Over 60 million
media files on Wikimedia Commons have been enhanced with structured data. This structured data is multilingual and machine-readable. It makes files on Commons easier to view, search, edit, organize and re-use. To achieve this Commons uses Wikibase
, the same technology as used for Wikidata
About Structured Data on Commons
Structured data on Commons
is multilingual information about a media file
that can be understood by humans
, with enough consistency that it can also be uniformly processed by machines
. Files on Wikimedia Commons can be described with multilingual
concepts from Wikidata
, Wikimedia's knowledge base.
A short, beginner-level introduction to Structured Data on Commons (3 minutes 43 seconds)
What Structured Data on Commons does
Structured data on Commons is useful to both content creators and content users and improves access, searchability, exploration and provides new ways to use the content. Over half of all content on Commons has some form of structured data.
- Multilingual: Allows people to easily translate content and provides labels in over 300 languages which are added automatically.
- Accessibility: Provides alt text, text descriptions and other information that makes content more accessible to users with specific needs e.g. blind and partially sighted.
- Searchability: Allows people to more easily find content through better descriptions of the content and what they depict. (coming soon)
- Easier to use on Wikimedia projects: Makes content easier to find and understand across all of Wikimedia’s 300 languages, this leading to more content being used on Wikipedia articles and other Wikimedia projects, providing richer media from more sources to readers. (coming soon)
New ways to explore content
- Connect knowledge from different sources: Allows content from many sources together to provide new ways for people to explore and visualise a subject. (coming soon)
- Explore collections and topics: Collates content to provide new ways to explore collections and topics, unlocking new ways to understand the world. (coming soon)
- Connect to the sources of information: Links to the original sources of content and data allowing people to easily access more information. (coming soon)
- Inside Wikimedia: Allows users to query the data to build powerful educational resources including timelines on Wikipedia. It also creates a framework and checklist to help topics to be well covered and up to date in all Wikimedia projects. (coming soon)
- Usable by other websites and services: SDC data is free and machine readable meaning people can make fuller use of the content on websites, in apps and other. (coming soon)
Improving the quality of information
- Data with references: Data has references to its sources, allowing you to see the original creator of the information and corroborated by third parties. (coming soon)
- Structure: Adding data to Wikimedia Commons upgrades it to the maximum 5-stars in Tim Berners-Lee's 5-star Open Data plan, allowing it to benefit from network effects.
- Queryable: Allows queries to check data quality across 1,000s of files at once, allowing people to more easily identify and correct missing, out of date or incorrect information.
Each media file page on Wikimedia Commons has a 'File information' and 'Structured data' tab.
Add multilingual captions to files
Under the File information
tab, you can add file captions
in many languages: short, factual descriptions about the file, without hyperlinks or wikitext. These file captions make the file easier to find in search, in a structured, multilingual way for both humans and software programs alike.
What is depicted (shown) in a file?
Under the Structured data
tab, you can indicate what is portrayed ("depicted") in the file. In this case: twelve white sugar cubes. The screenshot below is animated, demonstrating how the descriptive elements are multilingual. You can see structured data in a different language by switching your interface language setting.More information: see Commons:Depicts.
Other statements about a file
Also under the Structured data
tab, you can add other bits of descriptive information about the file. This example describes the file's license, creator and quality assessment. All these data elements are properties and items re-used from Wikidata. More information: see Commons:Statements.
Tools to add structured data to files ISA
is an award-winning
tool to help beginners to add depicts
statements and multilingual captions to files. Anyone can create and organize small campaigns and competitions with ISA. Read more
("Add to Commons, Descriptive Claims") is a Wikimedia Commons gadget to help with batch editing. It allows adding depicts
or other statements (including qualifiers) with unique value to a group of files (for example a category). You can activate AC/DC in your user preferences. Read more
is a user script similar to Cat-a-lot
that allows adding limited number of structured data statements to files in a category. Read more
lets you add depicts statements using a game-like interface. You can customize it using specific categories or SPARQL queries.
Structured Data on Commons is powered by the Wikibase
software. Data can be accessed via API; see mw:Wikibase/API
Frequently Asked Questions
What kind of structured data should I add? How should I describe a certain file in structured data?
- For best practices on Depicts statements, see Commons:Depicts.
- For inspiration and examples of other statements, please check the Modeling pages. Feel free to ask questions there and contribute to the documentation yourself. The data model of Structured Data on Commons is a work in progress and is designed by the Wikimedia Commons community.
How can I find files that already have structured data?
You can use the Wikimedia Commons search function to find files with structured data. A few examples:
How can I add structured data to many files at once?
You can use the tools
mentioned on this page; see above.
Last edited on 26 August 2021, at 23:56