TCG Meeting - face-to-face - June 2 2025 @ 09:00 (College Park, Maryland, USA timezone) / 13:00 UTC

• location
  • Edward St. John Learning & Teaching Center
  • building 226, UMD Campus ( see here for details).
  • room 1309, on the first floor

• conf details
  • Zoom Link: https://umd.zoom.us/j/93898381676?pwd=To8zN3mXgRbrbSdWJyl8ZoApazsPqY.1

Attendees

• Attendees : Josh, Tess, Judy, Marco, Sarah, Gus, Mark Sabatian, Anne, Marcus, Janet, Francesca, Pierre, Renaud, Grefory, Gilles, Tamara, Andre, Mark K, Adrian, Yihan, Mathieu, Pat, Baptiste, Jesus, Bruno
• Regrets : Steve Groom

Actions

• Sarah - coordinate session change with DCP/Operations
• OPEN - put together a template for call for proposals ; model after DAL

Agenda

• IVOA Northern Spring June 2025 Interoperability Meeting (last minute details):
  • 159 registered, 32 in person, ~3/4 remote
  • Logistics ... some changes to agenda
    • Sarah - one possibility - Wed for Adrian/Brian (send email); move another topic to TuesdaySemantics session - Markus to chair (requested by Baptiste at Marco's suggestion)
      • Make Thursday a DSP/Operations session; group will meet and make it so
    • Sessions with local/in-person chair - in place for the most partRan through program and checked that there were local chairs
      • Operations needs a chair since Steve couldn't make it; Sarah will be the DSP/Operations chair in person and Tamara/Sarah will touch base
    • Major version transitioning change - Marcus talk; good for TCG to attend/participate
  • IAU talk
    • locally managed by Prya; Bruce can't attend Interop
  • "charge to WG/IG" slides: Opening plenary, 15:30 EDTDM open session - TCG come and stay open minded ... an important topic
    • possibly run from a single laptop; prefer in-person attendee to present
  • Charge to the WGs/IGs: Opening ... post presentation; walked through - all covered
  • Sessions - Get PDFs up before the session so that remote participants can follow along
  • 2 rooms - where we're mtg for TCG and upstairs is the larger one
• (standing item): documents on track
  • RFC
    • VOEvent-2.1 - RFC page - status check; Nearly there, Missing 2 votes - DM & Registry - close out this week
    • StandardsRegExt-1.1 RFC page - Status check; good progress - discuss few open topics in registry session
  • EN
    • any? - Radio Note close - expect soon after the Interop
  • Errata
    • any?
  • VEPs
    • any? - 2 VEPS Marco working -- ADS & one other

