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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549



Form 10-Q



---



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



For the Quarterly Period Ended March
31, 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



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 ̈



Number of
shares of common stock, no par value, outstanding as of April 29, 2005: 78,133,675



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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 March 31, 2005 and 2004 |  | 3          
|                                                                                                   | 
|Condensed Consolidated Balance Sheets as of March 31, 2005 and December 31, 2004                   |  | 4          
|                                                                                                   | 
|Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2005 and 2004 |  | 5          
|                                                                                                   | 
|Notes to Unaudited Condensed Consolidated Financial Statements                                     |  | 6          
|                                                                                                   | 
|Item 2. Management's Discussion and Analysis of Results of Operations and Financial Condition      |  | 15         
|                                                                                                   | 
|Item 3. Quantitative and Qualitative Disclosures About Market Risk                                 |  | 32         
|                                                                                                   | 
|Item 4. Controls and Procedures                                                                    |  | 33         
|                                                                                                   | 
|PART II OTHER INFORMATION                                                                          |  |            
|                                                                                                   | 
|Item 6. Exhibits                                                                                   |  | 35         
|                                                                                                   | 
|SIGNATURES                                                                                         |  | 35         



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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 March 31,                   |  | 2005 |         |   | 2004 |  
|In thousands, except per share data            |  |      |         |   |      |  
|Revenues:                                      |  |      |         |   |      |   |         |  
|System and software                            |  | $    | 91,560  |   |      | $ | 94,521  |  
|Service and support                            |  |      | 72,774  |   |      |   | 69,884  |  
|                                               |  |      |         |   |      |   |         |  
|Total revenues                                 |  |      | 164,334 |   |      |   | 164,405 |  
|                                               |  |      |         |   |      |   |         |  
|Cost of revenues:                              |  |      |         |   |      |   |         |  
|System and software                            |  |      | 4,735   |   |      |   | 4,562   |  
|Service and support                            |  |      | 19,908  |   |      |   | 20,095  |  
|Amortization of purchased technology           |  |      | 2,713   |   |      |   | 2,466   |  
|                                               |  |      |         |   |      |   |         |  
|Total cost of revenues                         |  |      | 27,356  |   |      |   | 27,123  |  
|                                               |  |      |         |   |      |   |         |  
|Gross margin                                   |  |      | 136,978 |   |      |   | 137,282 |  
|                                               |  |      |         |   |      |   |         |  
|Operating expenses:                            |  |      |         |   |      |   |         |  
|Research and development                       |  |      | 51,310  |   |      |   | 48,383  |  
|Marketing and selling                          |  |      | 67,575  |   |      |   | 63,706  |  
|General and administration                     |  |      | 18,708  |   |      |   | 18,562  |  
|Amortization of intangible assets              |  |      | 1,122   |   |      |   | 782     |  
|Special charges                                |  |      | 1,313   |   |      |   |        |  
|                                               |  |      |         |   |      |   |         |  
|Total operating expenses                       |  |      | 140,028 |   |      |   | 131,433 |  
|                                               |  |      |         |   |      |   |         |  
|Operating income (loss)                        |  |      | (3,050  | ) |      |   | 5,849   |  
|Other income, net                              |  |      | 3,615   |   |      |   | 1,230   |  
|Interest expense                               |  |      | (5,031  | ) |      |   | (4,455  | )
|                                               |  |      |         |   |      |   |         |  
|Income (loss) before income taxes              |  |      | (4,466  | ) |      |   | 2,624   |  
|Provision for (benefit from) income taxes      |  |      | (80     | ) |      |   | 446     |  
|                                               |  |      |         |   |      |   |         |  
|Net income (loss)                              |  | $    | (4,386  | ) |      | $ | 2,178   |  
|                                               |  |      |         |   |      |   |         |  
|Net income (loss) per share:                   |  |      |         |   |      |   |         |  
|Basic                                          |  | $    | (0.06   | ) |      | $ | 0.03    |  
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  | $    | (0.06   | ) |      | $ | 0.03    |  
|                                               |  |      |         |   |      |   |         |  
|Weighted average number of shares outstanding: |  |      |         |   |      |   |         |  
|Basic                                          |  |      | 78,007  |   |      |   | 69,803  |  
|                                               |  |      |         |   |      |   |         |  
|Diluted                                        |  |      | 78,007  |   |      |   | 72,763  |  
|                                               |  |      |         |   |      |   |         |  



See accompanying notes to unaudited
consolidated financial statements.



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Mentor Graphics Corporation

Condensed Consolidated Balance Sheets

(Unaudited)



