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Re: ACTION-115: Note on proxy graph URI

From: Chimezie Ogbuji <ogbujic@ccf.org>
Date: Mon, 12 Oct 2009 12:45:33 -0400
To: "Seaborne, Andy" <andy.seaborne@hp.com>, "Kjetil Kjernsmo" <kjetil@kjernsmo.net>, "public-rdf-dawg@w3.org" <public-rdf-dawg@w3.org>
Message-ID: <C6F8D56D.CFBF%ogbujic@ccf.org>
Response to Kjetil / Andy re: proxies is below (I have made changes to the
editorial draft):

On 10/11/09 3:59 PM, "Seaborne, Andy" <andy.seaborne@hp.com> wrote:
> I don't like the term proxy because:
> 
> A/ (minor) "proxies" in HTTP occur in a lot of places so it's a bit overloaded
> 
> B/ Having two names for the same thing is just something that happens on the
> web. Both names have the same status.
> 
> It's the same graph, accessible through a different name.  Each name is as
> valid as the other and one is not a second class name; "proxy", for me, sort
> of implies it's not a first class name.

Ok.  I was using the term proxy to tease out whether we were talking about
URI 'aliases' or service endpoints for the purpose of clarity in the
protocol model.  It appears the use case we are talking about is that of an
alias.

In which case, I believe this settles the issue of whether this induces good
'HTTP behavior', since presumably you can use all the verbs
(PUT/POST/GET/DELETE) uniformly on these alias URIs as though you were using
the IRI of the graph directly. In addition, conditional GETs would work as
expected.  

"Kjetil Kjernsmo" wrote
> So, it means it is a URI Alias. While that carries some negative connotation,
perhaps we should just use that term "endpoint URI alias", or something...?

Well (WRT the negative connotation of 'alias') - although Web arch generally
frowns on multiple URIs to identify the same resource it doesn't forbid it,
and it appears this use case is an exemplar of why URI aliases are sometimes
necessary.

I have changed the editorial text and the image to use URI alias rather than
URI proxy.  Note I've also updated the editorial text with some of your
suggestions, but I didn't add text about at risk since I think the existence
of editorial text that highlights the concerns and the fact that it is a
FPWD adequately addresses this.

-- Chimezie


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Received on Monday, 12 October 2009 16:46:36 GMT

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