In the iPanel Assignments dialog box you assign to roles Unifier projects defined as Portal data sources, and Web components. When a user logs onto the Portal, the iPanel displays all of the Unifier projects and Web components assigned to all of the user’s roles.
Data Source Assignments
Unifier projects defined as Portal data sources are integrated into the Portal environment as iPanels. The data source to role assignments determine whether or not a given Unifier project iPanel appears in a user’s iPanel. Which Unifier project elements are available to the user is determined in the Unifier project itself.
In addition, see
User Mapping for information about mapping portal users to a Unifier project-based data source. See SAP Portals - Unification Server documentation for information on Unifier projects.
To assign Portal data sources to roles:

Web Component Assignments
Web components are accessed from the iPanel. They enable retrieval of related data from the World Wide Web. For information about creating Web components, see the documentation on Web components.
To assign Web components to roles: