Semantic Web and Web 3.0 · class 06 · demo

The domain of the class, as Linked Data

The 112 triples of the graph of the class (examples/00-data/domain.ttl), served with the content negotiation of example 05. Every URI below can be looked up — by a person, who gets a page, or by a program, who gets RDF. This is what your domain.ttl becomes once it is on the Web.

The four Linked Data principles, here

Use URIs as names for things — product:17 is a keyboard, not a row.

Use HTTP URIs, so that people can look them up — click any node.

Looking one up returns useful information, in RDF — Turtle, JSON-LD, RDF/XML or N-Triples.

Include links to other URIs — inside the graph, and out to Wikidata: owl:sameAs for the same thing, schema:additionalType for a kind of thing.

The graph 25 nodes · 32 links

ProductDigitalProductManufacturerComponentBatchContainerCustomerOrderSupplyCountryConceptexternal

Hover a node to see the names of its links; drag it to move it; click it to look it up. Grey nodes are outside the graph: Wikidata, reached through owl:sameAs (the same thing) or schema:additionalType (a kind of thing). Types are left out of the drawing (rdf:type) — they are the colours.

Every resource 22

Reused, not invented

Dublin CoreOWLRDFRDFSSKOSschema.org and our own: onto: