The data model

Items

Statements

• Property & value (the main snak)
• Zero or more qualifiers (snaks)
• Zero or more references (lists of snaks)
• A rank

Snaks

• Population is 300 000 ➜ Value snak
• Date of death does not exist ➜ No value snak
• Date of death is unknown ➜ Some value snak

All snaks have a Property ID

Properties

Types such as: Item, String, Quantity, IRI, etc

Wikibase Repository

• MediaWiki extension
• Build on top of DataModel and other components
• Entity base

Wikibase Client

• MediaWiki extension
• Build on top of DataModel and other components
• Embedding data into wiki pages

{{MusicBrainz meta
  |type=artist
  |mbid={{{mbid|{{{id|{{{1|{{#if:
            {{#property:p434}} | {{#property:p434}} |}}
        }}}}}}}}}
  |name={{{name|{{PAGENAME}}}}}
  |wdc-property=p434
  |wdc-category=MusicBrainz artist
}}

                

Local DB access needed

The components

• Wikibase DataModel
• Wikibase DataModel Serialization
• Wikibase QueryEngine
• Ask (and Ask Serialization)