This is the repository for W3C Community Group on dataspaces.
Report: https://w3c-cg.github.io/dataspaces/
We invite you to participate in identifying and proposing challenges in the area of dataspaces. Both basic scientific research and practical experience are welcome. These challenges will help the dataspace community in several ways: Understanding pain points, building consensus, propose solutions, and shape future work.
The challenges that made it into the draft CG report are the basis for the Call for Papers of the Semantics in Dataspaces 2026 workshop.
If you’d like to support / join the community group and subscribe to the mailing list, visit our community group page at W3C.
The following events and event series have been identified by this community group (ordered descending by date):
| Name and Link | Organizer | Unique Focus Summary | (Next) Date | (Next) Location |
|---|---|---|---|---|
| Semantics in Dataspaces (SDS) Workshop Series at ESWC | Pieter Colpaert, André Pomp, Edward Curry, Stefan Decker, Paul Moosmann | Scientific (peer-reviewed) publications with proceedings, deep interaction with Semantic Web community, annual meeting of the W3C Dataspaces Community Group | May 10th or 11th, 2026 | Dubrovnic (Croatia) |
| The Solid Symposium | The Solid Symposium (Chaired by the University of Strathclyde, locally organised by The Open Data Institute) | The symposium brings together individuals from science, business, the public sector and academia to discuss and learn about the latest developments in Solid, and related technologies in the Linked Web. The event provides a platform to discuss practical applications of Solid, share best practices, and exchange ideas for future innovations. | April 30 - May 1, 2026 | London (GB) |
| The Solid Innovation Tournament and Hackathon | The Open Data Institute | The ODI is organising an innovation tournament that will engage 200 participants in creating prototype applications for Solid across sectors, including healthcare, government services, and social good initiatives. | April 27-29, 2026 | London (GB) |
| In person meeting of the Linked Web Storage Working Group | The Open Data Institute | The mission of the Linked Web Storage Working Group is to enable the development of web applications where data storage, entity authentication, access control, and application provider are all loosely coupled, as opposed to the web of today where these are typically all tightly coupled and changing one requires changing all, sometimes at the price of all past data. | April 27-28, 2026 | London (GB) |
| ENDORSE | Publications Office of the European Union | October 8-9, 2025 | Brussels (BE) | |
| SEMIC | European Commission | November 25-26, 2025 | Copenhagen (DK) | |
| EBDVF | BDVA | November 12-14, 2025 | Copenhagen (DK) | |
| Data Spaces Symposium | Data Spaces Business Alliance (BDVA, Fiware, Gaia-X, IDSA) | March 11-12, 2025 | Warsaw (PL) | |
| Data Sharing Festival | CoE-DSC | February 4-5, 2025 | The Hague (NL) | |
| AIOTI Workshop on Semantic Interoperability for Digital Twins | ERCIM | February 5-6, 2025 | Biot (FR) | |
| Interoperability in Data Spaces Workshop Series | ERCIM, IDSA, SWC, BDVA | October 1, 2024 | Budapest (HU) | |
| Workshop on Enterprise Interoperability for Industrial Data Spaces (EI4IDS 2022) | Marten van Sinderen, Patrício de Alencar Silva, João Moreira | March 23-25, 2022 | Valencia (ES) | |
| Solid Symposium | Leiden University | A plethora of sessions related to the Solid protocol (dataspaces, privacy & security, fair data) and also Scientific (peer-reviewed) publications | April 24-25, 2025 | Leiden (NL) |