SYBASE ANNOUNCES BREAKTHROUGH MOBILE AND MESSAGING TECHNOLOGY

Sybase's EMS Technology Extends Client/Server for the Distributed
Enterprise, Supporting Reliable, Anytime/Anywhere Access to Corporate
Data

DALLAS, TX, CA, May 16, 1995 -- Sybase, Inc., The Enterprise Client/Server
Company, today announced new capabilities and an integration strategy for
SYBASE Enterprise Messaging Services (EMS), Sybase's breakthrough
messaging technology for client/server computing. EMS provides reliable
anytime, anywhere access to corporate data via wired and wireless
networks, enabling businesses to support a truly distributed enterprise -
including the growing number of mobile users. Developed by Complex
Architectures, a Sybase Company acquired in February 1995, EMS has been
shipping for more than three years and is one of the industry's leading
messaging products available today.

Plans for EMS, and a demonstration of EMS utilizing ARDIS-based wireless
networking and TCP/IP protocols, were presented to more than 3,000
attendees at the Sybase International User Group Conference being held at
the Dallas Convention Center, May 15-18.

"Businesses are becoming more distributed, with nearly 70% of U.S. workers
already spending 20% of their time outside the office. That shift is
bringing new demands for flexible, reliable access to corporate
applications, no matter where an employee is working," said Dr. Robert S.
Epstein, executive vice president of Sybase. "With its industry-leading
server and interoperability products, Sybase has been at the forefront in
defining enterprise client/server computing. With the addition of EMS
messaging technology, Sybase is taking a lead in redefining client/server
computing to include support for the growing ranks of mobile corporate
users and a new level of communications reliability across the
enterprise."

SYBASE EMS Message-Based Software

EMS 3.1, shipping today, is a message-based communications management
environment that provides the industry's most comprehensive solution for
reliable, intelligent and cost-effective connectivity to a range of
platforms, over wired and wireless networks. EMS insulates corporate and
commercial programmers from the complexities of network communications,
allowing them to focus on business applications by simply writing to the
EMS API. EMS handles the underlying communications, providing transparent
bidirectional, asynchronous transfer of messages (data, transactions,
etc.) across a network. Key components of EMS include:

* EMS API interface providing applications access to EMS
  communications services.
* Event Manager, which manages routing and message queuing.
* Communications Manager, which formats the queued messages into
  packets for the Communications Agent chosen by the Event Manager.
* Communications Agents, which handle the data-link and physical-layer
  requirements of each network, protocol, device or communications
  facility.

SYBASE EMS Benefits

The comprehensive scope of the EMS message-based computing environment
provides customers with a suite of benefits that are critical to the
success of a truly distributed enterprise and are unavailable today from
any other single vendor. They include the ability to do cost-effective,
reliable communications across the network even when a system fails, and
support for both wired and wireless communications with a single
interface.

Intelligent Cost-effective Communications for Business Requirements

A key feature unique to the EMS 3.1 communication environment is its
Quality of Service (QOS) capability, which allows applications to request
class and quality of service. EMS accepts messages and dynamically
delivers them based on available network bandwidth and resources. This
provides customers a highly flexible and cost-effective means of matching
their computing processes to their business operations - for example
prioritizing the delivery of time-sensitive shipping data or deferring
bulk data transfers from expensive satellite communications.

Reliable Messaging for All Networks

EMS provides reliable messaging for all networks. Its store-and-forward
capabilities, adaptive routing, and other recovery mechanisms are designed
to ensure that messages are not lost in the event of a network or system
failure, or when a target platform is disconnected from the network.
Additionally EMS provides guaranteed delivery- through multi-network
routing and delivery and the ability to re-route around network connection
failures.

Optimized for Mobile Computing

EMS is optimized for mobile devices, providing a small footprint of 120-190
Kbytes to support the smallest Windows, Mac and DOS portables, as well as
DOS-based personal digital assistants (PDAs). Its store-and-forward
capabilities are designed to ensure that previously queued messages will
be transmitted to portable devices when they are connected to the network
via either wired or wireless communications. Additionally, EMS provides
support for directory and security services.

New EMS Versions

Sybase plans to introduce two enhanced versions of the EMS communications
environment in 1995. SYBASE EMS 3.2, will feature enhanced performance and
additional communication agents. SYBASE EMS 4.0 will include an embedded
authentication feature and support for symmetric multiprocessing (SMP),
additional public APIs, and support for more PDA operating systems and
networks. Planned ship dates are Q3 1995 for SYBASE EMS 3.2 and Q1 1996
for SYBASE EMS 4.0.

SYBASE Open Client and Open Server to Include Messaging

Over the next year, Sybase plans to build on the strengths of SYBASE EMS by
integrating the messaging technology into the Open Client and Open Server
APIs. The new, extended APIs will be designed to automatically manage both
the session-oriented communications common to corporate environments and
message-based networking, which is rapidly gaining acceptance. The
integration of SYBASE EMS messaging into Open Server also will enable
SYBASE Open Server-based products - such as Replication Server and
Enterprise CONNECT interoperability software- to operate on a common
message-based model.

The integration of messaging into Open Client and Open Server represents a
significant extension to the SYBASE Architecture, since these APIs are the
foundation of every SYBASE product. Through the extended SYBASE
Architecture, Sybase expects that users will be empowered to develop a new
breed of client/server applications that reflect their business operations
.

Pricing and Availability

EMS 3.1 is available today. Pricing for the product starts at $495 for
two-node licenses for DOS, Windows and the Macintosh, and $2,500 for a
single-node license for a UNIX platform. SYBASE EMS versions 3.2 and 4.0
will be rolled out in Q3 1995 and Q1 1996, respectively. Extended Open
Client and Extended Open Server APIs are scheduled to be available in Q2
1996. Pricing for SYBASE EMS 3.2, SYBASE EMS 4.0, and the extended APIs
will be announced at the time of their availability.

Sybase, Inc.

Sybase, Inc. is a worldwide leader in client/server software. Sybase is
focused in the four major client/server categories: databases, tools,
database systems management, and interoperability, providing desktop to
enterprise scalability. The company's mission is to provide its customers
with an open, adaptable information systems architecture that enables
rapid business change. Headquartered in Emeryville, CA, Sybase is the
seventh largest independent software company in the world.

Sybase Inc
6475 Christie Ave
Emeryville, CA 04608
510-596-3500;  Fax: 510-658-9441

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