Hi Jeff,
It's interesting to see the difference of opinion between the standards developers (the idea of version number in URI came from the OGC URN specification: interesting how EPSG came to a different conclusion) and those who have to live with the consequences. The more I think about it, the more I think you and Benno are absolutely right.
Cheers, Roy.
________________________________________
From: cf-metadata-bounces at cgd.ucar.edu [cf-metadata-bounces at cgd.ucar.edu] On Behalf Of Jeff deLaBeaujardiere [Jeff.deLaBeaujardiere at noaa.gov]
Sent: 16 December 2010 19:40
To: John Graybeal
Cc: cf-metadata at cgd.ucar.edu
Subject: Re: [CF-metadata] Web reference to a standard name?
On 2010-12-14 12:56, John Graybeal wrote:
> Just to be crystal clear, the places where you have '16' could also have 'current' (if I understand correctly what Roy was saying about their server), and the mmisw one could also be served with a particular version ID (analogous to the NERC example).
I think it is of the utmost importance to have a URI that does not include a version number
and always provides the latest answer. Otherwise you have a proliferation of identifiers
mean the same thing but appear to change every time the overall vocabulary is updated. You
can also have a version-specific entry if desired.
There were similar discussions regarding identifiers for coordinate reference system
identifiers from EPSG (European Petroleum Survey Group), and it was fortunately
recognized that a version-less URI was essential.
-Jeff
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Received on Thu Dec 16 2010 - 13:57:11 GMT
