buyer as and when due;
         (B) There shall be commenced by or against Seller any voluntary or
         involuntary case under the United States Bankruptcy Code, or any
         assignment for the benefit of creditors, or appointment of a
         receiver or custodian for any of its assets;
         (C) Seller shall become insolvent in that its debts are greater than
         the fair value of its assets, or Seller is generally not paying its
         debts as they become due or is left with unreasonably small capital;
         (D) Any involuntary lien, garnishment, attachment or the like is
         issued against or attaches to the Purchased Receivables or any
         Collateral;
         (E) Seller shall breach any covenant, agreement, warranty, or
         representation set forth herein, and the same is not cured to
         Buyer's satisfaction within ten (10) days after Buyer has given
         Seller oral or written notice thereof; provided, that if such breach
         is incapable of being cured it shall constitute an immediate default
         hereunder;
         (F) Seller is not in compliance with, or otherwise is in default
         under, any term of any document, instrument or agreement evidencing
         a debt, obligation or liability of any kind or character of Seller,
         now or hereafter existing, in favor of Buyer or any division or
         affiliate of Silicon Valley Bank, regardless of whether such debt,
         obligation or liability is direct or indirect, primary or secondary,
         joint, several or joint and several, or fixed or contingent,
         together with any and all renewals and extensions of such debts,
         obligations and liabilities, or any part thereof;
         (G) An event of default shall occur under any guaranty executed by
         any guarantor of the Obligations of Seller to Buyer under this
         Agreement, or any material provision of any such guaranty shall for
         any reason cease to be valid or enforceable or any such guaranty
         shall be repudiated or terminated, including by operation of law;
         (H) A default or event of default shall occur under any agreement
         between Seller and any creditor of Seller that has entered into a
         subordination agreement with Buyer; or
         (I) Any creditor that has entered into a subordination agreement
         with Buyer shall breach any of the terms of or not comply with such
         subordination agreement.

10. REMEDIES UPON DEFAULT. Upon the occurrence of an Event of Default, (1)
without implying any obligation to buy receivables, Buyer may cease buying
receivables or extending any financial accommodations to Seller; (2) all or a
portion of the Obligations shall be, at the option of and upon demand by
Buyer, or with respect to an Event of Default described in Section 9(B),
automatically and without notice or demand, due and payable in full; and (3)
Buyer shall have and may exercise all the rights and remedies under this
Agreement and under applicable law, including the rights and remedies of a
secured party under the California Uniform Commercial Code, all the power of
attorney rights described in

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Section 5 with respect to all Collateral, and the right to collect, dispose
of, sell, lease, use, and realize upon all Purchased Receivables and all
Collateral in any commercial reasonable manner. Seller and Buyer agree that
any notice of sale required to be given to Seller shall be deemed to be
reasonable if given five (5) days prior to the date on or after which the
sale may be held. In the event that the Obligations are accelerated
hereunder, Seller shall repurchase all of the Purchased Receivables as set
forth in Section 4.4.

11. ACCRUAL OF INTEREST. If any amount owed by Seller hereunder is not paid
when due, including, without limitation, amounts due under Section 3.5,
Repurchase Amounts, amounts due under Section 12, and any other Obligations,
such amounts shall bear interest at a per annum rate equal to the per annum
rate of the Finance Charges until the earlier of (i) payment in good funds or
(ii) entry of a final judgment thereof, at which time the principal amount of
any money judgment remaining unsatisfied shall accrue interest at the highest
rate allowed by applicable law.

12. FEES, COSTS AND EXPENSES; INDEMNIFICATION. The Seller will pay to Buyer
immediately upon demand all fees, costs and expenses (including fees of
attorneys and professionals and their costs and expenses) that Buyer incurs
or may from time to time impose in connection with any of the following: (a)
preparing, negotiating, administering, and enforcing this Agreement or any
other agreement executed in connection herewith, including any amendments,
waivers or consents in connection with any of the foregoing, (b) any
litigation or dispute (whether instituted by Buyer, Seller or any other
person) in any way relating to the Purchased Receivables, the Collateral,
this Agreement or any other agreement executed in connection herewith or
therewith, (d) enforcing any rights against Seller or any guarantor, or any
Account Debtor, (e) protecting or enforcing its interest in the Purchased
Receivables or the Collateral, (f) collecting the Purchased Receivables and
the Obligations, and (g) the representation of Buyer in connection with any
bankruptcy case or insolvency proceeding involving Seller, any Purchased
Receivable, the Collateral, any Account Debtor, or any guarantor. Seller
shall indemnify and hold Buyer harmless from and against any and all claims,
actions, damages, costs, expenses, and liabilities of any nature whatsoever
arising in connection with any of the foregoing.

