alternative label

The range of skos:altLabel is the class of RDF plain literals.skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.

Comment
The range of skos:altLabel is the class of RDF plain literals.
skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
Definition
An alternative lexical label for a resource.
Example
Acronyms, abbreviations, spelling variants, and irregular plural/singular forms may be included among the alternative labels for a concept. Mis-spelled terms are normally included as hidden labels (see skos:hiddenLabel).
IsDefinedBy
SKOS Vocabulary
Label
alternative label
SubPropertyOf
label
Definition
A note about a modification to a concept.
IsDefinedBy
SKOS Vocabulary
Label
change note
SubPropertyOf
note

Collection

Definition
A meaningful collection of concepts.
DisjointWith
Concept
Concept Scheme
IsDefinedBy
SKOS Vocabulary
Label
Collection
Scope note
Labelled collections can be used where you would like a set of concepts to be displayed under a 'node label' in the hierarchy.

Concept

Definition
An idea or notion; a unit of thought.
IsDefinedBy
SKOS Vocabulary
Label
Concept
Definition
A set of concepts, optionally including statements about semantic relationships between those concepts.
DisjointWith
Concept
Example
Thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', and other types of controlled vocabulary are all examples of concept schemes. Concept schemes are also embedded in glossaries and terminologies.
IsDefinedBy
SKOS Vocabulary
Label
Concept Scheme
Scope note
A concept scheme may be defined to include concepts from different sources.
Definition
A statement or formal explanation of the meaning of a concept.
IsDefinedBy
SKOS Vocabulary
Label
definition
SubPropertyOf
note
Definition
A note for an editor, translator or maintainer of the vocabulary.
IsDefinedBy
SKOS Vocabulary
Label
editorial note
SubPropertyOf
note
Definition
An example of the use of a concept.
IsDefinedBy
SKOS Vocabulary
Label
example
SubPropertyOf
note

has broader

Broader concepts are typically rendered as parents in a concept hierarchy (tree).

Comment
Broader concepts are typically rendered as parents in a concept hierarchy (tree).
Definition
Relates a concept to a concept that is more general in meaning.
InverseOf
has narrower
IsDefinedBy
SKOS Vocabulary
Label
has broader
Scope note
By convention, skos:broader is only used to assert an immediate (i.e. direct) hierarchical link between two conceptual resources.
SubPropertyOf
has broader transitive
Definition
skos:broadMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes.
InverseOf
has narrower match
IsDefinedBy
SKOS Vocabulary
Label
has broader match
SubPropertyOf
has broader
is in mapping relation with
Definition
skos:broaderTransitive is a transitive superproperty of skos:broader.
InverseOf
has narrower transitive
IsDefinedBy
SKOS Vocabulary
Label
has broader transitive
Scope note
By convention, skos:broaderTransitive is not used to make assertions. Rather, the properties can be used to draw inferences about the transitive closure of the hierarchical relation, which is useful e.g. when implementing a simple query expansion algorithm in a search application.
SubPropertyOf
is in semantic relation with
Definition
skos:closeMatch is used to link two concepts that are sufficiently similar that they can be used interchangeably in some information retrieval applications. In order to avoid the possibility of "compound errors" when combining mappings across more than two concept schemes, skos:closeMatch is not declared to be a transitive property.
IsDefinedBy
SKOS Vocabulary
Label
has close match
SubPropertyOf
is in mapping relation with

has exact match

skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch.

Comment
skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch.
Definition
skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch.
IsDefinedBy
SKOS Vocabulary
Label
has exact match
SubPropertyOf
has close match
Definition
Relates a collection to one of its members.
Domain
Collection
IsDefinedBy
SKOS Vocabulary
Label
has member
Range

A0

UnionOf

A1

First
Concept
Rest

A2

First
Collection
Rest
nil

has member list

For any resource, every item in the list given as the value of the skos:memberList property is also a value of the skos:member property.

Comment
For any resource, every item in the list given as the value of the skos:memberList property is also a value of the skos:member property.
Definition
Relates an ordered collection to the RDF list containing its members.
Domain
Ordered Collection
IsDefinedBy
SKOS Vocabulary
Label
has member list
Range
List

has narrower

Narrower concepts are typically rendered as children in a concept hierarchy (tree).

Comment
Narrower concepts are typically rendered as children in a concept hierarchy (tree).
Definition
Relates a concept to a concept that is more specific in meaning.
InverseOf
has broader
IsDefinedBy
SKOS Vocabulary
Label
has narrower
Scope note
By convention, skos:broader is only used to assert an immediate (i.e. direct) hierarchical link between two conceptual resources.
SubPropertyOf
has narrower transitive
Definition
skos:narrowMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes.
InverseOf
has broader match
IsDefinedBy
SKOS Vocabulary
Label
has narrower match
SubPropertyOf
has narrower
is in mapping relation with
Definition
skos:narrowerTransitive is a transitive superproperty of skos:narrower.
InverseOf
has broader transitive
IsDefinedBy
SKOS Vocabulary
Label
has narrower transitive
Scope note
By convention, skos:narrowerTransitive is not used to make assertions. Rather, the properties can be used to draw inferences about the transitive closure of the hierarchical relation, which is useful e.g. when implementing a simple query expansion algorithm in a search application.
SubPropertyOf
is in semantic relation with

