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WMF GLAM report

Structured Data on Wikimedia Commons

By SandraF

Multilingual captions are live on Wikimedia Commons!

File captions on Wikimedia Commons, a first feature of Structured Data on Commons

In January 2019, multilingual captions went live on Wikimedia Commons. They are the first feature of Structured Data on Wikimedia Commons.

Captions can be added and edited on file pages and during upload of files via the UploadWizard. It is not yet possible to add captions via batch upload tools like Pattypan.

To learn more about captions and how to use them, see the on-wiki documentation. Please add specific suggestions on how to use captions for files uploaded via GLAM-Wiki projects!

Updates about GLAM pilot projects for Structured Data on Commons

While the Structured Data on Commons development team is squashing the last bugs before releasing more features on Wikimedia Commons in the upcoming months, preparations continue for GLAM pilot projects. The current list of confirmed pilots is available on Wikimedia Commons, and more upcoming pilots are being prepared and discussed.

Example of a digitized map uploaded to Wikimedia Commons in 'unstructured data', but prepared for easy conversion to structured data later

Among others, Wikimedia España will contribute with a pilot project on historical maps and aerial photographs from the Instituto Geográfico Nacional. Recently WMES has uploaded a first batch of almost 10,000 digitized maps from the Mapa Topográfico Nacional to Wikimedia Commons.

This current upload is still in unstructured data, but was done in a format that should be easily convertible to structured data later:

  • The files are described with the {{Map}} information template on Wikimedia Commons
  • Information about the maps on Wikimedia Commons points to Wikidata items for the location shown on the map, the map type, place of publication
  • The file pages contain Wikidata-powered {{Institution}} and {{Creator}} templates.

In preparation for Structured Data on Commons, new Wikidata properties are discussed and created. Structured Data on Commons will include machine-readable copyright information, and for this purpose several copyright-related Wikidata properties now exist, including a few recent ones:

Description of copyright is documented on Wikidata at Help:Copyrights, and this system will likely inspire the way in which copyright of files will be described in structured data on Wikimedia Commons.


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