Wikibase

Wikibase (wikiba.se) is a system for storing and querying structured data that powers Wikidata and other wikis.

Wikibase consists of two extensions:

1. Wikibase Repository that allows a wiki to work as a repository for structured data.
2. Wikibase Client that allows a wiki to access structured data from a repository. The client can work only with repository databases it can access so they must be on the same machine or the same load balancer.

Installation

Wikibase installation instructions at Mediawiki.org and advanced configuration of Wikibase.

The installation instructions assume you are installing the dependencies with Composer, a PHP package manager that makes the installation of dependencies easy.

Related useful extensions

• mw:Extension:ArticlePlaceholder makes article placeholders from repository data and invites users to create the article.
• mw:Extension:UniversalLanguageSelector is recommended to work in conjunction with Wikibase for user comfort.

Alternative to using Wikibase Client

• mw:Extension:LinkedWiki can be configured to access multiple SPARQL endpoints.

Useful information

• The data model used in Wikibase (thorough) and the primer on the data model (quick access)
• Information on the federation of Wikibase at Github
• Phabricator Task to "Document how to set up federated Wikibase instances"
• Phabricator Task to "Wikidata/Wikibase federation and distribution" and the Google Docs document charting out the task