Abington Memorial Hospital Successfully Activates Eclipsys' SunriseXA 3.3.

Business Editors/Health/Medical Writers

ABINGTON, Pa. & BOCA RATON, Fla.--(BUSINESS WIRE)--May 13, 2004

Live Performance Judged 'Tremendous'; Consistent with Results

Achieved in Independently Audited Tests

Eclipsys Corporation(R), The Outcomes Company(R), (Nasdaq:ECLP), today announced that Abington Memorial Hospital, Abington, PA, has successfully activated the company's SunriseXA(R) Release 3.3 advanced clinical software. Hospital officials report response times and stability that physicians have called "tremendous" and that meet the hospital's rigorous requirements for performance in a live environment. Abington's system performance is consistent with SunriseXA 3.3 test results that were recently audited by Aberdeen Group, an independent third party.

"We're extremely happy with the activation of SunriseXA 3.3 and its performance," said Alison L. Ferren, chief information officer for Abington Memorial Hospital. "Our physicians are finding that the system response times and stability of SunriseXA 3.3 are excellent, and that system performance is exceptional."

Keith Sweigard, MD, chief of internal medicine and physician liaison to the Hospital Information Systems department, agreed. "I had a physician call in from the floor during the middle of rounds to say how excellent the speed and performance of the system was. I can't remember when I received a totally unsolicited call like that. In my own personal experience, I was switching from one patient to another to check lab results, and the system worked so fast that I didn't notice that it had already changed patients. The speed of the system is simply tremendous."

Eclipsys recently commissioned Aberdeen Group, an independent research firm, to audit the benchmark testing of the SunriseXA 3.3 software. In its audit report the Aberdeen Group states, among other things, that "Eclipsys has successfully addressed response time issues identified with its SunriseXA product announced in 2003." The underlying benchmark testing was designed to simulate a hospital with 6,000 patients, which exceeds in size the largest hospitals in North America.

Ferren noted that: "SunriseXA 3.3 was implemented on schedule. We're looking forward to activating SunriseXA 3.5 in the fall of 2004 to receive the additional functionality that SunriseXA 3.5 will offer."

Abington Memorial upgraded to SunriseXA 3.3 from a 2002 version of the solution. SunriseXA 3.3 serves as the platform for Eclipsys' SunriseXA strategy.

SunriseXA 3.5 is a more extensive release of SunriseXA that will include significant additional functionality including ambulatory support, emergency department, clinical documentation, access management, structured notes, remote access services, medical necessity checking, prescription writer, and medication management configuration. SunriseXA 3.5 is slated for general availability in June 2004.

"Based on performance test results to date of SunriseXA 3.5, we believe that it, like Release 3.3, will also exceed the stringent performance requirements of our customers," said John Gomez, Eclipsys' chief technology officer.

About Abington Memorial Hospital

Abington Memorial Hospital is a 508-bed community teaching hospital that provides a complete range of healthcare services to residents of Bucks, Montgomery and Philadelphia counties in Pennsylvania. In March 2004, Abington Memorial Hospital's Stroke Center was recognized with the Gold Seal of Approval and has achieved Disease-Specific Care Certification from the Joint Commission on Accreditation of Healthcare Organizations. Abington Memorial is the first such hospital in Pennsylvania to earn this distinction. In September 2003, Abington Memorial achieved Magnet status from the American Nurses Credentialing Center. For details on such accreditation, please visit Abington Memorial's Web site at www.amh.org.

About Eclipsys

Eclipsys is a leading provider of advanced clinical, financial and management information software and service solutions to more than 1,500 healthcare facilities. Eclipsys empowers healthcare organizations to improve patient safety, revenue cycle management and operational efficiency through innovative information solutions. For more information, see www.eclipsys.com or e-mail [e-mail].

Statements in this news release concerning future results, performance or expectations are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. All forward-looking statements included in this document are based upon information available to Eclipsys as of the date hereof and Eclipsys assumes no obligation to update any such forward-looking statements. Because such statements involve risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. These risks include several risks in connection with our SunriseXA strategy, including the uncertainty of the time and costs required to implement the strategy, the potential that our strategy could change, the potential that we may encounter technical difficulties in implementing our strategy, and the potential that the changes to our products may affect customer demand. Other risks include potential financial constraints and other factors faced by the healthcare industry, changing customer requirements and other risks described in the filings of Eclipsys with the Securities and Exchange Commission, including its annual report on Form 10-K for the year ended December 31, 2003. Eclipsys, Eclipsys Corporation and The Outcomes Company are registered trademarks of Eclipsys Corporation. Sunrise and XA are trademarks of Eclipsys Technologies Corporation. Other product and company names in this news release are trademarks or registered trademarks of their respective companies.