spectroscopic data model

[Dubois-Felsmann, Gregory P.]

Hi, Markus,

I haven't been following the spectral model very closely until recently.  Do you have a very rough sense of when a proposal based on the Cube and/or Dataset DM efforts could reach the content level of being ready to act as a successor to SpectralDM?  (Not including time to do final polishing, voting, etc.)

Is this an aspiration for the Autumn (Northern) meeting?

Thanks,
Gregory

________________________________________
From: dm-bounces at ivoa.net <dm-bounces at ivoa.net> on behalf of Markus Demleitner <msdemlei at ari.uni-heidelberg.de>
Sent: Monday, June 15, 2020 11:44 PM
To: dm at ivoa.net
Subject: Re: spectroscopic data model

Vandana,

On Mon, Jun 15, 2020 at 04:30:07PM -0700, Vandana Desai wrote:
> I have a question about IVOA spectroscopic data model.
>
> We at IRSA are starting a project that will require coding to a spectral
> data model, and I was hoping for some clarification on the stability of the
> latest SpectralDM.
>
> I see this:
> http://www.ivoa.net/documents/latest/SpectrumDM.html
>
> which is V1.03 from 2007.

This is an oversight.  It should be pointing to 1.1, and we'll fix
this.

> But this is listed as the most stable version:
> http://www.ivoa.net/documents/SpectrumDM/20111120/index.html

This is the current recommendation.

> I also see this:
> http://www.ivoa.net/documents/SpectralDM/
>
> which is V2.0 from 2016, but is listed as a "Proposed Recommendation".

This was an effort to update the Spectrum DM to cover a few more
cases, but it was eventually abandoned because (I'm simplifying a bit
here) it wasn't quite in line with what the Cube DM would work out to
be, and it was felt that efforts are better spent on the more
general case which will eventually encompass what Spectrum DM 2 would
have described.

That the link beneath the document title in the document repo points
to the abandoned V2.0 again is an editorial oversight, which we will
fix.

So, in short: Please implement against V1.1, and if you find
shortcomings, by all means report them here. They will certainly
inform work on the Cube and Dataset DMs.

Thanks for reporting this,

         Markus