For understanding the process of page rendering, it is very important
to know the structure of an OAF page.
Structure of an OA Framework Page
An OA Framework page has a collection of web beans or widgets like
text boxes, buttons, etc. Every OAF page has containers for maintaining these
widgets known as regions. And there always exists a parent region of all the
regions known as the page layout region. This page layout region is one for
every OAF page and is also the point where the Application Module is linked to
the page.
