| NCName | This class represents the data type NCName use for XML non-colonized names. | code | html |
| NamespaceDeclaration | Represents an XML namespace declaration, consisting of a namespace prefix and a namespace URI. | code | html |
| QNameTokenUnion | This class represents the data type "Union of xs:QName and xs:Token" where the token values are #any, #none, or #other. | code | html |