| Maketext | Portal::Portlet | abstraction for active components of a portal | |
| Portal/Page.pm | Portal::Registrar | registry for portlets | |
| Portal::Layout | build and manage the appearance of a portal application | Portal::Session | provide session context for portals |
| Portal::Maketext | Maketext base module for the Portal Library | Portal::State | maintain state that is passed via forms or links |
| Portal::Navigation | abstract base class for concrete navigation objects | Portal::Widget | base class for portal widgets |
| Portal::NavigationScheme | abstract base class for abstract navigation objects | Widget |