NonStop Systems Introduction

Requirements of ZLE Systems
NonStop Systems Introduction—527825-001
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Support for Industry Standards
The challenge of integrating and providing services for these disparate systems is a
difficult one. The EAI layer of a ZLE system must be able to integrate all applications,
platforms, and databases in the enterprise; it must be able to cope with the variety of
systems within a business to enable them to communicate.
Support for Industry Standards
To preserve a company’s investment in business application systems, to take
advantage of the many existing application services, and to facilitate development of
new applications, a ZLE system must support current industry standards in:
•
Messaging middleware
•
Services and applications
•
Application integration frameworks
•
Standard component models
Messaging Middleware
A ZLE system must provide an efficient, reliable way to route information between the
operational applications and the ZLE hub to keep the data store synchronized with the
applications and the applications synchronized with each other. For example, a
customer address change might be communicated (via the ZLE hub) from a credit card
application on one system to eStore and gift registry applications on other systems.
Industry-standard messaging middleware products, such as Java Message Service
(JMS) and IBM MQ series, provide message routing services. These products provide
Figure 2-3. Application Integration
Local
data
Application
Local
data
Application
Local
data
Application
Data store
Integration
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