Re: Using DCAT for RSS

Hello Phil,

is this really the intention of DCAT to allow a dataset denote something
different than the distribution?
(assuming RSS feed content != other website content)

I never checked DCAT standards docs in detail, but my intuitive
understanding is, that different distributions of a dataset should have the
intention to cover the same content, just differing regarding format,
access method and maybe version or specific restrictions.

If a distribution is just "some data content" that is part of a dataset,
then we look at a collection of of rather arbitrary objects, which is not
what I'd like to be the definition of a dataset.

If such a concept were required, I'd rather introduce the notion of a
"component" type, to make clear that there is additional structure. Whereas
in my opinion dataset vs. distribution should be looked at more like
intentional definition vs. extensional definition (
https://en.wikipedia.org/wiki/Extensional_and_intensional_definitions).

Cheers, Marcel

@FroehlichMarcel


2016-08-18 13:22 GMT+02:00 Phil Archer <phila@w3.org>:

>
>
> On 18/08/2016 11:16, cristiano longo wrote:
>
>> Thanks Phil. I have two use cases. The former is simpler: i have an rdf
>> dataset if events and associated a sparql endpoint, an rss feed and a
>> Calendar file. Here it is quite clear that the rdf dataset have to be
>> modeled as dcat!:Dataset whereas the sparql endpoint, the rss feed and the
>> iCal file are distributions of this dataset.
>>
>
> Yep.
>
>  The latter case is more
>
>> confusing: i have just a website with some articles and an associated rss
>> feed. I see nothing here that is obviously a dataset (however the
>> definition of set of data is really large)
>>
>
> Ah, right. Yes, the definition of a dataset is so broad that a website
> counts, and I guess therefore an RSS feed counts as a distribution.
>
> Cheers
>
> Phil
>
>
>> Il 18/ago/2016 11:27 AM, "Phil Archer" <phila@w3.org> ha scritto:
>>
>> Hi Cristiano,
>>>
>>> dcat:Dataset and dcat:Distribution are not disjoint so you can have an
>>> RSS
>>> feed as an instance of both. But it wouldn't be correct to have a
>>> dcat:Dataset that was a collection of RSS feeds and then each of those
>>> feeds as a Distribution since the Distribution is a way of accessing the
>>> full dataset. You may have an API that allows you to select subsets of
>>> the
>>> dataset (that's a hot topic for me at the moment) and so your
>>> Distribution,
>>> which is an API, might well yield a single RSS feed but you'll need to
>>> think of it like that.
>>>
>>> I'm confusing myself just writing this but I hope it makes some sense.
>>> And, it would be remiss of me, when talking about DCAT, not to point you
>>> to
>>> the workshop on that topic later this year:
>>> https://www.w3.org/2016/11/sds
>>> voc/ Your question is very much in scope for that.
>>>
>>> Cheers
>>>
>>> Phil.
>>>
>>> On 17/08/2016 22:01, Cristiano Longo wrote:
>>>
>>> Hi folks, I'm creating a list of intresting RSS feeds. I suppose that
>>>> thet can be modeled as DCAT datasets (with RSS as distribution), am I
>>>> right?
>>>>
>>>>
>>>>
>>>> Any suggestion or comment is welcome,
>>>>
>>>> CL
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>
>>>
>>> Phil Archer
>>> W3C Data Activity Lead
>>> http://www.w3.org/2013/data/
>>>
>>> http://philarcher.org
>>> +44 (0)7887 767755
>>> @philarcher1
>>>
>>>
>>
> --
>
>
> Phil Archer
> W3C Data Activity Lead
> http://www.w3.org/2013/data/
>
> http://philarcher.org
> +44 (0)7887 767755
> @philarcher1
>
>