December 2002
Intermediate to advanced
178 pages
5h 1m
English
book
Geac System21 commerce.connect: Implementation on the IBM eServer iSeries Server
by Yessong Johng, Colin Brown, Jim Hirsch, John Lawler
Content preview from Geac System21 commerce.connect: Implementation on the IBM eServer iSeries Server
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Chapter 2. Architecture of the commerce.connect products 9
The EJB standard is a server-side Java-based component architecture for building multi-tier,
distributed, enterprise applications. WebSphere Application Server provides such services
as:
Authentication and security services: Are provided either via the host operating system
or through Lightweight Directory Access Protocol (LDAP).
Transaction management: Ensures integrity of data, not just within a single database,
but across the enterprise.
Resource pooling: Allows more efficient use of valuable system resources. This is
especially important in a large Internet deployment scenario, where there may be
thousands rather than tens of users apparently concurrently using the system.
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