Constructeo Partners with Commerce One and Microsoft to Build Leading European E-Marketplace for the Construction Industry

Cap Gemini Ernst & Young to provide consulting and technology integration support.

Paris, November 18 - Constructeo today announced the signing of definitive agreements with Commerce One Inc. (NASDAQ: CMRC), Microsoft (Nasdaq :MSFT), and Alexsys to power its e-marketplace for the European construction industry. Cap Gemini Ernst & Young assists in the conception and the implementation of the platform.

Constructeo is a leading vertical service provider for the European engineering and construction industry. Its open technology platform delivers integrated services including an industry focused information portal, online project management and e-commerce capabilities. These services will help customers collaborate seamlessly, manage core business processes and improve profitability.

Currently 17 major clients, working on construction projects with a value in excess of 1 billion Euros, are utilising Constructeo’s online project management services. These Constructeo customers include LD-Com, SOCATOP, and Caisse des Dépôts et Consignations.

Constructeo is the only vertical service provider in the construction sector to have won the backing of numerous industry leaders including Group Vinci, which alone has sales in excess of 17 billion Euros (14.8 billion USD) for 2000.

Services availability

As a one-stop shop via the Internet, Constructeo offers the following suite of products to address the complex nature of the construction industry:

• Information portal: all the information necessary to successfully carry out a construction project, including key information on the construction industry; internal information linked to each project; technical databases; fiscal, administrative and legal information; discussion forums and relations with professional organisations.
• Online project management: Web-based work zones to help manage projects on a day-to-day basis. Constructeo’s highly flexible project management tool enables all authorised parties to read, review and amend construction site documentation, as well as accessing comprehensive reports of work in progress, planning and reporting.
• E-commerce: Constructeo’s e-commerce tools are designed to address the requirements of purchasing transactions in a secure, online environment that significantly reduces the time and cost associated with such transactions (access to large pool of suppliers, online product catalogue, request for information and for quotation, secured online ordering).

It is expected that this agreement with powerful partners like Commerce One, Microsoft and Cap Gemini Ernst & Young will help ensure that Constructeo’s key e-commerce features will be made progressively available during the course of 2001.

Bertrand Dumazy, chairman of the board, Constructeo.com explained: "Our aim is to provide an open technology platform incorporating value-added services, designed for and by construction professionals. Constructeo plans to offer efficient project management and collaborative tools, information transparency, improved procurement and logistics across the industry, as well as first-class support and superior technical solutions, which is why we have chosen Commerce One, Microsoft and Cap Gemini Ernst and Young as our partners."

Mark Hoffman, chairman and CEO of Commerce One said: "Alongside Microsoft and Cap Gemini Ernst & Young, Commerce One is delighted to deliver an industry leading e-marketplace infrastructure solution for Constructeo. We believe the combination of our global vision and strong product portfolio will help enable Constructeo to deliver a powerful e-marketplace for the construction industry."

Steve Ballmer, president and CEO of Microsoft commented: "Constructeo is a great example of how technology can be used to shape services benefiting an industry and all of its particular demands. Our contribution is to provide the technology, but ultimately what we and our partners are doing is giving the construction industry greater speed and agility in the way it does business. This will help customers compete more easily and effectively."

In this project, Cap Gemini Ernst & Young has signed a memorandum of understanding to help Constructeo in the conception and the implementation of the platform, bringing their international expertise, acquired through several marketplace projects in different economic areas. André Cichowlas, CTO "B to B" Market Place, Cap Gemini Ernst & Young specified: " Constructeo's added value lays not only on its technological specification but on an ambitious business model: marketplace, portal, online project management tool all at one Internet destination. This unique mix gives Constructeo competitive advantage in its field. On a longer term, our Group will continue to back up Constructeo, with its outsourcing services, to ensure maximum facility of use and system reliability."

About Constructeo

Designed with the support of major players in the construction industry and developing partnerships with other key actors, Constructeo aims to provide a comprehensive technology platform. It offers a range of online services such as project management tools, e-commerce facilities, as well as technical and professional information. Created in May 2000, Constructeo relies on the support of a number of prestigious partners, leaders in their sector, including the following ones:

• Vinci, leading construction company in Europe and worldwide
• Masaï Consulting, a consulting firm specialised in purchasing / procurement / supply chain optimisation
• Coteba Management, a leading design office which have launched the first project management tool in France in 1990
• Bureau Veritas, a leading player in the area of conformity assessment and trust management for Internet B2B market places.
  

www.constructeo.com

About Commerce One

Commerce One (NASDAQ: CMRC) is the leader in global e-commerce solutions for business. Through its products and services, Commerce One creates access to worldwide markets, allowing anyone to buy from anyone, anytime, anywhere. The Commerce One Global Trading Web™ is the world's largest business-to-business trading community. Comprised of many open e-marketplaces, the Global Trading Web provides unprecedented economies of scale for buying organizations, suppliers, and service providers worldwide. Through its alliance with SAP AG and SAPMarkets, Commerce One enables enterprises and communities of all sizes and industries to efficiently conduct collaborative business on the Internet. Commerce One can be reached by phone at its Pleasanton, Calif. headquarters at (800) 308-3838 or (925) 520-6000; or in Europe at +44 1753 483000; or in Asia at +852 2251 1939; or via the Internet at www.commerceone.com.

About Microsoft

Founded in 1975, Microsoft (Nasdaq "MSFT") is the worldwide leader in software, services and Internet technologies for personal and business computing. The company offers a wide range of products and services designed to empower people through great software -- any time, any place and on any device.

www.microsoft.com

About Cap Gemini Ernst & Young

Cap Gemini Ernst & Young is one of the largest management and IT consulting firms in the world. The company offers management and IT consulting services, systems integration, and technology development, design and outsourcing capabilities on a global scale to help traditional businesses and "dot companies" continue to implement growth strategies and leverage technology in the new economy. The organization employs more than 58,000 people worldwide and reports global revenues of about 7.7 billion euros (1999 pro forma).

More information about individual service lines, offices and research is available at

www.cgey.com

About Alexsys

For nearly a decade, Alexsys has been at the very forefront of the implementation of new technologies for commerce, physical distribution, logistics and supply chain management. In these fields Alexsys offers integrated solutions for process transformation, based on consulting and audit, tailor-made development and implementation of SAP/Commerce One,

e-commerce, business to business procurement, Customer Relationship Management and Supply Chain Management solutions.

www.alexsys.be

Commerce One Forward-Looking Statements

The foregoing paragraphs include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements include statements concerning Commerce One's commitment to and expectations regarding Constructeo, including Commerce One's efforts to assist Constructeo members, suppliers and service providers in moving their business commerce onto the World Wide Web, projections regarding number of end-users, catalogues and sites, and the expected benefits, including an open B2B infrastructure and solution, improved efficiency and increased reach and speed. Actual results may differ materially from those described in such statements as a result of a number of factors. These factors include, but are not limited to, the risk that Constructeo may not perform with the ease and effectiveness that is expected, the extent of use of such e-marketplace by Constructeo’s suppliers and service providers, actual efficiencies and economies of scale may not be as pronounced as those anticipated by the parties, unexpected operational difficulties, fluctuations in operating results, the cooperation of the parties, general economic conditions, and intense and increasing competition in the market. For a discussion of these and other risk factors that could affect Commerce One's business, see "Risk Factors" in Commerce One's filings with the Securities and Exchange Commission, including its annual report on Form 10-K for the year ended December 31, 1999 and its quarterly report on Form 10-Q for the quarter ended September 30, 2000.