Re: PROV-ISSUE-68 (http-link-domain): Domain of HTTP links with rel=provenance [Accessing and Querying Provenance]

Olaf,

A couple of issue here.

Re. using the anchor option, yes I think that should be included as an option - 
I also would like to find a corresponding mechanism for HTML <link>.

As for the default case... maybe... I'll need to think about that some more.

More later.

#g
--



Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-68 (http-link-domain): Domain of HTTP links with rel=provenance [Accessing and Querying Provenance]
> 
> http://www.w3.org/2011/prov/track/issues/68
> 
> Raised by: Olaf Hartig
> On product: Accessing and Querying Provenance
> 
>>From Section 3.1 it is not clear what the semantics of the HTTP link with rel="provenance" is. More precisely, what is the domain of such a link?
> 
> Notice, RFC 5988, Section 5.2 [1], defines a default for the domain (called "context of the link" in RFC 5988) as follow:
> 
>      """
>      By default, the context of a link conveyed
>      in the Link header field is the IRI of the
>      requested resource.
>      """
> 
> Was it the intention that we use this default for links with rel="provenance"?
> 
> If so, I propose to make that explicit in Section 3.1.
> 
> However, I would argue against using this default for links with rel="provenance". Instead, I propose to define the domain (i.e. the context IRI) of such links to be the IRI that identifies the representation which is provided as the content of the corresponding 2xx HTTP response. The rationale for this proposal is the following. According to the Linked Data principles I may obtain data about a thing by looking up the URI for that thing; what I get is a set of RDF triples extracted from a representation of a resource about the thing. In order to assess the quality and trustworthiness of these triples I don't (only) want general provenance information about the resource; instead, I'm particularly interested in the provenance of the specific representation from which I extracted the triples.
> 
> BTW, my proposal does not rule out linking to a provenance description for the resource. It is possible to explicitly use the anchor parameter to explicitly specify the context IRI of a link with rel="provenance".
> 
> Olaf
> 
> [1] http://tools.ietf.org/html/rfc5988#section-5.2
> 
> 
> 
> 
>

Received on Thursday, 4 August 2011 08:42:08 UTC