• Call for abstracts: feelings (round table)
  • Set up on web page for this meeting; 11 in the end; big fraction from ppl who knew about IVOA; How much work - not that much; Should we keep it ?? JE said yes - keeps things open to newcomers and generaal audience; MCD agreed but did cause some confusion about whether DM group should advertise on their own or wait for input from the main page.
  • How do we make it along with usual call from contributions that come to the list?
    • MD suggested a template for calls for presentations at the Interop; that all WG/IG chairs can use it. Added action.
    • GM suggested that after an exchange that first you put the persons name and later you come back with the abstract - Marco says yes, just how you set permissions. GM also suggested that a tag get added for the group after the initial input.
    • Renaud noted that the wiki is important for the IVOA memory; Marco - no intention to move away
    • Using or not using Indico ... and do we want to be tied to the DB;; needs further discussion
• Documents Standard: revision, status and discussion
  • ivoatex porting
  • needs some revision ... somewhat out of date - Markus ported doc & pdf version to ivoatex. Identified some issues in a meeting of 4 (Marco, Tom, Markus, xx)
  • How to make the process less clunky that the twiki page - leverage on github issues. Discussion is new. Worn't be the normative part ... non-normative appendix is favored so far.
  • MD - Idea/suggestion for new documents through Github over wiki comment management... MD outlined one path that closely matches the current workflow using GitHub using issues; TJ & JF had comment that organized things differently that focused on branches and merges; PD said that MD approach kept things close to current thread and woudn't make these more complicated; GM outlined the ADQL thread in Github that he's using with tags that make it easy to see the differences with the original doc. Still an open topic for more conversation.
• Major version transitioning: status, session and discussion
  • github repo
  • session on Tuesday Jun 3 @ 16:00 EDT
  • Quick summary: MD - came out of P3T - suggested away from XML; break current protocols; don't make change lightly. Trying to convince that we can't do it lightly; present gist of the document - session page links to it. I think we need to be able to do it ... (e.g., simple image, UCDs).
• New web page: status, session and discussion
  • staging test location
  • github repo to contribute
  • session on Wednesday Jun 4 @ 16:00 EDT
  • Quick Summary : MM trying to get it ready - ready to roll out; after baseline there are other components that need transoformation too. Need an effort in the content - up to date and relevant. Jeremy looking for feedback on new site - where to. Have a public web site that ppl can go to. Looking for feedback. Apps have been updated with cleaned up links.
• Interop topics and expected outcomes - round WG/IG report - WG/IGs plaease review/correct!!
  • Apps - Pierre - evolution of VOtable and how to phase problem of using DM time coordinate. Mongo/MIVO to express what is needed from theses DMS; Dips evolution from CDS - space plus frequescy or time extension to work with large surveys; evolution of large catalogs that are coming - parquay; Hats to handle large catalogs in hierarchical way - split in regions to make cross correlations to distribute sw; MD and VOTable; sw libraries and status of Pyvo and other software libraries;; joint with time domain. Also Bruce's discussion in Apps session on radial velocity...will their be changes asked for?? Not sure. echelle spectral formats.
  • DAL - Gregory - 3 topics. 1) DALI - activity on github - mostly ready for WD; TAP reaching good shape for this doc; 2) Spectral lines - 2 mtgs focued mtgs ... freeze line-tap and go on with slap with some updates. 3) Obsobjsap;; Also PD - taking OpenAPI to next level from p3t discussions;; Pat - following different prototyping to define common spi if they are present. Covers VOSI, DALI, TAP ... goes to 2.1 version of Tap. Around users creating tables and use cases with that common thread. Further discussion about versioning between PD/MD ... and more needed. Gilles added to the discussion about versioning with DOIs. MM added DOIS need minting.
  • DM - Mark - 3 sessions: 1) 2 talks - Mango std update/readiness for RFC; Update on COAM project 2) Obscore extension - turnover from work done in interest groups and turning into WGs to move forward. Semantics for vocab - ; registry for discovery - few slides from Renaud; DAL for access;; Each group discusses compatibility with their work. Expecting a discussion ... input from WGs ... How to move forward? 3 recs or 1 rec?? 3) Extending from other projects ... interfaces between DMs and other working groups - need to be fixed in arch of our group;; Looking for consistent interface to various uses. CAOM, Mango, Cube focused toward applications. There are a lot of layers - where to put the solution???
  • DSP - Sarah - working provenance. New documents -single sign on initiated - connecting what is stable enough to become a standard. Authentication and Authentication are under discussion. Work on interoperability of science platforms.
  • Registry - Renaud - UAT adopted as a vocabulary - can now be used to discover terms. StdRegExt 1.1 in progress. Try to build interest in this standard ... most comments were replied and a presentation about it. MD has an idea to use this standard for imbedding open api specs. Interested in PD comments. To be discussed in Reg session. Docregext - new stds for educational resources. Discover data of a certain type with PyVO in initial development. RegTAP1.3 will allow that. Also an opportunity to add new things ... Gilles will contribute with a presentation. Continue with onboarding efforts - workshop for data providers to register data and services. Henrik has a presentation. 1.5 hr hackathon - compare content of several registries for operational efforts. MD on how to register event streams with temporal coverage.
  • Semantics - Anne - mostly Planetary focus
  • DCP - Gus - 2 goals: 1) promote data origin note 2) DOIs - 3 talks on relationships with IVOA; 2 talks on DOI usage; discussion on DOI Note in the works.
  • Education - no session
  • HEIG - JE - Part of Obscore IG
  • Radio - MK - Part of Obscore; CAOM
  • Time Domain - Jusy - related to Apps
  • Ops - Tamara - one talk - Henrik presentation
  • KDD - Andre - Keep discussion for fall meeting
• AOB
  • REC/EN track alerts? -> use the new website?
    • Jeremy suggested NewLetter; MD suggests an RSS feed ... for new standards, blog articles, and other uses. Accessible by WG/IG chairs to add indepepdently. Pierre - Various notes should be more visiible too.
  • GWS -> DSP name changes: there are still pieces to update
    • Name changes has been done; report if you see old name
  • astronet.ru publishing registry: status
    • Renaud - That publishing registry has been down for ~4 years. Last March folks said they had lost code and replacement promised in 3-5 months (end of summer) this should be corrected. Cone search was in this registry. MD suggested we should retire RofRs that are unattended. Can easily come back when they are ready.
• Date for the next TCG vconf(s)
  • Next meeting: vconf, 24-26 June @ 20:00 UTC -> pick one of those days
  • (informal) break vconf, 29-31 July, for those who want -> preferences?
  • after that we'll resume vconfs at the end of August

TCG meeting dates, as well as other relevant meetings, should always be reported also at the IVOA Events page.

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