This graphic shows the hierarchy of UI controls:
Desktop "defaultDesktopLabel"
- Look and Feel: "defaultLookAndFeel"
- Book: "Home"
-- Page: "page"
----Layout
------Placeholder (left column)
-------- Portlet instance (Change Center)
-------- Portlet instance (Domain Structure)
-------- Portlet instance (How do I...)
-------- Portlet instance (System Status)
------Placeholder (right column)
-------- Portlet instance (Toolbar)
-------- Portlet instance (Breadcrumbs)
-------- Portlet instance (Messages)
-------- Book: "ContentBook"
---------- Page
------------ Book: "DomainBook"
-------------- Book: "CoreDomainBook"
---------------- Page: "CoreDomainPages"
------------------ Book: "CoreDomainConfigGeneratlBook"
-------------------- Book: "DomainConfigTabPage"
---------------------- Page: DomainConfigGeneralPage
---------------------- Page: DomainConfigJtaPage
---------------------- Page: DomainConfigEJBPage
---------------------- Page: DomainConfigWebAppPage
---------------------- Page: DomainConfigSnmpPage
---------------------- Page: DomainConfigLoggingPage
---------------------- Page: DomainConfigLogFilterTablePage
-------------------- Book: "DomainMonitorTabPage"
------------ Book: "CoreDomainCreateLogFilterBook"
-------- Page
---------- Book: "ServerBook"