This glossary defines some of the terms used in this specification.
A desktop entry is a file with a name ending in the ".desktop" extension which conforms to the desktop entry specification. It describes a menu item, including a name, an icon, and what to do when the item is selected. Desktop entries are also known as ".desktop files."
          The id to identify a desktop entry with. 
          For example, if /usr/share/applications is
          specified as an <AppDir>, and /opt/ude
          as <LegacyDir prefix="foo-">
          then 
          /usr/share/applications/foo/bar.desktop, 
          /usr/share/applications/foo-bar.desktop
          and
          /opt/ude/Settings/bar.desktop all have
          the same desktop-file id foo-bar.desktop
        
A directory entry is a file with a name ending in the ".directory" extension which conforms to the desktop entry specification. It describes gives a localized name and an icon for a submenu. Directory entries are also known as ".directory files."
A "menu path" is the path to a particular menu. Menu paths are always "relative" so never start with a slash character. The path to a menu is simply the <Name> of each parent of the menu, followed by the <Name> of the menu itself. For example, "Foo/Bar/Baz" is a valid menu path.
          The canonical path to a directory entry, relative to the
          <DirectoryDir> containing the
          entry. For example, if /usr/share/desktop-directories is
          specified as an <DirectoryDir>, the relative path to
          /usr/share/desktop-directories/foo/bar.directory is
          foo/bar.directory.