Re: RDF 1.1 Primer

On Mon, 2013-11-25 at 10:37 +0000, Yves Raimond wrote:
> Hello Pat,
>
> First of all, many thanks for the comments - we'll go through them in
> more details in the coming days. I just had one question about the
> following:
>
> [snip]
>
>
> > "We can then make statements about these two graphs, for example adding license and provenance information:
> >
> >         <http://example.com/bob> <is published by> <http://example.org>.
> >         <http://example.com/bob> <has license> <http://creativecommons.org/licenses/by/3.0/>."
> >
> > <hair tearing> AAAARRRRGGGH</hair tearing> NO WE CAN'T. Or at least, this use is NOT SUPPORTED BY RDF with the specs in their current state. That 'metadata' use works ONLY when we know that the "identifying" graph IRIs denote their graphs, and WE HAVE EXPLICITLY SAID THAT RDF DOES NOT ASSUME THIS. A conforming RDF engine would be perfectly conforming if it refused to treat those subject IRIs as denoting the graph in these triples.  There is NOTHING in the RDF specs that say that a general IRI must be taken to denote what it conventionally identifies.  We do this only for datatype IRIs, and even getting that much into the specs was an uphill struggle; and in the case of graph labels in a dataset, we explicitly warn people to not expect this to be true (because it often isn't.) I know the Primer has to be simple, but please let us not put actual lies into it.
> >
>
> "RDF does not assume this" doesn't mean that RDF explicitly forbids it,
> no? I thought that we deliberately left that open for people to use
> graph IRIs as they see fit. If it's an 'actual lie' (which I really
> don't think it is), then it's a bit of an issue, as a lot of people use
> graphs to do exactly that.

Just thinking - would rephrasing the first sentence as "We can them make
statements about these two graph IRIS [...]" work?

Best,
Yves

>
> Best,
> Yves
>
>
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Received on Monday, 25 November 2013 10:48:42 UTC