|                                                                                                              |  |                      |           |   |                         |   |           |  
|------------------------------------------------------------------------------------------------------------- |  | -------------------- | --------- | - | ----------------------- | - | --------- | -
|In thousands                                                                                                  |  | As of March 31, 2005 |           |   | As of December 31, 2004 |  
|Assets                                                                                                        |  |                      |           |   |                         |   |           |  
|Current assets:                                                                                               |  |                      |           |   |                         |   |           |  
|Cash and cash equivalents                                                                                     |  | $                    | 73,363    |   |                         | $ | 67,916    |  
|Short-term investments                                                                                        |  |                      | 35,313    |   |                         |   | 26,371    |  
|Trade accounts receivable, net of allowance for doubtful accounts of $4,766 and $5,272, respectively          |  |                      | 228,811   |   |                         |   | 242,690   |  
|Inventory                                                                                                     |  |                      | 4,319     |   |                         |   | 5,168     |  
|Prepaid expenses and other                                                                                    |  |                      | 28,684    |   |                         |   | 23,289    |  
|Deferred income taxes                                                                                         |  |                      | 10,125    |   |                         |   | 10,298    |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total current assets                                                                                          |  |                      | 380,615   |   |                         |   | 375,732   |  
|Property, plant and equipment, net                                                                            |  |                      | 82,723    |   |                         |   | 91,224    |  
|Term receivables, long-term                                                                                   |  |                      | 126,393   |   |                         |   | 139,146   |  
|Goodwill                                                                                                      |  |                      | 333,566   |   |                         |   | 333,806   |  
|Intangible assets, net                                                                                        |  |                      | 36,642    |   |                         |   | 40,338    |  
|Deferred income taxes                                                                                         |  |                      | 21,083    |   |                         |   | 20,827    |  
|Other assets                                                                                                  |  |                      | 19,062    |   |                         |   | 20,834    |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total assets                                                                                                  |  | $                    | 1,000,084 |   |                         | $ | 1,021,907 |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Liabilities and Stockholders Equity                                                                          |  |                      |           |   |                         |   |           |  
|Current liabilities:                                                                                          |  |                      |           |   |                         |   |           |  
|Short-term borrowings                                                                                         |  | $                    | 7,889     |   |                         | $ | 9,632     |  
|Accounts payable                                                                                              |  |                      | 17,583    |   |                         |   | 18,037    |  
|Income taxes payable                                                                                          |  |                      | 31,676    |   |                         |   | 35,299    |  
|Accrued payroll and related liabilities                                                                       |  |                      | 51,847    |   |                         |   | 81,709    |  
|Accrued liabilities                                                                                           |  |                      | 36,863    |   |                         |   | 37,098    |  
|Deferred revenue                                                                                              |  |                      | 118,482   |   |                         |   | 103,336   |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total current liabilities                                                                                     |  |                      | 264,340   |   |                         |   | 285,111   |  
|Notes payable                                                                                                 |  |                      | 283,475   |   |                         |   | 283,983   |  
|Other long-term liabilities                                                                                   |  |                      | 18,115    |   |                         |   | 19,098    |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total liabilities                                                                                             |  |                      | 565,930   |   |                         |   | 588,192   |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Commitments and contingencies (Note 12)                                                                       |  |                      |           |   |                         |   |           |  
|Stockholders equity:                                                                                         |  |                      |           |   |                         |   |           |  
|Common stock, no par value, 200,000 shares authorized; 78,130 and 76,430 issued and outstanding, respectively |  |                      | 372,445   |   |                         |   | 363,455   |  
|Incentive stock, no par value, 1,200 shares authorized; none issued                                           |  |                      |          |   |                         |   |          |  
|Deferred compensation                                                                                         |  |                      | (203      | ) |                         |   | (508      | )
|Retained earnings                                                                                             |  |                      | 35,331    |   |                         |   | 39,717    |  
|Accumulated other comprehensive income                                                                        |  |                      | 26,581    |   |                         |   | 31,051    |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total stockholders equity                                                                                    |  |                      | 434,154   |   |                         |   | 433,715   |  
|                                                                                                              |  |                      |           |   |                         |   |           |  
|Total liabilities and stockholders equity                                                                    |  | $                    | 1,000,084 |   |                         | $ | 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)



|                                                                                         |  |      |         |   |      |   |         |  
|---------------------------------------------------------------------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Three months ended March 31,                                                             |  | 2005 |         |   | 2004 |  
|In thousands                                                                             |  |      |         |   |      |  
|Operating Cash Flows:                                                                    |  |      |         |   |      |   |         |  
|Net income (loss)                                                                        |  | $    | (4,386  | ) |      | $ | 2,178   |  
|Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |      |         |   |      |   |         |  
|Depreciation and amortization of property, plant and equipment                           |  |      | 6,196   |   |      |   | 5,888   |  
|Amortization                                                                             |  |      | 5,124   |   |      |   | 4,439   |  
|Deferred income taxes                                                                    |  |      | (82     | ) |      |   | (284    | )
|Changes in other long-term liabilities and minority interest                             |  |      | (691    | ) |      |   | (1,273  | )
|Gain on sale of property, plant and equipment                                            |  |      | (957    | ) |      |   |        |  
|Changes in operating assets and liabilities:                                             |  |      |         |   |      |   |         |  
|Trade accounts receivable                                                                |  |      | 10,068  |   |      |   | 13,463  |  
|Prepaid expenses and other                                                               |  |      | (5,326  | ) |      |   | (4,154  | )
|Term receivables, long-term                                                              |  |      | 10,608  |   |      |   | (12,211 | )
|Accounts payable and accrued liabilities                                                 |  |      | (26,749 | ) |      |   | (29,672 | )
|Income taxes payable                                                                     |  |      | (3,096  | ) |      |   | 367     |  
|Deferred revenue                                                                         |  |      | 16,892  |   |      |   | 29,772  |  
|                                                                                         |  |      |         |   |      |   |         |  
|Net cash provided by operating activities                                                |  |      | 7,601   |   |      |   | 8,513   |  
|                                                                                         |  |      |         |   |      |   |         |  
|Investing Cash Flows:                                                                    |  |      |         |   |      |   |         |  
|Proceeds from sales and maturities of short-term investments                             |  |      | 18,421  |   |      |   | 2,991   |  
|Purchases of short-term investments                                                      |  |      | (27,363 | ) |      |   | (6,964  | )
|Purchases of property, plant and equipment                                               |  |      | (7,264  | ) |      |   | (4,820  | )
|Proceeds from sale of property, plant and equipment                                      |  |      | 9,731   |   |      |   |        |  
|Purchases of intangible assets                                                           |  |      |        |   |      |   | (1,300  | )
|Acquisitions of businesses and equity interests                                          |  |      | (1,887  | ) |      |   | (3,809  | )
|                                                                                         |  |      |         |   |      |   |         |  
|Net cash used in investing activities                                                    |  |      | (8,362  | ) |      |   | (13,902 | )
|                                                                                         |  |      |         |   |      |   |         |  
|Financing Cash Flows:                                                                    |  |      |         |   |      |   |         |  
|Proceeds from issuance of common stock                                                   |  |      | 8,990   |   |      |   | 8,277   |  
|Net increase (decrease) in short-term borrowings                                         |  |      | (1,553  | ) |      |   | 2,576   |  
|Repayment of long-term notes payable                                                     |  |      | (436    | ) |      |   | (499    | )
|                                                                                         |  |      |         |   |      |   |         |  
|Net cash provided by financing activities                                                |  |      | 7,001   |   |      |   | 10,354  |  
|                                                                                         |  |      |         |   |      |   |         |  
|Effect of exchange rate changes on cash and cash equivalents                             |  |      | (793    | ) |      |   | (79     | )
|                                                                                         |  |      |         |   |      |   |         |  
|Net change in cash and cash equivalents                                                  |  |      | 5,447   |   |      |   | 4,886   |  
|Cash and cash equivalents at beginning of period                                         |  |      | 67,916  |   |      |   | 68,333  |  
|                                                                                         |  |      |         |   |      |   |         |  
|Cash and cash equivalents at end of period                                               |  | $    | 73,363  |   |      | $ | 73,219  |  
|                                                                                         |  |      |         |   |      |   |         |  



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 12.



