Portal Architectur

        In the illustration below, each arrow may be read using the words “can be a member of.” It is important to note that the diagram illustrates only users and their collections. Permissions ` do not flow through all of these collections; permissions can be assigned to roles only.

The following concepts are used throughout Liferay:

·         Portals are accessed by Users.

·         Users can be collected into User Groups.

·         Users can belong to Organizations and join/leave Communities.

·         Roles are collections of permissions on portal objects that can be assigned to Users.

·          Satellite Office. Communities are not hierarchical.š Regional Office šOrganizations can be grouped into hierarchies, such as Home Office

·         Users, Groups, and Organizations can belong to Communities that have a common interest.

·         Within Organizations and Communities, users can belong to Teams, which are groupings of users for specific functions within a community or organization.

Users, Organizations and Communities have two separate collections of Pages called Public and Private Pages. Each page can have as many applications (portlets) as desired. The page administrator can lay out these applications into zones defined by a default or customized layout template.