STC in VOResource records

[Aurelien Stebe]

Hi Ray and all,

I've been reading comments on this issue and trying to find a solution, 
without much success I must say.
I just wanted to state that I would prefer to avoid that solution 
(though it is the best we have yet), because it breaks the separation 
between what the Registry understands and what it must return. In other 
words, a Registry could not anymore re-publish resources that it 
harvested without understanding the "coverage" element, which is what we 
agreed in Victoria.

I mean that in a first version we (at ESAVO) didn't plan on supporting 
the "coverage" element, and with this solution we would have to add 
logic on it to publish eventual Resources that have one. What would 
happen if a non-official extension to the schemas use "id/idref" like STC ?

For me the best solution is to drop the use of "id/idref" in STC or find 
a way for it not to impose modifications on other systems. I'm not an 
expert on STC, so I'm not sure how for the moment, but I'm trying to 
have a look.

Cheers and happy new year,
Aurelien

Ray Plante wrote:
> On Wed, 3 Jan 2007, Arnold Rots wrote:
>> Hm, if I read the definition of xs:ID correctly, even slashes and
>> colons are not allowed.
>
> Dang it--you are correct.  (Arnold, wouldn't want to save me from this 
> hell? ;-)
>
> Okay--here's a revised ruling--please find any remaining mistakes!
> For reference, the problem being addressed is summarized in
> http://www.ivoa.net/forum/registry/0612/1764.htm.
>
> A publishing registry shall be responsible for creating IDs within STC
> descriptions which are globally unique.  The convention for doing this
> will be to use an ID of the following form:
>
>     <resource's authority id>_<resource's resource key>_<coordsys key>
>
> where all slashes are substituted with dashes (-) or underscores (_). 
> For example, if the resource being described has an IVOA id of
> "ivo://adil.ncsa/adil", then the following can be used as an internal STC
> id refering to the UTC-FK5-TOPO standard system:
>
>     adil.ncsa_adil_UTC-FK5-TOPO
>
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