Ivan’s private site

February 1, 2008

New DCMI documents published

Filed under: Semantic Web,Work Related — Ivan Herman @ 14:16

I must admit I did not realize that… but the DCMI has just published two important documents. It was not such a long time ago, though, so I may not be the only one who missed it (thanks to Kjetil Kjernsmo who drew my attention, too, to this in a mail he sent to the Linking Open Data mailing list).

The first document is an update of the well-known DC terms that we all use. This updated “DCMI Metadata Terms” defines the ranges and domains of most of the terms and puts all these terms into the same namespace (http://purl.org/dc/terms/). The old namespace (http://purl.org/dc/elements/1.1/) remains untouched, ie, no documents using those become “invalid” in any sense, but it is probably better to start using the /terms/ namespace: it gives a better semantic inference possibility. There is a separate documentation for the terms, and the namespace dereferences (of course…) to the appropriate RDF/XML document.

For those who are familiar with the DCMI “Abstract model” but also care about the Semantic Web the second document is also interesting. The title of the document tells it all: “Expressing Dublin Core metadata using the Resource Description Framework (RDF)”…

See also the DCMI news items on the new term document and the RDF one for more details.

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