A good understanding of Semantic Web concepts and technologies is crucial. This includes knowledge of RDF triples, ontologies, and linked data principles.

Familiarity with RDF (Resource Description Framework) and the RML (the RDF Mapping Language) is important, while experience with SPARQL (SPARQL Protocol and RDF Query Language) is highly beneficial. TED-ODS provides data in RDF format and utilizes SPARQL for querying.

If the goal is to understand how mappings are used to transform specific types of EU procurement data, such as contract notices or award notices, it’s important to have a basic understanding of these concepts, and the associated eProcurement Ontology.

Since most of the conceptual mappings is done in a spreadsheet, working experience with spreadsheet editing tools such as MS Excel or Google Sheets, is beneficial.

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