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.

Position_ Screening Requirement. Details
Specifies any screenings or background checks required in connection with the requisition.

An identifier to uniquely distinquish the person or entity who created the comment. An optional attribute relevant to HR use cases such as
performance management in which there may be more than one commenter
within the same context.