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. Revenue from perpetual license arrangements is recognized upon shipment, provided persuasive evidence of an arrangement exists, fees are fixed or determinable and collection is probable. Product revenue from term license
installment agreements is recognized 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



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



Revenue from annual maintenance and support
arrangements is deferred and recognized ratably over the term of the contract. Revenue from consulting and training is recognized 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, which supercedes SAB No. 101, Revenue Recognition in Financial Statements. Revenue is recognized 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, revenue is recognized upon acceptance. A limited warranty is provided 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. Service and maintenance revenues are recognized 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 months ended
March 31, 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 ended March 31,          |  | 2005 |   |  | 2004 |  
|Risk-free interest rate               |  | 3.9  | % |  | 3.0  | %
|Dividend yield                        |  | 0    | % |  | 0    | %
|Expected life (in years)              |  | 4.3  |   |  | 4.3  |  
|Volatility                            |  | 45   | % |  | 45   | %
|                                      |  |     
|Employee Stock Purchase Plans (ESPPs) |  |      |   |  |      |  
|                                      |  |     
|Three months ended March 31,          |  | 2005 |   |  | 2004 |  
|Risk-free interest rate               |  | 3.1  | % |  | 1.7  | %
|Dividend yield                        |  | 0    | % |  | 0    | %
|Expected life (in years)              |  | 1.25 |   |  | 1.25 |  
|Volatility                            |  | 45   | % |  | 45   | %



The Company used
expected volatility to estimate volatility for options granted during the three months ended March 31, 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 $5.72 and $6.83 per share
during the three months ended March 31, 2005 and 2004, respectively. The weighted average estimated fair value of purchase rights under the ESPPs was $2.81 and $2.79 during the three months ended March 31, 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
are considered noncompensatory under APB Opinion No. 25. The Company recorded compensation expense for amortization of deferred compensation related to unvested stock options assumed through acquisitions of $305 and $374 for the three months ended
March 31, 2005 and 2004, respectively. If the Company had accounted for its stock-based compensation plans in accordance with SFAS No. 123, the



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Companys net income (loss) and net income (loss) per share would approximate the pro forma disclosures below:



|                                                                                                                                                                                 |  |      |        |   |      |   |        |  
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---- | ------ | - | ---- | - | ------ | -
|Three months ended March 31,                                                                                                                                                     |  | 2005 |        |   | 2004 |  
|Net income (loss), as reported                                                                                                                                                   |  | $    | (4,386 | ) |      | $ | 2,178  |  
|Less: Total stock-based employee compensation expense determined under fair value based method, for all awards not previously included in net
income, net of related tax benefit |  |      | (3,852 | ) |      |   | (4,776 | )
|                                                                                                                                                                                 |  |      |        |   |      |   |        |  
|Pro forma net loss                                                                                                                                                               |  | $    | (8,238 | ) |      | $ | (2,598 | )
|                                                                                                                                                                                 |  |      |        |   |      |   |        |  
|Basic net income (loss) per share  as reported                                                                                                                                  |  | $    | (0.06  | ) |      | $ | 0.03   |  
|Basic net loss per share  pro forma                                                                                                                                             |  | $    | (0.11  | ) |      | $ | (0.04  | )
|Diluted net income (loss) per share  as reported                                                                                                                                |  | $    | (0.06  | ) |      | $ | 0.03   |  
|Diluted net loss per share  pro forma                                                                                                                                           |  | $    | (0.11  | ) |      | $ | (0.04  | )



|(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 employee stock options, purchase rights from
Employee Stock Purchase Plans and warrants using the treasury stock method and common shares issued assuming 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 March 31,                                                                              |  | 2005 |        |   | 2004
|Net Income (Loss)                                                                                         |  | $    | (4,386 | ) |      | $ | 2,178 
|Weighted average shares used to calculate basic net income (loss) per share                               |  |      | 78,007 |   |      |   | 69,803
|Employee stock options and employee stock purchase plan                                                   |  |      |       |   |      |   | 2,960 
|                                                                                                          |  |      |        |   |      |   |       
|Weighted average common and potential common shares used to calculate diluted net income (loss) per share |  |      | 78,007 |   |      |   | 72,763
|                                                                                                          |  |      |        |   |      |   |       
|Basic net income (loss) per share                                                                         |  | $    | (0.06  | ) |      | $ | 0.03  
|                                                                                                          |  |      |        |   |      |   |       
|Diluted net income (loss) per share                                                                       |  | $    | (0.06  | ) |      | $ | 0.03  
|                                                                                                          |  |      |        |   |      |   |       



Options and warrants
to purchase 19,502 and 7,294 shares of common stock for the three months ended March 31, 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 months ended March 31, 2005 and 2004 was anti-dilutive. 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 $2,697 and additional incremental shares of 7,369 and 7,413 for the three months ended March 31, 2005 and 2004, respectively. If the Debentures had been dilutive, additional earnings of $1,083
and $686 and incremental shares of 4,700 would have been included in the calculation of net income (loss) per share for the three months ended March 31, 2005 and 2004, respectively.



8



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##### Table of Contents

|(4) | Short-Term Borrowings  In July, 2003, the Company renewed its syndicated, senior, unsecured credit facility that allows the Company to borrow up to $100,000.
This facility is a three-year revolving credit facility, which terminates on July 14, 2006. Under this facility, the Company has the option to pay interest based on LIBOR plus a spread of between 1.25% and 2.00% or prime plus a spread of between 0%
and 0.75%, 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 0.35% and 0.50% 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 against the credit facility during the three months ended March 31, 2005 and had no balance outstanding at March 31, 2005 and 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 $7,889 and
$9,632 were outstanding under these facilities at March 31, 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 4.19% for the three months ended March 31, 2005. 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. 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 March 31, 2005. Some or all of the Notes may be redeemed by the Company for cash on or after June 20,
2005. 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 include 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 $1,975 and $2,483 were outstanding under these agreements at March 31, 2005 and December 31, 2004, respectively.



|(6) | Stock Repurchases  The board of directors has authorized the Company to repurchase shares in the open market. There were no repurchases in the three months ended
March 31, 2005 and 2004. The Company considers market conditions, alternative uses of cash and balance sheet ratios when evaluating share repurchases.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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



|                                |  |      |       |      |   |        |  
|------------------------------- |  | ---- | ----- | ---- | - | ------ | -
|Three months ended March 31,    |  | 2005 |       | 2004 |  
|Interest paid                   |  | $    | 1,460 |      | $ | 1,081  |  
|Income tax paid (refunded), net |  | $    | 3,518 |      | $ | (1,356 | )



