RDF lists are a rather weak spot of the semantic technology stack. Their design is basically a linked structure of intermediate list nodes using dedicated properties rdf:rest and rdf:first. So a simple list of string literals “red”, “yellow” and “green” … Read More
An Overview of SHACL Features and Specifications
After two and half years of collaboration and discussions, the W3C Data Shapes Working Group has produced a collection of specifications that define the features of the Shapes Constraint Language (SHACL): SHACL (Official W3C Standard Recommendation) is the main document, … Read More
Using SHACL Data Constraints in the TopBraid Web Products EVN and EDG
(original posted on September 6, 2016) What is SHACL? The RDF Shapes Constraint Language (SHACL) is a new W3C standard for specifying rich data constraints as part of semantic data models. It can be used with RDFS/OWL ontologies or, alternatively, an … Read More
Questions and Answers from our recent webinar: collaborative ontology management in TopBraid EVN
The second in a series of ‘deep dive’ webinars on TopBraid Enterprise Vocabulary Net (EVN) featured a short presentation and demo of some key capabilities for collaborative ontology management provided by TopBraid EVN 5.1. Many people have experienced EVN's taxonomy … Read More
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