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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549



Form 10-Q



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|x | Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | ---------------------------------------------------------------------------------------



for the Quarterly Period Ended September 30, 2005



Commission File No. 0-13442



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MENTOR GRAPHICS
CORPORATION

(Exact name of registrant as specified in its charter)



|                                                               |  |                                  
|-------------------------------------------------------------- |  | ---------------------------------
|Oregon                                                         |  | 93-0786033                       
|(State or other jurisdiction of incorporation or organization) |  | (IRS Employer Identification No.)
|                                                               | 
|8005 SW Boeckman Road Wilsonville, Oregon                      |  | 97070-7777                       
|(Address of principal executive offices)                       |  | (Zip Code)                       



Registrants
telephone number, including area code: (503) 685-7000



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NO CHANGE

(Former name, former address and former

fiscal year, if changed since last report)



Indicate by check mark whether the registrant (1) has filed all reports required to be
filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for
the past 90 days. Yes x     No ̈



Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule
12b-2 of the Exchange Act). Yes x     No ̈



Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of
the Exchange Act). Yes ̈No x



Number of shares of common stock, no par value, outstanding as of November 1, 2005:
79,177,324



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##### Table of Contents



MENTOR GRAPHICS CORPORATION



Index to Form
10-Q



|                                                                                                                   |  |            
|------------------------------------------------------------------------------------------------------------------ |  | -----------
|                                                                                                                   |  | Page Number
|PART I        FINANCIAL INFORMATION                                                                                |  |            
|                                                                                                                   | 
|Item 1. Financial Statements                                                                                       |  |            
|                                                                                                                   | 
|Condensed Consolidated Statements of Operations for the three months ended September 30, 2005 and 2004 (unaudited) |  | 3          
|                                                                                                                   | 
|Condensed Consolidated Statements of Operations for the nine months ended September 30, 2005 and 2004 (unaudited)  |  | 4          
|                                                                                                                   | 
|Condensed Consolidated Balance Sheets as of September 30, 2005 and December 31, 2004 (unaudited)                   |  | 5          
|                                                                                                                   | 
|Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2005 and 2004 (unaudited)  |  | 6          
|                                                                                                                   | 
|Notes to Unaudited Condensed Consolidated Financial Statements                                                     |  | 7          
|                                                                                                                   | 
|Item 2.
Managements Discussion and Analysis of Results of Operations and Financial Condition                      |  | 18         
|                                                                                                                   | 
|Item 3.
Quantitative and Qualitative Disclosures About Market Risk                                                 |  | 38         
|                                                                                                                   | 
|Item 4.
Controls and Procedures                                                                                    |  | 39         
|                                                                                                                   | 
|PART II        OTHER INFORMATION                                                                                   |  |            
|                                                                                                                   | 
|Item 6.
Exhibits                                                                                                   |  | 40         
|                                                                                                                   | 
|SIGNATURES                                                                                                         |  | 40         



2



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##### Table of Contents



PART I. FINANCIAL INFORMATION



|Item 1. | Financial Statements
|------- | --------------------



Mentor Graphics Corporation

Condensed Consolidated Statements of Operations

(Unaudited)



|                                               |  |      |         |   |      |   |         |  
|---------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Three months ended September 30,               |  | 2005 |         |   | 2004 |  
|In thousands, except per share data            |  |      |         |   |      |  
|Revenues:                                      |  |      |         |   |      |   |         |  
|System and software                            |  | $    | 91,492  |   |      | $ | 89,933  |  
|Service and support                            |  |      | 73,317  |   |      |   | 72,027  |  
|                                               |  |      |         |   |      |   |         |  
|Total revenues                                 |  |      | 164,809 |   |      |   | 161,960 |  
|                                               |  |      |         |   |      |   |         |  
|Cost of revenues:                              |  |      |         |   |      |   |         |  
|System and software                            |  |      | 3,166   |   |      |   | 2,615   |  
|Service and support                            |  |      | 19,596  |   |      |   | 20,320  |  
|Amortization of purchased technology           |  |      | 3,076   |   |      |   | 2,672   |  
|                                               |  |      |         |   |      |   |         |  
|Total cost of revenues                         |  |      | 25,838  |   |      |   | 25,607  |  
|                                               |  |      |         |   |      |   |         |  
|Gross margin                                   |  |      | 138,971 |   |      |   | 136,353 |  
|                                               |  |      |         |   |      |   |         |  
|Operating expenses:                            |  |      |         |   |      |   |         |  
|Research and development                       |  |      | 51,563  |   |      |   | 50,990  |  
|Marketing and selling                          |  |      | 64,728  |   |      |   | 63,304  |  
|General and administration                     |  |      | 19,883  |   |      |   | 18,120  |  
|Amortization of intangible assets              |  |      | 1,059   |   |      |   | 916     |  
|Special charges                                |  |      | (48     | ) |      |   | 507     |  
|Merger and acquisition related charges         |  |      |        |   |      |   | 7,290   |  
|                                               |  |      |         |   |      |   |         |  
|Total operating expenses                       |  |      | 137,185 |   |      |   | 141,127 |  
|                                               |  |      |         |   |      |   |         |  
|Operating income (loss)                        |  |      | 1,786   |   |      |   | (4,774  | )
|Other income, net                              |  |      | 4,144   |   |      |   | 2,479   |  
|Interest expense                               |  |      | (5,461  | ) |      |   | (4,755  | )
|                                               |  |      |         |   |      |   |         |  
|Income (loss) before income taxes              |  |      | 469     |   |      |   | (7,050  | )
|Provision for (benefit from) income taxes      |  |      | 310     |   |      |   | (1,304  | )
|                                               |  |      |         |   |      |   |         |  
|Net income (loss)                              |  | $    | 159     |   |      | $ | (5,746  | )
|                                               |  |      |         |   |      |   |         |  
|Net income (loss) per share:                   |  |      |         |   |      |   |         |  
|Basic                                          |  | $    | 0.00    |   |      | $ | (0.08   | )
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  | $    | 0.00    |   |      | $ | (0.08   | )
|                                               |  |      |         |   |      |   |         |  
|Weighted average number of shares outstanding: |  |      |         |   |      |   |         |  
|Basic                                          |  |      | 79,135  |   |      |   | 73,213  |  
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  |      | 80,077  |   |      |   | 73,213  |  
|                                               |  |      |         |   |      |   |         |  



See accompanying notes to unaudited
consolidated financial statements.



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Mentor Graphics Corporation

Condensed Consolidated Statements of Operations

(Unaudited)



|                                               |  |      |         |   |      |   |         |  
|---------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Nine months ended September 30,                |  | 2005 |         |   | 2004 |  
|In thousands, except per share data            |  |      |         |   |      |  
|Revenues:                                      |  |      |         |   |      |   |         |  
|System and software                            |  | $    | 264,427 |   |      | $ | 282,545 |  
|Service and support                            |  |      | 219,552 |   |      |   | 213,462 |  
|                                               |  |      |         |   |      |   |         |  
|Total revenues                                 |  |      | 483,979 |   |      |   | 496,007 |  
|                                               |  |      |         |   |      |   |         |  
|Cost of revenues:                              |  |      |         |   |      |   |         |  
|System and software                            |  |      | 12,729  |   |      |   | 11,800  |  
|Service and support                            |  |      | 59,843  |   |      |   | 59,494  |  
|Amortization of purchased technology           |  |      | 8,489   |   |      |   | 7,642   |  
|                                               |  |      |         |   |      |   |         |  
|Total cost of revenues                         |  |      | 81,061  |   |      |   | 78,936  |  
|                                               |  |      |         |   |      |   |         |  
|Gross margin                                   |  |      | 402,918 |   |      |   | 417,071 |  
|                                               |  |      |         |   |      |   |         |  
|Operating expenses:                            |  |      |         |   |      |   |         |  
|Research and development                       |  |      | 159,066 |   |      |   | 147,695 |  
|Marketing and selling                          |  |      | 197,627 |   |      |   | 191,055 |  
|General and administration                     |  |      | 57,343  |   |      |   | 55,430  |  
|Amortization of intangible assets              |  |      | 3,153   |   |      |   | 2,488   |  
|Special charges                                |  |      | 2,529   |   |      |   | 4,370   |  
|Merger and acquisition related charges         |  |      | 750     |   |      |   | 7,650   |  
|                                               |  |      |         |   |      |   |         |  
|Total operating expenses                       |  |      | 420,468 |   |      |   | 408,688 |  
|                                               |  |      |         |   |      |   |         |  
|Operating income (loss)                        |  |      | (17,550 | ) |      |   | 8,383   |  
|Other income, net                              |  |      | 10,601  |   |      |   | 5,699   |  
|Interest expense                               |  |      | (16,130 | ) |      |   | (13,781 | )
|                                               |  |      |         |   |      |   |         |  
|Income (loss) before income taxes              |  |      | (23,079 | ) |      |   | 301     |  
|Provision for (benefit from) income taxes      |  |      | (12,009 | ) |      |   | 36,665  |  
|                                               |  |      |         |   |      |   |         |  
|Net loss                                       |  | $    | (11,070 | ) |      | $ | (36,364 | )
|                                               |  |      |         |   |      |   |         |  
|Net loss per share:                            |  |      |         |   |      |   |         |  
|Basic                                          |  | $    | (0.14   | ) |      | $ | (0.51   | )
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  | $    | (0.14   | ) |      | $ | (0.51   | )
|                                               |  |      |         |   |      |   |         |  
|Weighted average number of shares outstanding: |  |      |         |   |      |   |         |  
|Basic                                          |  |      | 78,440  |   |      |   | 71,045  |  
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  |      | 78,440  |   |      |   | 71,045  |  
|                                               |  |      |         |   |      |   |         |  



See accompanying notes to unaudited
consolidated financial statements.



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Mentor Graphics Corporation

Condensed Consolidated Balance Sheets

(Unaudited)



|                                                                                                              |  |                          |         |                         |   |           |  
|------------------------------------------------------------------------------------------------------------- |  | ------------------------ | ------- | ----------------------- | - | --------- | -
|In thousands                                                                                                  |  | As of September 30, 2005 |         | As of December 31, 2004 |  
|Assets                                                                                                        |  |                          |         |                         |   |           |  
|Current assets:                                                                                               |  |                          |         |                         |   |           |  
|Cash and cash equivalents                                                                                     |  | $                        | 59,021  |                         | $ | 67,916    |  
|Short-term investments                                                                                        |  |                          | 43,077  |                         |   | 26,371    |  
|Trade accounts receivable, net of allowance for doubtful accounts of $3,891 and $5,272, respectively          |  |                          | 208,512 |                         |   | 242,690   |  
|Inventory                                                                                                     |  |                          | 1,876   |                         |   | 5,168     |  
|Prepaid expenses and other                                                                                    |  |                          | 26,966  |                         |   | 23,289    |  
|Deferred income taxes                                                                                         |  |                          | 9,424   |                         |   | 10,298    |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total current assets                                                                                          |  |                          | 348,876 |                         |   | 375,732   |  
|Property, plant and equipment, net                                                                            |  |                          | 79,567  |                         |   | 91,224    |  
|Term receivables, long-term                                                                                   |  |                          | 117,408 |                         |   | 139,146   |  
|Goodwill                                                                                                      |  |                          | 345,597 |                         |   | 333,806   |  
|Intangible assets, net                                                                                        |  |                          | 37,572  |                         |   | 40,338    |  
|Deferred income taxes                                                                                         |  |                          | 21,154  |                         |   | 20,827    |  
|Other assets                                                                                                  |  |                          | 15,987  |                         |   | 20,834    |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total assets                                                                                                  |  | $                        | 966,161 |                         | $ | 1,021,907 |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Liabilities and Stockholders Equity                                                                          |  |                          |         |                         |   |           |  
|Current liabilities:                                                                                          |  |                          |         |                         |   |           |  
|Short-term borrowings                                                                                         |  | $                        | 7,210   |                         | $ | 9,632     |  
|Accounts payable                                                                                              |  |                          | 13,312  |                         |   | 18,037    |  
|Income taxes payable                                                                                          |  |                          | 18,845  |                         |   | 35,299    |  
|Accrued payroll and related liabilities                                                                       |  |                          | 54,442  |                         |   | 81,709    |  
|Accrued liabilities                                                                                           |  |                          | 34,484  |                         |   | 37,098    |  
|Deferred revenue                                                                                              |  |                          | 106,599 |                         |   | 103,336   |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total current liabilities                                                                                     |  |                          | 234,892 |                         |   | 285,111   |  
|Notes payable                                                                                                 |  |                          | 282,577 |                         |   | 283,983   |  
|Other long-term liabilities                                                                                   |  |                          | 16,705  |                         |   | 19,098    |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total liabilities                                                                                             |  |                          | 534,174 |                         |   | 588,192   |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Commitments and contingencies (Note 13)                                                                       |  |                          |         |                         |   |           |  
|Stockholders equity:                                                                                         |  |                          |         |                         |   |           |  
|Common stock, no par value, 200,000 shares authorized; 79,159 and 76,430 issued and outstanding, respectively |  |                          | 381,359 |                         |   | 363,455   |  
|Incentive stock, no par value, 1,200 shares authorized; none issued                                           |  |                          |        |                         |   |          |  
|Deferred compensation                                                                                         |  |                          |        |                         |   | (508      | )
|Retained earnings                                                                                             |  |                          | 28,647  |                         |   | 39,717    |  
|Accumulated other comprehensive income                                                                        |  |                          | 21,981  |                         |   | 31,051    |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total stockholders equity                                                                                    |  |                          | 431,987 |                         |   | 433,715   |  
|                                                                                                              |  |                          |         |                         |   |           |  
|Total liabilities and stockholders equity                                                                    |  | $                        | 966,161 |                         | $ | 1,021,907 |  
|                                                                                                              |  |                          |         |                         |   |           |  



See accompanying notes to unaudited
consolidated financial statements.



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Mentor Graphics Corporation

Condensed Consolidated Statements of Cash Flows

(Unaudited)



|                                                                                   |  |      |         |   |      |   |         |  
|---------------------------------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Nine months ended September 30,                                                    |  | 2005 |         |   | 2004 |  
|In thousands                                                                       |  |      |         |   |      |   |         |  
|Operating Cash Flows:                                                              |  |      |         |   |      |   |         |  
|Net loss                                                                           |  | $    | (11,070 | ) |      | $ | (36,364 | )
|Adjustments to reconcile net loss to net cash provided by operating activities:    |  |      |         |   |      |   |         |  
|Depreciation and amortization of property, plant and equipment                     |  |      | 18,196  |   |      |   | 18,367  |  
|Amortization                                                                       |  |      | 14,932  |   |      |   | 13,911  |  
|Deferred income taxes                                                              |  |      | 30      |   |      |   | 29,949  |  
|Changes in other long-term liabilities and minority interest                       |  |      | (1,788  | ) |      |   | (3,502  | )
|Write-down of assets                                                               |  |      | 750     |   |      |   | 8,408   |  
|Gain on sale of investments                                                        |  |      | (469    | ) |      |   | (745    | )
|Gain on sale of property, plant and equipment                                      |  |      | (957    | ) |      |   |        |  
|Changes in operating assets and liabilities, net of effect of acquired businesses: |  |      |         |   |      |   |         |  
|Trade accounts receivable                                                          |  |      | 27,021  |   |      |   | 11,606  |  
|Prepaid expenses and other                                                         |  |      | 869     |   |      |   | (2,542  | )
|Term receivables, long-term                                                        |  |      | 16,946  |   |      |   | (9,259  | )
|Accounts payable and accrued liabilities                                           |  |      | (28,799 | ) |      |   | (23,887 | )
|Income taxes payable                                                               |  |      | (15,952 | ) |      |   | 3,863   |  
|Deferred revenue                                                                   |  |      | 6,909   |   |      |   | 27,356  |  
|                                                                                   |  |      |         |   |      |   |         |  
|Net cash provided by operating activities                                          |  |      | 26,618  |   |      |   | 37,161  |  
|                                                                                   |  |      |         |   |      |   |         |  
|Investing Cash Flows:                                                              |  |      |         |   |      |   |         |  
|Proceeds from sales and maturities of short-term investments                       |  |      | 49,109  |   |      |   | 9,954   |  
|Purchases of short-term investments                                                |  |      | (65,815 | ) |      |   | (32,782 | )
|Purchases of property, plant and equipment                                         |  |      | (17,259 | ) |      |   | (16,833 | )
|Proceeds from sale of property, plant and equipment                                |  |      | 9,731   |   |      |   |        |  
|Purchases of intangible assets                                                     |  |      |        |   |      |   | (3,334  | )
|Proceeds from the sale of investments                                              |  |      | 469     |   |      |   | 745     |  
|Acquisitions of businesses and equity interests                                    |  |      | (23,648 | ) |      |   | (8,039  | )
|                                                                                   |  |      |         |   |      |   |         |  
|Net cash used in investing activities                                              |  |      | (47,413 | ) |      |   | (50,289 | )
|                                                                                   |  |      |         |   |      |   |         |  
|Financing Cash Flows:                                                              |  |      |         |   |      |   |         |  
|Proceeds from issuance of common stock                                             |  |      | 17,904  |   |      |   | 19,155  |  
|Net increase (decrease) in short-term borrowings                                   |  |      | (1,981  | ) |      |   | 2,391   |  
|Debt issuance costs                                                                |  |      | (822    | ) |      |   |        |  
|Repayment of long-term notes payable                                               |  |      | (1,265  | ) |      |   | (1,531  | )
|                                                                                   |  |      |         |   |      |   |         |  
|Net cash provided by financing activities                                          |  |      | 13,836  |   |      |   | 20,015  |  
|                                                                                   |  |      |         |   |      |   |         |  
|Effect of exchange rate changes on cash and cash equivalents                       |  |      | (1,936  | ) |      |   | (49     | )
|                                                                                   |  |      |         |   |      |   |         |  
|Net change in cash and cash equivalents                                            |  |      | (8,895  | ) |      |   | 6,838   |  
|Cash and cash equivalents at beginning of period                                   |  |      | 67,916  |   |      |   | 68,333  |  
|                                                                                   |  |      |         |   |      |   |         |  
|Cash and cash equivalents at end of period                                         |  | $    | 59,021  |   |      | $ | 75,171  |  
|                                                                                   |  |      |         |   |      |   |         |  



See accompanying notes to unaudited
consolidated financial statements.



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MENTOR GRAPHICS CORPORATION

Notes to Unaudited Condensed Consolidated Financial Statements

(In thousands, except per share amounts)



|(1) | General - The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles
and reflect all material normal recurring adjustments. However, certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles have been
condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. In the opinion of management, the condensed consolidated financial statements include adjustments necessary for a fair presentation of the results
of the interim periods presented. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Companys Annual Report on Form 10-K for the
fiscal year ended December 31, 2004.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The
preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure
of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.



|(2) | Summary of Significant Accounting Policies 
|--- | --------------------------------------------



Principles of Consolidation



The condensed consolidated financial statements include the financial statements of the Company and its wholly owned and majority-owned subsidiaries. All
significant intercompany accounts and transactions are eliminated in consolidation.



The Company does not have off-balance sheet arrangements, financings or other relationships with unconsolidated entities or other persons, also known as special purpose entities. In the ordinary course of business,
the Company leases certain real properties, primarily field office facilities and equipment, as described in Note 13.



Revenue Recognition



The Company derives system and software revenue from the sale of licenses of software products and emulation hardware systems. The Company derives service
and support revenue from software and hardware maintenance services, multi-year term contracts (or term license installment agreements) and professional services, which include consulting services, training services and other services.



For the sale of licenses of software products and related service and
support, the Company recognizes revenue in accordance with Statement of Position (SOP) 97-2, Software Revenue Recognition, as amended by SOP 98-9, Modification of SOP 97-2, Software Revenue Recognition, With Respect to Certain
Transactions. The Company recognizes revenue from perpetual license arrangements upon shipment, provided persuasive evidence of an arrangement exists, fees are fixed or determinable and collection is probable. The Company recognizes product
revenue from term license installment agreements upon shipment and start of the license term, provided persuasive evidence of an arrangement exists, fees are fixed or determinable and collection is probable. The Company uses term license installment
agreements as a standard business practice and has a history of successfully collecting under the original payment terms without making concessions on payments, products or services. In a term license agreement in which the Company provides the
customer with rights to unspecified or unreleased future products, revenue is recognized ratably over the license term.



The Company uses the residual method to recognize revenue when a license agreement includes one or more elements to be delivered at a future date if
evidence of the fair value of all undelivered elements exists. If an undelivered element of the arrangement exists under the license arrangement, revenue is deferred based on vendor-specific objective evidence of the fair value of the undelivered
element, as established by the price charged when such element is sold separately. If vendor-specific objective



7



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evidence of fair value does not exist for all undelivered elements, the Company defers all revenue until sufficient evidence exists or all elements have been
delivered.



The Company defers and recognizes revenue from
annual maintenance and support arrangements ratably over the term of the contract. The Company recognizes revenue from consulting and training when the services are performed.



For the sale of emulation hardware systems and related service and support, the Company recognizes revenue in accordance
with SEC Staff Accounting Bulletin (SAB) No. 104, Revenue Recognition. The Company recognizes revenue when the title and risk of loss have passed to the customer, there is persuasive evidence of an arrangement, delivery has occurred
or services have been rendered, the sales price is fixed or determinable and collection is probable. When the terms of sale include customer acceptance provisions and compliance with those provisions cannot be demonstrated until customer use, the
Company recognizes revenue upon acceptance. The Company provides limited warranty on emulation hardware systems generally for a period of ninety days. The Company maintains an accrued warranty reserve to provide for these potential future costs and
evaluates its adequacy on a quarterly basis. The Company recognizes service and maintenance revenues over the service period.



Accounting for Stock-Based Compensation



Statement of Financial Accounting Standards (SFAS) No. 123, Accounting for Stock-Based Compensation, defines a fair value based method of
accounting for employee stock options and similar equity instruments. As is permitted under SFAS No. 123, the Company has elected to continue to account for its stock-based compensation plans under Accounting Principles Board (APB) Opinion
No. 25, Accounting for Stock Issued to Employees, and related interpretations. The Company has computed, for pro forma disclosure purposes, the value of all stock-based awards granted during the three and nine months ended
September 30, 2005 and 2004 using the Black-Scholes option pricing model as prescribed by SFAS No. 123, as amended by SFAS No. 148, Accounting for Stock-Based Compensation  Transition and Disclosure, using the
following assumptions:



|                                      |      |                                 |   |      |                                 |   |      |      |   |      |      |  
|------------------------------------- | ---- | ------------------------------- | - | ---- | ------------------------------- | - | ---- | ---- | - | ---- | ---- | -
|Stock Option Plans                    |      | Three months endedSeptember 30, |   |      | Nine months ended September 30, |  
|                                      | 2005 |                                 |   | 2004 |                                 |   | 2005 |      |   | 2004 |     
|Risk-free interest rate               |      | 4.0                             | % |      | 3.5                             | % |      | 4.0  | % |      | 3.5  | %
|Dividend yield                        |      | 0                               | % |      | 0                               | % |      | 0    | % |      | 0    | %
|Expected life (in years)              |      | 4.4                             |   |      | 4.4                             |   |      | 4.4  |   |      | 4.4  |  
|Volatility                            |      | 45                              | % |      | 45                              | % |      | 45   | % |      | 45   | %
|                                      |      |                                
|Employee Stock Purchase Plans (ESPPs) |      | Three months endedSeptember 30, |   |      | Nine months endedSeptember 30,  |  
|                                      | 2005 |                                 |   | 2004 |                                 |   | 2005 |      |   | 2004 |     
|Risk-free interest rate               |      | 3.8                             | % |      | 2.1                             | % |      | 3.7  | % |      | 1.8  | %
|Dividend yield                        |      | 0                               | % |      | 0                               | % |      | 0    | % |      | 0    | %
|Expected life (in years)              |      | 1.25                            |   |      | 1.25                            |   |      | 1.25 |   |      | 1.25 |  
|Volatility                            |      | 45                              | % |      | 45                              | % |      | 45   | % |      | 45   | %



The Company used
expected volatility to estimate volatility for options granted during the three and nine months ended September 30, 2005 and 2004, and considers expected volatility to be more representative of prospective trends. Expected volatility is based
on the option feature embedded in the Companys convertible subordinated debentures (see Note 5), which is comparable to employee stock options. Using the Black-Scholes methodology, weighted average fair value of options granted was $3.55 and
$4.59 per share during the three months ended September 30, 2005 and 2004, respectively, and $3.64 and $5.90 for the nine months ended September 30, 2005 and 2004, respectively. The weighted average estimated fair value of purchase rights
under the ESPPs was $2.92 and $2.64 during the three months ended September 30, 2005 and 2004, respectively, and $2.60 and $1.98 for the nine months ended September 30, 2005 and 2004, respectively.



Other than with respect to options assumed through acquisitions, no
stock-based employee compensation cost is reflected in net income, as all options granted under the Companys Stock Option Plans have an exercise price equal to the market value of the underlying common stock on the date of grant and the ESPPs



8



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are considered noncompensatory under APB Opinion No. 25. The Company recorded no compensation expense for amortization of deferred compensation related
to unvested stock options assumed through acquisitions for the three months ended September 30, 2005. The Company recorded compensation expense for amortization of deferred compensation related to unvested stock options assumed through
acquisitions of $0 and $374 for the three months ended September 30, 2005 and 2004, respectively, and $508 and $1,122 for the nine months ended September 30, 2005 and 2004, respectively. If the Company had accounted for its stock-based
compensation plans in accordance with SFAS No. 123, the Companys net loss and net loss per share would approximate the pro forma disclosures below:



|                                                                                                                                                                                        |  |                                 |        |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------- | ------ | - | ------------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                                                                                                                                                                                        |  | Three months endedSeptember 30, |        |   | Nine months ended September 30, |  
|                                                                                                                                                                                        |  | 2005                            |        |   | 2004                            |   |         | 2005 |  |   | 2004    |  
|Net income (loss), as reported                                                                                                                                                          |  | $                               | 159    |   |                                 | $ | (5,746  | )    |  | $ | (11,070 | ) |  | $ | (36,364 | )
|Less: Total stock-based employee compensation expense determined under fair value based method, for all awards not previously included in net
income (loss), net of related tax benefit |  |                                 | (3,286 | ) |                                 |   | (4,268  | )    |  |   | (11,436 | ) |  |   | (13,653 | )
|                                                                                                                                                                                        |  |                                 |        |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Pro forma net loss                                                                                                                                                                      |  | $                               | (3,127 | ) |                                 | $ | (10,014 | )    |  | $ | (22,506 | ) |  | $ | (50,017 | )
|                                                                                                                                                                                        |  |                                 |        |   |                                 |   |         |      |  |   |         |   |  |   |         |  
|Basic net income (loss) per share  as reported                                                                                                                                         |  | $                               |       |   |                                 | $ | (.08    | )    |  | $ | (.14    | ) |  | $ | (.51    | )
|Basic net loss per share  pro forma                                                                                                                                                    |  | $                               | (.04   | ) |                                 | $ | (.14    | )    |  | $ | (.29    | ) |  | $ | (.70    | )
|Diluted net income (loss) per share  as reported                                                                                                                                       |  | $                               |       |   |                                 | $ | (.08    | )    |  | $ | (.14    | ) |  | $ | (.51    | )
|Diluted net loss per share  pro forma                                                                                                                                                  |  | $                               | (.04   | ) |                                 | $ | (.14    | )    |  | $ | (.29    | ) |  | $ | (.70    | )



Reclassifications



Certain reclassifications have been made in the
accompanying condensed consolidated financial statements for 2004 to conform to the 2005 presentation.



|(3) | Net Income (Loss) Per Share  Basic net income (loss) per share is computed using the weighted average number of common shares outstanding during the period.
Diluted net income (loss) per share is computed using the weighted average number of common shares and dilutive potential common shares outstanding during the period. Dilutive common shares consist of common shares issuable upon exercise of employee
stock options, purchase rights from Employee Stock Purchase Plans and warrants using the treasury stock method and common shares issuable upon conversion of the convertible subordinated notes and convertible subordinated debentures, if dilutive.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The following provides the computation of basic
and diluted net income (loss) per share:



|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  
|--------------------------------------------------------------------------------------------------------- |  | -------------------------------- | ------ | ---- | ------------------------------- | ------ | ---- |  | - | ------- | - |  | - | ------- | -
|                                                                                                          |  | Three months ended September 30, |        |      | Nine months ended September 30, |       
|                                                                                                          |  | 2005                             |        | 2004 |                                 |        | 2005 |  |   | 2004    |  
|Net income (loss)                                                                                         |  | $                                | 159    |      | $                               | (5,746 | )    |  | $ | (11,070 | ) |  | $ | (36,364 | )
|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  
|Weighted average shares used to calculate basic net income (loss) per share                               |  |                                  | 79,135 |      |                                 | 73,213 |      |  |   | 78,440  |   |  |   | 71,045  |  
|Employee stock options and employee stock purchase plan                                                   |  |                                  | 942    |      |                                 |       |      |  |   |        |   |  |   |        |  
|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  
|Weighted average common and potential common shares used to calculate diluted net income (loss) per share |  |                                  | 80,077 |      |                                 | 73,213 |      |  |   | 78,440  |   |  |   | 71,045  |  
|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  
|Basic net income (loss) per share                                                                         |  | $                                |       |      | $                               | (.08   | )    |  | $ | (.14    | ) |  | $ | (.51    | )
|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  
|Diluted net income (loss) per share                                                                       |  | $                                |       |      | $                               | (.08   | )    |  | $ | (.14    | ) |  | $ | (.51    | )
|                                                                                                          |  |                                  |        |      |                                 |        |      |  |   |         |   |  |   |         |  



9



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Options and warrants to purchase 19,011 and 18,288 shares of common stock for the three months ended
September 30, 2005 and 2004, respectively, and 19,226 and 18,578 for the nine months ended September 30, 2005 and 2004, respectively, were not included in the computation of diluted earnings per share. The options and warrants were
anti-dilutive either because the Company incurred a net loss or because the exercise price was greater than the average market price of the common shares for the respective periods. The effect of the conversion of the Companys convertible
subordinated notes (Notes) and convertible subordinated debentures (Debentures) for the three and nine months ended September 30, 2005 and 2004 was anti-dilutive and therefore not included in the computation of diluted earnings per share. If
the Notes had been dilutive, the Companys net income (loss) per share would have included additional earnings, primarily from the reduction of interest expense, of $2,681 and $2,648 for the three months ended September 30, 2005 and 2004,
respectively, and $8,044 and $7,944 for the nine months ended September 30, 2005 and 2004, respectively. The calculation would also have included additional incremental shares of 7,369 for the three and nine months ended September 30, 2005
and 7,413 shares for the three and nine months ended September 30, 2004. If the Debentures had been dilutive, additional earnings of $1,332 and $847 for the three months ended September 30, 2005 and 2004, respectively, and $3,596 and
$2,384 for the nine months ended September 30, 2005 and 2004, respectively, and incremental shares of 4,700 for all periods would have been included in the calculation of net income (loss) per share.



|(4) | Short-Term Borrowings In June 2005, the Company entered into a syndicated, senior, unsecured revolving credit facility that replaced an existing
three-year revolving credit facility. Borrowings under the facility are permitted to a maximum of $120,000. The facility is a four-year revolving credit facility, which terminates on June 1, 2009. Under this facility, the Company has the option
to pay interest based on LIBOR with varying maturities which are commensurate with the borrowing period selected by the Company, plus a spread of between 1.0% and 1.6% or prime plus a spread of between 0.0% and 0.6%, based on a pricing grid tied to
a financial covenant. As a result, the Companys interest expense associated with borrowings under this credit facility will vary with market interest rates. In addition, commitment fees are payable on the unused portion of the credit facility
at rates between 0.25% and 0.35% based on a pricing grid tied to a financial covenant. In connection with entering into the new facility during June 2005, the Company (i) capitalized $822 of upfront fees and related debt costs, which will be
amortized until maturity in 2009, and (ii) wrote off $397 of unamortized bank fees and other costs related to the 2003 revolving credit facility. The facility contains certain financial and other covenants, including financial covenants
requiring the maintenance of specified liquidity ratios, leverage ratios and minimum tangible net worth. The Company had no borrowings during 2005 and 2004 against this credit facility or against the previous credit facility and had no balance
outstanding at September 30, 2005 or December 31, 2004.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Other short-term borrowings include borrowings on multi-currency lines of credit, capital leases and other borrowings. Interest rates are generally based on the applicable countrys prime lending rate, depending
on the currency borrowed. Other short-term borrowings of $7,210 and $9,632 were outstanding under these facilities at September 30, 2005 and December 31, 2004, respectively.



|(5) | Long-Term Notes Payable  In August 2003, the Company issued $110,000 of Floating Rate Convertible Subordinated Debentures (Debentures) due 2023 in a private
offering pursuant to SEC Rule 144A. The Debentures have been registered with the SEC for resale under the Securities Act of 1933. Interest on the Debentures is payable quarterly in February, May, August and November, at a variable interest rate
equal to 3-month LIBOR plus 1.65%. The effective interest rate was 4.69% and 2.92% for the nine months ended September 30, 2005 and 2004, respectively. The Debentures are convertible, under certain circumstances, into the Companys common
stock at a conversion price of $23.40 per share, for a total of 4,700 shares. These circumstances generally include (i) the market price of the Companys common stock exceeding 120% of the conversion price, (ii) the market price of
the Debentures declining to less than 98% of the value of the common stock into which the Debentures are convertible or (iii) a call for redemption of the Debentures or certain other corporate transactions. The conversion price may also be
adjusted based on certain future transactions, such as stock splits or stock dividends. Some or all of the Debentures may be redeemed by the Company for cash on or after August 6, 2007. Some or all of the Debentures may be redeemed at the
option of the holder for cash on August 6, 2010, 2013 or 2018.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



In June 2002, the Company issued $172,500 of 6 7/8% Convertible Subordinated Notes (Notes) due 2007 in a private offering pursuant to SEC Rule 144A. The Notes have been registered with the SEC for resale under the
Securities Act of 1933. The Company pays interest on the Notes semi-annually in June and December. The Notes are convertible into 7,370 shares of the Companys common stock at a conversion price of $23.27 per share for the Notes remaining
outstanding at September 30, 2005. The Company may



10



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##### Table of Contents

redeem some or all of the Notes for cash. The Notes rank pari passu with the Debentures. In 2004, the Company purchased on the open market Notes with a
principal balance of $1,000 for a total purchase price of $1,028. In connection with this purchase, the Company incurred before tax expenses for the early extinguishment of debt of $43. Expenses included the call premium on the Notes and the
write-off of unamortized deferred debt issuance costs.



