The image shows the two backend tiers of Oracle Collaboration Suite. The top part of the image is the Applications tier and there is a box to represent each component in the Applications tier. These components are Oracle Calendar, Oracle Content Services, Oracle Discussions, Oracle Mail, Oracle Mobile Collaboration, Oracle Real-Time Collaboration, Oracle Collaboration Suite Search, Oracle Voicemail & Fax and Oracle Workspaces. The lower half of the image is a representation of the Oracle Collaboration Suite Infrastructure tier. In the center of this section is an Oracle Database. On one side of the database is a representation of Oracle Identity Management. The Oracle Identity Management box contains smaller boxes for Oracle Internet Directory, Oracle Single Sign-on, Delegated Administration Services and Directory Integration Provisioning. On the other side of the database is a representation for the Oracle Application Server Metadata Repository schemas.