**Exhibit31.1**

 

**CERTIFICATIONS**

 

Ladies andGentlemen:

 

I, Joseph K. Krivickas,Chief Executive Officer of the Company, hereby certify that:

 

1.                                       I have reviewedthis quarterly report on Form 10-Q of Segue Software, Inc.;

 

2.                                       Based on myknowledge, this quarterly report does not contain any untrue statement of amaterial fact or omit to state a material fact necessary to make thatstatements made, in light of the circumstances under which such statements weremade, not misleading with respect to the period covered by this quarterlyreport;

 

3.                                       Based on myknowledge, the financial statements, and other financial information includedin this quarterly report, fairly present in all material respects the financialcondition, results of operations and cash flows of the registrant as of, andfor, the period presented in this quarterly report;

 

4.                                       Theregistrant’s other certifying officer and I are responsible for establishingand maintaining disclosure controls and procedures (as defined in Exchange ActRules 13a-14 and 15d-14) for the registrant and we have:

 

a)                                      designed suchdisclosure controls and procedures to ensure that material information relatingto the registrant, including its consolidated subsidiaries, is made known to usby others within those entities, particularly during the period in which thisquarterly report is being prepared;

b)                                     evaluated theeffectiveness of the registrant’s disclosure controls and procedures as ofSeptember 30, 2003 (the “Evaluation Date”); and

c)                                      presented inthis quarterly report our conclusions about the effectiveness of the disclosurecontrols and procedures based on our evaluation as of the Evaluation Date;

 

5.                                       Theregistrant’s other certifying officer and I have disclosed, based on our mostrecent evaluation, to the registrant’s auditors and the audit committee of theregistrant’s board of directors:

 

a)                                      all significantdeficiencies in the design or operation of internal controls which couldadversely affect the registrant’s ability to record, process, summarize andreport financial data and have identified for the registrant’s auditors anymaterial weaknesses in internal controls; and

b)                                     any fraud,whether or not material, that involves management or other employees who have asignificant role in the registrant’s internal controls; and

 

6.                                       Theregistrant’s other certifying officer and I have indicated in this quarterlyreport whether or not there were significant changes in internal controls or inother factors that could significantly affect internal controls subsequent tothe date of our most recent evaluation, including any corrective actions withregard to significant deficiencies and material weaknesses.

 

 
| Date:  November 13, 2003 | /s/ JOSEPH K. KRIVICKAS |                    |
|-------------------------------|-------------------------|-------------------------|
|                          | Name:                   | Joseph K. Krivickas     |
|                          | Title:                  | Chief Executive Officer |
|                               |                         |                         |  |

 

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