Protocol independent identifiers

• http://example.com is NOT necessarily an address

• You almost never just “find†a URI

  • Attributes, elements…

• How do you know if it’s an address?

• You have to read something

• Context of use says

  • xmlns says no/maybe
  • href may say yes

• http://example.com ?= id://example.com ?= urn…

• Why http scheme is prefered for identifiers

• But NOT necessarily an address

Notes: