Re: Asset Description Metadata Schema (ADMS) [SEC=UNCLASSIFIED]

I agree that the usage notes for dcat:accessURL and downloadURL can be made clearer (not sure if this is still possible)

However, regarding defining the range as a literal typed as xdd:anyURI, I don't agree. 
dcat:accessURL is used to refer to a mechanism through which the data can be accessed. This mechanism can be an API that can be represented as a rdfs:Resource that needs to be described with further properties. 

Regards,
Fadi
--------------------------------------------------
Fadi Maali
PhD student @ DERI
Irish Research Council Embark Scholarship holder
http://www.deri.ie/users/fadi-maali

On 25 Jul 2013, at 17:47, Makx Dekkers <mail@makxdekkers.com> wrote:

> While this comment is made on ADMS, it is really DCAT that creates the
> issue -- ADMS merely uses accessURL and downloadURL from DCAT.
> 
> The problem seems to be that there is a mismatch in the DCAT spec
> between the definitions and the usage notes on one hand, and the range
> declarations on the other. 
> 
> In DCAT, the description of accessURL says "Could be any kind of URL",
> downloadURL is defined as a "link to a ... file". Both usage notes say
> "the value is a URL". That conflicts indeed with the range of
> rdfs:Resource. It may be pedantic, but it may also be confusing. 
> 
> If I understand correctly from an earlier discussion in the group, the
> value of these properties (i.e. their range) is in fact the file (or the
> landing page etc.) that contains (or gives access to) the bits (the
> physical manifestation) of the dataset.
> 
> Maybe the accessURL could be defined as "A landing page, feed, SPARQL
> endpoint or other type of resource that gives access to the distribution
> of the dataset".
> 
> And for downloadURL: "A file that contains the distribution of the
> dataset in a given format".
> 
> Both usage notes could then say that the resource is referred to by its
> URL.
> 
> Makx.
> 
> 
> 
> 
> 
>> -----Original Message-----
>> From: Sandro Hawke [mailto:sandro@w3.org]
>> Sent: Thursday, July 25, 2013 5:35 PM
>> To: Public GLD WG
>> Subject: Re: Asset Description Metadata Schema (ADMS)
>> [SEC=UNCLASSIFIED]
>> 
>> [inside WG, not replying to commenter yet]
>> 
>> On 07/22/2013 01:12 AM, Paul Murray wrote:
>>> I would suggest that the range of
>>> 	dcat:AccessURL
>>> 	dcat:downloadURL
>>> 
>>> Should not be a resource, but a literal of type xs:anyURI . The
>> vocabulary is not talking about a thing to which the URL refers, but
>> about the URL in and of itself.
>>> 
>>> 
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>> 
>> Thoughts?   My understanding is that he's correct in a pedantic sense,
>> but that's not how people want to do things.   We should probably add
>> some text to the document explaining this and maybe motivating it.
>> 
>>      -- Sandro
> 
> 
>

Received on Tuesday, 30 July 2013 23:50:35 UTC