Segue Hires Software Testing Market Veteran to Lead Sales

   John T. Sullivan Appointed as Senior Vice President, Worldwide
Sales

   Segue Software, Inc. (NASDAQ-CM: SEGU), a leader in Software
Quality Optimization(TM) (SQO(TM)), today announced that John T.
Sullivan has joined the company as Senior Vice President of Worldwide
Sales, effective October 17, 2005.
   "John's significant and applicable experience in software testing
sales brings a new level of intensity and focus to our organization,"
said Joseph Krivickas, president and chief executive officer. "It's a
privilege to bring in a sales chief who already has a proven track
record at accomplishing significant sales growth in our own market
segment. John brings invaluable experience to Segue because he knows
our market, he knows our competitors and he knows where Segue is best
suited to win. We are fortunate to be able to benefit from his past
successes."
   Mr. Sullivan, 42, brings more than 20 years of sales leadership
with start-up, as well as established, software companies. Most
notable was his term at Empirix Inc., a recognized name in the
software testing market. There, as VP of Sales, Mr. Sullivan led the
sales organization from its start-up stage as RSW Software, a Teradyne
(NYSE: TER) company, through the acquisition that formed Empirix. He
stayed with RSW Software and Empirix as VP of Sales for over five
years during which significant revenue growth occurred. Most recently,
Mr. Sullivan served as Vice President of Sales for Pedestal Software,
and continued in that role for Altiris, Inc. (NASDAQ-NM: ATRS) after
its acquisition of Pedestal in March 2005. Mr. Sullivan holds a BA
degree in Finance from Providence College.

   About Segue Software

   Segue Software, Inc. (NASDAQ-CM: SEGU) is a global expert in
delivering solutions to define, measure, manage and improve software
quality throughout the entire software application lifecycle. Segue's
Software Quality Optimization(TM) (SQO(TM)) solutions help companies
reduce business risk, ensure the deployment of high quality software
and increase return on investment. Leading businesses around the
world, including many of the Fortune 500, rely on Segue's innovative
Silk family of products to protect their business service levels,
competitive edge and brand reputation. Headquartered in Lexington,
Mass., with offices across North America and Europe, Segue can be
reached at [phone] or www.segue.com.

   Segue and the Segue logo are registered trademarks and Software
Quality Optimization and SQO are trademarks of Segue Software, Inc.
All other marks are the property of their respective owners.

   This press release may contain forward-looking statements, such as
our financial projections for 2005 and beyond. Forward-looking
statements are statements that contain predictions or projections of
future events or performance, and often contain words such as
"anticipates", "can", "estimates", "believe", "expects", "projects",
"will", "might", or other words indicating a statement about the
future. The Company notes that any such forward-looking statements are
subject to change and are not guarantees of future performance, and
that actual results may differ materially from any such predictions or
projections, based on various important factors and including, without
limitation, the ability of the Company to continue to achieve positive
cash flow and sustain profitability in this difficult economic and
business climate; the ability of the Company to close large enterprise
orders; the Company's transition to a new management team; the timing
and success of introductions of our new products; market acceptance of
recently-introduced products (including SilkCentral Test Manager 8.0)
and updated releases; the effectiveness of our additional distributors
and resellers; growth in license revenue; new products and
announcements from other companies; the Company's continued access to
capital; and changes in technology and industry standards. Additional
information on the factors that could affect the Company's business
and financial results is included in the Company's periodic reports
filed with the Securities and Exchange Commission.