Other
long-term notes payable include multi-currency notes payable and capital leases. Interest rates are generally based on the applicable countrys prime lending rate, depending on the currency borrowed. Other long-term notes payable of $1,094 and
$2,483 were outstanding under these agreements at September 30, 2005 and December 31, 2004, respectively.



|(6) | Stock Repurchases  There were no repurchases in the nine months ended September 30, 2005 and 2004. The Company considers market conditions, alternative uses of
cash and balance sheet ratios when evaluating share repurchases.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(7) | Supplemental Cash Flow InformationThe following provides additional information concerning supplemental disclosures of cash flow activities:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------



|                                               |  |      |        |      |   |       
|---------------------------------------------- |  | ---- | ------ | ---- | - | ------
|Nine months ended September 30,                |  | 2005 |        | 2004
|Cash paid for:                                 |  |      |        |      |   |       
|Interest                                       |  | $    | 11,021 |      | $ | 9,287 
|Income taxes                                   |  | $    | 4,059  |      | $ | 1,158 
|Common stock issued for purchase of a business |  | $    |       |      | $ | 49,576



|(8) | Comprehensive LossThe following provides a summary of comprehensive loss:
|--- | --------------------------------------------------------------------------



|                                                           |  |      |         |   |      |   |         |  
|---------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Nine months ended September 30,                            |  | 2005 |         |   | 2004 |  
|Net loss                                                   |  | $    | (11,070 | ) |      | $ | (36,364 | )
|Change in unrealized gain (loss) on derivative instruments |  |      | (927    | ) |      |   | 687     |  
|Change in accumulated translation adjustment               |  |      | (8,143  | ) |      |   | (1,155  | )
|                                                           |  |      |         |   |      |   |         |  
|Comprehensive loss                                         |  | $    | (20,140 | ) |      | $ | (36,832 | )
|                                                           |  |      |         |   |      |   |         |  



|(9) | Special Charges For the nine months ended September 30, 2005, the Company recorded special charges of $2,529. These charges primarily consisted of costs
incurred for employee terminations.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The Company
rebalanced its workforce by 68 employees during the nine months ended September 30, 2005. The reduction impacted several employee groups. Employee severance costs of $2,763 included severance benefits, notice pay and outplacement services. The
total rebalance charge represents the aggregate of numerous unrelated rebalance plans, none of which was individually material to the Companys financial position or results of operations. Termination benefits were communicated to the affected
employees prior to the end of the quarter in which the charge was recorded. The majority of these costs were expended during the first nine months of 2005. There have been no significant modifications to the amount of these charges.



In addition, during the nine months ended September 30, 2005, the
Company recorded a benefit to special charges of $550 due to the reversal of previously recorded non-cancelable lease payments related to an abandoned facility in North America which has been sublet at a higher rate than the previously expected
sublease income. Other costs of $316 include legal costs incurred to sever any ongoing obligation related to a defined benefit pension plan acquired in connection with an acquisition in 1999, excess leased facility costs, and other costs incurred to
restructure the organization.



11



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For the nine months ended September 30, 2004, the Company recorded special charges of $4,370. These
charges primarily consisted of accruals for excess leased facilities and costs incurred for employee terminations.



Excess leased facility costs of $1,240 primarily consisted of adjustments to previously recorded non-cancelable lease payments for leases of facilities in
North America and Europe. These adjustments resulted from reductions to the estimated expected sublease income primarily due to the real estate markets in which these facilities are located remaining at depressed levels longer than originally
anticipated. Non-cancelable lease payments on these excess leased facilities should be expended over seven years. In addition, the Company recorded a $758 write-off of leasehold improvements for a facility in North America that was previously
abandoned.



The Company rebalanced its workforce by 41
employees during the nine months ended September 30, 2004. The reduction impacted several employee groups. Employee severance costs of $1,997 included severance benefits, notice pay and outplacement services. Termination benefits were
communicated to the affected employees prior to the end of the quarter in which the employees were terminated. The majority of these costs were expended during 2004. There have been no significant modifications to the amount of these charges.



Other costs in 2004 of $590 included costs incurred to
restructure the organization other than employee rebalances and excess leased facility costs. In addition, the Company reversed $215 of the remaining accrual related to the emulation litigation with Cadence Design Systems, Inc.



Accrued special charges are included in accrued liabilities and other
long-term liabilities on the consolidated balance sheets. The following table shows changes in accrued special charges during 2005:



|                                                |  |                                          |        |                         |   |       |              |  |   |                                                   |   |  |   |      
|----------------------------------------------- |  | ---------------------------------------- | ------ | ----------------------- | - | ----- | ------------ |  | - | ------------------------------------------------- | - |  | - | -----
|                                                |  | AccruedSpecialCharges atDecember 31,2004 |        | 2005Charges /(Benefits) |   |       | 2005Payments |  |   | Accrued Special Charges at September 30, 2005 (1)
|Employee severance and related costs            |  |                                          | 3,038  |                         |   | 2,763 |              |  |   | (5,197                                            | ) |  |   | 604  
|Lease termination fees and other facility costs |  |                                          | 8,007  |                         |   | (459  | )            |  |   | (920                                              | ) |  |   | 6,628
|Other costs                                     |  |                                          | 1,287  |                         |   | 225   |              |  |   | (143                                              | ) |  |   | 1,369
|                                                |  |                                          |        |                         |   |       |              |  |   |                                                   |   |  |   |      
|Total                                           |  | $                                        | 12,332 |                         | $ | 2,529 |              |  | $ | (6,260                                            | ) |  | $ | 8,601
|                                                |  |                                          |        |                         |   |       |              |  |   |                                                   |   |  |   |      



|(1) | Of the $8,601 total accrued special charges at September 30, 2005, $5,118 represented the long-term portion of accrued lease termination fees and other facility costs, net of
sublease income. The remaining balance of $3,483 represented the short-term portion of accrued special charges.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(10) | Merger and Acquisition Related ChargesIn September 2005, the Company acquired Accelerated Technology (UK) Limited, a distributorship of Mentor
Graphics products and services. The total purchase price including acquisition costs was $905. The excess of tangible assets acquired over liabilities assumed was $613. The cost of the acquisition was allocated on the basis of the estimated
fair value of assets acquired and liabilities assumed. The preliminary purchase accounting allocations resulted in a value assigned to goodwill of $202 and other identified intangible assets of $90. The other identified intangible assets will be
amortized to operating expenses over three years.
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



In May 2005, the Company acquired Volcano Communications Technologies AB (Volcano), a provider of network design tools, in-vehicle software and test and validation products for the automotive industry. The acquisition was an investment
aimed at expanding the Companys product offering within this specialized industry and driving revenue growth. The total purchase price including acquisition costs was $23,155. In addition, the Company recorded severance costs related to
Volcano employees of $84, which will result in cash expenditures within twelve months of the date of acquisition. Severance costs affected five employees who were terminated due to the overlap of employee skill sets as a result of the acquisition.
The excess of



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##### Table of Contents

tangible assets acquired over liabilities assumed was $4,818. The cost of the acquisition was allocated on the basis of the estimated fair value of assets
acquired and liabilities assumed. The purchase accounting allocations resulted in a charge for in-process research and development (R&D) of $580, goodwill of $11,202, technology of $2,450, deferred tax asset of $1,512, and other identified
intangible assets of $4,800, net of related deferred tax liability of $2,030. The technology will be amortized to cost of revenues over four years and other identified intangible assets will be amortized to operating expenses over five years. Of the
$4,800 of other identified intangible assets, $3,700 will be amortized to operating expenses over five years and $1,100 will be amortized to operating expenses over two years.



In June 2005, the Company purchased certain assets and assumed certain liabilities from Aptix Corporation (Aptix), a
provider of reconfigurable prototyping products. Aptix was in Chapter 11 bankruptcy at the time the purchase agreement was negotiated and closed. The purchase was an investment in a niche market that complemented the more expensive emulation systems
sold by the Company. The total purchase price including acquisition costs was $1,835. In addition, the Company recorded costs of vacating a leased facility of Aptix of $58. The excess of tangible assets acquired over liabilities assumed was $92. The
cost of the acquisition was allocated on the basis of the estimated fair value of assets acquired and liabilities assumed. The purchase accounting allocations resulted in a charge for in-process R&D of $170, goodwill of $251, technology of $780
and other identified intangible assets of $600. The technology will be amortized to cost of revenues over two years, and other identified intangible assets will be amortized to operating expenses over three years.



During the nine months ended September 30, 2004, the Company acquired
0-In Design Automation Inc. (0-In), a provider of electronic design automation tools for integrated circuit and system-on-chip designs. The acquisition was an investment aimed at expanding the Companys product offering and increasing revenue
growth, which supported the premium paid over the fair market value of the individual assets. The outstanding shares of common stock and preferred stock of 0-In were converted into approximately 4,507 shares of the Companys common stock, of
which approximately 541 shares were deposited in an indemnity escrow account. The shares were valued at the closing price of $11.00 per share as reported on The NASDAQ Stock Market on September 1, 2004. 0-In stockholders and certain employees
will receive future contingent earn-out payments based on the Companys revenues derived from 0-In products and technologies. The total purchase price including acquisition costs was $52,319. The Company recorded severance costs related to 0-In
employees of $104 due to the overlap of employee skill sets as a result of the acquisition. In addition, the Company recorded costs for termination of a distributor contract of $282. The excess of tangible assets acquired over liabilities assumed
was $1,318. The Company recorded earn-out amounts based on related revenues derived from 0-In products and technologies of $884 in 2004 and $670 in the nine months ended September 30, 2005. The cost of the acquisition, including subsequent
earn-out, was allocated on the basis of the estimated fair value of assets and liabilities assumed. The purchase accounting allocations resulted in a charge for in-process R&D of $6,400, goodwill of $40,307, technology of $4,400, and other
identified intangible assets of $5,990, net of related deferred tax liability of $4,156. The technology is being amortized to cost of revenues over three years. The other identified intangible assets are being amortized to operating expenses over
two to five years.



Additionally, during the nine months ended
September 30, 2004, the Company acquired (i) Project Technology Inc., (ii) the remaining 49% ownership interest of its Korean distributor, Mentor Korea Co. Ltd. (MGK), for a total ownership interest of 100%, and (iii) the
parallel and serial ATA IP business division of Palmchip Corporation (Palmchip). The acquisitions were investments aimed at expanding the Companys product offerings and increasing revenue growth. The aggregate purchase price including
acquisition costs for these three acquisitions was $7,750. The aggregate excess of liabilities assumed over tangible assets acquired was $338. The minority interest recorded in connection with the original 51% ownership in MGK was $3,383, less
dividends paid in prior years to minority shareholders of $1,975, reducing the acquisition cost to be allocated by a total of $1,408. The purchase accounting allocations resulted in a charge for in-process R&D of $1,250, goodwill of $3,690,
technology of $1,050 and other identified intangible assets of $770, net of related deferred tax liability of $80. The technology is being amortized to cost of revenues over two to three years. The other identified intangible assets are being
amortized to operating expenses over three years. In connection with the Palmchip acquisition, the Company concurrently licensed software to Palmchip under term licenses and entered into an agreement to provide services. Payment for these
arrangements was incorporated into the purchase price of the acquisition and resulted in a reduction of cash paid to Palmchip of $1,208. The Company used an independent third party valuation firm to determine the allocation of the purchase price of
these acquisitions.



13



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The separate results of operations for the acquisitions during the nine months ended September 30,
2005 and 2004 were not material compared to the Companys overall results of operations and accordingly pro-forma financial statements of the combined entities have been omitted. The results of operations are included in the Companys
consolidated financial statements from the date of acquisition forward.



|(11) | Gain on Sale of Asset  In March 2005, the Company sold a building located in Wilsonville, Oregon that had previously been leased to a third party for net
proceeds of $9,731, recognizing a gain on the sale of $957 during the nine months ended September 30, 2005.
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(12) | Derivative Instruments and Hedging Activities  The Company is exposed to fluctuations in foreign currency exchange rates. To manage the volatility, exposures are
aggregated on a consolidated basis to take advantage of natural offsets. For exposures that are not offset, the Company enters into short-term foreign currency forward and option contracts to partially offset these anticipated exposures. The primary
exposures that do not currently have natural offsets are the Japanese yen where the Company is in a long position and the Euro and the British pound sterling where the Company is in a short position. See the discussion of revenues and expenses
denominated in foreign currencies in Effects of Foreign Currency Fluctuations under Item 2, Managements Discussion and Analysis of Results of Operations and Financial Condition. The Company formally documents all
relationships between foreign currency contracts and hedged items as well as its risk management objectives and strategies for undertaking various hedge transactions. All hedges designated as cash flow hedges are linked to forecasted transactions,
and the Company assesses, both at inception of the hedge and on an ongoing basis, the effectiveness of the foreign exchange contracts in offsetting changes in the cash flows of the hedged items. The effective portions of the net gains or losses on
foreign currency contracts are reported as a component of accumulated other comprehensive income in stockholders equity. Accumulated other comprehensive income associated with hedges of forecasted transactions is reclassified to the
consolidated statement of operations in the same period as the forecasted transaction occurs. The Company discontinues hedge accounting prospectively when it is determined that a foreign currency contract is not highly effective as a hedge under the
requirements of SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities. Any gain or loss deferred through that date remains in accumulated other comprehensive income until the forecasted transaction occurs at
which time it is reclassified to the consolidated statement of operations. To the extent the transaction is no longer deemed probable of occurring, hedge accounting treatment is discontinued prospectively and amounts deferred are reclassified to
other income or expense.
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The fair value of
foreign currency forward and option contracts, recorded in prepaid expenses and other in the consolidated balance sheet, was $1,163 and $3,264 at September 30, 2005 and December 31, 2004, respectively.



The following provides a summary of activity in accumulated other
comprehensive income relating to the Companys hedging program:



|                                             |  |      |       |   |      |   |       |  
|-------------------------------------------- |  | ---- | ----- | - | ---- | - | ----- | -
|Nine months ended September 30,              |  | 2005 |       |   | 2004 |  
|Beginning balance                            |  | $    | 1,144 |   |      | $ |      |  
|Changes in fair value of cash flow hedges    |  |      | (562  | ) |      |   | 1,014 |  
|Hedge ineffectiveness recognized in earnings |  |      | (532  | ) |      |   |      |  
|Net (gain) loss transferred to earnings      |  |      | 167   |   |      |   | (327  | )
|                                             |  |      |       |   |      |   |       |  
|Net unrealized gain                          |  | $    | 217   |   |      | $ | 687   |  
|                                             |  |      |       |   |      |   |       |  



The remaining balance
in accumulated other comprehensive income at September 30, 2005 represents a net unrealized gain on foreign currency contracts relating to hedges of forecasted revenues and expenses expected to occur during 2005 and 2006. These amounts will be
transferred to the consolidated statement of operations upon recognition of the related revenue and recording of the respective expenses. The Company expects substantially all of the balance in accumulated other comprehensive income to be
reclassified to the consolidated statement of operations within the next twelve months. The Company transferred a deferred loss of $425 and a deferred gain of $897 to system and software revenues relating to foreign currency contracts hedging
revenues for the nine months ended September 30, 2005 and 2004, respectively. The Company transferred a deferred gain of $258 and a deferred loss of $570 to operating



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expenses relating to foreign currency contracts hedging commission and other expenses for the nine months ended September 30, 2005 and 2004,
respectively.



The Company discontinued hedges of Japanese yen
revenues during the nine months ended September 30, 2005 because it was probable that the original forecasted transactions would not occur. As a result, the Company recognized a gain in hedge ineffectiveness of $367. Additionally, the Company
reclassified a gain of $165 from accumulated other comprehensive income to hedge ineffectiveness for hedged transactions that failed to occur. The Company recorded hedge ineffectiveness in other income, net.



The Company enters into foreign currency contracts to offset the earnings
impact relating to the variability in exchange rates on certain short-term monetary assets and liabilities denominated in non-functional currencies. These foreign exchange contracts are not designated as hedges. Changes in the fair value of these
contracts are recognized currently in earnings in other income, net to offset the remeasurement of the related assets and liabilities.



In accordance with SFAS No. 133, the Company excludes changes in fair value relating to time value of foreign currency contracts from its assessment
of hedge effectiveness. The Company recorded income relating to time value in other income, net, of $501 and $352 for the three months ended September 30, 2005 and 2004, respectively, and $1,487 and $737 for the nine months ended
September 30, 2005 and 2004, respectively. The Company recorded expense related to time value in interest expense of $405 and $137 for the three months ended September 30, 2005 and 2004, respectively, and $968 and $375 for the nine months
ended September 30, 2005 and 2004, respectively.



|(13) | Commitments and Contingencies 
|---- | -------------------------------



Leases



The Company leases a majority of its field office facilities under non-cancelable operating leases. In addition, the Company leases certain equipment used
in its research and development activities. This equipment is generally leased under one to two year lease terms.



Indemnifications



The Companys license and services agreements generally include a limited indemnification provision for claims from third parties relating to the
Companys intellectual property. Such indemnification provisions are accounted for in accordance with SFAS No. 5, Accounting for Contingencies. The indemnification is generally limited to the amount paid by the customer or a
multiple of that amount. At September 30, 2005, the Company is not aware of any material liabilities arising from these indemnifications.



Legal Proceedings



From time to time the Company is involved in various disputes and litigation matters that arise from the ordinary course of business. These include
disputes and lawsuits relating to intellectual property rights, licensing, contracts and employee relations matters. The Company believes that the outcome of current litigation, individually and in the aggregate, will not have a material effect on
the Companys results of operations.



|(14) | Related Party Transactions - Certain members of the Companys Board of Directors also serve on the Board of Directors of certain of the Companys customers.
The Company recognized revenue from these customers of $3,262 and $3,101 during the three months ended September 30, 2005 and 2004, respectively, which represented 2.0% and 1.9% of the Companys total revenues, respectively. The Company
recognized revenue from these customers of $11,588 and $10,361 during the nine months ended September 30, 2005 and 2004, respectively, which represented 2.4% and 2.1% of the Companys total revenues, respectively. Management believes the
transactions between the Company and these customers were carried out on an arms length basis.
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(15) | Segment Reporting - SFAS No. 131, Disclosures about Segments of an Enterprise and Related Information, requires disclosures of certain information
regarding operating segments, products and services, geographic areas of operation and major customers. To determine what information to report under SFAS No. 131, the Company reviewed the Chief Operating Decision Makers (CODM) method of
analyzing the operating segments to determine resource allocations and performance assessments. The Companys CODMs are the Chief Executive Officer and the President.
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The Company operates exclusively in the electronic design automation (EDA) industry. The Company markets its products and
services worldwide, primarily to large companies in the military/aerospace,



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communications, computer, consumer electronics, semiconductor, networking, multimedia and transportation industries. The Company sells and licenses its
products through its direct sales force in North America, Europe, Japan and the Pacific Rim, and through distributors where third parties can extend sales reach more effectively or efficiently. The Companys reportable segments are based on
geographic area.



