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From OWL to SHACL in an automated way

Posted by Irene Polikoff on May 1, 2018

Following my two recent talks at the Enterprise Data World, 2018: SHACL (Shapes Constraint Language) – An Introduction, [Download Slides >>] FIBO in SHACL: The Next Step in Data Validation and Interoperability, [Download Slides >] I have been getting many … Read More »

A Recap of December’s DG Winter Conference

Posted by Steve Wartofsky on January 4, 2018

Happy 2018! December was a busy month – as I’m sure many of you, like me, experienced. We started the month with a trip to the Data Governance Winter Conference in Delray Beach, Florida. It is a great place to … Read More »

How does SHACL Support Data Governance?

Posted by Irene Polikoff on October 25, 2017

SHACL (SHAPES Constraint Language) is a powerful, recently released W3C standard for data modeling, ontology design, data validation, inferencing and data transformation. In this post, we explore some important ways in which SHACL can be used to support capabilities needed … Read More »

A Recap from SEMANTiCS 2017

Posted by Robert Coyne on October 6, 2017

TopQuadrant recently wrapped up our attendance, sponsorship and exhibition at SEMANTiCS 2017 in Amsterdam. This year’s conference had a strong turnout with 370 attendees to be exact. This represented a growth of 33% over last year which reflects the growing … Read More »

Q&A FROM RECENT WEBINARS, “An Overview of SHACL (Shapes Constraint Language)”

Posted by Kristi Lee-John on September 13, 2017

* This post has been updated to reflect new questions received in the presentation of the webinar An Overview of SHACL (Shapes Constraint Language), on October 17, 2017. The webinar was our second in a series of webinars focused on … Read More »

How to define constraints on rdf:Lists using SHACL

Posted by Holger Knublauch on June 13, 2017

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 »

How to use TopBraid as a data validation server

Posted by Holger Knublauch on June 13, 2017

RDF data validation is the process of checking a (data) graph against constraints from a schema definition. In the Shapes Constraint Language (SHACL), constraints are themselves expressed in a RDF syntax, in so-called shapes graphs. SHACL-based validation engines can (among … Read More »

An Overview of SHACL Features and Specifications

Posted by Holger Knublauch on June 12, 2017

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 »

Technology and Your GDPR journey

Posted by Ankur Oberai on May 11, 2017

Since you’ve reached this page, GDPR (General Data Protection Regulation) must mean something to you or you need to find out if it does! In this blog, we will quickly review GDPR and its importance and then focus on the … Read More »

Insights from Enterprise Data World

Posted by ralph hodgson on April 25, 2017

It was another year of productive exchange of experience, insights and ideas at EDW 2017! As it grown in importance for most enterprises, data governance has become a key focus and high-priority of the conference program. So, not surprisingly, we … Read More »

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