Modelling

Page under which Object modelling descriptions will be hosted:

Metabase vs. Wikidata

As we do not aim to duplicate the information on Wikidata, there's a number of item types that only contain a Wikidata QID, using sameAs on Wikidata (P1). These are:

• index term (Q12)
• organization (Q13)
• Wikimedia content project (Q22)
• human (Q23)
• location (Q66)

By using federated queries, we can still access information about these types of entities from Wikidata, without hosting the data ourselves.

See some examples of federated queries..

Index terms

An index term (Q12) is a keyword that we use to describe e.g. the topic of a document or the focus area of a project.

For example: museum collection (Q18), public art (Q39), authority control (Q17).

Organizations

An organization (Q13) could be a Wikimedia chapter, a GLAM or any other organized social entity.

For example: Wikimedia Foundation (Q50), Wikimedia Sverige (Q9), Nationalmuseum (Q15).

Metabase-specific items

Projects

A project could be:

• a formal one officially implemented by an organization (a Wikimedia chapter, a GLAM, or other)
• an informal one implemented by a self-organized group (such as participants in a Wikiproject), or an individual (a volunteer Wikimedian)

See the following:

• Modelling of projects in Metabase
• Generic project entity schema and Cradle
• Wikimedia Sverige project entity schema and Cradle

Activities and events

• Projects
  • Wikidata for authority control 2021 (Q14)
  • SPARQL: All projects

• Events
  • Cultural Heritage Data, OpenRefine and Wikidata (Q36)
• ...

• Documents
  • Strategic Inclusion of Library Data in Wikidata 2018 ‒ final report (Q35)
  • SPARQL: All documents
  • SPARQL: All types of documents

• Index terms
  • museum collection (Q18)
  • SPARQL: All index terms