The Shape Expressions (ShEx) language describes RDF nodes and graph structures. A node constraint describes an RDF node (IRI, blank node or literal) and a shape describes the triples involving nodes in an RDF graph. These descriptions identify predicates and their associated cardinalities and datatypes. ShEx shapes can be used to communicate data structures associated with some process or interface, generate or validate data, or drive user interfaces.

Prefix

shex

Preferred Prefix

shex

Keywords

metadata rdf semantic web

Links

Homepage Repository RDF

Contact

Gregg Kellogg   gkellogg

Pattern for Local Unique Identifiers

Local identifiers in Shape Expression Vocabulary should match this regular expression:
^\w+$

Example Local Unique Identifier

TripleExpression   Resolve

Pattern for CURIES

Compact URIs (CURIEs) constructed from Shape Expression Vocabulary should match this regular expression:
^shex:\w+$

Example CURIE

shex:TripleExpression

Contributors

• submitter Charles Tapley Hoyt   0000-0003-4423-4370   cthoyt

A summary of the relations in the Bioregistry schema can be found here.

In Collection

Semantic Web Context

The metaregistry provides mappings between the Bioregistry and other registries. There are 1 mappings to external registries for this resource with 1 unique external prefixes.

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier TripleExpression is used to demonstrate the providers available for Shape Expression Vocabulary. A guide for curating additional providers can be found here.