Re: VOConcepts ...

Hi,

Andrea Preite Martinez wrote:

> Tony, Doug,
>
> with the VOEvent meeting approaching, I sent a draft document to the
> chairman of the VOEvent WG concerning "concepts and objects" and the way
> they could semantically and syntactically be represented in VOEvents.
>
> The document is still in the form of a "personal note" in the sense that
> it should be considered as a personal contribution to the upcoming
> meeting (after an exchange of mail on "processes" with Rick Hessman).
>
> I'm working to transform this "personal draft" into a IVOA-Note to be
> distributed and discussed within the WG. Meanwile, I took the first
> comments from Rick and Doug already into account ... and put the
> document in the present form in the UCD page
for further comments?
>
> http://www.ivoa.net/twiki/bin/view/IVOA/IvoaUCD
>
> Latest documents:
> The IVOA Standard Vocabulary Version 0.4 (20051201)
I am very disturbed by the fact that the same "thing"/"concept" can be represented in two way :

Extinction or absorption	phys.absorption
Acceleration			phys.acceleration
OR
Generic absorption of wave or particle	process.absorption
Acceleration (particles, ..)		process.acceleration

what is the distinction between them?

Is there any plan to construct a list for the category "photometric filter" which cyclically reappear in UCD discussion? ;-)
>
> Cheers,
>
> Andrea
>
> ==============================================================================
>
> Andrea Preite Martinez
> andrea.preitemartinez-at-rm.iasf.cnr.it
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>
>

best regards,

-- 
Pierre	DIDELON