PRESS RELEASE

SEEBEYOND AND RAINING DATA ALIGN TO GENERATE STANDARDS-BASED RFID SOLUTIONS FOR SUPPLY CHAIN COLLABORATION

Companies To Support Real-Time RFID Information Service

CHICAGO, IL, RFID Journal LIVE!, April 11, 2005 — SeeBeyond (Nasdaq: SBYN), provider of the world’s first fully integrated composite application network suite (SeeBeyond ICAN) for advanced integration and composite application solutions, and Raining Data (Nasdaq: RDTA), a leading XML Data Management, XQuery and Web Services technology provider, today announced an intent to enter into a strategic agreement whereby the two companies will team to provide solutions to manage and orchestrate the flow of data generated by Radio Frequency Identification (RFID) systems. As a part of the intended agreement, the companies intend to enable the integration of information from existing applications to generate standards-based collaboration among partners across the Supply Chain, powering the EPCglobal Information Service, EPC-IS.

As companies struggle to unlock the ROI around RFID initiatives, the realization of a best practices framework to enable real-time information sharing is becoming fundamental to any RFID project. This sharing of data not only encompasses the enterprise applications within the four walls of a corporation, but also the business processes that span the extended enterprise. The EPC-IS in the context of EPCglobal standards, is an important evolving component of any supply chain that needs to be able to share information with partners through an open standards framework.

As companies deploy this kind of infrastructure, the performance, extensibility, interoperability and ease of access will become important criteria when sharing high volumes of information. With the XML-based repository (TigerLogic XDMS) from Raining Data and the RFID Composite Application Network offering from SeeBeyond, customers and partners can take advantage of the standards-based Web Services and XQuery to aggregate information not previously accessible – delivering new efficiencies to help support accelerated ROI from RFID projects.

Together the companies will provide a standards-based technology platform which collects, manages and integrates RFID and sensor data with existing systems to enable composite applications such as: track and trace, product recall, advanced shipping and receiving reconciliation, and total inventory visibility.

“Organizations trying to unlock the ROI from RFID investments must be able to integrate this real-time data with existing systems to drive new ROI driven applications,” said Reed Henry, senior vice president of Business Development, Strategic Alliances and Marketing for SeeBeyond. “Partnering with a leading XML Data Management, XQuery and Web Services technology provider, such as Raining Data, enables our customers to leverage our ICAN suite and integrate real-time EPC/RFID data to drive new business application development.”

“We believe the intended alliance between Raining Data and SeeBeyond offers companies the most complete RFID platform today,” said Ajay Ramachandran, vice president of Enterprise Applications Group for Raining Data. “Combining XML Data Management, XQuery and Web Services with an integration platform, such as SeeBeyond ICAN, delivers the necessary components to drive new Supply Chain applications and fully take advantage of EPC/RFID data.”

SeeBeyond and Raining Data will be demonstrating a live EPC-IS application at RFID Journal LIVE! (Booth 111). In addition, as part of SeeBeyond’s RFID partner portfolio, Bent Systems will join the two companies at the conference to highlight the value of delivering next generation ROI-focused applications for RFID. For more information about RFID Journal LIVE! 2005, please visit www.rfidjournallive.com.

About Raining Data

Raining Data Corporation (Nasdaq: RDTA) has been providing reliable data management solutions for more than three decades. Product offerings include the high performance TigerLogic® XML Data Management Server, Pick® Universal Data Model based data management systems and .Net integration solutions. Raining Data’s EPC/RFID and Supply Chain business solutions utilize XML, XQuery and Web Services to enable companies to leverage their existing enterprise systems and incorporate EPC/RFID data and business processes seamlessly. Raining Data’s customer installed base includes more than 500,000 active users, representing over 20,000 customer sites worldwide with a significant base of diverse vertical applications. More information about Raining Data Corporation and its products can be found at www.rainingdata.com.

About SeeBeyond

With more than 15 years of software innovation and real-world experience in integrating systems across Global 2000 organizations, SeeBeyond (Nasdaq: SBYN) delivers the industry’s first integrated composite application network built on a comprehensive integration platform. The SeeBeyondÒ Integrated Composite Application Network Suite™ helps organizations rapidly assemble and deploy enterprise-scale end-user applications built on existing systems and infrastructure to dramatically improve business operations. SeeBeyond has approximately 2,000 customers worldwide, including Blue Cross Blue Shield of Massachusetts, BHP Billiton, The Cleveland Clinic, The Dial Corporation, DuPont, Florida Power & Light, Fluor Daniel, Fujitsu, General Motors, Halliburton, Hertz Corporation, HP, Lockheed Martin, Pfizer, Samsung and Sprint. For more information, please visit www.SeeBeyond.com.

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SeeBeyond is a registered trademark of SeeBeyond Technology Corporation in the United States and select foreign countries. SeeBeyond Integrated Composite Application Network Suite is a trademark of SeeBeyond Technology Corporation. The absence of a trademark from this list does not constitute a waiver of SeeBeyond Technology Corporation’s intellectual property rights concerning that trademark. All other brands or product names are trademarks of their respective owners.

This news release includes statements that are not historical in nature and as such are intended to be forward looking statements for purposes of the safe harbor provided by the Securities Litigation Reform Act. These statements, including those related to the intention of SeeBeyond and Raining Data to enter into an alliance as well as the success of SeeBeyond's intended relationship with Raining Data as well as the success of the jointly developed RFID solutions are statements based on SeeBeyond’s current expectations, assumptions, estimates and projections, its industry and its future prospects. These statements are predictions, and actual events and results may differ materially from those forward-looking statements based on certain risks, including market acceptance of SeeBeyond products and services as well as the joint RFID offerings with Raining Data. Additional risks include the intended alliance agreement not being finalized, potential release of competitive products, and the market acceptance of the jointly developed offerings among other factors. The forward-looking statements contained in this news release are also subject to other risks and uncertainties, including those more fully described in the Company’s filings with the Securities and Exchange Commission including its Annual Report filed on Form 10-K for the year ended December 31, 2004, and its quarterly reports on Form 10-Q. SeeBeyond does not undertake to update any forward-looking statements.

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