Re: handling metadata with multiple values

From: Patrick Dowler <patrick.dowler-at-nrc-cnrc.gc.ca>
Date: Wed, 13 Aug 2003 09:23:47 -0700


On August 13, 2003 02:53, Alberto Micol wrote:

> <INSTRUMENT> WFPC2 </INSTRUMENT> (or whatever is the UCD for
> instrument_name)
>
>
> but we always use
>
>
> <WFPC2/>
>
>
> because WFPC2 is part of our dictionary.

The problem with such an approach is that the dictionary (say the list of known instruments) changes all the time, so we would also need a process by which new tags are added to the XSD, we'd have many XSD versions, we'd have docs requiring various versions of the XSD to be valid. if you though shared lib versioning was nasty....

-- 
Patrick Dowler
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Received on 2003-08-13Z18:24:30