The image shows a box labeled BPEL Process service component on the left. This box has incoming and outgoing arrows on its right side that connect to a box labeled Workflow Services. This box includes the following subboxes: Task Metadata Service, Evidence Store Service, User Metadata Service, Identity Service, Task Service, Task Query Service, Task Assignment Service, and Notification Service. An incoming arrow on the right side of Workflow Services connects to Portal, Oracle BPM Worklist, and E-mail Client users. Below Workflow Services is a database. To the right of the database is a box labeled Notification channels. Inside this box is a bullet list: E-mail, Voice, SMS, and IM). To the left of the database is a box labeled Identity Management. Inside this box is a bullet list: OID, LDAP, JAZN, and other user directories.