A standard controller’s tasks are as follows:

Controlling Data: Standard controllers fetch data and provide it to the page, list, dialog or
form, all referred to here as views. While it is the view’s task to manage the presentation of
its data, the controller gathers the data from the view as entered or changed by a user, and
passes it to the data model for processing.

•Controlling Actions: Standard controllers respond to user or programmatic commands
initiated from a view. Such commands, referred to as Actions, might be associated with
processing the data gathered from the view, or simply to respond to a navigation link.

•Controlling Navigation: Standard controllers navigate the user to any specific view associated
with an action. They also handle redirection to subsequent views, based on the specific
outcome of various actions and data operations.