Invensys’ Wonderware and ArchestrA Business Units Launch ArchestrA Community Website

LAKE FOREST, Calif., Oct. 22, 2003 -- The Wonderware and ArchestrA business units of Invensys Systems, Inc. have launched the ArchestrA Community Website at www.ArchestrA.biz. The site is designed to serve as an applications aid and communication tool for people who are interested in leveraging ArchestrA technology. It also serves as a resource center for application engineers and product developers and a central repository for ArchestrA technical and application information.

The new website promotes the use and application of third-party and Invensys products that integrate with and build upon the ArchestrA software architecture, including FactorySuite A² (“A-squared”), I/A Series A² and more than 120 other third-party product lines.

“ArchestrA.biz is a focal point where customers, systems integrators, OEMs, independent software vendors and Invensys can all share technical information, application knowledge, and product details -- creating a virtual community of interest for offerings that leverage the ArchestrA software architecture,” said Mark Davidson, vice president of marketing for Invensys’ Wonderware and ArchestrA business units.

“This community site can greatly assist in the project design and engineering cycle by functioning as a central repository for ArchestrA application objects and as a bi-directional discussion forum for applications assistance and feedback into the ArchestrA technology development processes.”

ArchestrA.biz serves as an important communication forum for application engineers applying products that use ArchestrA technology, as well as product developers that build upon the technology. The website hosts five forums that facilitate communication regarding the use and implementation of ArchestrA technology with categories ranging from application development, technical support, industry topics, products and vendors. Users can post and edit new topics, and reply to postings in the ArchestrA forums to assist in applications and product development. Application consultants from the Wonderware and ArchestrA business units moderate these forums.

ArchestrA technology offers the industrial automation and information marketplace significant advances in “reusable engineering” by providing application engineers a plant-centric, modular approach to application development. Applications can be easily assembled from a library of standard, reusable components called objects without writing or compiling new code. In addition, lifecycle ownership costs are reduced due to built-in software distribution and management capabilities.

A key component of the new ArchestrA Community Website is the ArchestrA application object warehouse, an expanding resource of downloadable ArchestrA objects available today via shareware. In coming months, additional industrial application objects will be available for purchase. The ArchestrA application object warehouse is not just for Invensys products: Third parties are encouraged to submit their own object templates that are built on ArchestrA technology for review and inclusion in the warehouse.

In addition, ArchestrA.biz provides information on industry news and events. Users can access customer application stories, current news articles in industry trade publications and links to other Web sites offering additional information related to ArchestrA technology.

About Wonderware

Wonderware is an operating unit of the Production Management Division (PMD) of Invensys plc and is the world's leading supplier of industrial automation software. Founded in 1987, Wonderware pioneered the use of the Microsoft® Windows® operating system in human machine-interface (HMI) automation software for manufacturing operation systems. Wonderware powers intelligent plant decisions in real time.

Based in Lake Forest, Calif., Wonderware has regional sales and development offices throughout North America, Europe, Latin America and Asia to provide support to its network of more than 160 distributor offices. Wonderware has approximately 300,000 software licenses in approximately 100,000 plants worldwide, which is about 30 percent of the world’s 335,000 plants with 20 or more employees.

About Invensys

Invensys is a global leader in production technology. The group helps customers improve productivity, performance and profitability using innovative services and technologies and a deep understanding of their industries and applications.

Invensys Production Management works closely with customers to increase performance of production assets, maximize return on investment in production and data management technologies and remove cost and cash from the supply chain. The division includes APV, Avantis, Eurotherm, Foxboro, IMServ, SimSci-Esscor, Triconex and Wonderware. These businesses address process and batch industries -- including oil and gas, chemicals, power and utilities, food and beverage, and personal health care -- and the discrete and hybrid manufacturing sectors.

Invensys Rail Systems is a global leader in the design, manufacture, supply, installation, commissioning and maintenance of safety related rail signaling and control systems as well as a complete range of rail signaling and communications products. The business includes Westinghouse Rail Systems Limited (WRSL), Dimetronic Signals, Safetran Systems, Burco Services, Westinghouse Signals Australia and Foxboro Transportation. WRSL was recently awarded two contracts valued at more than £850m (US$1.3 billion) for the renewal of signaling on the London Underground.

Invensys also currently serves other market sectors through its Development Division. The businesses in this division are: Appliance Controls, APV Baker, Climate Controls, Hansen Transmissions, Lambda, Metering Systems and Powerware. Invensys is actively seeking to develop these businesses through equity partners or new owners.

Invensys operates in more than 60 countries, with its headquarters in London. For more information, visit www.invensys.com.

# # #

Invensys, Wonderware, ArchestrA, FactorySuite, FactorySuite A2, I/A Series, I/A Series A2, APV, Avantis, Burco, Dimetronic, Eurotherm, Foxboro, Hansen, IMServ, Lambda, Powerware, Safetran, SimSci-Esscor, Triconex and Westinghouse are trademarks of Invensys plc, its subsidiaries and affiliated companies. All other brands and product names may be the trademarks of their respective owners.