Revised ImageDM-ObsCore architecture

[Douglas Tody]

On Tue, 12 Nov 2013, CresitelloDittmar, Mark wrote:

> Just a note on this point.. side bar though it is..
>
> On Tue, Nov 12, 2013 at 8:38 PM, Douglas Tody <dtody at nrao.edu> wrote:
>
>> year and we urgently need to get on with development for real projects,
>> with some expectation that the standards will not completely change out
>> from under us while this is going on.  Some sort of interim
>> update/solution is not an option at this point.
>>
>>
> My view on the document to be turned over Friday, is that this is the next
> DRAFT
> of the ImageDM which addresses the ObsCore link and other feedback from the
> previous draft.  I expect the utypes list will reflect the work you have
> been doing
> with Francois and Mireille.  This drop is to provide the basis to support
> the work
> you mentioned.

I agree with all this - it is just an updated draft, and will of course
continue to evolve.  However we need something stable, hopefully close
to the final architecture, integrated with SIAV2, to support Cube
project development for at least the next 4-6 months while the standards
evolve.  The outside groups involved in implementation cannot deal with
our continually evolving internal standards development process.  An
occasional, e.g., yearly update is probably ok.

>> From that point, I will take lead on it's further evolution.. wherever that
> goes.
> I plan to make a list of topics to discuss, from my own review, and the
> comments
> by others (Jose, Arnold, Mireille).  I cannot guarantee that there will not
> be
> significant changes to the overall model after this drop.

Of course there can be no such guarantee that things won't change
significantly in response to an open discussion, I just ask that we try
to minimize the impact on outside groups once we start to have real
take-up outside the VO projects.  I would hope that NRAO and ALMA (not
mentioned above) continue to have some input into further evolution as
well; we are possibly the largest producer of cube data directly
involved in this project, have a critical and immediate need for these
standards, and will be doing a lot of relevant development over the next
year.

 	- Doug