DM Running Meeting notes - 20250916

[Kelle Cruz]

Regarding TODO for Spectrum and DATE-BEG/END:  What *was* decided in
Baltimore? Happy to help with this if needed.

Kelle

On Thu, Oct 30, 2025 at 2:17 PM CresitelloDittmar, Mark via dm <dm at ivoa.net>
wrote:

>
> Attendees:
>
>    - MS, MCD, LM, PD, ML, TD
>
>
> Agenda:
>
>    - Roadmap Goals:
>       - MANGO 1.0:
>          - In RFC: https://wiki.ivoa.net/twiki/bin/view/IVOA/Mango10RFC
>             - comments from DCP only
>                - observation time is complex object; proposal to replace
>                the 1 object with type attribute
>                   - LM exercised it, works with vo-dml
>                   - Merge request is open:
>                      - *ACTION: MCD- review merge request and then LM can
>                      move forward*
>                   - datalink class
>                   - added at beginning of document for static URLs;
>                   - everyone is implementing datalink and it is
>                   recommended to remove the class from the model.
>                   - no replacement
>                - working implementation on Simbad
>                   - TD: any potential issues? or looking good?
>                   - LM: very simple to provide cone search annotated;
>                   code is ready on his machine.. in discussion with Simbad people to put into
>                   production
>                      - possible interop presentation APPS
>                   - CAOM2.5
>          - PD:  over summer has spent time on CAOM document (2/3 done)
>             - should have time in next week or 2 to finish (end-of-month)
>             == ready to publish to document repo
>             - no time to dig into TD and HE extensions; anticipates HE to
>             be an effort
>          - PD: Question
>             - serialization of model (in XSD), this was part of the spec
>             itself.
>             - have XSD, and json serialization (not schema)…
>             - ML: Mango does not have a schema.. serialization is
>             expected to be via Annotation syntax.
>             - TD: should be brought up in the TCG.
>                - with multiple formats.. have to be all the more careful
>                and they NEED to be in sync.
>             - Q: is there a place in ivoa.net. for the json schema.?
>          - PD.. goals (last meeting)
>             - Document status?
>                - *TOPIC: Markup in VO-DML .. need a policy for this in DM
>                Working Group.*
>                   - *no progress on that with PH*
>                - *Goals From Last meeting:*
>                - finish document
>                - review work Severin did, query CAOM holding CDC/MAST,
>                determine which fields in use in various fractions.. to identify usage
>                level of current fields..
>                   - inform possible deprecations.
>                - new version of document in early summer
>                - working forward from there.. RFC for Fall seems viable
>                from document standpoint, but will need a lot of attention/review from
>                community.
>             - ObsCore 1.2 / Extensions:
>          - ML: had some comments from radio partners which are inserted
>          into the doc and a new version is available.
>          - ready to go for TCG review. (unofficial).
>          - *ACTION: touch base on how to proceed.*
>       - HEIG Note:
>          - CXC added X-Ray use cases
>          - MS/Bruno added (July) some content from Cherencov << on Git
>          repo.  reviewing/integratiing comments from IE
>          - are vocabularies involved (non-ObsCore)
>          - IRF/RSF dependencies
>          - 3 Sections:
>             - ObsCore as now (with tweaked definitions)
>             - Extension Content for HE
>             - …
>          - ML:
>             - CfA group wants to distribute every file of interest, along
>             with event list
>             - discussing point that it is difficult to characterize
>             advanced data products..
>             - these are not direct observational data products - going
>             this way will make for very complex queries in ObsCore and therefoe not
>             serving the interests/intent of ObsCore.
>             - Do not see a clear use case for when searching for advanced
>             product (probability dist.) what path does the query take?
>                - from Observation (date/target) => see all analysis
>                products
>                - or direct query of the products
>             - DM WG Task
>             - Discuss where the proper place for their ‘proposals’ as
>          - TD: clarifying question
>             - the use cases themselves are describing a query which does
>             not start with the observation?
>             - PD: observable axis is a quite different thing in these
>             advanced products.. so maybe not obscore
>          - MIreille
>          - working modelio modeling
>          - would like to see some types in the Template (UCD, Units)
>          - for VO-DML 1.1: has the ivoa model extended to include these?
>             - PD: paul has integrated some of these into the ivoa model?
>             - ML: how do we proceed?  Do we suggest extensions?  This
>             should be distributed with vo-dml?
>             - PD: some add to ivoa base model (so trivial to reuse).  Suggests
>             we try that and see how that works.
>                - Has some available.. can add as pull request for Vo-dml
>             - Spectrum
>          - file Erratum for VOCLASS issue
>          - follow-up on action for DATE-OBS issue: proposed additions of
>          DATE-BEG/END for alternative representation of this concept.
>          - *TODO: Implement what was decided in Baltimore. (MCD)MS, *
>       - Next Meeting:
>          - 3rd Tues = Oct 21 @20:00
>
>
>
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