EAI may involve developing a new total view of an enterprise's business and its
applications, seeing how existing applications fit into the new view, and then
devising ways to efficiently reuse what already exists while adding new
applications and data.
The J2EE Connector architecture defines a standard architecture for
connecting the J2EE platform . The J2EE Connector architecture provides a Java solution to the problem
of connectivity between the many application servers and EIS already in
existence. By using the J2EE Connector architecture, EIS vendors no longer need to
customize their product for each application server.