Semantic Web - slide "Uniform Resource Identifiers (URIs)"

a Uniform Resource Identifier (URI) is either
- a Uniform Resource Locator (URL)
  - e.g. http://www.daml.org/researchers
- a Uniform Resource Name (URN)
  - e.g. urn:isbn:0062515861
a URI reference is either
- a URI
  - e.g. http://www.daml.org/researchers
- a URI plus a fragment
  - e.g. http://www.daml.org/researchers#mdean