theoretical spectra, TSAP, TAP and Apps

[Miguel Cerviño]

Dear Ulrike (and Apps, theory and dal)

Regarding theoretical spectra, there is the TSAP protocol (I suppose  
that TheoSSAP is a similar protocol) that it is included in the SSAP  
documents. It is based in a "format=metadata" query, you can find  
more info an possible extensions to results other than spectra (e.g.  
isochornes) at:

http://svo.laeff.inta.es/modules.php? 
op=modload&name=phpWikiP&file=index&pagename=TSAP

In this page you can also find other services that use TSAP (there is  
at least 12 services, but the list is fairly to be complete).

I completely agree with you about the issue that only VOSpec support  
this protocol. Of course
it is a handicap for the developing of analysis tools, unless  
theoretical libraries are included
"ad hoc" in the applications (e.g. specview case). Of course, I would  
prefer that applications would include simply a TSAP access at the  
same level that a ConeSearch-like access, and that it queries to  
services where the models developers are involved (I suppose that  
Thomas Rauch is involved in your case, as well as some synthesis   
models developers in my case).

Any case, an additional problem is that TSAP (or TheoSSAP) can be not  
directly registered, and that TSAP services can only be tested in  
VOSpec. Carlos Rodrigo has developed a service that browser and  
verify  TSAP services, you can see it at:

http://www.laeff.inta.es/projects/svo/theory/tsap/

Additionally, it is supposed that the TAP protocol can be used  
instead TSAP since it is more general for "generic" tables. There is  
now a discussion in the dal list about the protocol itself. However,  
I have looking for the user cases of the use of TAP protocol and I  
have not find any info in the wiki pages (Would somebody from TAP  
send where the TAP user cases can be found and confirm that really  
TAP would substitute TSAP?). However, the TAP protocol is
still in a final draft process and SSAP is ready, so I again agree  
with you that the it would be fine if current applications would  
accept this kind of TSAP services (and in to establish some mechanism  
to register such services).

Finally, I would suggest you (and others interesting in this issue)  
to also posting his/her comments to the theory IG and to try to  
coordinate additional requirements needed there. As and example, how  
to recover the credits (reference papers) of theoretical spectra in a  
general way and how to recover it from applications... (or any  
additional issue that is highly welcome :)

cheers

	Miguel




El 11/10/2007, a las 9:01, Ulrike Stampa escribió:

> To all architects and developers of SSAP clients:
>
> within the GAVO (German VO) project we implemented the simple spectra
> access protocol for synthetic spectra. When I started testing our
> service I noticed that most of the client tools do not support search
> for theoretical spectra but only query by position and time. So my
> question to the applications working group: Are there any plans or
> on-going discussions about including theoretical spectra? Or any  
> client
> software I do not know yet? (The only one I know dealing with  
> parameters
> for theoretical spectra is VOSpec.)
>
> Otherwise I suggest to take this aspect into account for further
> development.
>
> The base url of our SSAP service is:
> http://vo.ari.uni-heidelberg.de/ssatr-0.01/ssatr?request=queryData&
> To get an impression what parameters theoretical spectra would
> typically  use, you can look at our browser based interface (or  
> contact
> me directly).
> http://vo.ari.uni-heidelberg.de/ssatr-0.01/TrSpectra.jsp
>
> (This service is supposed to comply with SSAP version 1.02. If you  
> find
> anything non-conforming, please let me know. )
>
> Best regards,
> Ulrike Stampa, GAVO