Exhibit 31.3

Certification of Chief Executive Officer

I, Harry Debes, certify that:

1.             I have reviewed this Amendment No. 1 to the annual report on Form 10-K of Lawson Software, Inc. (Amendment No. 1);

2.             Based on my knowledge, the Amendment No. 1 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;