All intercompany revenues and expenses are
eliminated in computing revenues and operating income (loss). The corporate component of operating income (loss) represents research and development, corporate marketing and selling, corporate general and administration, special charges and merger
and acquisition related charges. Reportable segment information is as follows:



|                        |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|----------------------- |  | ------------------------------- | ------- | - | ------------------------------ | - | ------- | ---- |  | - | -------- | - |  | - | -------- | -
|                        |  | Three months endedSeptember 30, |         |   | Nine months endedSeptember 30, |  
|                        |  | 2005                            |         |   | 2004                           |   |         | 2005 |  |   | 2004     |  
|Revenues                |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|Americas                |  | $                               | 61,702  |   |                                | $ | 68,653  |      |  | $ | 203,901  |   |  | $ | 216,575  |  
|Europe                  |  |                                 | 54,583  |   |                                |   | 47,637  |      |  |   | 140,616  |   |  |   | 134,757  |  
|Japan                   |  |                                 | 22,989  |   |                                |   | 31,337  |      |  |   | 79,074   |   |  |   | 98,490   |  
|Pacific Rim             |  |                                 | 25,535  |   |                                |   | 14,333  |      |  |   | 60,388   |   |  |   | 46,185   |  
|                        |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|Total                   |  | $                               | 164,809 |   |                                | $ | 161,960 |      |  | $ | 483,979  |   |  | $ | 496,007  |  
|                        |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|Operating income (loss) |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|Americas                |  | $                               | 30,604  |   |                                | $ | 30,339  |      |  | $ | 105,995  |   |  | $ | 113,100  |  
|Europe                  |  |                                 | 33,066  |   |                                |   | 26,814  |      |  |   | 72,511   |   |  |   | 69,740   |  
|Japan                   |  |                                 | 13,288  |   |                                |   | 20,544  |      |  |   | 48,405   |   |  |   | 67,226   |  
|Pacific Rim             |  |                                 | 20,015  |   |                                |   | 10,108  |      |  |   | 45,110   |   |  |   | 33,110   |  
|Corporate               |  |                                 | (95,187 | ) |                                |   | (92,579 | )    |  |   | (289,571 | ) |  |   | (274,793 | )
|                        |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  
|Total                   |  | $                               | 1,786   |   |                                | $ | (4,774  | )    |  | $ | (17,550  | ) |  | $ | 8,383    |  
|                        |  |                                 |         |   |                                |   |         |      |  |   |          |   |  |   |          |  



The Company
segregates revenue into three categories of similar products and services. These categories include integrated circuit design, systems design and professional services. The integrated circuit design and systems design categories include both product
and support revenues. Revenue information is as follows:



|                          |  |                                 |         |                                |   |         |  |      |         |  |   |        
|------------------------- |  | ------------------------------- | ------- | ------------------------------ | - | ------- |  | ---- | ------- |  | - | -------
|                          |  | Three months endedSeptember 30, |         | Nine months endedSeptember 30,
|                          |  | 2005                            |         | 2004                           |   | 2005    |  | 2004
|Revenues                  |  |                                 |         |                                |   |         |  |      |         |  |   |        
|Integrated Circuit Design |  | $                               | 116,789 |                                | $ | 108,340 |  | $    | 333,535 |  | $ | 340,328
|Systems Design            |  |                                 | 41,779  |                                |   | 47,120  |  |      | 129,437 |  |   | 135,695
|Professional Services     |  |                                 | 6,241   |                                |   | 6,500   |  |      | 21,007  |  |   | 19,984 
|                          |  |                                 |         |                                |   |         |  |      |         |  |   |        
|Total                     |  | $                               | 164,809 |                                | $ | 161,960 |  | $    | 483,979 |  | $ | 496,007
|                          |  |                                 |         |                                |   |         |  |      |         |  |   |        



|(16) | Recent Accounting Pronouncements In November 2004, the Financial Accounting Standards Board (FASB) issued SFAS No. 151, Inventory Costs  An
Amendment of ARB No. 43, Chapter 4. SFAS No. 151 clarifies the accounting for abnormal amounts of idle facility expense, freight, handling costs and wasted material and requires that such items be recognized as current-period
charges. Additionally, SFAS No. 151 requires the allocation of fixed production overheads to inventory based on the normal capacity of the production facilities. Unallocated overheads must be recognized as an expense in the period incurred.
SFAS No. 151 is effective for inventory costs incurred during fiscal years beginning after June 15, 2005. The adoption of SFAS No. 151 is not expected to have a material impact on the Companys financial position or results of
operations.
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



In December 2004, the FASB issued
FASB Staff Position (FSP) No. 109-2, Accounting and Disclosure Guidance for the Foreign Earnings Repatriation Provision within the American Jobs Creation Act of 2004. FSP No. 109-2 provides guidance under SFAS No. 109,
Accounting for Income Taxes, with respect to recording the potential impact of the repatriation provisions of the American Jobs Creation Act of 2004 (the



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Jobs Act) on enterprises income tax expense and deferred tax liability. The Jobs Act was enacted on October 22, 2004. FSP No. 109-2 states
that an enterprise is allowed time beyond the financial reporting period of enactment to evaluate the effect of the Jobs Act on its plan for reinvestment or repatriation of foreign earnings for purposes of applying SFAS No. 109. The
Company has not yet completed its evaluation of the impact of the repatriation provisions. Accordingly, as provided for in FSP No. 109-2, the Company has not adjusted its tax expense or deferred tax liability to reflect the
repatriation provisions of the Jobs Act.



In December 2004,
the FASB issued SFAS No. 123 (revised 2004), Share-Based Payment (SFAS No. 123R), which replaces SFAS No. 123, Accounting for Stock-Based Compensation, and supercedes APB Opinion No. 25, Accounting
for Stock Issued to Employees. SFAS No. 123R requires all share-based payments to employees, including grants of employee stock options, to be recognized in the financial statements based on their fair values beginning with the first
interim or annual period after June 15, 2005, with early adoption encouraged. In April 2005, the Securities and Exchange Commission announced the adoption of a rule that defers the required effective date for registrants to the beginning of the
first fiscal year beginning after June 15, 2005. Therefore, the Company is required to adopt FAS 123R beginning January 1, 2006. The pro forma disclosures previously permitted under SFAS No. 123 will no longer be an alternative to
financial statement recognition. Under SFAS No. 123R, the Company must determine the appropriate fair value model to be used for valuing share-based payments, the amortization method for compensation cost and the transition method to be used at
the date of adoption. The Company is evaluating the requirements of SFAS No. 123R and expects that the adoption of SFAS No. 123R will have a material impact on the Companys results of operations. The Company has not yet determined
the method of adoption or the effect of adopting SFAS No. 123R, and it has not determined whether adoption will result in amounts that are similar to the current pro forma disclosures under SFAS No. 123.



In May 2005, the FASB issued SFAS No. 154, Accounting Changes and
Error Corrections which replaces APB No. 20, Accounting Changes, and SFAS No. 3, Reporting Changes in Interim Financial Statements. SFAS No. 154 requires a voluntary change in accounting principle be
applied retrospectively to all prior period financial statements presented, unless it is impracticable to determine the period specific effects of the change. SFAS No. 154 also requires that a change in method of depreciation, amortization, or
depletion for long-lived, nonfinancial assets be accounted for as a change in accounting estimate effected by a change in accounting principle. SFAS No. 154 is effective for accounting changes and corrections of errors made in fiscal years
beginning after December 15, 2005. The adoption of SFAS No. 154 is not expected to have a material impact on the Companys financial position or results of operations.



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|Item 2. | Managements Discussion and Analysis of Results of Operations and Financial Condition
|------- | -------------------------------------------------------------------------------------



(All numerical references in thousands, except for percentages and per share data)



OVERVIEW



The Company



The Company is a supplier of electronic design automation (EDA) systems  advanced computer software, emulation hardware systems and intellectual property designs
and databases used to automate the design, analysis and testing of electronic hardware and embedded systems software in electronic systems and components. The Company markets its products and services worldwide, primarily to large companies in the
military/aerospace, communications, computer, consumer electronics, semiconductor, networking, multimedia and transportation industries. Through the diversification of the Companys customer base among these various customer markets, the
Company attempts to reduce its exposure to fluctuations within each market. The Company sells and licenses its products through its direct sales force and a channel of distributors and sales representatives. In addition to its corporate offices in
Wilsonville, Oregon, the Company has sales, support, software development and professional service offices worldwide.



Business Environment



Business at the end of 2004 was strong and broad based with system and software bookings and backlog up significantly in 2004 compared to the prior year. Bookings are the
value of orders during a period for which revenue has been or will be recognized within six months for products and within twelve months for professional services and training. Backlog consists of bookings for which revenue has not been recognized
as of the balance sheet date because one or more of the revenue recognition criteria have not been met. During the three months ended September 30, 2005, the Company experienced a 2% increase in system and software revenues year over year. This
increase followed two consecutive quarters with year over year declines. In addition to a return of bookings strength, the Company continued to experience strength in areas of average deal size and number of transactions for the three months ended
September 30, 2005. The largest ten transactions for the quarter accounted for approximately 46% of total system and software bookings as compared to 39% in the second quarter. The number of new customers during the three months ended
September 30, 2005 returned to historical levels, approximately flat with levels experienced during the comparable period of 2004. Backlog increased during the three months ended September 30, 2005 while backlog decreased over the
comparable period in the prior year.



After a significant year over year
bookings decline in the first six months of 2005, the Calibre family of products had a strong third quarter. With 91% bookings growth in third quarter 2005 over the comparable period of 2004, the Calibre products made up the deficit from first and
second quarter and now show cumulative growth for the nine months ended September 30, 2005. Despite the decline in bookings in the first six months of 2005, the Company continues to be confident in the long-term health of this product line.
With strong third quarter bookings performance, the Company continues to believe that Calibre will experience year over year growth for the full year 2005 as a result of high levels of product introductions and benchmarking activities, in addition
to a large portfolio of expiring term deals with upfront revenue recognition available for renewal in the last three months of 2005. The Company does not believe the weakness Calibre experienced in first half of 2005 indicates a future trend.



The Company will continue its strategy of developing best in class point tools
with number one market share potential. This strategy creates a diversified product portfolio for the Company that solves customers critical design problems. The Companys management believes that this product strategy, in conjunction
with a customer diversification strategy, has helped reduce the impact of marketplace fluctuations in the past and should continue to do so in the future.



License Model Mix



License model trends can have a material impact on various aspects of the Companys business. See Critical Accounting Estimates  Revenue
Recognition on page 21 for a description of the types of product licenses sold by the Company. As the mix among perpetual licenses, fixed term licenses (term) with upfront revenue recognition and term licenses with ratable revenue recognition
(which includes due and payable revenue recognition) shifts, revenues, earnings, cash flow and days sales outstanding (DSO) are either positively or negatively affected. The year ended December 31, 2004 marked the fourth consecutive year in
which, as a percentage of product revenue, term revenue increased while perpetual revenue decreased. The Company believes this trend will continue in 2005.



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This trend was primarily the result of two factors. First, the Companys customers are moving toward the term license model, which provides the customer
with greater flexibility for product usage, including the option to share the products between multiple locations and reconfigure consumption at regular intervals from a fixed product list. As such, some of the Companys customers have
converted their existing installed base from perpetual to term licenses. Second, the weakness in the high-technology economy has disproportionately impacted the Companys smaller customers. Historically these customers have purchased under the
perpetual license model.



Under this ongoing shift from perpetual licenses to
term licenses with upfront revenue recognition, which the Companys management views as a positive trend, the Company expects no measurable impact to earnings, but a negative impact on cash flow and DSO. As customers move away from perpetual
licenses and into term licenses, the renewability and repeatability of the Companys business is increased. This provides opportunity for increased distribution of young products earlier in their lifecycles. While this shift in license models
may continue, the rate of movement from perpetual licenses to term licenses is expected to decrease.



Product Developments



During
2005, the Company continued to execute its strategy of focusing on new customer problem areas, as well as building upon its well-established product families. The Companys management believes that customers, faced with leading-edge design
challenges, choose the best products in each category to build their design environment. Through both internal development and strategic acquisitions, the Company has focused on areas where it believes it can build a leading market position, or
extend an existing leading market position.



During the nine months ended
September 30, 2005, the Company launched its constraint editor system (CES) into its Expedition Series and Board Station® RE PCB design flows. Providing a centralized constraint editor simplifies the task of managing constraints that previously had to be entered into
individual tools in the flow separately. Also during the nine months ended September 30, 2005, the Company launched Questa. The Questa verification products extend Mentors functional verification solution by offering a single
product with built-in support for testbench automation, coverage-driven verification (CDV), assertion-based verification (ABV), and transaction-level modeling (TLM). These new methodologies enhance traditional simulation technology to
achieve faster and more complete verification of systems. During the three months ended September 30, 2005, the Company launched a new version of its Capital Harness System product suite. The product is used by engineers to design the
electrical interconnect systems typically found on transportation platforms like automobiles.



The Companys management believes that the development and commercialization of EDA software tools is usually a multi-year process with limited customer adoption in the first years of tool availability. Once
tools are adopted, however, their life spans tend to be long and healthy. The Companys management believes that the Companys relatively young and diverse product lines are positioned for growth over the long-term.



Q3 2005 Financial Performance



| |  |  | Total revenues were $164,809 and $483,979 for the three and nine months ended September 30, 2005, respectively, a 2% increase and 2% decrease over the comparable periods of
2004, respectively. For the three month period, the increase resulted from strength in IC Design to Silicon and New and Emerging Markets, partially offset by weakness in Integrated System Design and Scalable Verification. Revenue strength in IC
Design to Silicon was broad led by Calibre RET (Resolution Enhancement Technology). Revenue strength in New and Emerging Markets came from the Companys TestKompress, Automotive and Catapult C product lines. For the nine month period, the
decline was primarily due to weakness in Scalable Verification and Integrated Systems Design. Revenue weakness in Scalable Verification was concentrated in the ModelSim and emulation product lines, while weakness in Integrated Systems Design was
primarily concentrated in the Companys Board Station product line. This decline was partially offset by strength in IC Design to Silicon, New and Emerging Markets, and Service and Support. Revenue strength in IC Design to Silicon was primarily
attributable to shipments of the Calibre RET (Resolution Enhancement Technology) and Interactive Verification product lines, while New and Emerging Markets strength came from the Companys TestKompress, Automotive and Catapult C product lines.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | System and software revenues were $91,492 and $264,427 for the three and nine months ended September 30, 2005, respectively, a 2% increase and 6% decrease from
system and software revenues for the comparable periods of 2004. Product revenue split by license model for the third quarter of 2005 was 51% term with upfront revenue recognition, 33% perpetual and 16% term with ratable revenue recognition
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | (which includes due and payable revenue recognition), compared to third quarter 2004 product revenue splits of 47% term with upfront revenue recognition, 34%
perpetual and 19% term with ratable revenue recognition.
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Service and support revenues were $73,317 and $219,552 for the three and nine months ended September 30, 2005, respectively, a 2% and 3% increase over the comparable periods of
2004, respectively, primarily due to the strengthening of certain foreign currencies and the growth in the Companys installed base of customers under support contracts.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | By geography, revenues in the Americas decreased 10% and 6%, respectively, for the three and nine months ended September 30, 2005 as compared to the comparable periods of 2004.
Revenues increased 15% and 4% in Europe as compared to the comparable periods of 2004, decreased 27% and 20%, respectively, over the first three and nine months of 2005 in Japan as compared to 2004, and increased 78% and 31%, respectively, in
Pacific Rim for the three and nine months ended September 30, 2005 from the comparable periods of 2004. The Americas contributed the largest share of revenues at nearly 37% and 42%, respectively, for the three and nine months ended
September 30, 2005, compared to 42% and 44%, respectively, for the three and nine months ended September 30, 2004.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Net income for the three months ended September 30, 2005 was $159 and net loss for the nine months ended September 30, 2005 was $11,070, compared to net loss of $5,746 and
$36,364 for the comparable periods of 2004. Improvement for the third quarter earnings resulted from higher revenue and lower operating expenses. Improvement in earnings for the nine months ended September 30 resulted from the absence of a
large tax expense recorded in 2004 on an inter-company dividend, offset by lower revenue and higher operating expenses.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Trade accounts receivable, net decreased to $208,512 at September 30, 2005, down 14% from $242,690 at the end of 2004. Average days sales outstanding increased to 114 days at
September 30, 2005 from 102 days at the end of 2004.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Cash generated from operating activities was $26,618 for the nine months ended September 30, 2005 compared to $37,161 for the comparable period in 2004. At September 30,
2005, cash, cash equivalents and short-term investments were $102,098, up 8% from $94,287 at December 31, 2004.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



CRITICAL ACCOUNTING ESTIMATES



The Companys discussion and analysis of its financial condition and results of operations are based upon the Companys consolidated financial statements, which
have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities and
contingencies as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The Company evaluates its estimates on an on-going basis. The Company bases its estimates on historical
experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from
other sources. Actual results may differ from these estimates under different assumptions or conditions. The Company believes the following are the critical accounting estimates and judgments used in the preparation of its consolidated financial
statements.



Revenue Recognition



The Company reports revenue in two categories based upon how the revenue is generated:
(i) system and software and (ii) service and support.



System and
software revenues  The Company derives system and software revenues from the sale of licenses of software products and emulation hardware systems.



The Company licenses software using two different license types:



1. Term licenses are for a specified time period, typically three years with payments spread over the license term, and do not provide the customer with the right to use
the product after the end of the term. The Company generally recognizes product revenue from term installment license agreements upon shipment and start of the license term. The Company uses these agreements as a standard business practice and has a
history of successfully collecting under the original payment terms without making concessions on payments, products or services. If the Company no longer had a history of collecting without providing concessions on term agreements, then revenue
would be required to be recognized as the payments become due and payable over the license term. This change would have



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a material impact on the Companys near-term results of operations. In a situation in which a risk of concession may exist on a term license agreement,
revenue is recognized on a due and payable basis, which is the lesser of the ratable portion of the entire fee or the customer installments as they become due and payable. In a term license agreement where the Company provides the customer with
rights to unspecified or unreleased future products, revenue is recognized ratably over the license term.



2. Perpetual licenses provide the customer with the right to use the product in perpetuity and typically do not provide for extended payment terms. The Company recognizes product revenue from perpetual license
agreements upon delivery to the customer when the likelihood of product return is remote. If the agreement provides for customer payment terms that are different than the standard payment terms in the customers jurisdiction, product revenue is
recognized as payments become due and payable.



Service and support
revenues - Service and support revenues consist of revenues from software and hardware maintenance services, term license installment agreements and professional services, which include consulting services, training services and other services.
The Company records service revenue as the services are provided to the customer. Support revenue is recognized over the support term. For multi-element arrangements that include support, support is allocated based on vendor specific objective
evidence (VSOE) of the fair value of support. For term licenses, VSOE is established by the price charged when such support is offered as optional during the license term. For perpetual licenses, VSOE is established by the price charged when such
support is sold separately.



The Company determines whether software product
revenue recognition is appropriate based upon the evaluation of whether the following four criteria have been met:



| | 1. | Persuasive evidence of an arrangement exists  An agreement signed by the customer and the Company.
| | -- | ---------------------------------------------------------------------------------------------------



| | 2. | Delivery has occurred  The software has been shipped, the customer is in possession of the software or the software has been made available to the customer through electronic
delivery.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | 3. | Fee is fixed or determinable  The amount of the fee and the due date have been fixed at execution of the arrangement without the possibility of future adjustments or
concessions.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | 4. | Collectibility is probable  The customer is expected to pay for products or services without the Company providing future concessions to the customer.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------



Valuation of Trade Accounts Receivable



The Company maintains allowances for doubtful accounts on trade accounts receivable and
term receivables, long-term for estimated losses resulting from the inability of its customers to make required payments. The Company regularly evaluates the collectibility of its trade accounts receivable based on a combination of factors. When it
becomes aware of a specific customers inability to meet its financial obligations, such as in the case of bankruptcy or deterioration in the customers operating results or financial position, a specific reserve for bad debt is recorded
to reduce the related receivable to the amount believed to be collectible. The Company also records unspecified reserves for bad debt for all other customers based on a variety of factors including length of time the receivables are past due, the
financial health of the customers, the current business environment and historical experience. If circumstances related to specific customers change, estimates of the recoverability of receivables would be adjusted resulting in either additional
selling expense or a reduction in selling expense in the period such determination was made.



Valuation of Deferred Tax Assets



Deferred tax assets are recognized for deductible temporary differences, net operating loss carryforwards and credit carryforwards if it is more likely than not that the tax benefits will be realized. The Company has considered future
taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for valuation allowances. The Company has recorded a valuation allowance to reduce its deferred tax assets to the amount that is more likely than not to be
realized. In the event the Company was to determine that it would be able to realize its deferred tax assets in the future in excess of its net recorded amount, an adjustment to the deferred tax asset would increase either income or contributed
capital, or decrease goodwill, in the period such determination was made. Also, if the Company was to determine that it would not be able to realize all or part of its net deferred tax asset in the future, an adjustment to increase the valuation
allowance on such net deferred tax assets would be charged to expense in the period such determination was made.



Income Tax Reserves



The Company has reserves for taxes to address potential exposures involving tax positions that could be challenged by taxing authorities, even though the Company believes
that the positions taken on previously filed tax returns are



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appropriate. The tax reserves are reviewed as circumstances warrant and adjusted as events occur that affect the Companys potential liability for
additional taxes. The Company is subject to income taxes in the United States and in numerous foreign jurisdictions and in the ordinary course of business, there are many transactions and calculations where the ultimate tax determination is
uncertain.



Goodwill, Intangible Assets and Long-Lived Assets



The Company reviews long-lived assets and the related intangible
assets for impairment whenever events or changes in circumstances indicate the carrying amount of such assets may not be recoverable. Recoverability of an asset is determined by comparing its carrying amount, including any associated intangible
assets, to the forecasted undiscounted net cash flows of the operation to which the asset relates. If the operation is determined to be unable to recover the carrying amount of its assets, then intangible assets are written down first, followed by
the other long-lived assets of the operation, to fair value. Fair value is determined based on discounted cash flows or appraised values, depending upon the nature of the assets. Goodwill and intangible assets with indefinite lives are tested for
impairment annually and whenever there is an impairment indicator using a fair value approach. In the event that, in the future, it is determined that the Companys goodwill, intangible or other long-lived assets have been impaired, an
adjustment would be made that would result in a charge for the write-down in the period that determination was made.



Inventory



The Company purchases and commits to purchase inventory based upon forecasted shipments of its emulation hardware systems. The Company evaluates, on a quarterly basis, the need for inventory reserves based on
projections of systems expected to ship within six months. Reserves for excess and obsolete inventory are established to account for the differences between forecasted shipments and the amount of purchased and committed inventory. The Company also
has emulation hardware system demonstration and loan equipment at customer locations in anticipation of securing sales. The cost of the emulation hardware system demonstration and loan equipment is amortized to selling expense using a six month
useful life.



Restructuring Charges



The Company has recorded restructuring charges in connection with its plans to better align
the cost structure with projected operations in the future. Effective January 1, 2003, in accordance with Statement of Financial Accounting Standards (SFAS) No. 146, Accounting for Costs Associated with Exit or Disposal
Activities, the Company records liabilities for costs associated with exit or disposal activities when the liability is incurred. Prior to January 1, 2003, in accordance with Emerging Issues Task Force (EITF) No. 94-3, the Company
accrued for restructuring costs when management made a commitment to an exit plan that specifically identified all significant actions to be taken.



The Company has recorded restructuring charges in connection with employee rebalances based on estimates of the expected costs associated with severance benefits. If the
actual cost incurred exceeds the estimated cost, additional special charges will be recognized. If the actual cost is less than the estimated cost, a benefit to special charges will be recognized.



The Company has also recorded restructuring charges in connection with excess leased
facilities to offset future rent, net of estimated sublease income that could be reasonably obtained, of the abandoned office space and to write off leasehold improvements on abandoned office space. The Company works with external real estate
experts in each of the markets where properties are located to obtain assumptions used to determine the best estimate of the net loss. The Companys estimates of expected sublease income could change based on factors that affect the
Companys ability to sublease those facilities such as general economic conditions and the real estate market. If the real estate markets worsen and the Company is not able to sublease the properties as expected, additional adjustments may be
required, which would result in additional special charges in the period such determination was made. Likewise, if the real estate market strengthens and the Company is able to sublease the properties earlier or at more favorable rates than
projected, a benefit to special charges will be recognized.



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RESULTS OF OPERATIONS



REVENUES AND GROSS MARGINS



|                                         |  |      |         |   |        |    |    |      |   |         |  
|---------------------------------------- |  | ---- | ------- | - | ------ | -- | -- | ---- | - | ------- | -
|Three months ended September 30,         |  | 2005 |         |   | Change |    |    | 2004 |  
|System and software revenues             |  | $    | 91,492  |   |        | 2  | %  |      | $ | 89,933  |  
|System and software gross margin percent |  |      | 93      | % |        |    |    |      |   | 94      | %
|Service and support revenues             |  |      | 73,317  |   |        | 2  | %  |      |   | 72,027  |  
|Service and support gross margin percent |  |      | 73      | % |        |    |    |      |   | 72      | %
|                                         |  |      |         |   |        |    |    |      |   |         |  
|Total revenues                           |  | $    | 164,809 |   |        |    |    |      | $ | 161,960 |  
|                                         |  |      |         |   |        |    |    |      |   |         |  
|                                         |  |      |        
|Nine months ended September 30,          |  | 2005 |         |   | Change |    |    | 2004 |  
|System and software revenues             |  | $    | 264,427 |   |        | (6 | %) |      | $ | 282,545 |  
|System and software gross margin percent |  |      | 92      | % |        |    |    |      |   | 93      | %
|Service and support revenues             |  |      | 219,552 |   |        | 3  | %  |      |   | 213,462 |  
|Service and support gross margin percent |  |      | 73      | % |        |    |    |      |   | 72      | %
|                                         |  |      |         |   |        |    |    |      |   |         |  
|Total revenues                           |  | $    | 483,979 |   |        |    |    |      | $ | 496,007 |  
|                                         |  |      |         |   |        |    |    |      |   |         |  



System and Software



The Company derives system and software revenues from the sale of
licenses of software products and emulation hardware systems. The increase for the three months ended September 30, 2005 was due primarily to strength in IC Design to Silicon as well as improvement in New and Emerging Markets from the
Companys Automotive, Catapult C, and Design Data Management product lines, partially offset by weakness in the Scalable Verification and Integrated Systems Design areas. The decrease for the nine months ended September 30, 2005 was
primarily due to a decrease in Scalable Verification revenues concentrated in the ModelSim product line, driven largely by a very strong comparable period of 2004. The decrease in revenue was partially offset by a favorable impact of approximately
1% due to the strengthening of foreign currencies for the nine months ended September 30, 2005.



System and software gross margins were lower for the three and nine months ended September 30, 2005 compared to the comparable periods of 2004 primarily due to lower margin sales on older emulation hardware
products and an increase in emulation technology amortization. In addition, gross margin was impacted by write-downs of emulation hardware systems inventory of $313 and $2,049 for the three and nine months ended September 30, 2005,
respectively, compared to $442 and $2,035 for the comparable periods of 2004. These reserves reduce inventory to the amount that is expected to ship within six months on the assumption that any excess would be obsolete. Also, certain previously
reserved-for inventory of $937 and $3,927 was sold during the three and nine months ended September 30, 2005, respectively, compared to $1,057 and $3,631 for the comparable periods of 2004.



Amortization of purchased technology to system and software cost of revenues was $3,076 and
$8,489 for the three and nine months ended September 30, 2005, respectively, compared to $2,672 and $7,642 for the comparable periods of 2004. The increase in amortization of purchased technology was primarily due to acquisitions during the
first half of 2005 and the last half of 2004. Purchased technology costs are amortized over two to five years to system and software cost of revenues.



Service and Support



Service and support revenues consist of revenues from software and hardware maintenance services and professional services, which include consulting services, training
services and other services. The increase in service and support revenues for the three and nine months ended September 30, 2005 was primarily attributable to the growth in the installed base of customers under support contracts and
strengthening of foreign currencies.



Service and support gross margins
increased for the three and nine months ended September 30, 2005 compared to the same periods in 2004 due to the strengthening of foreign currencies offset by an increase in employee labor costs.



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Geographic Revenues Information



|            |  |                                  |         |                                 |     |    |      |   |         |  |        |         |  |      |    |  |   |        
|----------- |  | -------------------------------- | ------- | ------------------------------- | --- | -- | ---- | - | ------- |  | ------ | ------- |  | ---- | -- |  | - | -------
|            |  | Three months ended September 30, |         | Nine months ended September 30,
|            |  | 2005                             |         | Change                          |     |    | 2004 |   | 2005    |  | Change |         |  | 2004
|Americas    |  | $                                | 61,702  |                                 | (10 | %) |      | $ | 68,653  |  | $      | 203,901 |  | (6   | %) |  | $ | 216,575
|Europe      |  | $                                | 54,583  |                                 | 15  | %  |      | $ | 47,637  |  | $      | 140,616 |  | 4    | %  |  | $ | 134,757
|Japan       |  | $                                | 22,989  |                                 | (27 | %) |      | $ | 31,337  |  | $      | 79,074  |  | (20  | %) |  | $ | 98,490 
|Pacific Rim |  | $                                | 25,535  |                                 | 78  | %  |      | $ | 14,333  |  | $      | 60,388  |  | 31   | %  |  | $ | 46,185 
|            |  |                                  |         |                                 |     |    |      |   |         |  |        |         |  |      |    |  |   |        
|Total       |  | $                                | 164,809 |                                 | 2   | %  |      | $ | 161,960 |  | $      | 483,979 |  | (2   | %) |  | $ | 496,007
|            |  |                                  |         |                                 |     |    |      |   |         |  |        |         |  |      |    |  |   |        



Revenues in the Americas decreased for
the three and nine months ended September 30, 2005 as compared to the comparable periods of 2004 due to lower software product sales. Revenues outside the Americas represented 63% and 58% of total revenues for the three and nine months ended
September 30, 2005, compared to 58% and 56% for the comparable periods of 2004. Most large European revenue contracts are denominated and paid to the Company in the United States dollar. The effects of exchange rate differences from the
European currencies to the United States dollar positively impacted European revenues by approximately 1% for the nine months ended September 30, 2005. Exclusive of currency effects, the increase in revenues for the three and nine months ended
September 30, 2005 compared to the comparable periods of 2004 was primarily due to higher software product sales partially offset by lower emulation sales. The effects of exchange rate differences from the Japanese yen to the United States
dollar negatively impacted Japanese revenues by approximately 1% for the three months ended September 30, 2005 and positively impacted Japanese revenues by approximately 2% for the nine months ended September 30, 2005. Exclusive of
currency effects, the decrease in revenues for the three and nine months ended September 30, 2005 compared to the comparable periods of 2004 was due to a decline in software product sales. Revenues in the Pacific Rim increased for the three and
nine months ended September 30, 2005 as compared to the comparable periods of 2004 primarily due to higher software product revenues and an increase in support revenue. The Company believes that fluctuations in comparable periods from one year
to the next may be due to the size and timing of orders from a very limited number of large customers. Since the Company generates more than half of its revenues outside of the United States and expects this to continue in the future, revenue
results should continue to be impacted by the effects of future foreign currency fluctuations.



OPERATING EXPENSES



|                                       |  |                                  |        |                                 |        |      |    |      |   |        |  |        |         |  |      |    |  |   |        
|-------------------------------------- |  | -------------------------------- | ------ | ------------------------------- | ------ | ---- | -- | ---- | - | ------ |  | ------ | ------- |  | ---- | -- |  | - | -------
|                                       |  | Three months ended September 30, |        | Nine months ended September 30,
|                                       |  | 2005                             |        |                                 | Change |      |    | 2004 |   | 2005   |  | Change |         |  | 2004
|Research and development               |  | $                                | 51,563 |                                 |        | 1    | %  |      | $ | 50,990 |  | $      | 159,066 |  | 8    | %  |  | $ | 147,695
|Marketing and selling                  |  | $                                | 64,728 |                                 |        | 2    | %  |      | $ | 63,304 |  | $      | 197,627 |  | 3    | %  |  | $ | 191,055
|General and administration             |  | $                                | 19,883 |                                 |        | 10   | %  |      | $ | 18,120 |  | $      | 57,343  |  | 3    | %  |  | $ | 55,430 
|Amortization of intangible assets      |  | $                                | 1,059  |                                 |        | 16   | %  |      | $ | 916    |  | $      | 3,153   |  | 27   | %  |  | $ | 2,488  
|Special charges                        |  | $                                | (48    | )                               |        | (109 | %) |      | $ | 507    |  | $      | 2,529   |  | (42  | %) |  | $ | 4,370  
|Merger and acquisition related charges |  | $                                |       |                                 |        | (100 | %) |      | $ | 7,290  |  | $      | 750     |  | (90  | %) |  | $ | 7,650  



Research and Development



R&D costs increased for the three and nine months ended
September 30, 2005 over the comparable periods of 2004 primarily due to higher headcount in the following areas: (i) IC Design to Silicon, (ii) the Embedded Systems product line, and (iii) Scalable Verification, due to
acquisitions in the second quarter of 2005 and the third quarter of 2004. Additionally, the increase for the nine months ended September 30, 2005 was due to a $4,750 charge in the second quarter for a purchase of technology that had not reached
technological feasibility. This technology will be the basis for a new offering in the Calibre product family expected in 2006.



Marketing and Selling



Marketing and selling costs increased for the three and nine months ended September 30, 2005 over the comparable periods of 2004 primarily due to increased
headcount.



General and Administration



General and administration expenses increased for the three and nine months ended
September 30, 2005 over the comparable periods of 2004. A weaker United States dollar during 2005 increased general and administration



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expenses for the three and nine months ended September 30, 2005. In addition, total salaries and benefits increased for the three months ended
September 30, 2005 over the comparable period of 2004.



Amortization
of Intangible Assets



Amortization of intangible assets increased for
the three and nine months ended September 30, 2005 as compared to the comparable periods of 2004 due to acquisitions during the first half of 2005 and the last half of 2004.



Special Charges



For the nine months ended September 30, 2005, the Company recorded special charges of $2,529. These charges primarily consisted of costs incurred for employee
terminations.



The Company rebalanced its workforce by 68 employees during the
nine months ended September 30, 2005. The reduction impacted several employee groups. Employee severance costs of $2,763 included severance benefits, notice pay and outplacement services. The total rebalance charge represented the aggregate of
numerous unrelated rebalance plans, none of which was individually material to the Companys financial position or results of operations. Termination benefits were communicated to the affected employees prior to the end of the quarter in which
the charge was recorded. The majority of these costs were expended during the first nine months of 2005. There have been no significant modifications to the amount of these charges.



In addition, during the nine months ended September 30, 2005, the Company recorded a benefit to special charges of $550 due to the
reversal of previously recorded non-cancelable lease payments related to an abandoned facility in North America which has been sublet at a higher rate than the previously expected sublease income. Other costs of $316 include legal costs incurred to
sever any ongoing obligation related to a defined benefit pension plan acquired in connection with an acquisition in 1999, excess leased facility costs, and other costs incurred to restructure the organization.



For the nine months ended September 30, 2004, the Company recorded special charges of
$4,370. These charges primarily consisted of accruals for excess leased facilities and costs incurred for employee terminations.



