Re:

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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