Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2012

Estimated Useful Life of Property and Equipment

Depreciation and amortization charges are calculated using the straight-line method over the following estimated useful lives:

	Estimated Useful Life
Data processing equipment and software	3 years
Office furniture and equipment	3 to 7 years
Leasehold improvements	Shorter of estimated useful life or lease term

Estimated Useful Life of Definite-Lived Intangible Assets

We amortize our finite-lived intangible assets which result from our acquisitions using the straight-line method over the following estimated useful lives:

	Estimated Useful Life
Completed technology	4 to 6 years
Customer contracts and relationships	5 to 15 years
Trade names	1 to 5 years