Excess leased facility costs of $1,240 primarily consisted of adjustments to previously recorded non-cancelable lease payments for leases of facilities in North America
and Europe. These adjustments resulted from reductions to the estimated expected sublease income primarily due to the real estate markets in which these facilities are located remaining at depressed levels longer than originally anticipated.
Non-cancelable lease payments on these excess leased facilities should be expended over seven years. In addition, the Company recorded a $758 write-off of leasehold improvements for a facility in North America that was previously abandoned.



The Company rebalanced its workforce by 41 employees during the nine months
ended September 30, 2004. The reduction impacted several employee groups. Employee severance costs of $1,997 included severance benefits, notice pay and outplacement services. Termination benefits were communicated to the affected employees
prior to the end of the quarter in which the employees were terminated. The majority of these costs were expended during 2004. There have been no significant modifications to the amount of these charges.



Other costs in 2004 of $590 include costs incurred to restructure the organization other than
employee rebalances and excess leased facility costs. In addition, the Company reversed $215 of the remaining accrual related to the emulation litigation with Cadence Design Systems, Inc.



Merger and Acquisition Related Charges



In September 2005, the Company acquired Accelerated Technology (UK) Limited, a distributorship of Mentor Graphics products and
services. The total purchase price including acquisition costs was $905. The excess of tangible assets acquired over liabilities assumed was $613. The cost of the acquisition was allocated on the basis of the estimated fair value of assets acquired
and liabilities assumed. The preliminary purchase accounting allocations resulted in a value assigned to goodwill of $202 and other identified intangible assets of $90. The other identified intangible assets will be amortized to operating expenses
over three years. The results of operations are included in the Companys consolidated financial statements from the date of acquisition forward.



In May 2005, the Company acquired Volcano Communications Technologies AB (Volcano), a provider of network design tools, in-vehicle software and test and validation
products for the automotive industry. The acquisition was an investment aimed at expanding the Companys product offering within this specialized industry and driving revenue growth. The total purchase price including acquisition costs was
$23,155. In addition, the Company recorded severance costs related to Volcano employees of $84, which will result in cash expenditures within twelve



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months of the date of acquisition. Severance costs affected 5 employees who were terminated due to the overlap of employee skill sets as a result of the
acquisition. The excess of tangible assets acquired over liabilities assumed was $4,818. The cost of the acquisition was allocated on the basis of the estimated fair value of assets acquired and liabilities assumed. The purchase accounting
allocations resulted in a charge for in-process research and development (R&D) of $580, goodwill of $11,202, technology of $2,450, deferred tax asset of $1,512, and other identified intangible assets of $4,800, net of related deferred tax
liability of $2,030. The technology will be amortized to cost of revenues over four years and other identified intangible assets will be amortized to operating expenses over five years. Of the $4,800 of other identified intangible assets, $3,700
will be amortized to operating expenses over five years and $1,100 will be amortized to operating expenses over two years. The results of operations are included in the Companys consolidated financial statements from the date of acquisition
forward.



In June 2005, the Company purchased certain assets and assumed
certain liabilities from Aptix Corporation (Aptix), a provider of reconfigurable prototyping products. Aptix was in Chapter 11 bankruptcy at the time the purchase agreement was negotiated and closed. The purchase was an investment in a niche market
that complemented the more expensive emulation systems sold by the Company. The total purchase price including acquisition costs was $1,835. In addition, the Company recorded costs of vacating a leased facility of Aptix of $58. The excess of
tangible assets acquired over liabilities assumed was $92. The cost of the acquisition was allocated on the basis of the estimated fair value of assets acquired and liabilities assumed. The purchase accounting allocations resulted in a charge for
in-process R&D of $170, goodwill of $251, technology of $780 and other identified intangible assets of $600. The technology will be amortized to cost of revenues over two years, and other identified intangible assets will be amortized to
operating expenses over three years. The results of operations are included in the Companys consolidated financial statements from the date of acquisition forward.



Other Income, Net



Other income, net totaled $4,144 and $10,601 for the three and nine months ended September 30, 2005, respectively, compared to $2,479 and $5,699 for the comparable
periods in 2004. Other income, net includes interest income which was $3,089 and $8,950 for the three and nine months ended September 30, 2005, respectively, compared to $2,230 and $5,722 for the comparable periods of 2004. Interest income
includes income related to the Companys term license installment agreements of $2,000 and $5,976, for the three and nine months ended September 30, 2005, respectively, compared to $1,570 and $4,260 for the comparable periods of 2004. The
increase in interest income related to term license installment agreements is primarily attributable to the increase in average interest rates for the outstanding term agreements during the applicable periods. In addition, the Company recorded
income relating to time value of foreign currency contracts of $501 and $1,487 for the three and nine months ended September 30, 2005, respectively, compared to $352 and $737 for the comparable periods in 2004. Other income, net was impacted by
a foreign currency gain of $195 and $238 for the three and nine months ended September 30, 2005, respectively, compared to losses of $311 and $182 for the comparable periods of 2004. Other income, net was favorably impacted by (i) a net
gain on the sale of a building of $957 in March 2005, (ii) a gain in hedge ineffectiveness of $532 in September 2005, and (iii) a net gain on sale of investment of $469 for the three and nine months ended September 30, 2005 and $745
for the comparable periods of 2004.



Interest Expense



Interest expense was $5,461 and $16,130 for the three and nine months ended
September 30, 2005, respectively, compared to $4,755 and $13,781 for the comparable periods in 2004. Interest expense was primarily attributable to the Companys fixed rate convertible subordinated notes and floating rate debentures issued
in September 2002 and August 2003, respectively. In addition, the second quarter of 2005 includes $397 for the write-off of unamortized bank fees and other costs related to the Companys former revolving credit facility, which was replaced by a
new revolving credit facility in June 2005, as described in Note 4, Short-Term Borrowings, in Item 1, Financial Statements. The Company recorded interest expense relating to the time value of foreign currency contracts
of $405 and $968 for the three and nine months ended September 30, 2005, respectively, and $137 and $375 for the three and nine months ended September 30, 2004, respectively.



Provision for Income Taxes



The provision for income taxes was $310 for the three months ended September 30, 2005 and the benefit from income taxes was $12,009 for the nine months ended
September 30, 2005 compared to a benefit from income taxes of $1,304 for the three months ended September 30, 2004 and a provision for income taxes of $36,665 for the nine months ended September 30, 2004. Generally, the provision for
income taxes is the result of the mix of profits (losses) earned by the Company and its subsidiaries in tax jurisdictions with a broad range of income tax rates. On a quarterly basis, the Company evaluates its provision for income taxes based on its
projected results of operations for the full year and records an adjustment in the current quarter. Despite the net losses incurred in the first nine months of 2005, the Company is projecting pre-tax income for the year. Accordingly the Company
has applied the estimated



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annual effective tax rate to the pre-tax loss for the nine months ended September 30, 2005, resulting in a tax benefit for the nine months ended
September 30, 2005. The effective tax rate for the remainder of 2005 could change significantly if actual results are different than current outlook-based projections.



The Company has not provided for United States income taxes on the undistributed earnings of foreign subsidiaries because they are
considered permanently invested outside of the United States. If repatriated, some of these earnings would generate foreign tax credits, which may reduce the federal tax liability associated with any future foreign dividend.



On October 22, 2004, the President signed the American Jobs Creation Act of 2004 (the
Act). The Act creates a temporary incentive for United States corporations to repatriate accumulated income earned abroad by providing an 85 percent dividends received deduction for certain dividends from controlled foreign corporations.
To qualify for the incentive provided for under the Act, a qualifying dividend has to be repatriated by the Company on or before December 31, 2005. The deduction is subject to a number of limitations which may limit the amount of any
distribution eligible for the dividends received deduction made under the Act to an amount less than the total distribution. Recent guidance issued in connection with the Act removed many uncertainties with respect to how the limitations contained
in the Act would apply to the Company. In addition, in December 2004, the FASB issued FASB Staff Position (FSP) No. 109-2, Accounting and Disclosure Guidance for the foreign Repatriation within the American Jobs Creation Act of 2004 (FSP
109-2). FSP 109-2 provides guidance for recording the potential impact of the repatriation provisions of the Act on an entitys income tax expense and deferred tax liability. The Company has not yet decided on whether, and to what extent, it
might repatriate foreign earnings that have not yet been remitted to the United States. Accordingly, the Company has not adjusted its provision for income taxes or deferred tax liability to reflect the repatriation provisions of the Act. The Company
expects to be in a position to finalize its assessment by the end of 2005.



Under SFAS No. 109, Accounting for Income Taxes, deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted
tax rates and laws that will be in effect when the differences are expected to reverse. SFAS No. 109 provides for the recognition of deferred tax assets without a valuation allowance if realization of such assets is more likely than not. Based
on the weight of available evidence, the Company has provided a valuation allowance against certain deferred tax assets. A portion of the valuation allowance for deferred tax assets relates to the difference between financial and tax reporting of
employee stock option exercises, for which subsequently recognized tax benefits would be applied directly to increase contributed capital. A portion of the valuation allowance for deferred tax assets relates to certain of the tax attributes acquired
from IKOS Systems, Inc. and 0-In Design Automation, Inc., for which subsequently recognized tax benefits will be applied directly to reduce goodwill. The remainder of the valuation allowance was based on the historical earnings patterns within
individual taxing jurisdictions that make it uncertain that the Company will have sufficient income in the appropriate jurisdictions to realize the full value of the assets. The Company will continue to evaluate the realizability of the deferred tax
assets on a quarterly basis.



The Company has settled its U.S. federal income
tax obligation through 2001 and is currently under examination by the IRS for its 2002 and 2003 federal income tax returns. While it is often difficult to predict the final outcome or timing of resolution of any particular tax matter, the Company
believes its tax reserves are adequate to cover potential liabilities that could result from current and future examinations.



Effects of Foreign Currency Fluctuations



More than half of the Companys revenues and approximately one-third of its expenses were generated outside of the United States for the first nine months of 2005.
For 2005 and 2004, approximately one-fourth of European and all Japanese revenues were subject to exchange rate fluctuations as they were booked in local currencies. Most large European revenue contracts are denominated and paid to the Company in
the United States dollar while the Companys European expenses, including substantial research and development operations, are paid in local currencies causing a short position in the Euro and the British pound sterling. In addition, the
Company experiences greater inflows than outflows of Japanese yen as all Japanese-based customers contract and pay the Company in local currency. While these exposures are aggregated on a consolidated basis to take advantage of natural offsets,
substantial exposure remains. For exposures that are not offset, the Company enters into short-term foreign currency forward and option contracts to partially offset these anticipated exposures. The option contracts are generally entered into at
contract strike rates that are different than current market rates. As a result, any unfavorable currency movements below the strike rates will not be offset by the foreign currency option contract and could negatively affect operating results.
These contracts address anticipated future cash flows for periods up to one year and do not hedge 100% of the potential exposures related to these currencies. As a result, the effects of currency fluctuations could have a substantial effect on the
Companys overall results of operations.



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Foreign currency translation adjustment, a component of accumulated other comprehensive income reported in the
stockholders equity section of the consolidated balance sheets, decreased to $22,619 at September 30, 2005 from $30,762 at December 31, 2004. This reflects the decrease in the value of net assets denominated in foreign currencies as
a result of the strengthening of the United States dollar since year-end 2004.



LIQUIDITY AND CAPITAL RESOURCES



Cash, Cash
Equivalents and Short-Term Investments



Total cash, cash equivalents
and short-term investments at September 30, 2005 were $102,098 compared to $94,287 at December 31, 2004. Cash provided by operating activities was $26,618 for the nine months ended September 30, 2005 compared to $37,161 for the
comparable period in 2004.



The decrease in cash flows from operating
activities was primarily due to (i) a decrease in income (loss) before income taxes in the nine months ended September 30, 2005, (ii) a decrease in income taxes payable compared to an increase in the same period in 2004 and
(iii) a smaller increase in deferred revenue in the first nine months of 2005 compared to 2004. The decrease in cash flows from operating activities was partially offset by (i) a larger decrease in trade accounts receivable in the first
nine months of 2005 compared to 2004 and (ii) a decrease in term receivables in the first nine months of 2005 compared to an increase during the same period in 2004.



Cash used in investing activities, excluding short-term investments, was $30,707 for the nine months ended September 30, 2005, compared
to $27,461 for the comparable period in 2004. Cash used for investing activities for the nine months ended September 30, 2005 consisted of cash paid for the acquisition of businesses and equity interests of $23,648, including payments of
holdbacks and transaction costs related to prior-year acquisitions of $2,538, and capital expenditures of $17,259, partially offset by net proceeds of $9,731 from the sale of a property. Cash used for investing activities for the comparable period
in 2004 included cash paid for acquisition of businesses and equity interests of $8,039, capital expenditures of $16,833 and purchases of intangible assets of $3,334.



Cash provided by financing activities was $13,836 for the nine months ended September 30, 2005, compared to $20,015 for the comparable
period in 2004. The decrease of $6,179 in the nine months ended September 30, 2005 was primarily due to a reduction in short-term borrowings of $1,981 compared to proceeds from short-term borrowings of $2,391 for the comparable period in 2004.
Financing cash flows were positively impacted by proceeds from issuance of common stock upon exercise of stock options and employee stock plan purchases of $17,904 and $19,155 during the nine months ended September 30, 2005 and 2004,
respectively.



Trade Accounts Receivable, Net



Trade accounts receivable, net decreased to $208,512 at September 30, 2005 from
$242,690 at December 31, 2004. Excluding the current portion of term receivables of $129,367 and $125,832, average days sales outstanding were 43 days and 49 days at September 30, 2005 and December 31, 2004, respectively. Average days
sales outstanding in total accounts receivable increased to 114 days at September 30, 2005 from 102 days at December 31, 2004. The increase in days sales outstanding was primarily due to the decrease in revenue for the three months ended
September 30, 2005 as compared to the three months ended December 31, 2004. In the quarters where term contract revenue is recorded, only the first twelve months of the receivable is reflected in current trade accounts receivable. In the
following quarters, the amount due in the next twelve months is reflected in current trade accounts receivable without the corresponding revenue.



Prepaid Expenses and Other



Prepaid expenses and other increased to $26,966 at September 30, 2005 from $23,289 at December 31, 2004, primarily due to prepayments for income and consumption
taxes, employee benefits and sales commissions. The increase was partially offset by a decrease in the fair value of derivatives.



Term Receivables, Long-Term



Term receivables, long-term decreased to $117,408 at September 30, 2005 from $139,146 at December 31, 2004. The balances were attributable to multi-year,
multi-element term license sales agreements. Balances under term agreements that are due within one year are included in trade accounts receivable and balances that are due in more than one year are included in term receivables, long-term. The
Company uses term agreements as a standard business practice and has a history of successfully collecting under the original payment terms without making concessions on payments, products or services. The decrease from 2004 was due to
seasonally lower quarterly average term license revenue since the fourth quarter of 2004 whereby the scheduled run-off of long-term receivables was less than offset by new term license transactions.



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Property, Plant and Equipment, net



Property, plant and equipment, net decreased to $79,567 at September 30, 2005 from $91,224 at December 31, 2004. The decrease was
primarily due to the sale in March 2005 of a building the Company was no longer utilizing. The building and related assets had carrying value, net of accumulated depreciation, at the sale date of $8,774. The decrease was also due to depreciation of
property, plant and equipment, partially offset by normal quarterly capital purchases.



Accrued Payroll and Related Liabilities



Accrued
payroll and related liabilities decreased to $54,442 at September 30, 2005 from $81,709 at December 31, 2004. The decrease was primarily due to payments of the 2004 annual and fourth quarter incentive bonus compensation in the first
quarter of 2005, in addition to a decrease in accrued sales commissions as a result of a decrease in commissionable revenue in the first nine months of 2005.



Deferred Revenue



Deferred revenue consists primarily of prepaid annual software maintenance services. Deferred revenue increased to $106,599 at September 30, 2005 from $103,336 at December 31, 2004. The increase was
primarily due to annual support contract renewals offset by normal amortization of prepayments on existing contracts.



Capital Resources



Expenditures for property, plant and equipment increased to $17,259 for the nine months ended September 30, 2005 compared to $16,833 for the comparable period of
2004. Expenditures for property, plant and equipment in the nine months ended September 30, 2005 and 2004 did not include any individually significant projects. In the nine months ended September 30, 2005, the Company acquired
(i) Volcano, (ii) Aptix and (iii) Accelerated Technology (UK) Limited, which resulted in net cash payments of $19,904. Additionally, the Company paid $2,538 related to holdbacks and transaction costs on prior year acquisitions. In the
nine months ended September 30, 2004, the Company acquired (i) Project Technology Inc., (ii) a minority equity interest in M2000, a French company, (iii) the remaining 49% minority interest in MGK, (iv) 0-In Design
Automation Inc. and (v) the parallel and serial ATA IP business division of Palmchip Corporation, which resulted in net cash payments of $6,306. Additionally, the Company paid $1,733 related to holdbacks and transaction costs on prior year
acquisitions. The Company also paid $3,334 in the nine months ended September 30, 2004 related to purchases of technology from (i) Atair, (ii) LSI Logic, (iii) Analog Bits and (iv) Rox Software Technology.



In August 2003, the Company issued $110,000 of Floating Rate Convertible Subordinated
Debentures (Debentures) due 2023 in a private offering pursuant to SEC Rule. The Debentures have been registered with the SEC for resale under the Securities Act of 1933. Interest on the Debentures is payable quarterly in February, May, August and
November, at a variable interest rate equal to 3-month LIBOR plus 1.65%. The effective interest rate was 4.69% and 2.92% for the nine months ended September 30, 2005 and 2004, respectively. The Debentures are convertible, under certain
circumstances, into the Companys common stock at a conversion price of $23.40 per share, for a total of 4,700 shares. These circumstances generally include (a) the market price of the Companys common stock exceeding 120% of the
conversion price, (b) the market price of the Debentures declining to less than 98% of the value of the common stock into which the Debentures are convertible or (c) a call for redemption of the Debentures or certain other corporate
transactions. The conversion price may also be adjusted based on certain future transactions, such as stock splits or stock dividends. Some or all of the Debentures may be redeemed by the Company for cash on or after August 6, 2007. Some or all
of the Debentures may be redeemed at the option of the holder for cash on August 6, 2010, 2013 or 2018.



