English subtitles for clip: File:Introduction to Structured Data on Wikimedia Commons.webm

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This is Wikipedia.

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It is illustrated
with many images.

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Images that are collected
on another wiki --

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Wikimedia Commons,
a sister project of Wikipedia.

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Wikimedia Commons is a media repository

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with tens of millions of files.

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A lot of these are made, and collected,

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by Wikimedia volunteers.

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Wikimedians around the world also partner

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with Galleries, Libraries,
Archives and Museums.

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Many files are contributed
through these partnerships.

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Just like on Wikipedia,

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the files on Commons are free
to be re-used by anyone.

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You often see them as illustrations
on various websites.

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Now, how do you make more
than 50 million free files useful

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for as many people as possible?

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How do you make sure
that anyone in the world

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can find an image they need,
no matter which language they speak?

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The answer is
Structured Data on Commons.

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Structured data
is information about a file

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that is easy to understand by humans

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but is also machine-readable --

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easy to understand
and process by computers.

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This is where Wikidata comes into play,

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Wikimedia's free knowledge base.

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It contains data items, or entities,
about almost anything in the world.

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Each file on Wikimedia Commons
can now be described

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with entities from Wikidata.

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Unique identifiers help to distinguish
different things,

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even if they have the same name.

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This image shows a kiwi,

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and you point it
to the Wikidata entry for the Kiwi fruit.

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This kiwi is not a New Zealander,
and not a flightless bird!

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All Wikidata entities are multilingual

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so it doesn't matter
in which language you search.

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These entities are also linked data.

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Wikidata describes relationships
between things in the world.

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So you will be able to find
photos of foods named after women,

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and of different kinds of cabbage rolls
from cuisines around the world.

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Concepts from Wikidata
are also linked to other databases,

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for instance the Library of Congress,
iNaturalist,

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and the Internet Movie Database.

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Many of these databases
link back to Wikidata as well!

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Structured data
is already part of Twitter bots,

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museum timelines,

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and tagging games.

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As a software developer,
you can freely take this machine-readable,

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multilingual and linked data
and use it in all kinds of applications.

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And most of all:

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anyone in the world can now
search for files on Wikimedia Commons

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in their own language!

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Help by contributing
free files and structured data

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to Wikimedia Commons yourself

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to make more files

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more useful

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to more people

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and more machines.