Java ES Infrastructure Service Components

Java ES components implement the distributed infrastructure service levels shown in Figure 2–2. The positioning of system service components within the different levels is shown in the following figure.

Figure 2–3 Java ES System Service Components

The shaded boxes in the figure indicate components that are not included in Java ES. User collaboration components are not part of Java ES but are often deployed with Java ES components and used within Java ES architectures. These components are part of the Sun Java Communications Suite and are referenced in this document for illustrative purposes only. Also, operating system platforms are not formally part of Java ES, but are included to show the operating system platforms on which Java ES components are supported.