has related

skos:related is disjoint with skos:broaderTransitive

Comment
skos:related is disjoint with skos:broaderTransitive
Definition
Relates a concept to a concept with which there is an associative semantic relationship.
IsDefinedBy
SKOS Vocabulary
Label
has related
SubPropertyOf
is in semantic relation with
Definition
skos:relatedMatch is used to state an associative mapping link between two conceptual resources in different concept schemes.
IsDefinedBy
SKOS Vocabulary
Label
has related match
SubPropertyOf
has related
is in mapping relation with
Definition
Relates, by convention, a concept scheme to a concept which is topmost in the broader/narrower concept hierarchies for that scheme, providing an entry point to these hierarchies.
Domain
Concept Scheme
InverseOf
is top concept in scheme
IsDefinedBy
SKOS Vocabulary
Label
has top concept
Range
Concept

hidden label

The range of skos:hiddenLabel is the class of RDF plain literals.skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.

Comment
The range of skos:hiddenLabel is the class of RDF plain literals.
skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
Definition
A lexical label for a resource that should be hidden when generating visual displays of the resource, but should still be accessible to free text search operations.
IsDefinedBy
SKOS Vocabulary
Label
hidden label
SubPropertyOf
label
Definition
A note about the past state/use/meaning of a concept.
IsDefinedBy
SKOS Vocabulary
Label
history note
SubPropertyOf
note

is in mapping relation with

These concept mapping relations mirror semantic relations, and the data model defined below is similar (with the exception of skos:exactMatch) to the data model defined for semantic relations. A distinct vocabulary is provided for concept mapping relations, to provide a convenient way to differentiate links within a concept scheme from links between concept schemes. However, this pattern of usage is not a formal requirement of the SKOS data model, and relies on informal definitions of best practice.

Comment
These concept mapping relations mirror semantic relations, and the data model defined below is similar (with the exception of skos:exactMatch) to the data model defined for semantic relations. A distinct vocabulary is provided for concept mapping relations, to provide a convenient way to differentiate links within a concept scheme from links between concept schemes. However, this pattern of usage is not a formal requirement of the SKOS data model, and relies on informal definitions of best practice.
Definition
Relates two concepts coming, by convention, from different schemes, and that have comparable meanings
IsDefinedBy
SKOS Vocabulary
Label
is in mapping relation with
SubPropertyOf
is in semantic relation with
Definition
Relates a resource (for example a concept) to a concept scheme in which it is included.
IsDefinedBy
SKOS Vocabulary
Label
is in scheme
Range
Concept Scheme
Scope note
A concept may be a member of more than one concept scheme.
Definition
Links a concept to a concept related by meaning.
Domain
Concept
IsDefinedBy
SKOS Vocabulary
Label
is in semantic relation with
Range
Concept
Scope note
This property should not be used directly, but as a super-property for all properties denoting a relationship of meaning between concepts.
Definition
Relates a concept to the concept scheme that it is a top level concept of.
Domain
Concept
InverseOf
has top concept
IsDefinedBy
SKOS Vocabulary
Label
is top concept in scheme
Range
Concept Scheme
SubPropertyOf
is in scheme
Definition
A notation, also known as classification code, is a string of characters such as "T58.5" or "303.4833" used to uniquely identify a concept within the scope of a given concept scheme.
IsDefinedBy
SKOS Vocabulary
Label
notation
Scope note
By convention, skos:notation is used with a typed literal in the object position of the triple.
Definition
A general note, for any purpose.
IsDefinedBy
SKOS Vocabulary
Label
note
Scope note
This property may be used directly, or as a super-property for more specific note types.
Definition
An ordered collection of concepts, where both the grouping and the ordering are meaningful.
IsDefinedBy
SKOS Vocabulary
Label
Ordered Collection
Scope note
Ordered collections can be used where you would like a set of concepts to be displayed in a specific order, and optionally under a 'node label'.
SubClassOf
Collection

preferred label

A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag.The range of skos:prefLabel is the class of RDF plain literals.skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.

Comment
A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag.
The range of skos:prefLabel is the class of RDF plain literals.
skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
Definition
The preferred lexical label for a resource, in a given language.
IsDefinedBy
SKOS Vocabulary
Label
preferred label
SubPropertyOf
label

SKOS Vocabulary

An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies.

Contributor
Dave Beckett
Nikki Rogers
Participants in W3C's Semantic Web Deployment Working Group.
Creator
Alistair Miles
Sean Bechhofer
Description
An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies.
SeeAlso
http://www.w3.org/TR/skos-reference/
Title
SKOS Vocabulary
Definition
A note that helps to clarify the meaning and/or the use of a concept.
IsDefinedBy
SKOS Vocabulary
Label
scope note
SubPropertyOf
note