Metadata Registry Matrix

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  • Purpose: publish, share and maintain vocabularies, terms and elements

Oracle Service Registry[edit]

  • Purpose: is for any kind of service metadata or artifact
  • Sun's Service Registry (now Oracle Service Registry) was implemented to provide SOA Visibility.The registry provides awareness of service descriptions to help consumers determine their willingness to interact with the service. The registry could also provide awareness of consumer descriptions to help providers determine their willingness to interact with consumers.
  • as it is commercial and has no free download, I could not test the functionality.

DC Registry[edit]

  • Purpose: contains the DCMI terms, classes and Vocabs
  • DC Registry is just for discovering the DC elements, terms and vocabularies. You cannot register own collections.


  • Purpose: Terminology and Other Language and Content Resources


Criteria \ Registry NSDL Registry Oracle (Sun) Service Registry DC Registry Isocat
Discovery of metadata terms, classes, etc. yes ? yes yes
Reuse of Metadata terms, classes, etc. yes ? yes yes
Publish own metadata terms, classes, etc. yes ? no yes
Upload Schemas (XML, RDF) yes ? no no
Versioning of metadata yes ? no yes
Domain Independence yes ? yes yes
Open Source Registry yes no yes yes
Multiligual Definitions no (?) ? yes yes


  • NSDL Registry
    • todo: provide feedback on multilanguage definition and PURL creation flexibility