Active Software Delivers eBusiness Integration Solution to Teligent.

Business Editors/High-Tech Editors

SANTA CLARA, Calif.--(BUSINESS WIRE)--June 29, 2000

Communications Pioneer Selects ActiveWorks Integration System for

Faster Results

Active Software, Inc. (Nasdaq:ASWX), a leading provider of eBusiness infrastructure software products, today announced that Teligent, Inc. (Nasdaq:TGNT), a global leader in broadband communications, has selected Active Software's ActiveWorks(TM) Integration System as its platform for eBusiness integration. Key benefits ActiveWorks offers Teligent include faster time-to-market for new products and services and improved customer retention.

"ActiveWorks will become an important component for our enterprise integration," said Marc Razeghi, Teligent Information Technology Vice President. "It will serve as a key element in Teligent's end-to-end eBusiness solution for the customer services we provide, helping us bring them to market more quickly and making them more effective in responding to customers' needs.

Teligent selected ActiveWorks to integrate a range of packaged eBusiness applications, including trouble ticketing, billing , sales automation, financials, and network inventory, network configuration and service provisioning systems. By integrating applications, ActiveWorks helps Teligent streamline operations and automate vital business processes.

The wide range of Active Software Intelligent Adapters -- which provide dynamic interfaces for integrating applications, databases, and mainframes -- significantly shortens development time.

"Telecommunications companies like Teligent are in a highly competitive, rapidly changing industry and have an immediate need to integrate critical front-office and back-office applications in order to better serve customers," said Jim Green, chairman and CEO, Active Software. "The ActiveWorks Integration System will enable Teligent to do that rapidly, and will serve as a scalable, flexible platform for Teligent eBusiness activities."

A Leading eBusiness Platform for Telecommunications

Factors including global deregulation and increased competition have made it imperative that telecommunications companies rapidly develop and deploy eBusiness capabilities to acquire and retain customers. Active Software has successfully delivered eBusiness integration solutions to more than two dozen leading global telecommunications companies, helping them quickly integrate mission-critical applications for such key functions as customer service and network administration.

About Teligent

Based in Vienna, Virginia, Teligent, Inc. (Nasdaq:TGNT) is a global leader in broadband communications offering business customers local, long distance, high-speed data and dedicated Internet services over its digital SmartWave(TM) local networks in 41 major markets throughout the United States. The company is working with international partners to extend its reach into Europe, Asia and Latin America. Teligent's offerings of regulated services are subject to all applicable regulatory and tariff approvals.

For more information, visit the Teligent website at: www.teligent.com

About Active Software, Inc.

Founded in 1995, Active Software, Inc., (Nasdaq:ASWX) is a leading provider of eBusiness infrastructure software products. Active Software's eBusiness platform, the ActiveWorks(TM) Integration System, automates end-to-end business processes within the enterprise. Active Software has approximately 200 customers in industries such as telecommunications, financial services, government, technology, utilities, distribution, manufacturing and transportation. Active Software is headquartered in Santa Clara, California. For more information, visit the company Web site at www.activesoftware.com.

Except for the historical information contained herein, the matters discussed in this news release are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. Potential risks and uncertainties include, without limitation, risks associated with the proposed acquisition of Active Software by webMethods, Inc., Active Software's limited operating history, potential fluctuations in operating results, the company's substantial dependence on its ActiveWorks software products, the company's need to expand its sales and distribution channels, and the uncertain market acceptance of eBusiness integration software products. These and other risk factors are described in detail in the Company's Form 10-K for the year ended December 31, 1999, Form 10-Q for the quarter ended March 31, 2000, and in its other filings with the Securities and Exchange Commission.

Note to Editors: The Active Software logo, Active Software and ActiveWorks, are trademarks or registered trademarks of Active Software Inc. All other trademarks mentioned herein are the property of their respective owners.