D3FEND

What it is

The fetched page is the MITRE D3FEND ontology-resource hub, distributing the entire current D3FEND model. It separates ontology files from data files containing relationships generated by inference.

Key concepts

Ontology distributions are offered as RDF/OWL XML, Turtle, and JSON-LD Graph. Inferred mappings are separately available in SPARQL 1.1 CSV and JSON, with versioned releases listed from beta versions through 1.5.0.

How you’d use it

Load an ontology distribution into a semantic graph database and query it, or download the full-mappings data when you need the inferred relationships shown on the D3FEND website.

LLM angle

none stated

Pitfalls & lessons

Do not assume every expected relationship is explicitly present in the ontology files: some are generated through inference and published in the Data Files section. The page says the SPARQL queries used to generate them are not yet open-sourced but are planned.

Verdict

A practical distribution page for consuming either the D3FEND model or its materialized inferred relationships, with several machine-readable formats and historical releases.

Sources consulted

• https://d3fend.mitre.org/resources/ontology/