SHACL

Protocolo Semântico e de Dados

Shapes Constraint Language — W3C standard for describing and validating RDF graphs against sets of conditions (shapes). Provides closed-world validation semantics over RDF data, distinct from OWL's open-world reasoning. Used increasingly in linked-data work where validation-against-expectations is more useful than logical inference. Member of the W3C Semantic Web Suite.

Comunidade

Links

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Detalhes

Licença

Specification only; implementations include Apache Jena SHACL, TopBraid SHACL API (Java), pySHACL (Python), rdf-validate-shacl (JavaScript), Shaclex (Scala)

Status de Dev 🏁 Final

Detalhe do Status de Dev

Released / Active (W3C Recommendation; growing adoption in linked-data ecosystems)

Proprietário

W3C; RDF Data Shapes Working Group

Órgão de Governança W3C (Recommendation track — RDF Data Shapes Working Group)

País

International (W3C)

Ano de Início 2017

Stack

Specification; reference implementations across multiple languages — Apache Jena (Java), TopBraid SHACL API (Java), pySHACL (Python), rdf-validate-shacl (JavaScript)

Financiamento

W3C standards process

Última Investigação 1 de jul. de 2026

Domínios de Caso de Uso

Cocriação e Conhecimento

Capacidades

Rastreamento de procedência

Formatos interoperáveis

Protocolo Semântico e de Dados Atributos

Origens

RDF validation (created to fill the validation gap left by OWL's open-world reasoning; influenced by ShEx and SPIN)

Banco de Dados

Operates over RDF data in triple stores or in-memory graphs

Linguagem de Consulta

SHACL itself is partly a query mechanism via SPARQL-based constraints (SHACL Advanced Features); SPARQL remains the primary RDF query language

Formatos de Dados

Turtle, JSON-LD, RDF/XML (any RDF serialization) for both shapes and data

Edição Colaborativa em Tempo Real

N/A (validation specification)

Edição de Texto Rico

N/A

Suporte Móvel

Library-level

Suporte Web

Yes (rdf-validate-shacl runs in browsers; JSON-LD shapes serializable for web use)

Aplicativos Nativos

TopBraid Composer and other RDF editors support SHACL

Termos

Open standard — W3C Recommendation

Fundos

N/A

Baseado Em

Earlier RDF validation languages (ShEx, SPIN); RDF data model; SPARQL for advanced constraints; influenced by structured-data validation patterns from other ecosystems

Compatibilidade com a Web Semântica

Native — SHACL operates over RDF and is part of the W3C Semantic Web Suite

Maturidade / Padronização do Protocolo

W3C Recommendation (2017; SHACL Core + SHACL-SPARQL extension); SHACL 1.2 in active working group development; mature and growing in adoption

Tipo de Vocabulário / Ontologia

Validation vocabulary — provides constructs for defining shapes (NodeShape, PropertyShape) with constraints (min/max cardinality, datatype, value ranges, pattern matching, etc.) over RDF graphs

Padrão de Uso

Linked data validation; data quality enforcement; form generation from shapes; API request/response validation; Solid Pod data validation; FAIR data practices; widely used in Wikidata, biomedical data, and W3C VC ecosystems