W3C home > Mailing lists > Public > public-rdf-wg@w3.org >
September 2012  Re: dataset syntax metadata  From: Lee
Feigenbaum <lee@thefigtrees.net> Date: Wed, 26 Sep 2012 12:50:48
-0400 Message-ID: <50633268.5040606@thefigtrees.net> To: Sandro
Hawke <sandro@w3.org> CC: W3C RDF WG <public-rdf-wg@w3.org> I'm
not sure if this is at all helpful input, but here's how we
handle  metadata -- in general -- in Anzo. Pat, you may avert
your eyes because  the semantics are inconsistent at best.  A
couple of "regular" named graphs  <p1> { <p1> a ex:Person ;
foaf:name "Lee" ...  } <p2> { <p2> a ex:Person ; foaf:name
"Lynn" ... }  Named graphs have corresponding "metadata" graphs
<mdg1> { <mdg1> a anzo:MetadataGraph . <p1> a anzo:NamedGraph ;
anzo:hasMetadataGraph <mdg1> ; anzo:createdBy ... ;
anzo:lastModifiedBy  ... ; anzo:lastModifiedAt ... ; ... }
<mdg2> { <mdg2> a anzo:MetadataGraph . <p2> a anzo:NamedGraph ;
anzo:hasMetadataGraph <mdg2> ; anzo:createdBy ... ;
anzo:lastModifiedBy   We also have first-class datasets,