Cadence Design Systems (CDNS) 10-K/A 2015 FY Annual report (amended)

Exhibit 31.01

CERTIFICATIONS

I, Lip-Bu Tan, certify that:

1. I have reviewed this Annual Report on Form 10-K/A of Cadence Design Systems, Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

By:	/s/ Lip-Bu Tan
	Lip-Bu Tan
	President and Chief Executive Officer
	(Principal Executive Officer)

Date: July 10, 2015