Motivation for Ontologies
- RDF Schema and DAML+OIL
constrain an
RDF graph
- so programs know what to expect
- so that additional statements can be inferred
- DAML+OIL extends RDF(S) in the following ways
- supporting
XML Schema Datatypes
rather than just
string literals
- cardinality restrictions
- local restrictions
- enumerations
- class expressions
- ontology and instance mapping
- providing additional hints to reasoners
