[PROJ] Area of usage (short) name

[Martin Desruisseaux]

Le 21/07/2023 à 18:48, Even Rouault a écrit :
>
> I don't think EPSG extent short names qualify as identifiers. They 
> might be altered between EPSG releases. Only their EPSG code is a true 
> (ie unmutable) identifier.
>
True, but this is true for CRS name as well, and nevertheless ISO 19111 
defines the type of those names as MD_Identifier. I agree that this is a 
bit surprising. A possible rational is that MD_Identifier contains a 
`version` attribute. so while the identifier code alone is ambiguous and 
unstable, the (code, version) or (namespace, code, version) tuples are 
more stable.

     Martin