RDF is a model, the semantics of RDF statements are defined in
ontologies, and not a priori in MIME content types.
It would be tedious to register for every RDF ontology a MIME content
type, if you look at http://lov.okfn.org/dataset/lov/ there can be
plenty of them in just one document, and there are no limits.
One fundamental concept of RDF ontologies is the open world assumption
(OWA).
The recipe for RDF graph retrieval with OWA is: send a request to a web
service (like SRU), ask for content negotiation for your favorite RDF
serialization with the Accept header, read the response, parse it
accordingly to the Content-Type header, iterate through the RDF graph
(the triples), and optionally, the "follow-your-nose" principle takes
you to everywhere else on the Web, for example, the ontologies you want
to examine, or other links. And Bibframe is just one ontology of many in
an RDF graph serialization.
So, for Bibframe data, it's all in place.
Best,
Jörg
>>> "LeVan,Ralph" <[log in to unmask]> schrieb am 20.02.2014 um 16.30 Uhr
in Nachricht
<[log in to unmask]>:
> Nope.
>
> RDF is much more syntax than semantics. It's triples. It doesn't
tell you
> any more about what you're going to get than asking for XML does.
>
> Surely you don't think that the triples would be identical if you
asked for
> schemadotorg+rdf or foaf+rdf or rda+rdf or vnd.oclc.viaf+rdf. Those
are
> schemas with completely different semantics, even if they use an
identical
> syntax.
>
> Yes, there will need to be some agreement on how you ask a site for
Bibframe
> data. Probably a topic for the Bibframe folks.
>
> Ralph
>
> -----Original Message-----
> From: SRU (Search and Retrieve Via URL) Implementors
> [mailto:[log in to unmask]] On Behalf Of Jörg Prante
> Sent: Thursday, February 20, 2014 3:40 AM
> To: [log in to unmask]
> Subject: Antw: Re: SRU recordPacking and JSON
>
> There is no need for a Bibframe experimental media type. Bibframe
model
> is a subset of RDF. So we already have
>
> application/rdf+xml
> application/ld+json
> text/n3
> text/turtle
>
> http://www.iana.org/assignments/media-types/media-types.xhtml
>
> http://tools.ietf.org/search/rfc6838#section-4.2
>
> "While it is possible for a given media type to be assigned
additional
> names, the use of different names to identify the same media type is
> discouraged."
>
> Jörg
>
>>>> "LeVan,Ralph" <[log in to unmask]> schrieb am 20.02.2014 um 3.00 Uhr
in
> Nachricht
>
<[log in to unmask]>:
>> No, there is the concept of experimental media types that can be
used
> between
>> consenting adults.
> http://www.mhonarc.org/~ehood/MIME/2046/rfc2046.html#6.
>> So, X-application/bibframe+xml;q=0.00 :) No need to seek standards
> approval
>> for that.
>
>
>
>
> --
> Jörg Prante
> hbz, Gruppe Portale
> - Digitale Bibliothek und Online-Fernleihe -
> Postfach 270451, 50510 Köln, Deutschland
> Telefon +49-221-40075-156, Fax +49-221-40075-190
> [log in to unmask]
> http://www.hbz-nrw.de
--
Jörg Prante
hbz, Gruppe Portale
- Digitale Bibliothek und Online-Fernleihe -
Postfach 270451, 50510 Köln, Deutschland
Telefon +49-221-40075-156, Fax +49-221-40075-190
[log in to unmask]
http://www.hbz-nrw.de
|