#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: new Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Keywords: RDF -------------------------+-------------------------------------------------- We should be doing things like:
<dc:date rdf:datatype="http://purl.org/dc/elements/1.1/W3CDTF%22%3E2006-04- 20T07:20:10Z</dc:date> <dc:format rdf:datatype="http://purl.org/dc/elements/1.1/IMT%22%3Etext/html</dc:format> <dc:language rdf:datatype="http://purl.org/dc/elements/1.1/ISO639-2%22%3Een</dc:language>
#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: new Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Resolution: Keywords: RDF | -------------------------+-------------------------------------------------- Comment (by crschmidt@crschmidt.net):
There's no practical benefit from this, and numerous costs. This makes working with the RDF more difficult, and it doesn't help with anything in our situation, or in any I can think of.
#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: new Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Resolution: Keywords: RDF | -------------------------+-------------------------------------------------- Comment (by earle):
Okay, I'll take your word for it - could you mention the costs here, for posterity's sake?
#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: new Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Resolution: Keywords: RDF | -------------------------+-------------------------------------------------- Comment (by crschmidt@crschmidt.net):
1. Many RDF frameworks do not do datatypes properly. The big ones -- RAP, Redland, etc. -- don't suffer from this, but rdf datatypes are probably the single least used area of the RDF specification. 2. In cases where it is used, RDF triple-pattern matches *must* specify the RDF datatypes -- this means that anything which is now trying to match on 'en' would have to search for both 'en' and 'en'^^<datatype>, which is annoying in the best case, and damn near impossible to do in the worst case. 3. None of the dc: RDF datatypes that you linked have any definition, so if we *were* to do this, terms that actually fit the bill would be needed -- these probably exist somewhere, but definitely not the ones you linked, none of which are defined.
#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: closed Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Resolution: invalid Keywords: RDF | -------------------------+-------------------------------------------------- Changes (by earle):
* resolution: => invalid * status: new => closed
Comment:
Okay - thanks. Closing this one then.
#116: Use datatypes in RDF -------------------------+-------------------------------------------------- Reporter: earle | Owner: earle Type: enhancement | Status: closed Priority: normal | Milestone: Component: openguides | Version: svn Severity: normal | Resolution: invalid Keywords: RDF | -------------------------+-------------------------------------------------- Comment (by Dave Beckett):
yes you should be using datatypes. SPARQL will allow you to datatype comparisons and especially with dates, that's a good thing. You should at least be using xsd:dateTime.
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