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Glossary

see also W3C Linked Data Glossary

C

Controlled Vocabulary

Core Entity

D

Defined Term

A Defined Term is a word or phrase with a at least implicite formal definition that ist part of a Defined Term Set that contains all the Defined Terms of a certain category. For example, the Defined Term Set Cantons contains all 26 Swiss Cantons. The member of this Defined Term Set can be queried as follows.

Defined Term Set

A Defined Term Set contains all the the Defined Terms of a certain category. The Defined Term Set is characterized by the fact that such a Set is usually complete at the current time. For example, at any time, the Defined Term Set of the Cantons is conclusively determined. A list of all Defined Term Sets in LINDAS can be created by the following SPARQL Query. Please be aware, that the links from the Defined Term Set to the Defined Terms via schema:hasDefinedTerm ist not always set, but the link in the opposite direction from the Defined Term to the Defined Term Set via schema:inDefinedTermSet is always present.

Dereferencing

Query on the URI of the namespace to collect the data. (e.g. https://ld.admin.ch/canton/23). Different formats (serializations of the rdf model) can be requested through content-negotiation (by setting a specific HTTP Request Header asking specific format, e.g. RDF/XML, JSON-LD, Turtle in the ).

I

IRI

L

Literal

N

Named Graph

A Named Graph is an additional URI which is not part of a Triple. It is the fourth, additional part which makes out of a Triple a Quad.

The Named Graph is normally used for data management purposes, e.g. to replace all triples in a named graph, or delete all information from one source.

Sometimes a Named Graph is also compared to a file which include the Triples. Altough a Triplestore does manage Named Graphs not as files.

Namespace

O

Object

Ontology

P

Predicate

Q

Querying

Query in SPARQL Language to the database endpoint (e.g. https://lindas.admin.ch/query)

S

Shared Dimension

Subject

T

Triple

In Linked Data a Triple is the atomic form of a data point. It is the collection of three parts (hence Triple) which are made out of Subject - Predicate - Object. Note that the order is important, to interpret a Triple.

There are two cases of Triples.

With a Literal in the Object place:

<https://ld.admin.ch/FC> <http://schema.org/name> "Bundesrat" .

Or with an IRI at the Object place:

<https://ld.admin.ch/FC> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/GovernmentOrganization> .

U

URI

See IRI.