This document uses the following terms:
Enhanced ScreenTip: A small, pop-up window that provides context-sensitive Help when users point to an item on the ribbon.
gallery: A type of ribbon control that displays a set of items from which users can choose.
KeyTip: A small, pop-up window that appears over commands on the ribbon when users press the ALT key. By pressing the key that is displayed in a KeyTip, users can execute the command that is associated with the KeyTip.
Microsoft Office Backstage view: A full-screen, user-interface model that exposes file-level functionality for the active document. It is part of the Microsoft Office Fluent user interface, which replaces the previous system of layered menus, toolbars, and task panes.
Quick Access Toolbar: A set of controls that represents tasks or commands within an application. By default, it provides access to frequently used commands on the ribbon. Users can customize it by adding or removing commands.
ribbon: A set of controls that represents tasks or commands within an application. The tasks and commands are organized into tabs. The ribbon appears at the top of an application window and is part of the Microsoft Office Fluent user interface, which replaces the previous system of layered menus, toolbars, and task panes.
XML namespace: A collection of names that is used to identify elements, types, and attributes in XML documents identified in a URI reference [RFC3986]. A combination of XML namespace and local name allows XML documents to use elements, types, and attributes that have the same names but come from different sources. For more information, see [XMLNS-2ED].
XML schema definition (XSD): The World Wide Web Consortium (W3C) standard language that is used in defining XML schemas. Schemas are useful for enforcing structure and constraining the types of data that can be used validly within other XML documents. XML schema definition refers to the fully specified and currently recommended standard for use in authoring XML schemas.
MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.