# Discovery Framework component features

This section describes features common to Discovery Framework components.

- About components
  The Discovery Framework is a portal application, built on the Liferay Portal, that you populate with portlet components.
- About component users
  This catalog provides information about components from the perspective of two distinct Discovery Framework users. These users have different objectives and different access to component controls.
- Modifying component appearance
  In any component, the power user can modify certain aspects of the component's appearance on the Look and Feel page.