This figure shows a 10.1.3.2 middle tier that contains Oracle WebCenter Framework. The Oracle home contains the following OC4J instances:

• home

  This OC4J instance contains Application Server Control. It also runs WebCenter applications and Oracle Metadata Services. Jazn-xml and the system-jazn-data.xml file are on this instance.

• OC4J_WebCenter

  This OC4J instance contains the portlet container and portlet producers.

Each OC4J instance has its own HTTP Listener.