Pontus portal presentation hierarchy

Pontus Portal:
Multiple sites can be created under a Pontus portal. There is a parent-child relationship between the sites and any Nesting is allowed.
Each site can contain many pages. Each page represents the integration of a type of business logic. The layout of the page can be controlled by the master.
There can be multiple logical zones in each page that controls the layout through the master. These zones are used to load specific business logic modules ), any module can be moved in these zones.
Module is the carrier of business logic. A module can have multiple skins for selection and presentation.