13. SEVERABILITY, WAIVER, AND CHOICE OF LAW. In the event that any provision
of this Agreement is deemed invalid by reason of law, this Agreement will be
construed as not containing such provision and the remainder of the Agreement
shall remain in full force and effect. Buyer retains all of its rights, even
if it makes an Advance after an Event of Default. If Buyer waives an Event of
Default, it may enforce a later Event of Default. Any consent or waiver
under, or amendment of, this Agreement must be in writing. Nothing contained
herein, or any action taken or not taken by Buyer at any time, shall be
construed at any time to be indicative of any obligation or willingness on
the part of Buyer to amend this Agreement or to grant to Seller any waivers
or consents. This Agreement has been transmitted by Seller to Buyer at
Buyer's office in the State of California and has been executed and accepted
by Buyer in the State of California. This Agreement shall be governed by and
interpreted in accordance with the internal laws of the State of California.

14. ACCOUNT COLLECTION SERVICES. Certain Account Debtors may require or
prefer that all of Seller's receivables be paid to the same address and/or
party, or Seller and Buyer may agree that all receivables with respect to
certain Account Debtors be paid to one party. In such event Buyer and Seller
may agree that Buyer shall collect all receivables whether owned by Seller or
Buyer and (provided that there does not then exist an Event of Default or
event that with notice, lapse or time or otherwise would constitute an Event
of Default, and subject to Buyer's rights in the Collateral) Buyer agrees to
remit to Seller the amount of the receivables collections it receives with
respect to receivables other than Purchased Receivables. It is understood and
agreed by Seller that this Section does not impose any affirmative duty on
Buyer to do any act other than to turn over such amounts. All such
receivables and collections are Collateral and in the event of Seller's
default hereunder, Buyer shall have no duty to remit collections of
Collateral and may apply such collections to the obligations hereunder and
Buyer shall have the rights of a secured party under the California Uniform
Commercial Code.

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15. NOTICES. Unless otherwise provided in this Agreement, all notices or
demands by any party relating to this Agreement or any other agreement
entered into in connection herewith shall be in writing and (except for
financial statements and other informational documents which may be sent by
first-class mail, postage prepaid) shall be personally delivered or sent by a
recognized overnight delivery service, certified mail, postage prepaid,
return receipt requested, or by telefacsimile to Seller or to Buyer, as the
case may be, at its addresses set forth above:

16. SUBROGATION AND SIMILAR RIGHTS. Notwithstanding any other provision of
this Agreement or any other agreement by and among Seller and Buyer, each
Seller irrevocably waives all rights that it may have at law or in equity
(including, without limitation, any law subrogating the Seller to the rights
of Buyer under this Agreement) to seek contribution, indemnification, or any
other form of reimbursement from any other Seller, or any other Person now or
hereafter primarily or secondarily liable for any of the Obligations, for any
payment made by the Seller with respect to the Obligations in connection with
this Agreement or otherwise and all rights that it might have to benefit
from, or to participate in, any security for the Obligations as a result of
any payment made by the Seller with respect to the Obligations in connection
with this Agreement or otherwise. Any agreement providing for
indemnification, reimbursement or any other arrangement prohibited under this
Section shall be null and void. If any payment is made to a Seller in
contravention of this Section, such Seller shall hold such payment in trust
for Buyer and such payment shall be promptly delivered to Buyer for
application to the Obligations, whether matured or unmatured.

17. WAIVERS OF NOTICE. Each Seller waives notice of acceptance hereof; notice
of the existence, creation or acquisition of any of the Obligations; notice
of an Event of Default; notice of the amount of the Obligations outstanding
at any time; notice of intent to accelerate; notice of acceleration; notice
of any adverse change in the financial condition of any other Seller or of
any other fact that might increase the Seller's risk; presentment for
payment; demand; protest and notice thereof as to any instrument; default;
and all other notices and demands to which the Seller would otherwise be
entitled. Each Seller waives any defense arising from any defense of any
other Seller, or by reason of the cessation from any cause whatsoever of the
liability of any other Seller. Buyer's failure at any time to require strict
performance by any Seller of any provision of this Agreement shall not waive,
alter or diminish any right of Buyer thereafter to demand strict compliance
and performance therewith. Nothing contained herein shall prevent Buyer from
foreclosing on the Lien of any deed of trust, mortgage or other security
instrument, or exercising any rights available thereunder, and the exercise
of any such rights shall not constitute a legal or equitable discharge of any
Seller. Each Seller also waives any defense arising from any act or omission
of Buyer that changes the scope of the Seller's risks hereunder. Each Seller
hereby waives any right to assert against Buyer any defense (legal or
equitable), setoff, counterclaim, or claims that such Seller individually may
now or hereafter have against another Seller or any other Person liable to
Seller with respect to the Obligations in any manner or whatsoever.

18. SUBROGATION DEFENSES. Each Seller hereby waives any defense based on
impairment or destruction of its subrogation or other rights against any
other Seller and waives all benefits which might otherwise be available to it
under California Civil Code Sections 2809, 2810, 2819, 2839, 2845, 2848,
2850, 2899 and 3433 and California Code of Civil Procedure Sections 580a,
580b, 580d and 726, as those statutory provisions are now in effect and
hereafter amended, and under any other similar statutes now and hereafter in
effect.

