Working for Epimorphics was a very enjoyable experience. It also provides a configuration page, meaning that you can run several validations with different configurations without having to rebuild or restart the app. It uses the Kotlinx library for HTML rendering. It serves the validation output in three different formats: as plain text (which is similar to the command-line applicationвЂ™s output), as JSON, and as a web page.

The second application is a web application called Triple Advisor. Each inconsistency type has a warning level called a вЂњseverityвЂќ (that can be вЂњErrorвЂќ, вЂњWarningвЂќ, вЂњInfoвЂќ, or вЂњIgnoreвЂќ) which can be configured before building the application. It takes a model file and a Sparql database endpoint as arguments, runs the validation and logs the inconsistencies with a detailed description. The first application is a command-line application (Devi-NT). The library uses the Apache Jena library to manage the Sparql queries. They are written in Kotlin and deployed thanks to the Spring boot framework. My project is composed of a validation library, and two applications that both rely on the library.

In order to do that, we extract a unit of specification from the model, build a SPARQL query that will return the resources not complying with that specification, and run it against the dataset.Д¬urrently, the validation looks for 14 different types of inconsistencies and the library can be easily extended to retrieve other kinds of inconsistencies in the future. The goal with this tool was to automatically retrieve all the differences between a model file and the RDF dataset it describes вЂ“ these are called вЂњinconsistenciesвЂќ. I was attracted to Epimorphics because of their previous work with the Environment Agency, as I wish to work for companies who care about environmental issues, and because I was interested in learning more about semantic web and linked data while working for a company that publishes open data.ДЄs part of the back-end team, I worked on an internal tool designed to help EpimorphicsвЂ™ developers compare database content with a data model, in order to validate the model specification files from another project (Sapi-NT). While studying for an Engineering Degree in Computer Sciences at INSA Toulouse in France, I had the opportunity to intern for 3 months at Epimorphics as part of my 4th year studying.

Validator-nt software