1 / 10

CORES Metadata Interoperability Workshop

CORES Metadata Interoperability Workshop. Dave Beckett SWAD-Europe. Dave Beckett - Background. Metadata - DCMI Semantic Web - RDF Core Web Developer W3C Advisory Committee Rep. W3C and Elements / Terms. W3C is not a registry (defer to IETF) Terms are in specifications

temima
Télécharger la présentation

CORES Metadata Interoperability Workshop

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CORES Metadata Interoperability Workshop Dave Beckett SWAD-Europe

  2. Dave Beckett - Background • Metadata - DCMI • Semantic Web - RDF Core • Web Developer • W3C Advisory Committee Rep.

  3. W3C and Elements / Terms • W3C is not a registry (defer to IETF) • Terms are in specifications • Semantic web languages - URIs • URIs not necessarily for retrieval • Working with IETF on URI updates

  4. Our standard has "elements" • Few W3C RECs are languages • Some have “elements” called: • RDF: Properties, Classes • XML: Infoitems, Facets, Particles (XSD) • For those: Yes

  5. Identified in a citable way • “In principle, we would be willing to identify our elements in a more generalized form shared by other standards as well.” • Yes - part of the W3C mission

  6. Identify elements with URIs • Yes (RDF, OWL do this) • But XSD uses XML Qnames • Working on the latter • Something may be behind the URI(after resolution, retrieval)

  7. URI stability, persistence, … • Yes. • Guaranteed by W3C host institutions - Persistence Policy • /TR/ document publication policy • URIs for W3C namespaces policy(2001)

  8. Application Layer • Mostly left to users • Applications of RDF: • Ontology Web Language (OWL) • CC/PP • WAI Content Guidelines • Applications of XML Schemas: • Few

  9. W3C Semantic Web Activity • Welcomes this initiative • Encourage use of others terms • Want to mix and match • RDF bootstraping this with DCES • Ontology Web Language (OWL)

  10. URI Considerations • URI schemes very expensive to deploy. • URNs getting cheaper - discovery of resolution services by DDDS • HTTP URLs very cheap • URIs do not require being online

More Related