[Pierre Didelon]

Andrea Preite Martinez wrote:

> Dear all,
> 
> I received from the IVOA Exec a request to modify all UCD1+ words that 
> do not conform to what is said in the standard UCD document, i.e.:
> 
>  UCD1+ words at the same level in the hierarchy cannot be a starting  
> substring of another
> 
> that is, we cannot have phot.flux and phot.fluxDens
> 
> As you know, the document at
> http://www.ivoa.net/Documents/latest/UCDlist.html
> is in the PR status, and will be moved to IVOA Recommendation after an 
> appropriate action on the words concerned.
> 
> The rule mentioned above is violated for the following ucd1+ words:
> 
> E | phot.fluxDens               | Flux density (per wl/freq/energy interval)
> E | phot.fluxDens.sb            | Flux density surface brightness
> Q | phys.atmol                  | Atomic and molecular physics (shared properties)
[SNIP]...
> Q | phys.energyDensity          | Energy-density
> Q | phys.massToLight            | Mass to light ratio
> Q | phys.massYield              | Mass yield
> 
> because of the already existing words
> phot.flux
> phys.at
> phys.energy
> phys.mass
> 
> In order to reach a rapid convergence on the reformulation of these 
> words, I?m suggesting a possible solution for each of them in the list 
> that follows:
> 
>    Present                       Suggested new
> E | phot.fluxDens               | phot.flux.fluxDens  or: phot.flux.density
> E | phot.fluxDens.sb            | phot.flux.fluxDens.sb  or: phot.flux.density.sb
The second formulation seems more logical but then fluxDens atom desapear,
is this a pb?
[SNIP]
> 
> The other possibility for the phys.atmol.xxx group is to suppress the 
> word phys.at
why not modifying phys.at.xxx group to phys.atom.xxx
> 
> Please let me know your opinion and/or your suggestions.
> 
> Andrea
> 
> 
> ============================================================================== 
> 
> Andrea Preite Martinez                  
> andrea.preitemartinez at rm.iasf.cnr.it
> Istituto di Astrofisica Spaziale        Tel.:+39.06.4993.4641
> Area di Ricerca di Tor Vergata          Fax.:+39.06.2066.0188
> Via del Fosso del Cavaliere 100         Cell:+39.320.43.15.383
> 00133 Roma                              CDS :+33.3.90242473
> ============================================================================== 
> 
> 
> 
SY
-- 
Pierre
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