Semantic Web for Dummies

I referenced this on the SIOC-Dev mailing list recently, and when I pasted it on the DataPortability.org steering group chat this morning (in parallel with our first phone conference), Drummond Reed suggested I blog it. It's originally from MIT's Stefan Marti:

XML customised tags, like:

<dog>Nena</dog>

+ RDF relations, in triples, like:

(Nena) (is_dog_of) (Kimiko/Stefan)

+ Ontologies / hierarchies of concepts, like:

mammal -> canine -> Cotton de Tulear -> Nena

+ Inference rules like:

If (person) (owns) (dog), then (person) (cares_for) (dog)

= Semantic Web!

(Picture by Duncan Hull.)