An element is a tag that is a container for subelements and attributes. For example, the nlconfig element contains defining information for the notification list you are adding or editing in the repository. If an element comprises any subelements, these are defined in parentheses after the element declaration in the DTD. For example, the notification list element, nlconfig, comprises a filter, column heading, and user profile as seen in this sample of the DTD:

<!ELEMENT  nlconfig  (filterconfig | columnheading | userprofile)*>