UIAction [0..*] - A UI Action is a user interface handler that is invoked in response to a UIEvent.
Parents
Portlet - Portlets are the basic UI components that make up an application. They host one or more Layouts and present features to end users.
Dialog - Dialogs are similar to Portlets, but are specifically used for creating, editing, and presenting information in a transactional, rather than informational way.
UIAction : Layout
A UI Action is a user interface handler that is invoked in response to a UIEvent.
