OWL Modelling

Ontology Design Patterns

Explanation in OWL

Naming Properties and Relations

Naming Properties and Relations (comment)

Possible Ontologies: How Reality Constrains the Development of Relevant Ontologies

Some of the new features are syntactic sugar (e.g., disjoint union of classes) while others offer new expressivity, including:

* keys;
* property chains;
* richer datatypes, data ranges;
* qualified cardinality restrictions;
* asymmetric, reflexive, and disjoint properties; and
* enhanced annotation capabilities