Enterprise Communications Scenario

Businesses commonly need to support communication among their employees, specifically email and calendar services. Such businesses find it advantageous for their employees to have personalized access to internal web sites and other resources based on enterprise-wide authentication and authorization services. In addition, these businesses want employee identity to be tracked across all enterprise services, so that a single web sign-on provides access to all such services.

These specific business requirements, which represent only an example set of business requirements, are summarized in the following table.

Table 2–4 Business Requirements Summary: Communications Scenario

Business Requirement	Description	Java ES Services Needed
Single sign-on	Access to secure enterprise resources and services based on a single identity with single sign-on for web access.	Identity services
Messaging  Calendar	Email messaging between employees and with outside world.  Electronic employee calendaring and meeting arrangements.	Communication and Collaboration services
Portal access	Single, web-based, personalized access point to communication services such as email and calendar as well as internal web pages.	Portal services

In addition, an enterprise has requirements concerning the performance, availability, network security, and scalability of the software system that provides these services.