Concepts 
This section explains key concepts for developing portal applications, and includes the following:
Introduces the architectural concepts of the portal, as well as describes the Java-based framework for developing and running portal applications.
Introduces the structure and specifics of a portal application and the main parts of which it is comprised.
Portal Content Directory (PCD) Overview
Introduces the portal data layer that enables to access and control the main repository for portal objects, such as iViews, pages and roles.