define basic components & setup an import mechanism for them

[kareniel]

These basic components should be defined in a rdf/xml file. We need a script to import any rdf/xml file, and then a script that serves as an init process for the server app.

• [x] define basic components (start with RDF's spec)
• [x] write definition as rdf/xml
• [ ] write import script
  • [ ] grab document at a URL
  • [ ] parse N3
  • [ ] batch save to db
• [ ] write init script

[kareniel]

Documents from which to get the basic necessary vocubulary:

• http://www.w3.org/1999/02/22-rdf-syntax-ns#
• https://www.w3.org/2000/01/rdf-schema#

The relation between an instance and its class is stated through the rdf:type property.

rdf:type -> property to attribute classes to subjects rdfs:Resource -> class of every subject

So to simply define a new thing, you would declare: <thing> <rdf:type> <rdfs:Resource> But this is not necessary because it is implied by every statement.

Main modeling constructs provided by RDF Schema:

Construct	Syntactic form	Description
type (a property)	I rdf:type C	I (a resource) is an instance of C (a class)
Class (a class)	C rdf:type rdfs:Class	C (a resource) is an RDF class
Property (a class)	P rdf:type rdf:Property	P (a resource) is an RDF property
subClassOf (a property)	C1 rdfs:subClassOf C2	C1 (a class) is a subclass of C2 (a class)
subPropertyOf (a property)	P1 rdfs:subPropertyOf P2	P1 (a property) is a sub-property of P2 (a property)
domain (a property)	P rdfs:domain C	domain of P (a property) is C (a class)
range (a property)	P rdfs:range C	range of P (a property) is C (a class)