MatrixOne Receives Top Marks in Apparel Magazine's Software Scorecard; MatrixOne Grabs Number One Position for Ease of Integrat

MatrixOne, Inc. (NASDAQ: MONE), a leading provider of
collaborative product lifecycle management (PLM) solutions for the
value chain(TM), today announced that it received high marks in seven
categories, including the top score for "ease of integration," in
Apparel magazine's Software Scorecard.
   With this inaugural special report, Apparel delivers rankings of
key software vendors that are active in the apparel market to help
raise companies' awareness of vendors that are serving the apparel
marketplace. Released in the May issue of Apparel, the ranking
includes 38 software vendors who qualified to be listed.
   In addition to being ranked number one for ease of integration,
MatrixOne also made the top 10 list in the following categories:
strategic value; ease of upgrading; ease of
administration/maintenance; user friendliness; design and product
development functionality; and long-term vision.
   "This is an industry with a very unique set of business challenges
and companies such as MatrixOne have a track record of delivering
apparel-specific business solutions to this market," said Kathleen
DesMarteau, editor-in-chief of Apparel. "The Software Scorecard
rankings came straight from those companies who are experienced in
working with apparel software vendors, so the results are a huge
testament to the excellence that MatrixOne has delivered with its
apparel accelerator."
   The MatrixOne Accelerator for Apparel Design and Development(TM)
is a comprehensive, commercially available solution that provides
apparel industry data models and schema, pre-defined work processes
and reports, as well as role-based user interfaces to speed deployment
and ease user adoption. This solution is built on top of MatrixOne's
industry leading PLM platform and business process applications to
provide scalability, performance and the flexibility to keep pace with
the ever-quickening pace of business.
   The MatrixOne apparel industry solution offers broad and robust
library management capabilities for organizing information such as
colors, fabrics, trim, build instructions and other key elements to
assist in reuse, standardization, collaboration and access control
across the extended enterprise. In addition, capabilities for product
design and planning, product costing and strategic sourcing are
included to encompass all aspects of the apparel design, development
and production lifecycle.
   "In order to respond to market pressures such as increased global
competition, shrinking product lifecycles, and customers'
ever-changing seasonal demands, apparel companies need a PLM
environment that will get them up and running quickly," said Kurt
Andersen, vice president of industry solutions for MatrixOne. "We're
especially proud of our number one ranking for ease of integration
because bringing together many business-critical software systems is
typically a daunting task. With the MatrixOne Accelerator for Apparel
Design and Development, our customers are able to rapidly implement a
PLM solution that generates real business value."

   About Apparel's Software Scorecard

   Apparel magazine's Software Scorecard is the first software
ranking providing a head-to-head comparison of the top software
vendors specific to the apparel/retail industry. Based on votes from
executives responsible for IT decisions, the Scorecard ranks vendors
on a combination of Customer Satisfaction and Breadth and Scope of
Apparel Solutions and Business, with Customer Satisfaction weighted at
60 percent. The 12 key metrics that executives evaluate as part of
Customer Satisfaction are: 1) overall performance, 2) understanding of
apparel-specific business issues, 3) ROI, 4) strategic value, 5) ease
of upgrading, 6) ease of installation, 7) ease of integration, 8) ease
of administration/maintenance, 9) quality of support, 10) quality of
service, 11) user friendliness and 12) long-term vision. A vendor's
final ranking on Apparel's Software Scorecard is based on the sum of
its Software Vendor Survey points and the average total points it
receives from Software Customer Satisfaction Survey respondents.

   About Apparel

   Apparel magazine offers technology and business insight from
concept to consumer, providing competitive, actionable information to
executives representing the world's most successful apparel brands,
retailers and manufacturers. Its targeted content addresses Retail
Intelligence, Supply Chain, Sourcing & Logistics, Concept-to-Spec and
Fiber-to-Fabric. An Edgell Communications publication, Apparel also
produces the Apparel Executive Forum, Apparel's Tech Conference,
Apparel Sourcing Expo-Asia, numerous web seminars, the Apparel
e-Newsletter and apparelmag.com

   About MatrixOne, Inc.

   MatrixOne, Inc. (NASDAQ: MONE), a leading global provider of
collaborative product lifecycle management (PLM) software and
services, enables companies to accelerate product innovation to
achieve top line revenue growth and improve bottom line profitability.
With world-class PLM solutions and a commitment to customer success,
MatrixOne is focused on helping companies across the automotive,
aerospace & defense, consumer, machinery, medical device,
semiconductor and high-tech industries solve their most challenging
new product development and introduction problems. More than 850
companies use MatrixOne's solutions to drive business value and gain a
competitive advantage, including industry leaders such as BAE Systems,
Bosch, Comau, General Electric, Honda, Johnson Controls, Linde AG,
NCR, New Balance, Nokia, Philips, Porsche, Procter & Gamble, REI, Sony
Ericsson, STMicroelectronics and Toshiba. MatrixOne
(www.matrixone.com) is headquartered in Westford, Massachusetts, with
locations throughout North America, Europe and Asia-Pacific. On March
1, 2006, Dassault Systemes entered into a definitive agreement to
acquire MatrixOne, Inc., subject to customary closing conditions.

   MatrixOne and the MatrixOne logo are registered trademarks and "a
leading provider of collaborative product lifecycle management (PLM)
solutions for the value chain" and the MatrixOne Accelerator for
Apparel Design and Development are trademarks of MatrixOne, Inc. All
other trademarks and service marks are the property of their
respective owners.

   Forward-looking statements in this release are subject to risks
and uncertainties that could cause our actual results to differ
materially from those anticipated. Such statements may relate, among
other things, to our plans, objectives and expected financial and
operating results. The risks and uncertainties that may affect
forward-looking statements include, among others: poor product sales,
long sales cycles, difficulty developing new products, and difficulty
in relationships with vendors and partners, higher risk in
international operations, difficulty assimilating future acquisitions,
difficulty managing rapid growth, and increased competition. For more
about the risks and uncertainties of our business, see our periodic
and other S.E.C. filings.