PRESS RELEASE

Contact Information

Raining Data Corporation
25A Technology Drive
Irvine, CA 92618
Phone: (949) 442-4400
Fax: (949) 250-8187

Marketing/Press Contact:
Ajay Ramachandran, Vice President,
CTO and General Manager – Enterprise Application Group
ajay.ramachandran@rainingdata.com

Raining Data Announces XML-Centric Asset Tracking Application Suite
and RFID Data Management Server

IRVINE, CA. - May 1, 2006

• Sun Microsystems Partners with Raining Data to Include its Asset Tracking Application Suite and RFID Data Management Server in Sun’s RFID Industry Solution for Physical Asset Tracking

Raining Data Corporation (NASDAQ: RDTA), a leading data management software company that enables agile and real-time business solutions, announced today its Asset Tracking Application Suite and RFID Data Management Server powered by TigerLogic® XDMS – a flexible, XML-centric technology platform that provides easy interoperability and data linking for advanced business intelligence and change management.

This comprehensive Asset Tracking Solution can be used to track, within or across enterprises, any type of asset including people, parts, computers, industrial equipment, reusable transport items, vehicles, inventory, hazardous materials, munitions, media and documents. Raining Data’s Asset Tracking Solution supports industry-specific requirements including healthcare, pharmaceuticals, transportation and logistics, documents and media, banking and finance and can be deployed in either barcode and/or RFID-enabled environments.

The Raining Data Difference
There are many asset tracking solutions currently available on the market and these relational-centric systems have limitations, which include rigid data models, inflexible business processes and brittle deployment architectures. The Raining Data Asset Tracking Application Suite is a flexible and interoperable, XML-centric and SOA-centric application that addresses these limitations by offering real-time flexible data, customizable business processes, and dynamic composite applications that support a wide variety of barcode, RFID and sensor data to track assets. This comprehensive Asset Tracking Solution can plug into and interoperate with existing EAI, database and security infrastructures within the enterprises. In addition, the Raining Data Asset Tracking Application Suite offers lower Total Cost of Ownership (TCO) than relational-centric based solutions due to:

• Less Server Hardware Required than Relational-Centric Systems
• Fewer Processor Database Licenses than Relational-Centric Systems
• Faster Implementation – Quicker and Easier Installation
• Less Programming and Testing Time (i.e. Cost) to Respond to Changing of Business Needs

Sun Microsystems and Raining Data Products Partnership
Sun Microsystems, a leading provider of enterprise information technologies, has chosen to jointly market and integrate with Raining Data’s technologies to help meet its customer’s needs. The combination of Sun Microsystems’ Java Composite Application Platform Suite, Java System RFID Software, Java Identity Management Suite and Registry with Raining Data’s TigerLogic RFID Data Management Server provides the total infrastructure to provide enterprises with a comprehensive, flexible and interoperable solution that enables real-time visibility and tracking of assets. In addition, the Java Composite Application Platform Suite extends the Raining Data Asset Tracking Application Suite by providing enterprises with an advanced toolset and platform to develop custom composite applications that leverage barcode, RFID and sensor data.

“Raining Data has enabled us to quickly offer a comprehensive asset tracking solution that empowers our customers to improve asset utilization, reduce errors, and achieve regulatory compliance. Furthermore, the solution allows enterprises to integrate RFID data with their business processes and applications using the Sun Java Composite Application Platform Suite,” said Vivek Khandelwal, Principal RFID Solutions Manager, Sun Microsystems.

Raining Data will demonstrate its Asset Tracking Application Suite and RFID Data Management Server as part of the Sun RFID Industry Solution for Physical Asset Tracking at RFID Journal Live, May 1-3, 2006, Las Vegas, NV and at Sun‘s Horizons 2006 – SOA & Composite Applications Summit – May 16-18, 2006, San Francisco, CA.

About Raining Data

Raining Data Corporation (Nasdaq: RDTA), headquartered in Irvine, California, offers enterprise-grade data management, information aggregation and business application solutions and has been providing reliable data management and rapid application deployment solutions for end users, ISVs and developers of database applications for more than three decades.

Raining Data’s installed customer base includes more than 500,000 active users representing over 20,000 customer sites worldwide, with a significant base of diverse vertical applications. With more than 160 employees and contractors in five countries, Raining Data offers 24x7 customer support and maintains a strong international presence. More information about Raining Data Corporation and its products can be found at www.rainingdata.com.

###

Raining Data, Pick, mvDesigner, D³, mvEnterprise, mvBase, Omnis, Omnis Studio and TigerLogic are trademarks of Raining Data Corporation. All other trademarks and registered trademarks are properties of their respective owners.