Re: (proposal) was Re: defn of Named Graph

On 03/10/13 17:27, Markus Lanthaler wrote:
> On Thursday, October 03, 2013 5:53 PM, Andy Seaborne wrote:
>> On 03/10/13 16:01, Markus Lanthaler wrote:
>>> +1 but...
>>>
>>> ... as I've just re-read the definition of RDF source in Concepts, it
>>> appears that its definition is wrong (or at least inconsistent):
>>>
>>>      We informally use the term RDF source to refer to a persistent yet
>>> mutable
>>>      source or container of RDF graphs. An RDF source is a resource that
> may
>>> be
>>>      said to have a state that can change over time. A snapshot of the
> state
>>> can
>>>      be expressed as an RDF graph
>>>
>>> So a RDF source may return*multiple*  RDF graphs, i.e., a dataset but at
> the
>>> same time it is possible to express a snapshot as a*single* RDF*graph*.
>>
>> I don't read "mutable source or container of RDF graphs." as saying it
>> will return all of them, only that it can contain different ones.  The
>> "snapshot" text seems to make it return one at a time.
>
> Hmm... I see your point but I still find it very confusing.

I quite agree there!

>
>
>> "source or container of [an] RDF graph" (singular) would imply that the
>> container state can't chnage over time.
>
> Why? It would just contain/return a single graph at any time. That doesn't
> mean that it always has to contain/return the same graph.

One reading of "container of an RDF graph" is that if it contains 
anything it is one particular graph, i.e. the only change is graph /no 
graph.

	Andy

>
>
> --
> Markus Lanthaler
> @markuslanthaler
>
>

Received on Thursday, 3 October 2013 18:43:21 UTC