In June 2002, the Company issued $172,500 of 6 7/8% Convertible Subordinated Notes (Notes) due 2007 in a private offering pursuant to SEC Rule 144A. The Notes have been registered with the SEC for resale under the
Securities Act of 1933. The Company pays interest on the Notes semi-annually in June and December. The Notes are convertible into 7,370 shares of the Companys common stock at a conversion price of $23.27 per share for the Notes remaining
outstanding at September 30, 2005. The Company may redeem some or all of the Notes for cash. The Notes rank pari passu with the Debentures.



The Company may elect to purchase or otherwise retire some or all of its Notes or Debentures with cash, stock, or other assets from time to time in open market or
privately negotiated transactions, either directly or through intermediaries, or by tender offer when the Company believes that market conditions are favorable to do so. Such purchases may have a material effect on the Companys liquidity,
financial condition and results of operations.



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In June 2005, the Company entered into a syndicated, senior, unsecured revolving credit facility that replaced an
existing three-year revolving credit facility. Borrowings under the facility are permitted to a maximum of $120,000. This facility is a four-year revolving credit facility, which terminates on June 1, 2009. Under this facility, the Company has
the option to pay interest based on LIBOR with varying maturities which are commensurate with the borrowing period selected by the Company, plus a spread of between 1.0% and 1.6% or prime plus a spread of between 0.0% and 0.6%, based on a pricing
grid tied to a financial covenant. In addition, commitment fees are payable on the unused portion of the credit facility at rates between 0.25% and 0.35% based on a pricing grid tied to a financial covenant. The facility contains certain financial
and other covenants, including financial covenants requiring the maintenance of specified liquidity ratios, leverage ratios and minimum tangible net worth. The Company had no borrowings during 2005 and 2004 against this credit facility or against
the previous credit facility and had no balance outstanding at September 30, 2005 or December 31, 2004.



The Companys primary ongoing cash requirements will be for product development, operating activities, capital expenditures, debt service and acquisition
opportunities that may arise. The Companys primary sources of liquidity are cash generated from operations and borrowings under the revolving credit facility. The Company anticipates that current cash balances, anticipated cash flows from
operating activities, including the effects of financing customer term receivables, amounts available under existing credit facilities, or other available financing sources, such as the issuance of debt or equity securities, will be sufficient to
meet its working capital needs on a short-term and long-term basis. The Companys sources of liquidity could be adversely affected by a decrease in demand for the Companys products or a deterioration of the Companys financial
ratios.



Stock Repurchases



The board of directors has authorized the Company to repurchase shares in the open market.
There were no repurchases in the nine months ended September 30, 2005 and 2004. The Company considers market conditions, alternative uses of cash and balance sheet ratios when evaluating share repurchases.



Off-Balance Sheet Arrangements



The Company does not have off-balance sheet arrangements, financings or other relationships
with unconsolidated entities or other persons, also known as special purpose entities. In the ordinary course of business, the Company leases certain real properties, primarily field office facilities, and equipment.



In February 2004, the Company purchased a 10% interest in M2000, a French company. The
Company assessed its interest in this variable interest entity and concluded it should not consolidate that entity based on guidance included in FASB Interpretation No. 46R, Consolidation of Variable Interest Entities. Accordingly,
the Company has accounted for this variable interest entity pursuant to the cost method for investments in equity securities that do not have readily determinable fair values.



Outlook for 2005



Revenues for the fourth quarter of 2005 are expected to be approximately $216,000, while earnings per share for the same period is expected to be approximately $0.22.
Revenues for the year ended December 31, 2005 are expected to be approximately $700,000 and earnings per share is expected to be approximately $0.08.



FACTORS THAT MAY AFFECT FUTURE RESULTS AND FINANCIAL CONDITION



The forward-looking statements contained under Outlook for 2005 above and all other statements contained in this report that are not statements of historical
fact, including without limitation, statements containing the words believes, expects, projections and words of similar meaning, constitute forward-looking statements that involve a number of risks and
uncertainties that are difficult to predict. Moreover, from time to time, the Company may issue other forward-looking statements. Forward-looking statements regarding financial performance in future periods, including the statements above under
Outlook for 2005, do not reflect potential impacts of mergers or acquisitions or other significant transactions or events that have not been announced as of the time the statements are made. Actual outcomes and results may differ
materially from what is expressed or forecast in forward-looking statements. The Company disclaims any obligation to update forward-looking statements to reflect future events or revised expectations. The following discussion highlights factors that
could cause actual results to differ materially from the results expressed or implied by the Companys forward-looking statements. Forward-looking statements should be considered in light of these factors.



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Weakness in the United States and international economies may materially adversely impact the Company.



The United States and international economies can experience economic downturns, which may
have a material adverse affect on the Companys results of operations. Weakness in these economies may materially adversely impact the timing and receipt of orders for the Companys products and the Companys results of operations.
The recent recovery in the global economy has been modest and uneven. Revenue levels are dependent on the level of technology capital spending, which includes worldwide expenditures for EDA software, hardware and consulting services. In addition,
mergers and company restructurings in the worldwide electronics industry may materially adversely impact demand for the Companys products and services resulting in decreased or delayed capital spending patterns.



The Company is subject to the cyclical nature of the integrated circuit and electronics
systems industries and any future downturns may materially adversely impact the Company.



Purchases of the Companys products and services are highly dependent upon new design projects initiated by customers in the integrated circuit (IC) and electronics systems industries. These industries are highly
cyclical and are subject to constant and rapid technological change, rapid product obsolescence, price erosion, evolving standards, short product life cycles and wide fluctuations in product supply and demand. The IC and electronics systems
industries regularly experience significant downturns, often connected with, or in anticipation of, maturing product cycles within such companies and/or a decline in general economic conditions. These downturns cause diminished product demand,
production overcapacity, high inventory levels and accelerated erosion of average selling prices. During such downturns, the number of new design projects generally decreases, which can materially adversely impact demand for the Companys
products and services.



The Companys forecasts of its revenues and
earnings outlook may be inaccurate and could materially adversely impact the Companys business or its planned results of operations.



The Companys revenues, particularly its new software license revenues, are difficult to forecast. The Company uses a pipeline system, a common industry
practice, to forecast revenues and trends in its business. Sales personnel monitor the status of potential business and estimate when a customer will make a purchase decision, the dollar amount of the sale and the products or services to be sold.
These estimates are aggregated periodically to generate a sales pipeline. The Companys pipeline estimates may prove to be unreliable either in a particular quarter or over a longer period of time, in part because the conversion
rate of the pipeline into contracts can be very difficult to estimate and requires management judgment. A variation in the conversion rate could cause the Company to plan or budget incorrectly and materially adversely impact the Companys
business or its planned results of operations. In particular, a slowdown in customer spending or weak economic conditions generally can reduce the conversion rate in a particular quarter as purchasing decisions are delayed, reduced in amount or
cancelled. The conversion rate can also be affected by the tendency of some of the Companys customers to wait until the end of a quarter in the hope of obtaining more favorable terms.



Fluctuations in quarterly results of operations due to customer seasonal purchasing
patterns, the timing of significant orders and the mix of licenses used to sell the Companys products could materially adversely impact the Companys business and the market price of the Companys common stock.



The Company has experienced, and may continue to experience, varied quarterly operating
results. Various factors affect the Companys quarterly operating results and some of these are not within the Companys control, including customer demand, the timing of significant orders and the mix of licenses used to sell the
Companys products. The Company experiences seasonality in demand for its products, due to the purchasing cycles of its customers, with revenues in the fourth quarter generally being the highest. The Company receives a majority of its software
product revenues from current quarter order performance, of which a substantial amount is usually booked in the last few weeks of each quarter. A significant portion of the Companys revenues come from multi-million dollar contracts, the timing
of the completion of and the terms of delivery of which can have a material impact on revenue recognition for a given quarter. If the Company fails to receive expected orders, particularly large orders, the Companys revenues for that quarter
could be materially adversely impacted. In such an event, the Company could fail to meet investors expectations, which could have a material adverse impact on the Companys stock price.



The Companys revenues are also affected by the mix of licenses entered into where the
Company recognizes software product revenues as payments become due and payable or ratably over the license term as compared to revenues recognized at the beginning of the license term. The Company recognizes revenues ratably over the license term
when the customer is provided with rights to unspecified or unreleased future products. A shift in the license



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mix toward increased ratable or due and payable revenue recognition would result in increased deferral of software product revenues to future periods and
would decrease current revenues, possibly resulting in the Company not meeting near-term revenue expectations.



The gross margin on the Companys software products is greater than that for the Companys hardware products, software support and professional services. Therefore, the Companys gross margin may vary
as a result of the mix of products and services sold. Additionally, the gross margin on software products varies year to year depending on the amount of royalties due to third parties for the mix of products sold. The Company also has a significant
amount of fixed or relatively fixed costs, such as employee costs and purchased technology amortization, and costs which are committed in advance and can only be adjusted periodically. As a result, a small failure to reach planned revenues would
likely have a relativity large negative effect on resulting earnings. If anticipated revenues do not materialize as expected, the Companys gross margins and operating results would be materially adversely impacted.



Customer payment defaults could materially adversely impact the Company.



The Company uses fixed-term license agreements as a standard business practice with
customers the Company believes are credit-worthy. These multi-year, multi-element term license agreements are typically three years in length and have payments spread over the license term. The complexity of these agreements tends to increase the
risk associated with collectibility from customers that can arise for a variety of reasons including ability to pay, product dissatisfaction, disagreements and disputes. If the Company is unable to collect under any of these multi-million dollar
agreements, the Companys results of operations could be materially adversely impacted. The Company uses these fixed-term license agreements as a standard business practice and has a history of successfully collecting under the original payment
terms without making concessions on payments, products or services. If the Company no longer had a history of collecting without providing concessions on term agreements, then revenue would be required to be recognized as the payments become due and
payable over the license term. This change would have a material impact on the Companys results.



Accounting rules governing revenue recognition may change.



The accounting rules governing software revenue recognition have been subject to authoritative interpretations that have generally made it more difficult to recognize software product revenues at the beginning of the
license period. If this trend continues, new and revised standards and interpretations could materially adversely impact the Companys ability to meet revenue expectations.



Forecasting the Companys tax rates is complex and subject to uncertainty.



Forecasts of the Companys income tax position and resultant effective tax rate are
complex and subject to uncertainty as the Companys income tax position for each year combines: (a) the effects of a mix of profits (losses) earned by the Company and its subsidiaries in tax jurisdictions with a broad range of income tax
rates, (b) benefits from available deferred tax assets, (c) taxes, interest or penalties resulting from tax audits and (d) changes in tax laws or the interpretation of such tax laws. In order to forecast the Companys global tax
rate, pre-tax profits and losses by jurisdiction are estimated and tax expense by jurisdiction is calculated. If the mix of profits and losses or effective tax rates by jurisdiction are different than those estimates, the Companys actual tax
rate could be materially different than forecast.



New accounting standard
related to equity compensation will cause the Company to recognize an additional expense, which will result in a reduction in the Companys net income.



In December 2004, the FASB issued SFAS No. 123R, Share-Based Payment, which replaces SFAS No. 123 and supercedes APB Opinion No. 25,
relating to the accounting for equity-based compensation. This statement requires the Company to record a charge to compensation expense for stock option grants. The Company currently accounts for stock options under SFAS No. 123,
Accounting for Stock-Based Compensation. As permitted by SFAS No. 123, the Company has elected to use the intrinsic value method prescribed by Accounting Principles Board Opinion (APB) No. 25, Accounting for Stock Issued
to Employees, to measure compensation expense for stock-based awards granted to employees, under which the granting of stock options is not considered compensation if the option exercise price is not less than the fair market value of the
common stock at the grant date. Starting in January 2006, the FASBs statement will require that stock-based awards be accounted for using a fair-value based method, which would require the Company to measure the compensation expense for all
such awards, including stock options, at fair-value at the grant date. The Company is evaluating the requirements of SFAS No. 123R and expects that the adoption will have a material adverse impact on the Companys net income.



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The Companys business is subject to evolving corporate governance and public disclosure regulations that have
increased both costs and the risk of noncompliance, which could have a material adverse impact on the Company.



Because the Companys common stock is publicly traded on the NASDAQ Stock Market, the Company is subject to rules and regulations promulgated by a number of
governmental and self-regulated organizations, including the SEC, NASDAQ and the Public Company Accounting Oversight Board, which monitors the accounting practices of public companies. Many of these regulations have only recently been enacted, and
continue to evolve, making compliance more difficult and uncertain. In particular, Section 404 of Sarbanes-Oxley Act of 2002 and related regulations have required the Company to include a management assessment of the Companys internal
controls over financial reporting and auditor attestation of that assessment in its annual reports. This effort has required, and continues to require, the commitment of significant financial and managerial resources. A failure to complete a
favorable assessment and obtain an auditors attestation could have a material adverse impact on the Company.



The outcome of Internal Revenue Service and other tax authorities examinations could have a material adverse affect on the Company.



The Internal Revenue Service and other tax authorities regularly examine the Companys
income tax returns. Significant judgment is required in determining the provision for income taxes. In determining the adequacy of income taxes, the Company assesses the likelihood of adverse outcomes resulting from the Internal Revenue Service and
other tax authorities examinations. The ultimate outcome of these examinations cannot be predicted with certainty. Should the Internal Revenue Service or other tax authorities assess additional taxes as a result of examinations, the Company
may be required to record charges to operations in future periods that could have a material impact on the results of operations, financial position or cash flows in the applicable period or periods recorded.



There are limitations on the effectiveness of controls.



The Company does not expect that its disclosure controls or internal control over financial
reporting will prevent all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control systems objectives will be met. Further, the design of a control
system must reflect the fact that there are resource constraints and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute
assurance that all control issues and instances of fraud, if any, within the Company have been detected. Failure of the Companys control systems to prevent error or fraud could materially adversely impact the Company.



The lengthy sales cycle for the Companys products and services and delay in customer
consummation of projects, make the timing of the Companys revenues difficult to predict.



The Company has a lengthy sales cycle that generally extends between three and six months. A lengthy customer evaluation and approval process is generally required due to the complexity and expense associated with the
Companys products and services. Consequently, the Company may incur substantial expenses and devote significant management effort and expense to develop potential relationships that do not result in agreements or revenues and may prevent the
Company from pursuing other opportunities. In addition, sales of the Companys products and services may be delayed if customers delay approval or commencement of projects due to customers budgetary constraints, internal acceptance review
procedures, timing of budget cycles or timing of competitive evaluation processes.



Any loss of the Companys leadership position in certain segments of the EDA market could have a material adverse affect on the Company.



The industry in which the Company competes is characterized by very strong leadership positions in specific segments of the EDA market. For example, one company may enjoy
a large percentage of sales in the physical verification segment of the market while another will have a similarly strong position in mixed-signal simulation. These strong leadership positions can be maintained for significant periods of time as the
software is difficult to master and customers are disinclined to make changes once their employees, as well as others in the industry, have developed familiarity with a particular software product. For these reasons, much of the Companys
profitability arises from niche areas in which it is the strong leader. Conversely, it is difficult for the Company to achieve significant profits in niche areas where other companies are the leaders. If for any reason the Company loses its
leadership position in a niche, the Company could be materially adversely impacted.



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The Company may not realize revenues as a result of its investments in research and development.



The Company incurs substantial expense to develop new software products. Research and
development activities are often performed over long periods of time. This effort may not yield a successful product offering or the product may not satisfy customer requirements. As a result, the Company would realize little or no revenues related
to its investment in research and development.



Intense competition in the
EDA industry could materially adversely impact the Company.



Competition in
the EDA industry is intense, which can lead to, among other things, price reductions, longer selling cycles, lower product margins, loss of market share and additional working capital requirements. If the Companys competitors offer significant
discounts on certain products, the Company may need to lower its prices or offer other favorable terms in order to compete successfully. Any such changes would likely reduce margins and could materially adversely impact the Companys operating
results. Any broad-based changes to the Companys prices and pricing policies could cause new software license and service revenues to decline or be delayed as the sales force implements and the Companys customers adjust to the new
pricing policies. Some of the Companys competitors may bundle software products for promotional purposes or as a long-term pricing strategy. These practices could significantly constrain prices the Company can charge for its products. The
Companys success depends upon the Companys ability to acquire or develop and market products and services that are innovative and cost-competitive and that meet customer expectations.



The Company currently competes primarily with two large companies: Cadence Design Systems,
Inc. and Synopsys, Inc. The Company competes with numerous smaller companies, a number of which have combined with other EDA companies. The Company also competes with manufacturers of electronic devices that have developed, or have the capability to
develop, their own EDA products internally.



The Company may acquire other
companies and may not successfully integrate them.



