View source for Wikidata:Introduction/kcg

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'''[[w:Wikidata|Wikidata]]''' is a [[w:Free content|free]], [[w:Collaborative editing|collaborative]], [[w:Multilingualism|multilingual]], secondary knowledge base, collecting structured data to provide support for [[w:Wikipedia|Wikipedia]], [[w:Wikimedia Commons|Wikimedia Commons]], the other [[w:Wiki|wikis]] of the [[Help:Wikimedia|Wikimedia movement]], and to anyone in the world.
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== Yihwa si̠ huni fa ? ==

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Let's look at the opening statement in more detail:
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* <span lang="en" dir="ltr" class="mw-content-ltr">'''Free.''' The data in Wikidata is published under the [//creativecommons.org/publicdomain/zero/1.0/ Creative Commons Public Domain Dedication 1.0], allowing the reuse of the data in many different scenarios. You can copy, modify, distribute and perform the data, even for commercial purposes, without asking for permission.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''Collaborative.''' Data is entered and maintained by Wikidata editors, who decide on the rules of content creation and management. Automated [[Special:MyLanguage/Wikidata:Bots|bots]] also enter data into Wikidata.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''Multilingual.''' Editing, consuming, browsing, and reusing the data is fully multilingual. Data entered in any language is immediately available in all other languages. Editing in any language is possible and encouraged.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''A secondary knowledge base.''' Wikidata records not just statements, but also their sources, and connections to other databases. This reflects the diversity of knowledge available and supports the notion of verifiability.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''Collecting structured data.''' Imposing a high degree of structured organization allows for easy reuse of data by Wikimedia projects and third parties, and enables computers to process and “understand” it.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''Support for Wikimedia wikis.''' Wikidata assists Wikipedia with more easily maintainable information boxes and links to other languages, thus reducing editing workload while improving quality. Updates in one language are made available to all other languages.</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">'''Anyone in the world.''' Anyone can use data from Wikidata to build their applications and services.</span>

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== How does Wikidata work? ==
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[[{{LM|Datamodel in Wikidata|svg}}|thumb|upright=2.0|<span lang="en" dir="ltr" class="mw-content-ltr">This diagram of a '''Wikidata item''' shows you the most important terms in Wikidata.</span>]]
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Wikidata is a central storage repository that can be accessed by others, such as the [[Help:Wiki|wikis]] maintained by the  [//wikimediafoundation.org/ Wikimedia Foundation]. Content loaded dynamically from Wikidata does not need to be maintained in each individual wiki project. For example, statistics, dates, locations, and other common data can be centralized in Wikidata.
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=== The Wikidata repository ===
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[[{{LM|Linked Data - San Francisco|svg}}|thumb|270px|class=skin-invert-image|<span lang="en" dir="ltr" class="mw-content-ltr">Items and their data are interconnected.</span>]]
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The Wikidata repository consists mainly of '''[[Special:MyLanguage/Help:Items|items]]''', each one having a [[Special:MyLanguage/Help:Label|label]], a [[Special:MyLanguage/Help:Description|description]] and any number of [[Special:MyLanguage/Help:Aliases|aliases]]. Items are uniquely identified by a <code><nowiki>Q</nowiki></code> followed by a number, such as {{Q|42}}.
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'''[[Special:MyLanguage/Help:Statements|Statements]]''' describe detailed characteristics of an Item and consist of a '''[[Special:MyLanguage/Help:Properties|property]]''' and a '''[[Special:MyLanguage/Help:Statements#Values|value]]'''. Properties in Wikidata have a <code><nowiki>P</nowiki></code> followed by a number, such as with {{P|69}}.
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For a person, you can add a property to specify where they were educated, by specifying a value for a school. For buildings, you can assign geographic coordinates properties by specifying longitude and latitude values. Properties can also link to external databases. A property that links an item to an external database, such as an authority control database used by libraries and archives, is called an '''identifier'''. Special [[Special:MyLanguage/Help:Sitelinks|Sitelinks]] connect an item to corresponding content on client wikis, such as Wikipedia, Wikibooks or Wikiquote.
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All this information can be displayed in any language, even if the data originated in a different language. When accessing these values, client wikis will show the most up-to-date data.
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{| class="wikitable"
!scope="col" style="width: 150px;" | <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:MyLanguage/Help:Items|Item]]</span>
!scope="col" style="width: 150px;" | <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:MyLanguage/Help:Properties|Property]]</span>
!scope="col" style="width: 150px;" | <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:MyLanguage/Help:Statements#Values|Value]]</span>
|- lang="zxx"
|Q42
|P69
|Q691283
|- lang=""
|{{label|Q42}}
|{{label|P69}}
|{{label|Q691283}}
|}

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=== Working with Wikidata ===
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There are a number of ways to access Wikidata using built-in tools, external tools, or programming interfaces.
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* [https://query.wikidata.org Wikidata Query Service] and [https://reasonator.toolforge.org/ Reasonator] are some of the popular tools to search for and examine Wikidata items. The '''[[Special:MyLanguage/Wikidata:Tools|tools]]''' page has an extensive list of interesting projects to explore.
* You can [[Special:MyLanguage/Wikidata:Data access|retrieve all data programmatically using different APIs and service]].
* Client wikis can access data for their pages using a [[mw:Extension:Wikibase Client/Lua|Lua Scribunto interface]].
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== Where to get started ==
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The '''[[Special:MyLanguage/Wikidata:Tours|Wikidata tours]]''', designed for new users, are the best place to learn more about Wikidata.
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<span lang="en" dir="ltr" class="mw-content-ltr">Some links to get started:</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">Set your [[Special:MyLanguage/Help:Navigating Wikidata/User Options|user options]], especially the 'Babel' extension, to choose your language preferences</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">Help with missing [[Special:MyLanguage/Wikidata:WikiProject Labels and descriptions|labels and descriptions]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">Help with [[Special:MyLanguage/Wikidata:Interwiki conflicts|interwiki conflicts]] and [[Wikidata:Database reports/Constraint violations/Summary|constraint violations]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:Random|Improve a random item]]</span>
* <span lang="en" dir="ltr" class="mw-content-ltr">[[Special:MyLanguage/Help:Multilingual|Help translating]]</span>

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== How can I contribute? ==
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Go ahead and [[Special:MyLanguage/Help:Editing|start editing]]. Editing is the best way to learn about the structure and concepts of Wikidata. If you would like to read about Wikidata's concepts, have a look at the [[Special:MyLanguage/Help:Contents|help pages]]. If you have questions, please feel free to drop them in the [[Wikidata:Project chat|project chat]].
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==See also==
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* {{ll|Help:Contents}}
* {{ll|Wikidata:Glossary}}

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