Using UCDs as tags

[Martin Hill]

On Wednesday 13 August 2003 4:54 pm, Alberto Micol wrote:
> I was thinking to have WFPC2 in the dictionary, meaning that
> you'll find all the related necessary information (or at least a pointer to
> the relevant wfpc2 data model) in the dictionary, without having to carry
> it along all the time.

I think we've got different dictionaries here.  Things 
like descriptions of instruments I would have thought are likely to change; 
for example someone puts a different filter in (simplistically).  Whereas a 
description of what a filter *is* will be static.  I think (??) the registry 
will handle the former - descriptions of data sets, publications and at the 
very least where to find descriptions of instruments/people/etc used to 
gather the data - which in fact you might have to carry around with the data, 
as certain values might change with time.

-- 
Martin Hill
Astrogrid/AVO, ROE
Tel: 07901 55 24 66