"Has type" is a predefined property that describes the datatype of a property and is provided by Semantic MediaWiki. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
This special property is used to assign a type to other properties. If a property does not have a type specified, it defaults to page
. Commonly-used types on this wiki are date
, number
, page
, and text
. For more information, see smw:Help:Special property Has type.