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Re: Trailing slashes in RDF

From: Stéphane Corlosquet <scorlosquet@gmail.com>
Date: Fri, 6 Mar 2015 13:47:55 -0500
Message-ID: <CAGR+nnGf-=y-2VwRUMWch7Dktjc6jfMQ3swuZsWEb0LN0NmheA@mail.gmail.com>
To: Phil Archer <phil@philarcher.org>
Cc: Semantic Web IG <semantic-web@w3.org>, Dan Brickley <danbri@google.com>
On Fri, Mar 6, 2015 at 12:25 PM, Phil Archer <phil@philarcher.org> wrote:

> Dan,
> IIRC you asked a while back on this list about the semantics associated
> with two URIs that differ only in the presence/absence of a trailing slash.
> I've been spending some time looking at the RDF available for ORCIDs
> recently, for example [1]. It's difficult to spot but in fact they use a
> URI like http://orcid.org/0000-0003-0782-2704 to refer to a person (in
> this case Ivan Herman) and the same URI with a trailing slash to refer to
> his online account.
> Clearly these two URIs *are* different and are being used consistently to
> distinguish between a real world object and its description, but, by
> convention, do you think the difference is sufficient to be regarded as
> 'safe?' Is orcid.org following good practice here?
> FWIW, no, one URI does not redirect to the other.

This might differ depending on the web server, or the version of a given
web server, some might redirect from one to the other, some might not. From
a human standpoint, visually speaking when looking at the URI, I don't find
the difference very obvious.

For those reasons, I don't think it's a good or safe way to disambiguate
between a real world object and its description.


> Phil.
> [1] http://i-sieve.com/cgi-bin/HTTP_Headers.cgi?url=http%3A%
> 2F%2Forcid.org%2F0000-0003-0782-2704&UA=ttl&get=on
> --
> Phil Archer
> http://philarcher.org/
> +44 (0)7887 767755
> @philarcher1

Received on Friday, 6 March 2015 18:48:26 UTC

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