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



|                                                           |  |      |        |   |      |   |       |  
|---------------------------------------------------------- |  | ---- | ------ | - | ---- | - | ----- | -
|Three months ended March 31,                               |  | 2005 |        |   | 2004 |  
|Net income (loss)                                          |  | $    | (4,386 | ) |      | $ | 2,178 |  
|Change in unrealized gain (loss) on derivative instruments |  |      | (906   | ) |      |   | (815  | )
|Change in accumulated translation adjustment               |  |      | (3,564 | ) |      |   | (342  | )
|                                                           |  |      |        |   |      |   |       |  
|Comprehensive income (loss)                                |  | $    | (8,856 | ) |      | $ | 1,021 |  
|                                                           |  |      |        |   |      |   |       |  



|(9) | Special Charges For the three months ended March 31, 2005, the Company recorded special charges of $1,313. These charges primarily consisted of costs incurred
for employee terminations.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The Company
rebalanced its workforce by 24 employees during the three months ended March 31, 2005. The reduction impacted several employee groups. Employee severance costs of $1,191 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 will be expended during the first six months of 2005. There have been no significant modifications to the amount of these charges.



Other costs of $122 primarily include legal costs incurred to sever any
ongoing obligation related to a defined benefit pension plan acquired in connection with an acquisition in 1999.



For the three months ended March 31, 2004, the Company recorded no special charges.



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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:



|                                                |  |                                              |        |              |   |               |  |   |                                               |   |  |   |       
|----------------------------------------------- |  | -------------------------------------------- | ------ | ------------ | - | ------------- |  | - | --------------------------------------------- | - |  | - | ------
|                                                |  | Accrued Special Charges at December 31, 2004 |        | 2005 Charges |   | 2005 Payments |  |   | Accrued Special Charges at March 31, 2005 (1)
|Employee severance and related costs            |  |                                              | 3,038  |              |   | 1,191         |  |   | (2,518                                        | ) |  |   | 1,711 
|Lease termination fees and other facility costs |  |                                              | 8,007  |              |   |              |  |   | (136                                          | ) |  |   | 7,871 
|Other costs                                     |  |                                              | 1,287  |              |   | 122           |  |   | (21                                           | ) |  |   | 1,388 
|                                                |  |                                              |        |              |   |               |  |   |                                               |   |  |   |       
|Total                                           |  | $                                            | 12,332 |              | $ | 1,313         |  | $ | (2,675                                        | ) |  | $ | 10,970
|                                                |  |                                              |        |              |   |               |  |   |                                               |   |  |   |       

---

|(1) | Of the $10,970 total accrued special charges at March 31, 2005, $5,692 represents the long-term portion of accrued lease termination fees and other facility costs. The remaining
balance of $5,278 represents the short-term portion of accrued special charges.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(10) | 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 three months ended March 31, 2005.
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(11) | Derivative Instruments and Hedging Activities  The Company is exposed to fluctuations in foreign currency exchange rates. To manage the volatility relating to
these exposures, 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 where the Company is in a short position. 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 $2,004 and $3,264 at March 31, 2005 and December 31, 2004, respectively.



11



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



|                                          |  |      |       |   |      |   |      |  
|----------------------------------------- |  | ---- | ----- | - | ---- | - | ---- | -
|Three months ended March 31,              |  | 2005 |       |   | 2004 |  
|Beginning balance                         |  | $    | 1,144 |   |      | $ |     |  
|Changes in fair value of cash flow hedges |  |      | (735  | ) |      |   | (932 | )
|Net (gain) loss transferred to earnings   |  |      | (171  | ) |      |   | 117  |  
|                                          |  |      |       |   |      |   |      |  
|Net unrealized gain (loss)                |  | $    | 238   |   |      | $ | (815 | )
|                                          |  |      |       |   |      |   |      |  



The remaining balance
in accumulated other comprehensive income at March 31, 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 deferred losses of $750 and $2 to system and software revenues relating to foreign currency contracts hedging revenues for the three
months ended March 31, 2005 and 2004, respectively. The Company transferred a deferred gain of $921 and a deferred loss of $115 to operating expenses relating to foreign currency contracts hedging commission and other expenses for the three months
ended March 31, 2005 and 2004, respectively.



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 $415 and $138 for the three months ended March 31, 2005 and 2004,
respectively. The Company recorded expense related to time value in interest expense of $201 and $114 for the three months ended March 31, 2005 and 2004, respectively.



|(12) | 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 on a month-to-month basis after meeting a six-month lease minimum.



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 March 31, 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 affect on
the Companys results of operations.



|(13) | 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. During the three months ended March 31, 2005
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

| | and 2004, aggregate revenues of $4,166 and $3,652, which represented 2.5% and 2.2%, respectively, of the Companys total revenues, were recognized from
these customers. Management believes the transactions between the Company and these customers were carried out on an arms length basis.
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(14) | 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, 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 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 represents research and development, corporate marketing and selling, corporate general and
administration and special charges. Reportable segment information is as follows:



|                             |  |      |         |   |      |   |         |  
|---------------------------- |  | ---- | ------- | - | ---- | - | ------- | -
|Three months ended March 31, |  | 2005 |         |   | 2004 |  
|Revenues                     |  |      |         |   |      |   |         |  
|Americas                     |  | $    | 71,087  |   |      | $ | 65,030  |  
|Europe                       |  |      | 43,788  |   |      |   | 43,821  |  
|Japan                        |  |      | 32,422  |   |      |   | 38,795  |  
|Pacific Rim                  |  |      | 17,037  |   |      |   | 16,759  |  
|                             |  |      |         |   |      |   |         |  
|Total                        |  | $    | 164,334 |   |      | $ | 164,405 |  
|                             |  |      |         |   |      |   |         |  
|Operating income (loss)      |  |      |         |   |      |   |         |  
|Americas                     |  | $    | 38,824  |   |      | $ | 32,828  |  
|Europe                       |  |      | 20,430  |   |      |   | 21,263  |  
|Japan                        |  |      | 21,159  |   |      |   | 28,408  |  
|Pacific Rim                  |  |      | 11,969  |   |      |   | 12,361  |  
|Corporate                    |  |      | (95,432 | ) |      |   | (89,011 | )
|                             |  |      |         |   |      |   |         |  
|Total                        |  | $    | (3,050  | ) |      | $ | 5,849   |  
|                             |  |      |         |   |      |   |         |  



