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The mission of the Spatial Data on the Web Working Group is to clarify and formalize the relevant standards landscape. In particular:

  • to determine how spatial information can best be integrated with other data on the Web;
  • to determine how machines and people can discover that different facts in different datasets relate to the same place, especially when 'place' is expressed in different ways and at different levels of granularity;
  • to identify and assess existing methods and tools and then create a set of best practices for their use;

where desirable, to complete the standardization of informal technologies already in widespread use.

Ogc logo.jpg
The Spatial Data on the Web WG is part of the Data Activity and is explicitly chartered to work in collaboration with the Open Geospatial Consortium (OGC), in particular, the Spatial Data on the Web Task Force of the Geosemantics Domain Working Group. Formally, each standards body has established its own group with its own charter and operates under the respective organization's rules of membership, however, the 'two groups' will work together very closely and create a set of common outputs that are expected to be adopted as standards by both W3C and OGC and to be jointly branded.

Read the charter and join the Working Group.


Information about each deliverable is recorded in a separate page

Wide Review

Please record efforts to secure review of documents in the Wide Review page

Evidence of adoption


Expected timeline for remaining deliverables as of July 2017:

Spec Last TR Publication Final stage Implementation report Next step
Spatial Data on the Web Best Practices Note NOTE Publication as a final Working Group Note mid-September 2017
Time Ontology in OWL CR REC Implementation report Publication as PR beginning of September 2017
Semantic Sensor Network Ontology CR REC Usage document Publication as PR beginning of September 2017
QB4ST: RDF Data Cube extensions for spatio-temporal components Note NOTE Publication as a final Working Group Note end of July 2017

Useful Pages

Infrastructure & Contacts

The WG's main communication channel is its mailing list. This is publicly archived but only WG members may post to it.

You are welcome to send comments to the WG through the public comment mailing list [archive]

The WG creates and maintains editors' drafts in its GitHub Repository.

WG co-chairs: Kerry Taylor, Australian National University, and Ed Parsons, Google

Team contacts: François Daoust (W3C), Scott Simmons (OGC)

You can contact the chairs and team directly via <>

Full list of WG participants

GitHub repository


See the separate Meetings page for links to agendas, minutes, dial in details etc.

No more Face to Face meeting planned for the Working Group. The WG held face to face meetings twice a year, typically at OGC TC meetings and W3C TPAC. The creation of a follow-up Spatial Data on the Web Interest Group within W3C is under discussion. If created, that interest group will meet at TPAC 2017 in Burlingame, California, 6-10 November 2017.

See also the program of Technology Talks.

Publications, Presentations, Media about the Working Group