Art Technology Group's Dynamo Wins Editor's Choice Award for Best Application Server from Java Developer's Journal.

Business/Technology Editors

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Jan. 6, 2000

Art Technology Group, Inc. ("ATG") (NASDAQ:ARTG), announced today that its Dynamo(R) 4.5 Product Suite was recognized with an Editor's Choice Award for Best Java Application Server by Java Developer's Journal (JDJ). JDJ is an independent, vendor-neutral publication targeting Java development professionals. JDJ presented its Editor's Choice Awards during a ceremony held recently at the Java Business Conference in New York.

The JDJ Editor's Choice Awards is based on the judgment of the editors. JDJ editors judged 10 award categories to recognize the industry-leading products that provide business solutions with Java. Winners were acknowledged for the contributions they made in developing Java-based solutions that respond to and meet the increasing demands of technology. ATG's Dynamo was one of the first 100% Java application servers and today drives some of the largest and busiest e-commerce sites on the Web today. Dynamo-driven customers include 3M, BMG Music, Eve.com, Hilton Hotels, J. Crew, John Hancock Funds, Living.com, MTV/Nickelodeon, Peapod, Scudder Kemper Investments, Inc., Sony Online Entertainment and Sun Microsystems.

"We re-architected Dynamo in Java back in 1994 because we recognized that our customers would need a fast, seamless way to bring their businesses to the Web," said Joe Chung, chairman and CTO of ATG. "Dynamo's Java component architecture allows our customers to rapidly build highly personalized e-commerce applications that can be easily adapted to respond to changing market demands. This award is validation that we are delivering on our vision."

Dynamo is designed to provide enterprises with the platform and tools required to succeed in quickly developing, deploying, and running personalized Web applications. Through its open server architecture and support for industry standards, Dynamo brings together the vast number of existing systems and large volume of content. At the same time, it provides a robust platform for new development projects. Dynamo provides the system developer and application developer with the benefits of Java, including easy reuse and portability of JavaBean and Enterprise JavaBean components.

About Java Developer's Journal

Java Developer's Journal published by SYS-CON Publications, Inc., is the leading Java print publication for over three years with a print circulation higher than all other Java-specific publications combined. Java Developer's Journal is the premier independent, vendor-neutral publication serving the needs of the entire Java development community. JDJ offers timely, insightful coverage of the fast-moving developments occurring as a result of the global adoption of Java's multi platform, "write once, run anywhere" technology.

About Art Technology Group

Art Technology Group, Inc. ("ATG") (Nasdaq: ARTG) is a leading provider of Internet customer relationship management and electronic commerce products and services. ATG offers an integrated suite of Java application server-based products and services, as well as related application development, integration and support services. ATG's Dynamo(R) product suite enables Global 1000 enterprises, as well as new businesses using the Internet as their primary business channel, to understand, manage and build their online customer relationships and to more effectively market, sell and support their products and services over the Internet.

The Dynamo solution is designed to provide businesses with the core platform and software tools required to develop and deploy personalized, scalable and reliable e-commerce Web sites. Dynamo is licensed to over 100 customers including: 3M, BabyCenter, BellSouth, BMG Direct, Eastman-Kodak, Informix, John Hancock Funds, Inc., Network Solutions, Newbridge Networks, Scudder Kemper Investments, Sun Microsystems and TheStreet.com. The Company is headquartered in Cambridge, MA with additional locations throughout the U.S. and in Europe.

This press release contains forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. These statements involve known and unknown risks and uncertainties that may cause ATG's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Important risk factors affecting ATG's business generally may be found in ATG's prospectus and in its periodic reports and registration statements filed with the Securities and Exchange Commission. Risk factors related to the subject matter of this press release include the possibility that ATG products will not be based on Java in the future; that customers will encounter difficulties in implementing the Dynamo suite of software; unrealistic customer expectations; and the costs and risks associated with intellectual property infringement and litigation. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.