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 ended March 31, |  | 2005 |         | 2004
|Revenues                     |  |      |         |      |   |        
|Integrated circuit design    |  | $    | 113,304 |      | $ | 115,742
|Systems design               |  |      | 43,468  |      |   | 41,936 
|Professional services        |  |      | 7,562   |      |   | 6,727  
|                             |  |      |         |      |   |        
|Total                        |  | $    | 164,334 |      | $ | 164,405
|                             |  |      |         |      |   |        



|(15) | 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.
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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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 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 evaluating 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 in the first quarter of 2006, 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 December 2004, the FASB issued SFAS No. 153, Exchanges of Nonmonetary Assets  An Amendment of APB Opinion No. 29, Accounting for
Nonmonetary Transactions. SFAS No. 153 eliminates the exception from fair value measurement for nonmonetary exchanges of similar productive assets and replaces it with an exception for exchanges that do not have commercial substance. SFAS No.
153 specifies that a nonmonetary exchange has commercial substance if the future cash flows of the entity are expected to change significantly as a result of the exchange. SFAS No. 153 is effective for fiscal periods beginning after June 15, 2005.
The adoption of SFAS No. 153 is not expected to have a material impact on the Companys financial position or results of operations.



14



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##### Table of Contents



|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 exceptionally strong and broad based
with system and software bookings and backlog up significantly in 2004 compared to the prior year. During the three months ended March 31, 2005, the Company experienced a decline in system and software bookings year over year for the first time
since the first quarter of 2002.



Compared to historical trends, the Company
experienced a smaller than average deal size and a lower number of new customers in the first quarter of 2005. The largest ten transactions for the quarter accounted for approximately 25% of total system and software bookings in contrast to a
typical 40% to 50%. As there were low levels of renewals for expiring term deals with upfront revenue recognition, the Companys outlook for the quarter had relied on backlog consumption and forecasted new business that typically materializes
during a quarter. In contrast to past experience, this new business did not come in as forecasted during the three months ended March 31, 2005.



The Company experienced weakness and lack of demand in pure semiconductor accounts during the three months ended March 31, 2005. This was reflected in the bookings of the
Companys Calibre product line, which were down substantially year over year. Despite the decline in bookings in the first quarter, the Company is confident in the long-term health of this product line. The Company believes Calibre will
experience year over year growth for 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 six
months of 2005. The Company believes the weakness Calibre experienced in first quarter of 2005 does not indicate a trend.



As a result of the decline in bookings, the Company consumed substantial backlog in the first quarter of 2005, meaning that systems and software revenue was higher than
bookings. The Company views backlog as an important tool to mitigate forecast risk as it reduces dependency on any one customer transaction. While the Company typically consumes backlog in the first quarter, the level of consumption for the three
months ended March 31, 2005 was higher than anticipated. The Company reduced revenue and earnings guidance for the second quarter and full year 2005, but anticipates a return to previously guided levels for the third and fourth quarter of 2005 based
on the strength of renewal opportunities.



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 pages 17-18 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



15



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##### Table of Contents

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.
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 2004, 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 number one market position, or extend an existing number one market position.



The Company internally developed and, in 2004, delivered several significant products. These
new products include Xtreme PCB (allows simultaneous team design of a single PCB), Constraint Editing System (for PCB), ADMS 4.0 (support for multiple languages and testbenches for analog/digital design), Catapult C (synthesis of pure un-timed C
into RTL) and Calibre DFM functionality (first tools to analyze and modify designs for increased manufacturability).



Also in 2004, the Company acquired several new products or technologies. These include Assertion Technology (0-In), Parallel and Serial ATA IP (Palmchip), Unified
Modeling Language for high-level design of embedded software (Project Technology), Compiler development tool for embedded software (Atair), and low end cabling tools for wire harness (VeSys).



During the three months ended March 31, 2005, the Company launched its next-generation
constraint editor system (CES) into its Expedition Series and Board Station® RE PCB design flows. Providing a centralized constraint editor greatly simplifies the task of managing constraints that previously had to be entered into individual tools in the flow separately.



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.



Q1 2005 Financial Performance



| |  |  | Total revenues were $164,334 for the three months ended March 31, 2005, which is flat from the comparable period of 2004, resulting from strength in IC Design to Silicon and New and
Emerging Markets offset by weakness in Scalable Verification. Revenue strength in IC Design to Silicon was primarily attributable to the Calibre RET (Resolution Enhancement Technology) product line, while New and Emerging Markets strength came from
the Companys Design for Test product lines. Weakness in Scalable Verification was primarily concentrated in the ModelSim product line, driven largely by a very strong comparable period of 2004.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | System and software revenues were $91,560 for the three months ended March 31, 2005, a 3% decrease from system and software revenues of $94,521 for the comparable period of 2004
primarily due to a decline in Scalable Verification revenues. Product revenue split by license model for the first quarter of 2005 was 49% term with upfront revenue recognition, 36% perpetual and 15% term with ratable revenue recognition (which
includes due and payable revenue recognition), compared to first quarter 2004 product revenue splits of 47% term with upfront revenue recognition, 39% perpetual and 14% term with ratable revenue recognition.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | Service and support revenues were $72,774 for the three months ended March 31, 2005, a 4% increase over the comparable period of 2004 service and support revenues of $69,884,
primarily due to the strengthening of certain foreign currencies and the growth in our installed base.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | By geography, first quarter revenues year over year increased 9% in the Americas, were flat in Europe, decreased 16% in Japan and increased 2% in Pacific Rim in 2005. The Americas
contributed the largest share of revenues at nearly 43% for the three months ended March 31, 2005, up from 40% for the three months ended March 31, 2004. Japans percentage of total revenues decreased to 20% for the three months ended March 31,
2005 as compared to 24% for the three months ended March 31, 2004. Percentage of total revenues for Europe and Pacific Rim were flat year over year at 27% and 10%, respectively.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Net loss for the first three months of 2005 was $4,386, compared to net income of $2,178 for the comparable period of 2004. The lower results were primarily due to increased
operating expenses partially offset by an increase in other income, net. Other income, net increased for the three months ended March 31, 2005 due to a greater amount of interest income earned on term receivable balances than in the comparable
period in 2004 and from a gain on the sale of a building in the first quarter of 2005.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Trade accounts receivable, net decreased to $228,811 at March 31, 2005, down 6% from $242,690 at the end of 2004. Average days sales outstanding increased to 125 days at March 31,
2005 from 102 days at the end of 2004.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Cash generated from operating activities was $7,601 for the three months ended March 31, 2005 compared to cash generated of $8,513 in the comparable period of 2004. At March 31,
2005, cash, cash equivalents and short-term investments were $108,676, up 15% 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  System and software revenues are derived 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 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



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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 or contributed capital 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 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



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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 over the lesser of the loan period or six months.



