Core Entities

Core Entities are important resources in LINDAS:

• Core Entities are needed because they play (will play) a role in many different datasets (e.g. cantons or offices) and should be reusable.
• Core Entities are the central point to link detailed information from different other sources (registers) (e.g. the core entity "Canton XY" is linked to geographical information and population statistics).

Core Entities include:

• Territorial entities: countries, cantons, districts, municipalities, ...
• Organizational Entities: Departments, Offices, ...
• Temporal entities: Years, semesters, quarters, months, weeks, ...

Core Entities are modeled as part of a Controlled Vocabulary of type schema:DefinedTerm within a schema:DefinedTermSet. There is no actual "Core Entity" class.

Tabular Collection of Core Entities

What	List of Entities	Example
Territorial Entities
Countries	SPARQL Query	France: https://ld.admin.ch/country/FRA
Cantons	SPARQL Query	Jura: https://ld.admin.ch/canton/26
Municipalities	SPARQL Query	Bregaglia: https://ld.admin.ch/municipality/3792
Organizational Entities
Departments of the Federal Administration	SPARQL Query	DETEC: https://ld.admin.ch/department/VII
Federal Offices	SPARQL Query	Federal Archives: https://ld.admin.ch/office/II.1.4
Temporal Entities
Semester	SPARQL Query	Semester 1, 1978: https://ld.admin.ch/time/semester/1978-H1
Quarters	SPARQL Query	Quarter 2, 1968: https://ld.admin.ch/time/quarter/1968-Q2
Months	SPARQL Query	Month 12, 1999: https://ld.admin.ch/time/month/1999-12
Weeks	SPARQL Query	Week 12, 1972: https://ld.admin.ch/time/week/1972-W12

Further Core Entities and Defined Term Sets

This SPARQL Query returns further Defined Term Sets, which can be understood as core entities. It should be noted that not all Defined Term Sets have a link to the actual terms using schema:hasDefinedTerm. In some cases, only the individual term has a link to the Defined Term Set using schema:inDefinedTermSet.