Segment Disclosure

6 Months Ended

Apr. 30, 2011

Note 12. Segment Disclosure

ASC 280, Segment Reporting, requires disclosures of certain information regarding operating segments, products and services, geographic areas of operation and major customers. Segment reporting is based upon the "management approach," i.e., how management organizes the Company's operating segments for which separate financial information is (1) available and (2) evaluated regularly by the Chief Operating Decision Maker (CODM) in deciding how to allocate resources and in assessing performance. The Company's CODMs are the Company's Chief Executive Officer and Chief Operating Officer.

The Company provides software and hardware products and consulting services in the EDA industry. The Company operates in a single segment. In making operating decisions, the CODMs primarily consider consolidated financial information, accompanied by disaggregated information about revenues by geographic region. Specifically, the CODMs consider where individual "seats" or licenses to the Company's products are used in allocating revenue to particular geographic areas. Revenue is defined as revenues from external customers. Goodwill is not allocated since the Company operates in one reportable operating segment.

The following table presents the revenues related to operations by geographic areas:


	Three Months Ended April 30,				Six Months Ended April 30,
	2011		2010		2011		2010
	(in thousands)
Revenue:
United States	$	182,615	$	163,282	$	349,315	$	323,272
Europe		50,133		47,462		99,462		91,237
Japan		71,698		61,912		138,299		126,243
Asia-Pacific and other		89,224		65,450		171,238		127,521

Consolidated	$	393,670	$	338,106	$	758,314	$	668,273

Geographic revenue data for multi-region, multi-product transactions reflect internal allocations and is therefore subject to certain assumptions and to the Company's methodology.

One customer accounted for 10.1% and 10.7% of the Company's consolidated revenue for the three months ended April 30, 2011 and 2010, respectively and one customer accounted for 10.5% and 10.9% of the Company's consolidated revenue for the six months ended April 30, 2011 and 2010, respectively.