DCAT-R Specification

DCAT-R (Data Catalog Vocabulary for RDF Repositories) extends DCAT 3 with classes and properties for describing RDF repositories, their datasets, and named graphs through a four-level hierarchy: Service, Repository, Dataset, Graph.

This repository contains the ReSpec specification document and the DCAT-R vocabulary definition.

Prerequisites

• Node.js (for local preview)
• pyLODE (for generating term documentation)
• raptor (for RDF validation and format conversion)
• rdflib (for JSON-LD conversion)

Quick Start

npm install
npm run serve

This opens the specification at http://localhost:3000.

Commands

Command	Description
npm run serve	Live preview on localhost:3000
npm run dev	Live preview with auto-reload on file changes
make	Build all (term docs + format conversions)
make validate	Validate ontology RDF syntax
make formats	Convert Turtle to N-Triples, RDF/XML, JSON-LD
make clean	Remove generated files

Project Structure

spec/
├── docs/
│   ├── index.html              # ReSpec specification document
│   └── sections/               # Markdown sections (included by ReSpec)
├── vocab/
│   └── dcatr.ttl               # DCAT-R vocabulary (Turtle)
├── examples/
│   └── example-repository.ttl  # Example DCAT-R descriptions
└── package.json

Further Reading

• ReSpec documentation
• DCAT 3 specification

License

CC BY 4.0