FYI.
I’ve just come across some fairly recent projects: The Vocabulary for Interlinked Datasets (void): http://vocab.deri.ie/void. And the Data Catalog Vocabulary (dcat, for e-gov): http://www.w3.org/egov/wiki/Data_Catalog_Vocabulary. (For the latter, see also: http://vocab.deri.ie/dcat-overview). It seems like these must be related.
These might be or become relevant to OOR.
Thanks,
Leo
_____________________________________________
Dr. Leo Obrst The MITRE Corporation, Information Semantics
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