Doubts with the facility name term

[Paul Harrison]

> On 2022-02 -21, at 10:17, Markus Demleitner <msdemlei at ari.uni-heidelberg.de> wrote:
> 
> On Wed, Feb 09, 2022 at 12:58:16PM +0000, Paul Harrison wrote:
>> I would like to point out that this area is also a central issue for
>> the ProposalDM (https://github.com/ivoa/ProposalDM <https://github.com/ivoa/ProposalDM>
>> <https://github.com/ivoa/ProposalDM <https://github.com/ivoa/ProposalDM>>) that is currently in
>> development. It is wrestling with the distinctions between telescopes,
>> instruments and backends and what combinations of them constitute and
>> “observing system”  (which might be the same thing as a Facility if
>> that is to be a useful separate concept…). 
> 
> Interesting.  Given that, could I charm you into running a breakout (or
> perhaps even proper session) on this at the next Interop?  I believe
> ProposalDM might be a good place to properly clarify the concepts that
> we could then attach to the concepts from Obscore, VODataService, SSAP
> and perhaps other places too.  ProposalDM at least is new and can
> build on the previous efforts' experiences.

I am certainly intending to run a session on ProposalDM at the next Interop - My experience so far is that it is rather
difficult to find consensus on the level of detail and granularity that should be in such a model. However,
I think that the Observatories do have significant self-interest in curating what they offer to potential observers, and 
so if some sort of system for managing an indexed vocabulary to identify observing systems can be hung of this then that could be highly beneficial.

Cheers,
	Paul.

p.s. I am quite happy for people to have a look at https://github.com/ivoa/ProposalDM <https://github.com/ivoa/ProposalDM> before the next interop and engage via the usual GitHub issues and discussions…It is at what I would call an “alpha” stage at the moment, there are some  provisional ideas in it, but I think that the general scope is about right. If you look at the vodsl source you can see some comments on the design decisions.
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