First Public Working Drafts: SHACL 1.2 Core and SHACL 1.2 SPARQL Extensions

The Data Shapes Working Group has published the following two First Public Working Drafts:

• SHACL 1.2 Core: This document defines the Core of the SHACL Shapes Constraint Language. SHACL is a language for validating RDF graphs against a set of conditions. These conditions are provided as shapes and other constructs expressed in the form of an RDF graph. RDF graphs that are used in this manner are called "shapes graphs" in SHACL and the RDF graphs that are validated against a shapes graph are called "data graphs". As SHACL shape graphs are used to validate that data graphs satisfy a set of conditions they can also be viewed as a description of the data graphs that do satisfy these conditions. Such descriptions may be used for a variety of purposes beside validation, including user interface building, code generation and data integration.
• SHACL 1.2 SPARQL Extensions: This document defines SPARQL-related extensions of the SHACL Shapes Constraint Language. While the Core part of SHACL defines the basic syntax of shapes and the most common constraint components supported by SHACL, the SPARQL-related extensions cover features that extend the expressiveness of Core by means of SPARQL. In particular, this document defines how constraints and constraint components can be defined using SPARQL.