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.



RESULTS OF OPERATIONS



REVENUES AND GROSS MARGINS



|                                         |  |      |         |   |        |    |    |      |   |         |  
|---------------------------------------- |  | ---- | ------- | - | ------ | -- | -- | ---- | - | ------- | -
|Three months ended March 31,             |  | 2005 |         |   | Change |    |    | 2004 |  
|System and software revenues             |  | $    | 91,560  |   |        | (3 | %) |      | $ | 94,521  |  
|System and software gross margin percent |  |      | 92      | % |        |    |    |      |   | 93      | %
|Service and support revenues             |  |      | 72,774  |   |        | 4  | %  |      |   | 69,884  |  
|Service and support gross margin percent |  |      | 73      | % |        |    |    |      |   | 71      | %
|                                         |  |      |         |   |        |    |    |      |   |         |  
|Total                                    |  | $    | 164,334 |   |        |    |    |      | $ | 164,405 |  
|                                         |  |      |         |   |        |    |    |      |   |         |  



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System and Software



System and software revenues are derived from the sale of licenses of software products and emulation hardware systems. System and software
revenues for the three months ended March 31, 2005 totaled $91,560, representing a decrease of $2,961 or 3% from the comparable period of 2004. The decrease was primarily attributable 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 (i) an increase in IC Design to Silicon revenues related to the Physical Verification and Analysis product lines
through the consumption of backlog and (ii) a favorable impact of approximately 1% due to the strengthening of foreign currencies for the three months ended March 31, 2005.



System and software gross margins were 92% for the three months ended March 31, 2005, compared to 93% for the comparable period of 2004.
System and software gross margins were lower for the three months ended March 31, 2005 compared to the comparable period of 2004 due to write-downs of emulation hardware systems inventory for the three months ended March 31, 2005 of $1,229 compared
to $1,020 for the comparable period 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.



Amortization of purchased technology to system and software cost of goods sold was $2,713 for the three months ended March 31, 2005,
compared to $2,466 in the comparable period of 2004. The increase in amortization of purchased technology was primarily due to acquisitions during 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. Service and support revenues for the three months ended March 31, 2005 totaled $72,774, representing an increase of $2,890 or 4% over the
comparable period of 2004. The increase in service and support revenues for the three months ended March 31, 2005 was primarily attributable to the growth in the installed base and strengthening of foreign currencies.



Service and support gross margins for the three months ended March 31, 2005 were 73% compared
to 71% for the comparable period of 2004. Service and support gross margins increased for the three months ended March 31, 2005 compared to the same period in 2004 primarily due to higher revenue and lower costs resulting from headcount reductions.



Geographic Revenues Information



|                             |  |      |         |        |     |    |      |   |        
|---------------------------- |  | ---- | ------- | ------ | --- | -- | ---- | - | -------
|Three months ended March 31, |  | 2005 |         | Change |     |    | 2004
|Americas                     |  | $    | 71,087  |        | 9   | %  |      | $ | 65,030 
|Europe                       |  |      | 43,788  |        | 0   | %  |      |   | 43,821 
|Japan                        |  |      | 32,422  |        | (16 | %) |      |   | 38,795 
|Pacific Rim                  |  |      | 17,037  |        | 2   | %  |      |   | 16,759 
|                             |  |      |         |        |     |    |      |   |        
|Total                        |  | $    | 164,334 |        |     |    |      | $ | 164,405
|                             |  |      |         |        |     |    |      |   |        



Revenues in the Americas increased for
the three months ended March 31, 2005 as compared to the three months ended March 31, 2004 due to higher software product sales. Revenues outside the Americas represented 57% of total revenues for the three months ended March 31, 2005, compared to
60% for the comparable period 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 2% for the three months ended March 31, 2005. Exclusive of currency effects, lower revenues for the three months ended March 31, 2005 compared to the comparable period of 2004 were primarily due
to lower software product sales. The effects of exchange rate differences from the Japanese yen to the United States dollar positively impacted Japanese revenues by approximately 4% for the three months ended March 31, 2005. Exclusive of currency
effects, lower revenue for the three months ended March 31, 2005 compared to the comparable period of 2004 was primarily due to lower software product sales. Revenues in the Pacific Rim increased for the three months ended March 31, 2005 as compared
to the comparable period of 2004 primarily as a result of higher support sales. 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.



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OPERATING EXPENSES



|                                  |  |      |        |        |    |   |      |   |       
|--------------------------------- |  | ---- | ------ | ------ | -- | - | ---- | - | ------
|Three months ended March 31,      |  | 2005 |        | Change |    |   | 2004
|Research and development          |  | $    | 51,310 |        | 6  | % |      | $ | 48,383
|Marketing and selling             |  | $    | 67,575 |        | 6  | % |      | $ | 63,706
|General and administration        |  | $    | 18,708 |        | 1  | % |      | $ | 18,562
|Amortization of intangible assets |  | $    | 1,122  |        | 43 | % |      | $ | 782   
|Special charges                   |  | $    | 1,313  |        |   |   |      | $ |      



Research and Development



R&D costs increased for the three months
ended March 31, 2005 over the comparable periods of 2004 primarily due to increased headcount in the following areas: (i) IC Design to Silicon, (ii) the Embedded Systems product line, and (iii) Scalable Verification, due to an acquisition in the
third quarter of 2004.



Marketing and Selling



Marketing and selling costs increased for the three months ended March 31, 2005 over the
comparable period of 2004 primarily due to increased headcount and due to a weaker United States dollar that increased marketing and selling expenses by approximately 2% for the three months ended March 31, 2005.



General and Administration



General and administration costs were flat for the three months ended March 31, 2005 over
the comparable period of 2004. A weaker United States dollar during 2005 increased general and administration expenses by approximately 2% offset by a decrease in variable compensation due to a decline in operating income for the three months ended
March 31, 2005.