19. RIGHT TO SETTLE, RELEASE. The liability of Sellers hereunder shall not be
diminished by (i) any agreement, understanding or representation that any of
the Obligations is or was to be guaranteed by another Person or secured by
other property, or (ii) any release or unenforceability, whether partial or
total, or rights, if any, which Seller may now or hereafter have against any
other Person, including another Seller, or property with respect to any of
the Obligations.

Without notice to any Seller and without affecting the liability of any
Seller hereunder, Buyer may (i) compromise, settle, renew, extend the time
for payment, change the manner or terms of payment, discharge the performance
of, decline to enforce, or release all or any of the Obligations with respect
to a

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<PAGE>

Seller, (ii) grant other indulgences to a Seller in respect of the
Obligations, (iii) modify in any manner any documents, relating to the
Obligations with respect to a Seller, (iv) release, surrender or exchange any
deposits or other property securing the Obligations, whether pledged by a
Seller or any other Person, or (v) compromise, settle renew, or extend the
time for payment, discharge the performance of, decline to enforce, or
release all or any obligations of any guarantor, endorser or other Person who
is now or may hereafter be liable with respect to any of the Obligations.

20. JURY TRIAL. SELLER AND BUYER EACH HEREBY (a) WAIVE THEIR RESPECTIVE
RIGHTS TO A JURY TRIAL ON ANY CLAIM OR ACTION ARISING OUT OF OR IN CONNECTION
WITH THIS AGREEMENT, ANY RELATED AGREEMENTS, OR ANY OF THE TRANSACTIONS
CONTEMPLATED HEREBY OR THEREBY; (b) RECOGNIZE AND AGREE THAT THE FOREGOING
WAIVER CONSTITUTES A MATERIAL INDUCEMENT FOR IT TO ENTER INTO THIS AGREEMENT;
AND (c) REPRESENT AND WARRANT THAT IT HAS REVIEWED THIS WAIVER, HAS
DETERMINED FOR ITSELF THE NECESSITY TO REVIEW THE SAME WITH ITS LEGAL
COUNSEL, AND KNOWINGLY AND VOLUNTARILY WAIVES ALL RIGHTS TO A JURY TRIAL.

21. TERM AND TERMINATION. The term of this Agreement shall be for one (1)
year from the date hereof, and from year to year thereafter unless terminated
in writing by Buyer or Seller. Seller and Buyer shall each have the right to
terminate this Agreement at any time. Notwithstanding the foregoing, any
termination of this Agreement shall not affect Buyer's security interest in
the Collateral and Buyer's ownership of the Purchased Receivables, and this
Agreement shall continue to be effective, and Buyer's rights and remedies
hereunder shall survive such termination, until all transactions entered into
and Obligations incurred hereunder or in connection herewith have been
completed and satisfied in full.

22. TITLES AND SECTION HEADINGS. The titles and section headings used herein
are for convenience only and shall not be used in interpreting this Agreement.

23. OTHER AGREEMENTS. The terms and provisions of this Agreement shall not
adversely affect the rights of Buyer or any other division or affiliate of
Silicon Valley Bank under any other document, instrument or agreement. The
terms of such other documents, instruments and agreements shall remain in
full force and effect notwithstanding the execution of this Agreement. In the
event of a conflict between any provision of this Agreement and any provision
of any other document, instrument or agreement between Seller on the one
hand, and Buyer or any other division or affiliate of Silicon Valley Bank on
the other hand, Buyer shall determine in its sole discretion which provision
shall apply. Seller acknowledges specifically that any security agreements,
liens and/or security interests currently securing payment of any obligations
of Seller owing to Buyer or any other division or affiliate of Silicon Valley
Bank also secure Seller's obligations under this Agreement, and are valid and
subsisting and are not adversely affected by execution of this Agreement.
Seller further acknowledges that (a) any collateral under other outstanding
security agreements or other documents between Seller and Buyer or any other
division or affiliate of Silicon Valley Bank secures the obligations of
Seller under this Agreement and (b) a default by Seller under this Agreement
constitutes a default under other outstanding agreements between Seller and
Buyer or any other division or affiliate of Silicon Valley Bank.

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<PAGE>

IN WITNESS WHEREOF, Seller and Buyer have executed this Agreement on the day
and year above written.

SELLER:  ANALOGY, INC.
By       Duane Fromhart
Title    Vice President/Controller

SELLER:  ANALOGY, U.K.
By       Duane Fromhart
Title    Vice President/Controller

SELLER:  ANALOGY SWEDEN AB
By       Duane Fromhart
Title    Vice President/Controller

SELLER:  ANALOGY FRANCE S.A.
By       Duane Fromhart
Title    Vice President/Controller

SELLER:  ANALOGY, GMBH
By       Duane Fromhart
Title    Vice President/Controller

BUYER:   SILICON VALLEY BANK
By       Don Chandler
Title    Senior Vice President

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