Rdfa is an attempt to get both the flexibility of rdf and the simplicity of microformats. What are they and why might they be useful when developing websites? I understand that every uri should represent a ressource.
I am a bit confused about the semantics of websites. Owl (and rdfs) are languages for writing new schemas / vocabularies /. This will have to wait.
The property attribute comes from rdfa. Microdata was a response to rdfa, but with a different data model (roughly. Vocabularies you can use to mark up your data. I have stumbled upon rdfa and have seen the terms microdata and microformats used frequently.
Rdfa 1.1 extends html5 so that it’s valid to use meta and link elements in the body, as long as they contain a property attribute. Rdflib seems to support parsing rdfa data. Dublin core and foaf are schemas, i.e. I assume that all information provided by rdfa inside a.