Universal Resource Identifiers

http://www.w3.org/ ?

• Universality:
  • Any resource anywhere can be given a URI
  • Any resource of significance should be given a URI:
    If an object does not a URI, it does not exist.
• Global scope
  • It doesn't matter to whom or where you specify that URI, it will have the same meaning.
  • Any new space of identifiers or address space can be represented as a subset of URI space.
• Identity:
  • a URI will repeatably refer to "the same" thing
  • the significance of identity for a given URI is determined by the person who owns the URI, who first determined what it points to.