W3C's Ontology Language (OWL)
Defines the basic concepts (resources) in terms of
classes
:
classes can be viewed as “sets” of possible individuals
e.g.,
svgEntity
in our example
hierarchies of concepts can be defined as
sub-classes
Properties are defined by:
constraints on their range and domain, or
specialization (
sub-properties
)
Ivan Herman
, W3C Head of Offices
Madrid, 22 October, 2003
23 (43)