The industry in which
the Company competes has seen significant consolidation in recent years. During this period, the Company has acquired numerous businesses, is frequently in discussions with potential acquisition candidates and may acquire other businesses in the
future. While the Company expects to carefully analyze all potential transactions before committing to them, the Company cannot assure that any transaction that is completed will result in long-term benefits to the Company or its shareholders or
that the Companys management will be able to manage the acquired businesses effectively. In addition, growth through acquisition involves a number of risks. If any of the following events occurs after the Company acquires another business, it
could materially adversely impact the Company:



| |  |  | difficulties in combining previously separate businesses into a single unit;
| | - |  | ----------------------------------------------------------------------------



| |  |  | the substantial diversion of managements attention from day-to-day business when integrating the acquired business;
| | - |  | --------------------------------------------------------------------------------------------------------------------



| |  |  | the discovery after the acquisition has been completed of previously unknown liabilities assumed with the acquired business;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------



| |  |  | the failure to realize anticipated benefits, such as cost savings and increases in revenues;
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | the failure to retain key personnel of the acquired business;
| | - |  | -------------------------------------------------------------



| |  |  | difficulties related to assimilating the products of an acquired business in, for example, distribution, engineering and customer support areas;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | unanticipated costs;
| | - |  | --------------------



| |  |  | adverse impacts on existing relationships with suppliers and customers; and
| | - |  | ---------------------------------------------------------------------------



| |  |  | failure to understand and compete effectively in markets in which the Company has limited experience.
| | - |  | -----------------------------------------------------------------------------------------------------



Acquired businesses may not perform as projected, which could result in impairment of acquisition-related intangible assets. Additional
challenges include integration of sales channels, training and education of the sales force for new product offerings, integration of product development efforts, integration of systems of internal controls and integration of information systems.
Accordingly, in any acquisition there will be uncertainty as to the achievement and timing of projected synergies, cost savings and sales levels for acquired products. All of these factors can impair the Companys ability to forecast, meet
revenues and earnings targets and manage effectively the Companys business for long-term growth. The Company cannot assure that it can effectively meet these challenges.



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Risks of international operations and the effects of foreign currency fluctuations can materially adversely impact the
Companys business and operating results.



The Company realizes more
than half of its revenues from customers outside the United States and the Company generates approximately one-third of its expenses outside the United States. Significant changes in exchange rates can have an adverse impact on the Company. For
further discussion of foreign currency effects, see Effects of Foreign Currency Fluctuations discussion above. In addition, international operations subject the Company to other risks including longer receivables collection periods,
changes in a specific countrys or regions economic or political conditions, trade protection measures, import or export licensing requirements, loss or modification of exemptions for taxes and tariffs, limitations on repatriation of
earnings and difficulties with licensing and protecting the Companys intellectual property rights.



The delay in production of components or the ordering of excess components for the Companys emulation hardware products could materially adversely impact the Company.



The success of the Companys emulation division depends on the Companys ability to
procure hardware components on a timely basis from a limited number of suppliers, assemble and ship systems on a timely basis with appropriate quality control, develop distribution and shipment processes, manage inventory and related obsolescence
issues and develop processes to deliver customer support for hardware. The Companys inability to be successful in any of the foregoing could materially adversely impact the Company.



The Company commits to purchase component parts from suppliers based on sales forecasts of the Companys emulation products. If the
Company cannot change or be released from these non-cancelable purchase commitments, or if orders for the Companys products do not materialize as anticipated, the Company could incur significant costs related to the purchase of excess
components which could become obsolete before the Company can use them. Additionally, a delay in production of the components could materially adversely impact the Companys operating results.



The Companys failure to adequately protect the Companys proprietary rights or
to obtain software or other intellectual property licenses could materially adversely impact the Company.



The Companys success depends, in large part, upon the Companys proprietary technology. The Company generally relies on patents, copyrights, trademarks, trade secret laws, licenses and restrictive
agreements to establish and protect the Companys proprietary rights in technology and products. Despite precautions the Company may take to protect the Companys intellectual property, the Company cannot assure that third parties will not
try to challenge, invalidate or circumvent these protections. The companies in the EDA industry, as well as entities and persons outside the industry, are obtaining patents at a rapid rate. Many of these entities have substantially larger patent
portfolios than the Company. As a result, the Company may on occasion be forced to engage in costly patent litigation to protect the Companys rights or defend its customers rights. The Company may also need to settle these claims on
terms that are unfavorable; such settlements could result in the payment of significant damages or royalties, or force the Company to stop selling or redesign one or more products. The Company cannot assure that the rights granted under the
Companys patents will provide it with any competitive advantage, that patents will be issued on any of the Companys pending applications or that future patents will be sufficiently broad to protect the Companys technology.
Furthermore, the laws of foreign countries may not protect the Companys proprietary rights in those countries to the same extent as United States law protects these rights in the United States.



Some of the Companys products include software or other intellectual property licensed
from third parties, and the Company may have to seek new licenses or renew existing licenses for software and other intellectual property in the future. The Companys failure to obtain software or other intellectual property licenses or rights
on favorable terms could materially adversely impact the Company.



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Future litigation may materially adversely impact the Company.



Any future litigation may result in injunctions against future product sales and substantial
unanticipated legal costs and divert the efforts of management personnel, any and all of which could materially adversely impact the Company.



The Company may become subject to unfair hiring claims, which could prevent it from hiring needed employees, incur liability for damages or incur substantial
unanticipated legal costs.



Companies whose employees accept positions with
competitors frequently claim that these competitors have engaged in unfair hiring practices or that the employment of these persons would involve the disclosure or use of confidential information or trade secrets. These claims could prevent the
Company from hiring needed employees. They may result in the Company incurring liability for damages and/or substantial unanticipated legal costs. These claims also may divert the efforts of management personnel from the Companys operations.



Errors or defects in the Companys products and services could expose
the Company to liability and harm the Companys reputation.



The
Companys customers use the Companys products and services in designing and developing products that involve a high degree of technological complexity and have unique specifications. Due to the complexity of the systems and products with
which the Company works, some of the Companys products and designs can be adequately tested only when put to full use in the marketplace. As a result, the Companys customers or their end users may discover errors or defects in the
Companys software or the systems the Company designs, or the products or systems incorporating the Companys designs and intellectual property may not operate as expected. Errors or defects could result in:



| |  |  | loss of current customers and loss of, or delay in, revenue and loss of market share;
| | - |  | -------------------------------------------------------------------------------------



| |  |  | failure to attract new customers or achieve market acceptance;
| | - |  | --------------------------------------------------------------



| |  |  | diversion of development resources to resolve the problems resulting from errors or defects; and
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | increased service costs.
| | - |  | ------------------------



The Companys failure to attract and retain key employees may harm the Company.



The Company depends on the efforts and abilities of the Companys senior management, the Companys research and development staff and a number of other key
management, sales, support, technical and services personnel. Competition for experienced, high-quality personnel is intense, and the Company cannot assure that it can continue to recruit and retain such personnel. The failure by the Company to hire
and retain such personnel would impair the Companys ability to develop new products and manage the Companys business effectively.



Regulations adopted by the NASDAQ Stock Market require stockholder approval for new stock option plans and significant amendments to existing plans, including increasing
the number of options available for grant. These regulations could make it more difficult for the Company to grant equity compensation to employees in the future. To the extent that these regulations make it more difficult or expensive to grant
equity compensation to employees, the Company may incur increased compensation costs or find it difficult to attract and retain employees, which could materially adversely impact the Company.



Terrorist attacks and other acts of violence or war may materially adversely impact the
markets on which the Companys securities trade, the markets in which the Company operates, the Companys operations and the Companys profitability.



Terrorist attacks may negatively affect the Companys operations and investment in the Companys business. These attacks or armed
conflicts may directly impact the Companys physical facilities or those of the Companys suppliers or customers. Furthermore, these attacks may make travel more difficult and expensive and ultimately affect the Companys revenues.



Any armed conflict entered into by the United States could have an adverse
impact on the Companys revenues and the Companys ability to deliver products to the Companys customers. Political and economic instability in some regions of the world may also result from an armed conflict and could negatively
impact the Companys business. The Company currently has operations in Pakistan, Egypt and Israel, countries that may be particularly susceptible to



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this risk. The consequences of any armed conflict are unpredictable, and the Company may not be able to foresee events that could have an adverse impact on
the Company.



More generally, any of these events could cause consumer
confidence and spending to decrease or result in increased volatility in the United States and worldwide financial markets and economy. They also could result in economic recession in the United States or abroad. Any of these occurrences could have
a significant impact on the Companys operating results, revenues and costs and may result in volatility of the market price for the Companys common stock.



The Companys articles of incorporation, Oregon law and the Companys shareholder rights plan may have anti-takeover effects.



The Companys board of directors has the authority, without action by
the shareholders, to designate and issue up to 1,200,000 shares of incentive stock in one or more series and to designate the rights, preferences and privileges of each series without any further vote or action by the shareholders. Additionally, the
Oregon Control Share Act and the Business Combination Act limit the ability of parties who acquire a significant amount of voting stock to exercise control over the Company. These provisions may have the effect of lengthening the time required for a
person to acquire control of the Company through a proxy contest or the election of a majority of the board of directors. In February 1999, the Company adopted a shareholder rights plan, which has the effect of making it more difficult for a person
to acquire control of the Company in a transaction not approved by the Companys board of directors. The potential issuance of incentive stock, the provisions of the Oregon Control Share Act and the Business Combination Act and the
Companys shareholder rights plan may have the effect of delaying, deferring or preventing a change of control of the Company, may discourage bids for the Companys common stock at a premium over the market price of the Companys
common stock and may materially adversely impact the market price of, and the voting and other rights of the holders of, the Companys common stock.



The Companys debt obligations expose the Company to risks that could materially adversely impact the Companys business, operating results and financial
condition, and could prevent the Company from fulfilling its obligations under such indebtedness.



The Company has a substantial level of indebtedness. As of September 30, 2005, the Company had $289.8 million of outstanding indebtedness, which includes $171.5 million of 6 7/8% Convertible Subordinated Notes
(Notes) due 2007 and $110.0 million of Floating Rate Convertible Subordinated Debentures (Debentures) due 2023. This level of indebtedness among other things, could:



| |  |  | make it difficult for the Company to satisfy its payment obligations on its debt;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | make it difficult for the Company to incur additional indebtedness or obtain any necessary financing in the future for working capital, capital expenditures, debt service,
acquisitions or general corporate purposes;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | limit the Companys flexibility in planning for or reacting to changes in its business;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | reduce funds available for use in the Companys operations;
| | - |  | -----------------------------------------------------------



| |  |  | make the Company more vulnerable in the event of a downturn in its business;
| | - |  | ----------------------------------------------------------------------------



| |  |  | make the Company more vulnerable in the event of an increase in interest rates if the Company must incur new debt to satisfy its obligations under the Notes and Debentures; or
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | place the Company at a possible competitive disadvantage relative to less leveraged competitors and competitors that have greater access to capital resources.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------



If the Company experiences a decline in revenues due to any of
the factors described in this section entitled Factors That May Affect Future Results and Financial Condition, it could have difficulty paying amounts due on its indebtedness. Any default under the Companys indebtedness could have
a material adverse impact on its business, operating results and financial condition.



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|Item 3. | Quantitative And Qualitative Disclosures About Market Risk
|------- | ----------------------------------------------------------



(All numerical references in thousands, except for rates and percentages)



INTEREST RATE RISK



The Company is exposed to interest rate risk primarily through its investment portfolio, short-term borrowings and long-term notes payable. The Company does not use
derivative financial instruments for speculative or trading purposes.



The
Company places its investments in instruments that meet high credit quality standards, as specified in the Companys investment policy. The policy also limits the amount of credit exposure to any one issuer and type of instrument. The Company
does not expect any material loss with respect to its investment portfolio.



The table below presents the carrying value and related weighted-average fixed interest rates for the Companys investment portfolio. The carrying value approximates fair value at September 30, 2005. In accordance with the
Companys investment policy, all investments mature in twelve months or less.



|                                                                                            |  |                 |        |                           |      |  
|------------------------------------------------------------------------------------------- |  | --------------- | ------ | ------------------------- | ---- | -
|Principal (notional) amounts in United States dollars (In thousands, except interest rates) |  | Carrying Amount |        | AverageFixed InterestRate |     
|Cash equivalents  fixed rate                                                               |  | $               | 31,715 |                           | 3.68 | %
|Short-term investments  fixed rate                                                         |  |                 | 43,006 |                           | 3.67 | %
|                                                                                            |  |                 |        |                           |      |  
|Total fixed rate interest bearing instruments                                               |  | $               | 74,721 |                           | 3.67 | %
|                                                                                            |  |                 |        |                           |      |  



The Company had convertible
subordinated notes of $171,500 outstanding with a fixed interest rate of 6 7/8% at September 30, 2005. For fixed rate debt, interest rate changes affect the fair value of the notes but do not affect earnings or cash flow.



The Company had floating rate convertible subordinated debentures of $110,000 outstanding
with a variable interest rate of 3-month LIBOR plus 1.65% at September 30, 2005. For variable interest rate debt, interest rate changes affect earnings and cash flow. If the interest rates on the variable rate borrowings were to increase or
decrease by 1% for the year and the level of borrowings outstanding remained constant, annual interest expense would increase or decrease by approximately $1,100.



At September 30, 2005, the Company had a four-year revolving credit facility, which terminates on June 1, 2009, which allows the
Company to borrow up to $120,000. Under this facility, the Company has the option to pay interest based on LIBOR with varying maturities which are commensurate with the borrowing period selected by the Company, plus a spread of between 1.0% and 1.6%
or prime plus a spread of between 0.0% and 0.6%, based on a pricing grid tied to a financial covenant. As a result, the Companys interest expense associated with borrowings under this credit facility will vary with market interest rates. In
addition, commitment fees are payable on the unused portion of the credit facility at rates between 0.25% and 0.35% based on a pricing grid tied to a financial covenant. The facility contains certain financial and other covenants, including
financial covenants requiring the maintenance of specified liquidity ratios, leverage ratios and minimum tangible net worth. The Company had no short-term borrowings against the credit facility at September 30, 2005.



The Company had other long-term notes payable of $1,094 and short-term borrowings of $7,210
outstanding at September 30, 2005 with variable rates based on market indexes. For variable rate debt, interest rate changes generally do not affect the fair market value, but do affect future earnings or cash flow. If the interest rates on the
variable rate borrowings were to increase or decrease by 1% for the year and the level of borrowings outstanding remained constant, annual interest expense would increase or decrease by approximately $83.



FOREIGN CURRENCY RISK



The Company transacts business in various foreign currencies and has established a foreign
currency hedging program to hedge certain foreign currency forecasted transactions and exposures from existing assets and liabilities. Derivative instruments held by the Company consist of foreign currency forward and option contracts. The



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Company enters into contracts with counterparties who are major financial institutions and believes the risk related to default is remote. The Company does
not hold or issue derivative financial instruments for trading purposes.



The
Company enters into foreign currency option contracts for forecasted revenues and expenses between its foreign subsidiaries. These instruments provide the Company the right to sell/purchase foreign currencies to/from third parties at future dates
with fixed exchange rates. At September 30, 2005, the Company had options outstanding to sell Japanese yen with contract values totaling $45,987 at a weighted average contract rate of 112.53, to buy the Euro with contract values totaling
$30,456 at a weighted average contract rate of 1.26 and to buy the British pound with contract values totaling $12,500 at a weighted average contract rate of 1.85.



The Company enters into foreign currency forward contracts to protect against currency exchange risk associated with expected future cash
flows and existing assets and liabilities. The Companys practice is to hedge a majority of its existing material foreign currency transaction exposures.



The table provides information as of September 30, 2005 about the Companys foreign currency forward contracts. The information provided is in United States
dollar equivalent amounts. The table presents the notional amounts, at contract exchange rates, and the weighted average contractual foreign currency exchange rates. These contracts mature in 2005.



|                   |  |                 |         |                               |        |                   |    
|------------------ |  | --------------- | ------- | ----------------------------- | ------ | ----------------- | ---
|                   |  | Notional Amount |         | WeightedAverage Contract Rate |        | Contract Currency
|Forward Contracts: |  |                 |         |                               |        |                   |    
|Japanese Yen       |  | $               | 90,690  |                               | 109.43 |                   | JPY
|Euro               |  |                 | 63,503  |                               | 1.25   |                   | USD
|British Pound      |  |                 | 17,440  |                               | 1.78   |                   | USD
|Swedish Krona      |  |                 | 6,611   |                               | 7.51   |                   | SEK
|Indian Rupee       |  |                 | 6,268   |                               | 44.11  |                   | INR
|Canadian Dollar    |  |                 | 4,344   |                               | 1.18   |                   | CAD
|Other              |  |                 | 10,006  |                               |       |                   |    
|                   |  |                 |         |                               |        |                   |    
|Total              |  | $               | 198,862 |                               |        |                   |    
|                   |  |                 |         |                               |        |                   |    



|Item 4. | Controls and Procedures
|------- | -----------------------



(1) Evaluation of Disclosure Controls and Procedures



The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in the Companys Exchange Act reports
is recorded, processed, summarized and reported within the time periods specified in the SECs rules and forms, and that such information is accumulated and communicated to the Companys management, including its Chief Executive Officer
and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well
designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.



The Company carried out an evaluation, under the supervision and with the
participation of the Companys management, including the Companys Chief Executive Officer and the Companys Chief Financial Officer, of the effectiveness of the design and operation of the Companys disclosure controls and
procedures as of the end of the period covered by this report. Based on the foregoing, the Companys Chief Executive Officer and Chief Financial Officer concluded that the Companys disclosure controls and procedures were effective at the
reasonable assurance level as of the end of the period covered by this report.



(2) Changes in Internal Controls Over Financial Reporting



There has been no change in the Companys internal control over financial reporting that occurred during the last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Companys internal
control over financial reporting.



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PART II. OTHER INFORMATION



|Item 6. | Exhibits
|------- | --------



|     |  |                                                                                                                                                                                             
|---- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|31.1 |  | Certification of Chief Executive Officer of Registrant Pursuant to SEC Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                      
|     | 
|31.2 |  | Certification of Chief Financial Officer of Registrant Pursuant to SEC Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                      
|     | 
|32   |  | Certification of Chief Executive Officer and Chief Financial Officer of Registrant Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of
2002.



SIGNATURES



Pursuant to the requirements of the
Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.



|                        |  |  |  |                            
|----------------------- |  |  |  | ---------------------------
|Dated: November 8, 2005 |  |  |  | MENTOR GRAPHICS CORPORATION
|                        |  |  |  | (Registrant)               
|                        |  | 
|                        |  |  |  | /s/ Gregory K. Hinckley    
|                        |  |  |  | Gregory K. Hinckley        
|                        |  |  |  | President                  



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