W3C - World Wide Web Consortium
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Semantic Web, RDF
URI-s Play a Fundamental Role


  • You can uniquely identify all resources on the web
  • Uniqueness is vital to make consistent statements
  • Anybody can create metadata on any resource on the Web
    • eg, the same SVG file could be annotated through other terms
  • It becomes easy to merge metadata
    • applications may merge the SVG annotations coming
    • from different sources
    • this can be done because they refer to the same URI-s!
    • applications may merge the SVG annotations coming from different sources
    • this can be done because they refer to the same URI-s!
  • Watch out for upcoming IRI-s in internationalization, too!

Ivan Herman, W3C 51 (76)