- From: Steve Harris <steve.harris@garlik.com>
- Date: Mon, 11 Apr 2011 18:27:18 +0100
- To: Richard Cyganiak <richard@cyganiak.de>
- Cc: RDF Working Group WG <public-rdf-wg@w3.org>, Ian Davis <me@iandavis.com>
On 2011-04-11, at 18:23, Richard Cyganiak wrote: > On 11 Apr 2011, at 14:33, Steve Harris wrote: >> I'm not sure in this situation you'd want example fragments to be handled as a named graph type of first class object, but maybe I'm missing the use-case. >> >> Suppose I write >> >> <some-schema> a :Schema ; >> :example "@prefix some: <http://some.schema.example> .\n<bob> some:has <Thing> .\n" . >> >> Do I want those example triples to be accessible for e.g. in SPARQL queries? > > In this particular case I don't think so. > >> Or do I just want a convenient datatype to stash the literal text in RDF? > > Yes. It would be more … accurate … to declare explicitly that this literal is a Turtle literal. That's all. > > It's not a particularly powerful use case for graph literals, but a real one that I happened to come across. Ah, I see. I don't see how it's a usecase for graph literals at all, but I think I see where you're coming from now. - Steve >> On 2011-04-08, at 11:32, Richard Cyganiak wrote: >> >>> I just had a conversation with Ian Davis on Twitter that yielded a use case for defining datatype IRIs for graph literals. I thought I'd share it as input into ISSUE-5 [1]. >>> >>> He uses Turtle snippets as literals in SchemaPedia [2]. SchemaPedia is a site that helps find RDF vocabularies, and it lists example usage snippets for the vocabularies. The site's back-end is RDF-based. Turtle literals are used to store the examples, as well as change events when examples are modified. See [3] for a typical change event. >>> >>> Currently Ian uses plain literals, because no datatype was readily available. >>> >>> The idea of abusing Ivan's format URIs from [4] came up. >>> >>> Best, >>> Richard >>> >>> >>> [1] http://www.w3.org/2011/rdf-wg/track/issues/5 >>> [2] http://schemapedia.com/ >>> [3] http://api.talis.com/stores/openvocab/meta?about=http://open.vocab.org/changes/f07ca76699a536dd38b5cbbbe1ba181d&output=rdf >>> [4] http://www.w3.org/ns/formats/ >> >> -- >> Steve Harris, CTO, Garlik Limited >> 1-3 Halford Road, Richmond, TW10 6AW, UK >> +44 20 8439 8203 http://www.garlik.com/ >> Registered in England and Wales 535 7233 VAT # 849 0517 11 >> Registered office: Thames House, Portsmouth Road, Esher, Surrey, KT10 9AD >> > -- Steve Harris, CTO, Garlik Limited 1-3 Halford Road, Richmond, TW10 6AW, UK +44 20 8439 8203 http://www.garlik.com/ Registered in England and Wales 535 7233 VAT # 849 0517 11 Registered office: Thames House, Portsmouth Road, Esher, Surrey, KT10 9AD
Received on Monday, 11 April 2011 17:27:49 UTC