[SEMANTICS] Re: semantics

Dear members of the "theory" mailing list,

as the deadline for collecting list of words and concepts (http://www.ivoa.net/twiki/bin/view/IVOA/TheorySemanticVocabulary) is approaching at high speed, I am just sending some comments coming from our view with the model of the Galaxy developed in Besançon (see http://www.ivoa.net/twiki/bin/view/IVOA/GalacticStellarContentSimulator).

I have added some items on the twiki page and give some comments thereafter.

The additions are :

1. add Galactic model to "name of code"
2. add "stars" to "subject" comment: in our mind, this is different from "star" ; "star" as a simulation subject can be understood as modelling the structure, interior, ... of a star, whereas "stars" infers modelling stellar population(s). Note that, may be in a different context, VOEvent does not make some difference between both (http://www.ivoa.net/internal/IVOA/VOEventVocabulary/objects.html).
3. add "Monte Carlo" and "Stellar population synthesis" to "type of algorithm"
4. add "catalogue of objects" and "object statistics" to "result type" ;

Some further comments/possible additions:

5. can "nuclear reactions" be added to "physical process" ?

6. in "result type", may be "table" should be specified a bit more ?

7. should not we distinguish between result "type" (which could be "snapshot", "animation", " catalogue of objects", "object statistics", ...) and result "format" (which could then be: "FITS", "VOTable", "MPEG", "CSV", ...)

8. "algorithmic parameters" understood as initial and boundary conditions can be virtually any physical or astronomical quantity ; we have added some among the most important input parameters for the model of the Galaxy

9. I agree with Franck's remark about "Result parameters":

Franck.LePetit-at-obspm.fr wrote:

> ...
>
> 9 --- Result parameters
>
> I do not see the purpose of this UCD.

With best regards,

Bernard Debray

-- 
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