<xs:complexType name="ObjectAlias"><xs:annotation><xs:documentation>Use this to create multiple aliases for any object instance. Note that an Authority is required for each alias.</xs:documentation></xs:annotation><xs:sequence><xs:element name="Identifier" type="eml:String64" minOccurs="1" maxOccurs="1"/><xs:element name="Description" type="eml:String2000" minOccurs="0" maxOccurs="1"/></xs:sequence><xs:attribute name="authority" use="required" type="eml:String64"/></xs:complexType>