Synthetic Biology:Semantic web ontology/RDF

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Overview

Resource Definition Framework - used for making statements about facts 

<http://www.example.org/index.html>  has a creator whose value is John Smith

the RDF terms for the various parts of the statement are:

Beware of thinking of RDF as a format for serailizing objects. The semantic web is different - it is weblike.

  • Any document can (potentially) say anything about anything. There is no set of "slots" or "attributes" for a class. The properties defined in a schema are not the only properties which one can use to describe something which is in that class.
  • An object can be in many classes. When you create a semantic web document about something, others can deduce more things about it, in vocabularies you have never heard of.
  • Entity-Relationship and UML diagrams are useful for describing RDF -- so long as you remember the above.

From http://www.w3.org/2000/10/swap/doc/formats.

N3

Notes:

  • Comments start with # sign
  • When you say what type of thing something is, you say a Class it belongs to.
  • A property is something which is used to declare a relationship between two things.
  • When the subject of any property must be in a class, that class is a domain of the property.
  • When the object must be in a class, that class is called the range of a property.
  • class identifiers start with capitals, properties with lower case letters
  • a rdf:type
  • => ?

References:

Turtle

  • Turtle - Terse RDF Triple Language - defines a text syntax for RDF called Turtle as an extension of the N-Triples test case format carefully taking the most useful and appropriate things added from Notation 3 while keeping the syntax describing only RDF graphs.

References

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