Re: UCR issue: phrasing of CRS requirement(s)

Dear all,

> Oddly, perhaps, seems not to care about CRS at all:

Not really, they rely on us! Please, see the current issue at

> Can we take inspiration from the former one  (geo)  and admit
> alternative CRSs that must be identified by virtue of the ontology
> (and therefore namespace, assuming a 1-1 relationship) that is used?

+1! Note that CRS could also have stable URIs to use. The French 
National Geographic Institute (IGN) aims to provide such stable URIs for 
the numerous CRSs used by French authorities.

> This could do for  *referencing* a  CRS without ever needing a
> "default". For the *description" of a CRS, I would vote to defer that
> to the OGC by its existing methods, and I see no reason why that
> description needs to have a linked data representation,  beyond an
> ontology that permits its use.

Please, note that we have already a vocabulary for describing CRSs, 
based on ISO 19111. It is available at and 
to see the description of the vocab in your favorite language.
Best regards.


Raphaël Troncy
EURECOM, Campus SophiaTech
Multimedia Communications Department
450 route des Chappes, 06410 Biot, France.
e-mail: &
Tel: +33 (0)4 - 9300 8242
Fax: +33 (0)4 - 9000 8200

Received on Monday, 18 May 2015 15:23:55 UTC