OIL - Ontology Inference Layer
OIL is a proposal for a Web-based representation
and inference layer for ontologies. It uses a layered
approach to defining a standard ontology language.
Each layer adds functionality and complexity to the
previous layer.This is done such that machines that
can only process a lower layer can still partially
understand high-level ontologies. See:
A white paper on OIL functions: `An informal
description of Standard OIL and Instance OIL', by
the On-To-Knowledge group led by Department of
Computer Science, University of Manchester, UK,
28 November 2000, www.ontoknowledge.org/
Dieter Fensel: Ontologies: A Silver Bullet for
Knowledge Management and Electronic Commerce.
New York, Springer, 2001.
`Ontology Infrastructure for the Semantic Web',
Standard Upper Ontology (SUO): An upper
ontology for data interoperability, information
search and retrieval, automated inferencing, and
natural language processing. IEEE Standard Upper
Ontology (SUO) Working Group,
OWL - Web Ontology Language
The Web Ontology Language is a semantic markup
language for publishing and sharing ontologies on
the World Wide Web. OWL is developed as a
vocabulary extension of the Resource Description
Framework (RDF) and is derived from the
DAML+OIL Web Ontology Language. For the
development of this language, see the documents
of the Web Ontology (WebOnt) Working Group,
See also OWL Web Ontology Language Refer-
For an understanding of the goals, requirements
and usage scenarios for a Web ontology language, see:
`Web Ontology Language (OWL) Use Cases and
Requirements' (W3C working draft, 31 March
RDF - Resource Description Framework
See Cultural Heritage Semantic Web Example &
Primer, pp. 32-34.
`Enhanced: Science and the Semantic Web', J. A.
Hendler, in: Science magazine,Volume 299, Number
5606, 24 January 2003, pp. 520-521.
`Peer-to-Peer:The Infrastructure for the Semantic