Semantic Web and Web 3.0 · partial view

The course data, as it stood after class 11

242 triples. Every URI below can be looked up — by a person, who gets a page, or by a program, who gets RDF — and the vocabulary is at /onto. The complete graph has everything.

Partial views: after class 06 (the domain graph, 112 triples) · after class 10 (integration: catalogue, suppliers, identity, provenance, 103 triples) · after class 11 (the chain: certificates and on-chain records, 33 triples) · after class 12 (, 133 triples).
Named graphs, one per source: <https://data.csoares.me/graph/catalogue> (33) · <https://data.csoares.me/graph/chain> (29) · <https://data.csoares.me/graph/domain> (21) · <https://data.csoares.me/graph/identity> (4) · <https://data.csoares.me/graph/source-external> (12) · <https://data.csoares.me/graph/suppliers-csv> (30).

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 42 nodes · 49 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.

The course data, as it stood after class 11

The four Linked Data principles, here

The graph 42 nodes · 49 links

Every resource 39

Reused, not invented