Paris, France and Herndon, VA, March 8, 2004 - InfoVista® (NASDAQ: IVTA - Nouveau Marché: FR0004031649), the leading global provider of Business Technology Intelligence (BTI) software solutions today announced that EXPAN, a pan-Asian chain of world-class data centres owned by SingTel, Asia's leading communications company, has selected InfoVista's solutions for service level management, capacity planning and problem resolution.

SingTel's EXPAN's services include the provision of co-location, bandwidth, IT-related operations and IT disaster recovery. "SingTel customers enjoy a high quality, integrated one-stop IT and network service that supports their mission-critical business operations on a regional basis," stated Mary Ong, Chief Executive Officer, Managed Hosting Services, SingTel.

Ms. Ong continued, "InfoVista enables EXPAN to offer our customers personalized dashboards, containing real-time views of service quality for our portfolio of IT services, including problem resolution and capacity planning functions."

"SingTel EXPAN is committed to deliver innovative, world-class services to its customers," stated Joe Bergera, Senior Vice President, Worldwide Marketing for InfoVista. "We are proud that EXPAN has embedded InfoVista's solutions for service level management, problem resolution, and capacity planning into its service offerings. With our approach to Business Technology Intelligence, InfoVista is uniquely able to help EXPAN deliver business-effective and cost-efficient IT services to its sophisticated customer base."

About SingTel EXPAN
EXPAN is a pan-Asian chain of data network centres, built upon SingTel's own network infrastructure that provides a world class, robust and secure hosting environment where customers can host their application and network systems, and have access to high-end technologies and data centre resources that can easily be scaled to their business needs. It enables multinationals, Internet and application service providers across Asia to outsource their entire communications networks and web-hosting needs to SingTel.

EXPAN services include the provision of co-location, bandwidth, IT-related operations and IT disaster recovery. In EXPAN's data centres, customers can enjoy 24x7 network monitoring, systems administration and maintenance, security services, data storage and administration, performance monitoring and fault management, problem resolution and technical support.

EXPAN is available from data centres in Australia, Hong Kong, Japan, Korea, Singapore and Taiwan. SingTel also offers hosting services through marketing alliances with partners in China, India, Indonesia, Malaysia, the Philippines, Thailand and the US.

About InfoVista
InfoVista is the global leader in Business Technology Intelligence (BTI). BTI provides timely, relevant and actionable insights to maximize the value of business technology. Our approach to BTI incorporates context-sensitive, pre-packaged solutions that generate breakthrough improvements in business effectiveness and IT efficiency. An interactive Portal provides personalized dashboards and views that enable stakeholders at every level in an organization to align decisions and actions with business priorities. Eighty percent of the world's largest service providers as ranked by Fortune®, as well as leading Global 2000 enterprises, have selected InfoVista to maximize the value of their business technology assets. Representative customers include Cable & Wireless, Cingular, Deutsche Telekom, SingTel, British Telecom, France Télécom, Wachovia Bank, Banques Populaires, Banque de France, Shell and BASF. InfoVista stock is traded on the NASDAQ (IVTA) and the Nouveau Marché (FR0004031649). For more information about the company, please visit www.infovista.com.

Cautionary Statement for Purposes of the "Safe Harbor" Provisions of the Private Securities Litigation Reform Act of 1995: Except for historical information contained herein, the matters discussed in this news release are "forward looking statements." These statements involve risks and uncertainties which could cause actual results to differ materially from those in such forward-looking statements; including, without limitation, risks and uncertainties arising from the rapid evolution of our markets, competition, market acceptance of our products, our dependence upon spending by the telecommunications industry and our ability to develop and protect new technologies. For a description of other factors which might affect our actual results, please see the "Risk Factors" section and other disclosures in InfoVista's public filings with the US Securities & Exchange Commission and French Commission des Opérations de Bourse. Readers of this news release are cautioned not to put undue reliance on any forward-looking statement. The Company undertakes no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

InfoVista is a registered trademark of InfoVista, S.A.