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Re: Query and access F2F document template

From: Olaf Hartig <hartig@informatik.hu-berlin.de>
Date: Tue, 7 Jun 2011 16:33:42 +0200
To: public-prov-wg@w3.org
Message-Id: <201106071633.44629.hartig@informatik.hu-berlin.de>
Hello,

Some aspects of the two key questions are unclear to me. More inline:

On Sunday 05 June 2011 22:11:40 Simon Miles wrote:
> Hello all (and A&Q TF especially),
> 
> Yogesh, the WG chairs and I would like to propose a skeleton for the
> document that the query and access TF will supply for the F2F1
> meeting.
> 
> A key aspect of this document is that, due to the short time before
> the meeting, it is deliberately narrow in scope.  As agreed following
> Olaf's prior proposals, we want to build on the incubator group
> chapter 6, by taking aims and assumptions from that document.
> However, we've reduced these to two key questions (suggested by Luc)
> for the F2F1:
>  1. Given the identity, I, of a resource state representation

1.) Does the  I  here really refer to the identity of that resource state 
representation or is  I  an identifier (e.g. a URI) for that resource state 
representation?

2.) About what kind of resources do we speak here?
From reading the email alone I would assume that this can be a state 
representation of an arbitrary kind of resource. However, the corresponding 
wiki page says "A user gains access to an online resource ..."  Does that mean 
we restrict ourself here to state representations of (what I would call) Web 
resources only (i.e. resources that can be made available on the Web)?  It 
would be fine with me; I just want to ensure we all speak about the same
kind of things.

> and a location, L, from which to retrieve provenance,

I guess L does not represent a physical location but a location on the Web. 
Correct?
If so, is L explicitly dedicated to the provenance of the aforementioned 
resource state representation or is it possible to retrieve provenance of 
other things as well from that same L?
Do we assume here that we know L is the location to retrieve the provenance
of the aforementioned resource state representation?

> how do we obtain the provenance of the representation from the location?

I guess you mean to obtain a representation (or description) of the 
provenance. Right?

>  2. How can a browser find I and L (as above) for an HTML document
> that was downloaded, so that its provenance may be retrieved?

Do we assume that, while the browser has the HTML document, it has no
information about the download of that document? So we want to find I and
L just from the HTML document?  (Which, again, is fine with me; I only want
to know that explicitly)

What exactly is the  I  here - the identity of the HTML document?

Greetings,
Olaf

 
> Please see the rest of the document skeleton for details:
>   http://www.w3.org/2011/prov/wiki/F2F1_Access_and_Query_Proposal
> 
> We welcome any comments on the skeleton structure proposed, including
> the scope decided for this document.
> 
> One specific request to Graham: you suggested Section 4 of the POWDER
> as providing a solution for the above questions (at least with regard
> to HTTP, HTML, ATOM). It looks straightforward enough to me what such
> a solution would look like (the same as described in the POWDER
> proposal but with provenance specific MIME types?), but it would be
> very helpful if you could sketch the proposal on the Wiki page as you
> understand it best.
> 
> Thanks,
> Simon
Received on Tuesday, 7 June 2011 14:34:18 GMT

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