Amortization of Intangible Assets



Amortization of intangible assets increased for the three months ended March 31, 2005 as
compared to the comparable period of 2004 due to acquisitions during 2004.



Special Charges



For the three months ended March 31,
2005, the Company recorded special charges of $1,313. These charges primarily consisted of costs incurred for employee terminations.



The Company rebalanced its workforce by 24 employees during the three months ended March 31, 2005. The reduction impacted several employee groups. Employee severance
costs of $1,191 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. The majority of these costs will be expended during the first six months of 2005. There have been no significant
modifications to the amount of these charges.



Other costs of $122 primarily
include legal costs incurred to sever any ongoing obligation related to a defined benefit pension plan acquired in connection with an acquisition in 1999.



For the three months ended March 31, 2004, the Company recorded no special charges.



Other Income, Net



Other income, net totaled $3,615 for the three months ended March 31, 2005, compared to $1,230 for the comparable period in 2004. Interest income was $2,763 for the three
months ended March 31, 2005, compared to $1,632 for the comparable period of 2004. Interest income includes income related to the Companys term license installment agreements of $1,982 and $1,258 for the three months ended March 31, 2005 and
2004, respectively. In addition, the Company recorded income relating to time value of foreign currency contracts of $415 for the three months ended March 31, 2005, compared to $138 for the comparable period in 2004. Other income, net was impacted
by a foreign currency gain of $23 for the three months ended March 31, 2005, compared to a loss of $126 for the comparable period of 2004. In addition, other income, net was favorably impacted by a net gain on the sale of a building of $957 during
the three months ended March 31, 2005.



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Interest Expense



Interest expense was $5,031 for the three months ended March 31, 2005, compared to $4,455 for the comparable period in 2004. Interest expense is primarily attributable
to the Companys convertible subordinated notes and debentures issued in September 2002 and August 2003, respectively. The Company recorded interest expense relating to the time value of foreign currency contracts of $201 and $114 for the three
months ended March 31, 2005 and 2004, respectively.



Provision for Income
Taxes



The benefit from income taxes was $80 for the three months
ended March 31, 2005 compared to the provision for income taxes of $446 for the comparable period of 2004. 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. 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. The tax benefit for the
three months ended March 31, 2005 was reduced by a tax expense of $765 for amortization of a deferred tax charge recorded in 2002; at March 31, 2005 only $638 of this deferred tax charge remained to be amortized in the next quarter. The benefit from
income taxes for the three months ended March 31, 2005 otherwise differs from tax computed at the federal statutory income tax rate primarily due to the impact of the tax rate differential on earnings of foreign subsidiaries, partially offset by
state taxes and taxes related to the sale of a building.



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. Upon repatriation, 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. The deduction is subject to a number of limitations and uncertainty remains as to how to interpret numerous provisions in the
Act. 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 is not yet in a position to decide 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 as the tax effects cannot be reasonably estimated.
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 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.



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Effects of Foreign Currency Fluctuations



More than half of the Companys revenues and approximately one-fourth of its expenses were generated outside of the United States for
the first three 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.



Foreign currency translation adjustment, a component of accumulated other comprehensive income reported in the stockholders equity section of the consolidated balance sheets, decreased to $27,198 at March 31, 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 March 31, 2005 were $108,676
compared to $94,287 at December 31, 2004. Cash provided by operating activities in the first three months of 2005 was $7,601 compared to $8,513 during the same period in 2004. The decrease in cash flows from operating activities was primarily due to
(i) a loss before income taxes of $4,386 in the first quarter of 2005 compared to income before taxes of $2,624 in the same period in 2004, (ii) a smaller decrease in accounts receivable in the first quarter of 2005 than in 2004, and (iii) a smaller
increase in first-quarter deferred revenue in 2005 compared to 2004. The decrease in cash flows from operating activities was partially offset by a decrease in term receivables, long-term in the first three months of 2005.



Cash provided by investing activities, excluding short-term investments, was $580 in the
first three months of 2005, compared to cash used in investing activities of $9,929 during the same period in 2004. Cash provided by investing activities in the first three months of 2005 was due to net proceeds of $9,731 from the sale of a
property, partially offset by capital expenditures of $7,264 and cash paid related to prior year acquisitions of $1,887, while the same period in 2004 included capital expenditures of $4,820, cash paid for acquisitions of $3,809, and purchases of
intangible assets of $1,300.



Cash provided by financing activities was $7,001
and $10,354 in the first three months of 2005 and 2004, respectively. The decrease of $3,353 in the first three months of 2005 was primarily the result of a reduction in short-term borrowings of $1,553 compared to proceeds from short-term borrowings
of $2,576 in the same 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 $8,990 and $8,277 during the three months ended March
31, 2005 and 2004, respectively.



Trade Accounts Receivable, Net



Trade accounts receivable, net decreased to $228,811 at March 31,
2005 from $242,690 at December 31, 2004. Excluding the current portion of term receivables of $133,828 and $125,832, average days sales outstanding were 52 days and 49 days at March 31, 2005 and December 31, 2004, respectively. Average days sales
outstanding in total accounts receivable increased from 102 days at December 31, 2004 to 125 days at March 31, 2005. The increase in days sales outstanding was primarily due to the decrease in revenue for the three months ended March 31, 2005 as
compared to the three months ended December 31, 2004 and the effect of annual support renewals in the first quarter of 2005. 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.



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Prepaid Expenses and Other



Prepaid expenses and other increased from $23,289 at December 31, 2004 to $28,684 at March 31, 2005, due primarily to prepayments for
benefits, sales commissions and renewals of maintenance contracts.



Term
Receivables, Long-Term



Term receivables, long-term decreased to
$126,393 at March 31, 2005 compared to $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 was due to a decrease in term license revenue for the three months ended March 31, 2005 in addition to the run-off of term agreements originating in prior periods.



Accrued Payroll and Related Liabilities



Accrued payroll and related liabilities decreased from $81,709 at December 31, 2004 to
$51,847 at March 31, 2005. The decrease was primarily due to payments of the 2004 annual and fourth quarter incentive compensation, in addition to a decrease in accrued sales commissions as a result of a decrease in commissionable revenue for the
three months ended March 31, 2005.



