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: [email protected] [[email protected]] On Behalf Of Jeff deLaBeaujardiere [[email protected]] Sent: 16 December 2010 19:40 To: John Graybeal Cc: [email protected] 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 _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata-- This message (and any attachments) is for the recipient only NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system. _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
