MPAWG meeting minutes
Find the Rolling meeting minutes document here: https://docs.google.com/document/d/13ktZ84b2BROxL4GhzNESNgn2h2bEvPUiZleEmq8CyY8/edit?usp=sharing
Participants: ~8/9 people showed up :-), again no list :-(
1. Introduction
Participants introduced themselves, and Knut provided an update on the current state of the work.
2. API discussion
There is a clear demand for an DDI-API. In the next meeting we will look into the API specified for SDMX. Probably one would like to start with requesting a list of available concepts from an endpoint.
Participants: Brigitte Mathiak, Wolfgang Zenk-Möltgen, Dan Smith, Olof Olson, Alessandro Morchietta, Toni Sissala, Xiaoyao Han
1. OAI-PMH Recommendation
Knut introduced a draft retrieval section for the OAI-PMH recommendation. The group discussed challenges in identifying metadata types when accessing an endpoint using ListMetadataFormats (https://openarchives.org/OAI/openarchivesprotocol.html#MetadataNamespaces ). The properties metadataPrefix, schema, and metadataNamespace can be used to identify the metadata format (e.g., DDI-Codebook 2.5; DDI-Lifecycle 3.1, 3.2, 3.3; DDI-CDI).
There are valid use cases for having multiple metadataPrefix values, along with corresponding schema and metadataNamespace. The group agreed that no changes should be recommended for existing installations. Instead, guidance should focus on what constitutes best practice.
Knut volunteered to provide usage statistics for the next meeting.Dan reported on an exchange with Knut regarding the DDI Agency Registry. Currently, there is no machine-readable list of agencies from which a list of known endpoints could be compiled. This could be a task for the next DDI developers’ hackathon (https://github.com/orgs/ddi-developers/projects/6 , https://github.com/ddi-developers/.github/issues/18 ).
Such a list would enable discussions on how different endpoints for OAI-PMH, FAIR signposting, and others should be recorded in the registry. At present, a record looks like this: https://registry.ddialliance.org/Agency?agencyName=us.dan
2. FAIR signposting Recommendation
Short discussion about the options to identify the relevant sitemap for landingpages (containing links to DDI metadata)
Participants: Approximately 12 attendees (Names not recorded. For future meetings, I propose that each participant makes a comment upon joining. Then I can compile a list afterwards.)
1. Organizational Matters
Knut informed the group that all relevant links are available on the public Wiki page: https://ddi-alliance.atlassian.net/wiki/x/AQDk4 .
He asked whether all participants have access to the shared Google documents.
2. OAI-PMH Recommendation
Knut presented the drafted sections on “Minimal Use Case” and “Discovery.”
Dan suggested including the DDI Alliance registry and volunteered to draft a paragraph on this.
Knut will prepare the “Retrieval” section for the next meeting.
3. FAIR Signposting Recommendation
Olaf presented the drafted sections on “Discovery” and “Retrieval.”
Knut volunteered to draft a similar section for http://re3data.org and potentially for the DDI Alliance registry, focusing on how to locate sitemaps.
MIME Types Discussion:
Registration: The group discussed whether the DDI Alliance should register MIME types for DDI metadata—either one per product or one per product and version.
→ Knut will contact the Technical Committee to seek guidance on how to proceed.
Multiple Standards in RDF: The group discussed which MIME type should be used when multiple standards are included in a single RDF object.
→ No decision was reached. Currently, no metadata with such characteristics has been published.
Present:
Alessandro Morichetta (IReSP), Alireza Davoudian (SND), Andreas Daniel (DZHW), Brigitte Mathiak (GESIS),Dan Smith (Colectica), Darren Bell (UKDS), Farrah Sanjari (StatCan), Jennifer Zeiger (ICPSR),
Jon Johnson (CLOSER), Judy Gerber (MITRE), Julie Lenoir (INED), Knut Wenzig (DWI Berlin), Matthias Umkehrer (IAB),Mihaela Tudose (LIfBi), Olof Olsson (SND), Pascal Heus (Codata), Shipra Suman (UCL), Tobias Koberg (LIfBi), Toni Sissala (TAU), Wendy Thomas (ISRDI), Xiaoyao Han (DIW Berlin)
Proposed Agenda:
Member introductions: interests and expectations, work plan discussion
Organizational matters: chairperson selection, collaboration tools, meeting frequency
Coordination with the Developers Group
Planning for MPAWG@EDDI2025: in-person meeting and lightning talk
Report for the DDI Alliance Newsletter
Member introductions: interests and expectations, work plan discussion
Participants expressed a wide range of interest and expertise. Keywords: DDI-Codebook, API, GraphQL, OAI-PMH, DDI resolution services, DDI registry, visibility of DDI objects, harvesting, FAIR signposting, AI
Organizational matters: chairperson selection, collaboration tools, meeting frequency
Main collaboration tool: Google Drive,
Frequency: one meeting per month, next meeting end of October,
Chair: Knut Wenzig volunteered and offered that anytime people are welcome to chair or co-chair
Coordination with the Developers Group
Two members of the Developers group were present, Knut will reach out to the Developers Group and coordinate future activities (e.g. mutual attendance at a meeting)
Planning for MPAWG@EDDI2025: in-person meeting and lightning talk
At least 6 members would be at EDDI 2025, so the slot on Thursday will be used: https://events.geant.org/event/1879/timetable/#day-2025-12-04
Lightning Talk on Tuesday (https://events.geant.org/event/1879/timetable/#day-2025-12-02 ) will be prepared by Knut Wenzig
Next meetings:
Knut will draft a section on discovery of OAI-PMH endpoints (via http://re3data.org ): https://docs.google.com/document/d/1NsUJMqsJQHaKIxxZUuQ2ZqLwIprZB_JIegOtNH1MXNM/edit?usp=sharing
Olof volunteered to make a draft of some signposting examples and recomendations: https://docs.google.com/document/d/1nF-eUjl3sNADrhiirQpu74ONFnC9DMr5o10_Jq575JM/edit?usp=sharing
discussion whether sub-groups (e.g. OAI-PMH or REST API would make sense)