Property, Plant and Equipment, net



Property, plant and equipment, net decreased from $91,224 at December
31, 2004 to $82,723 at March 31, 2005. The decrease was primarily due to the sale of a building the Company was no longer utilizing. The carrying value of the building and related assets, net of accumulated depreciation, at the sale date was $8,774.
This decrease was partially offset by the net effect of normal quarterly capital purchases and the depreciation of property, plant and equipment.



Deferred Revenue



Deferred revenue consists primarily of prepaid annual software maintenance services. Deferred revenue increased to $118,482 at March 31, 2005 from $103,336 at December 31, 2004. The increase was primarily due to
annual support contract renewals.



Capital Resources



Expenditures for property and equipment increased to $7,264 for the first three months of
2005 compared to $4,820 for the same period in 2004. Expenditures for property and equipment in the first three months of 2005 and 2004 did not include any individually significant projects. In the first three months of 2005, the Company paid $1,887
related to holdbacks and transaction costs on prior year acquisitions. In the first three months of 2004, the Company acquired (i) Project Technology Inc. and (ii) a minority equity interest in M2000, a French company, which together resulted in
total net cash payments of $3,009. Additionally, the Company paid $800 related to a holdback on a prior year acquisition.



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 4.19% and 2.80% for the three months ended March 31, 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. 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 March 31, 2005. Some or all of the Notes may be redeemed by the Company for cash on or after June 20, 2005. The
Notes rank pari passu with the Debentures.



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In July 2003, the Company renewed its syndicated, senior, unsecured credit facility that allows the Company to borrow up
to $100,000. This facility is a three-year revolving credit facility, which terminates on July 14, 2006. Under this facility, the Company has the option to pay interest based on LIBOR plus a spread of between 1.25% and 2.00% or prime plus a spread
of between 0% and 0.75%, 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 0.35% and 0.50% 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 against the credit facility during the three months ended March 31, 2005 and had no balance outstanding at March 31, 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, and amounts available under existing credit facilities 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.



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 second quarter are expected to be $155,000. Earnings per share is expected to be a loss of between $0.14 and $0.04 per share. Revenues for the third and
fourth quarter of 2005 are expected to be $180,000 and $226,000, respectively, while earnings per share for the same periods is expected to be $0.06 and $0.49, respectively. Revenues for the year ended December 31, 2005 are expected to be $725,000
and earnings per share is expected to be between $0.36 and $0.46.



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.



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



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. 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.



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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.



Fluctuations in quarterly results of operations due to seasonality, 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 some seasonality in demand for its products, due to its customers purchasing cycles, 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 uses fixed-term license agreements as a standard business practice. These
multi-year, multi-element term license agreements are typically three years in length, with customers the Company believes are credit-worthy, 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.



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 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.



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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.



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.



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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.



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. 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;
| | - |  | ----------------------------------------------------------------------------



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| |  |  | 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.



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
the Companys revenues from customers outside the United States and approximately one-third of the Companys expenses are generated outside of 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



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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.



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.



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



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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 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 March 31, 2005, the Company had $291.4 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 March 31, 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 |        | Average Fixed Interest Rate |     
|Cash equivalents  fixed rate                                                               |  | $               | 32,405 |                             | 2.67 | %
|Short-term investments  fixed rate                                                         |  |                 | 35,188 |                             | 2.92 | %
|                                                                                            |  |                 |        |                             |      |  
|Total fixed rate interest bearing instruments                                               |  | $               | 67,593 |                             | 2.80 | %
|                                                                                            |  |                 |        |                             |      |  



The Company had convertible
subordinated notes of $171,500 outstanding with a fixed interest rate of 6 7/8% at March 31, 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 March 31, 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 March 31, 2005, the Company had a three-year revolving credit facility, which terminates on July 14, 2006, which allows the Company to borrow up to $100,000. Under
this facility, the Company has the option to pay interest based on LIBOR plus a spread of between 1.25% and 2.00% or prime plus a spread of between 0% and 0.75%, 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 0.35% and 0.50% 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 March 31, 2005.



The
Company had other long-term notes payable of $7,889 and short-term borrowings of $1,975 outstanding at March 31, 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 $99.



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 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.



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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. As of March 31, 2005, the Company had options outstanding to sell Japanese yen with
contract values totaling $42,210 at a weighted average contract rate of 106.61 and had options outstanding to buy the Euro with contract values totaling $32,600 at a weighted average contract rate of 1.34.



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 March 31, 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:     |  |                 |         |                               |        |                   |    
|Euro                   |  | $               | 74,045  |                               | 1.32   |                   | USD
|Japanese yen           |  |                 | 57,152  |                               | 104.18 |                   | JPY
|British pound sterling |  |                 | 20,096  |                               | 1.92   |                   | USD
|Indian rupee           |  |                 | 6,044   |                               | 43.71  |                   | INR
|Canadian dollar        |  |                 | 5,716   |                               | 1.20   |                   | CAD
|Taiwan dollar          |  |                 | 3,748   |                               | 31.00  |                   | TWD
|Other                  |  |                 | 6,674   |                               |       |                   |    
|                       |  |                 |         |                               |        |                   |    
|Total                  |  | $               | 173,475 |                               |        |                   |    
|                       |  |                 |         |                               |        |                   |    



|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 as of
the end of the period covered by this report.



(2) Changes in Internal
Controls Over Financial Reporting



Management of the Company is
responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934. The Companys internal control over financial reporting is
designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.



Because of its inherent limitations, internal control over financial reporting may not
prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become



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inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.



As reported in the Companys Annual Report on Form 10-K for the fiscal year ended
December 31, 2004, a material weakness was identified in the Companys internal control over financial reporting related to the calculation of the Companys income tax provision. During the quarter ended March 31, 2005, the Company has
taken action to correct the material weakness in internal control over financial reporting by (i) adding review procedures to ensure completion of the steps identified by the Companys detailed income tax calculation checklist prior completion
of the income tax provision, (ii) providing personnel with access to additional training on SFAS No. 109, Accounting for Income Taxes and (iii) engaging an independent accounting firm to review its income tax accounting on a quarterly
and annual basis, prior to the review or audit of the Companys financial statements by the Companys independent auditors.



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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: May 10, 2005 |  |  |  | MENTOR GRAPHICS CORPORATION (Registrant)
|                    |  | 
|                    |  |  |  | /s/ Gregory K. Hinckley                 
|                    |  |  |  | Gregory K. Hinckley                     
|                    |  |  |  | President                               



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