Wikibase

Wikibase is a set of extensions for the open-source software MediaWiki. It is an open-source collaboration suite for creating knowledge bases. It uses semi-structured data in JSON format, rather than the unstructured data of wikitext. The data model for Wikibase links consists of "entities" which include individual "items", labels or identifier to describe them (potentially in multiple languages), and semantic statements that attribute "properties" to the item. These properties may either be other items within the database, or textual information.