identifier

definition

A reference to the resource like a PID or an internal identifier used by the resource provider

type

xs:string

value space

values

examples

ISOcatLink

~http://www.isocat.org/datcat/DC-2573 (refers to pids only)

DCLink

dc:identifier

OLACLink

tips

discussion notes

Pending in implementation: the attribute "type" should be used for further specification