Allows the implementer to extend the base HR-XML specification.
This is done by defining the additional information in XML Schema and referencing the new schema in the xml instance document throught the use of namespaces. Once this is done the additional information defined there can be carried in the BOD XML instance document.

UDT0000011-SC7
SC
Identification Scheme Data. Uniform Resource. Identifier
The Uniform Resource Identifier that identifies where the identification scheme data is located.
Identification Scheme Data
Uniform Resource Identifier
Identifier
string

Employment References. Details
Contains information on one or more person who is or may be a source of information about a person's skills, prior employment, character, or suitability for employment. OED. reference n. a. The act of referring one person to another for information or an explanation; hence, a person to whom one is (or may be) referred for this purpose; b. A (usu. written) report produced by a referee; a testimonial.

UDT0000011-SC8
SC
Identification Scheme. Uniform Resource. Identifier
The Uniform Resource Identifier that identifies where the identification scheme is located.
Identification Scheme
Uniform Resource Identifier
Identifier
string

UNDT000011-SC2
SC
Identification Scheme. Identifier
The identification of the identification scheme.
Identification Scheme
Identification
Identifier
string

UNDT000011-SC4
SC
Identification Scheme Agency. Identifier
The identification of the agency that maintains the identification scheme.
Identification Scheme Agency
Identification
Identifier
string
Defaults to the UN/EDIFACT data element 3055 code list.