Short for
Ontology Inference Layer, OIL a Web-based representation and inference
layer for
ontologies, combining frame-based languages with the formal
semantics
and reasoning services. Its goal is to provide a general purpose markup language
for the
Semantic Web. OIL is compatible with
RDF Schema. The OIL initiative is
funded by the European Union IST program for Information Society Technologies
under the On-To-Knowledge project (IST-1999-1013) and IBROW (IST-1999-19005).