Chapter 2 an introduction to the owl web ontology language jeff heflin lehigh university abstract. Rdf schema extends rdf with a schema vocabulary that. Iswc2010, shanghai, china november 2010 pascal hitzler 9 owl overview web ontology language w3c recommendation for the semantic web, 2004 owl 2 revised w3c recommendation, 2009 semantic web kr language based on description logics dls owl dl is essentially dl sroiqd kr for web resources, using uris. This method is based on some mapping rules that automatically generate owl ontology from an xml data source. Knowledge representation for the semantic web, ki 2009 web ontology language w3c recommendation for the semantic web, 2004 owl 2 revised w3c recommendation forthcoming in 2009 we already present this here. Xml schemas and data in documentlevel customizations. Owl 2 web ontology language xml serialization second. Owl 2 web ontology language xml serialization second edition. Owl 2 web ontology language primer world wide web consortium. Before you study owl you should have a basic understanding of xml, xml namespaces and rdf. Owl 2 ql query language is intended for simple ontologies with a large number.
Owl 2 is not a schema language for syntax conformance. There are many longer and more involved tutorials on owl and how to. Some of these conditions involve imported ontologies, thus it is possible for an owl 2 dl ontology written in the xml serialization of owl 2 to satisfy the conditions. An owl 2 dl ontology written in the xml serialization of owl 2mustsatisfy the conditions on owl 2 dl ontologies from section 3 of the owl 2 specification owl 2 specification. Transforming xml schema to owl using patterns benjamin. Transforming xml schema to owl using patterns ieee. Introduction the owl web ontology language is an international standard for encoding and exchanging ontologies and is designed to support the semantic web.
Search in not based on word matching but on related items and relationships db1 db 2 doc 2 doc 5. One is the document type definition dtd and the other is the xml schema xsd. If you want to study these subjects first, please visit. Is ontology file created in protege with rdfxml format a. Owl is an ontology language designed for the semantic web. This document is also available in these nonnormative formats.
These include alternative rdf serializations, such as. The structures of xml schema are themselves described using an xml schema. Tbl and others have since been working towards realising this vision, which has become known as the semantic web. This document specifies an xml serialization for owl 2 that mirrors its structural specification. An xml schema defines this syntax and is available as a separate. The owl xml syntax is an xml syntax for owl defined by an xml schema owl 2 xml. The following is an example of an owl 2 ontology written in the xml. Transforming xml schemas into owl ontologies using. Currently, there are two options recommended by thew3c for defining an xml schema.
Introduction to the semantic web tutorial owl syntax abstract syntax used in the definition of the language and the dllite semantics owl in rdf the official concrete syntax rdf xml presentation xml presentation syntax xml schema definition various human readable syntaxes. Chapter 2 an introduction to the owl web ontology language. We present a discussion of xml schema based on the running example in this section. While rdf xml provides for interoperability among owl 2 tools, other concrete syntaxes may also be used. We introduce a simple xml schema as a running example. Being able to translate xml schema models to rdfowl. Finally, section lists the complete example ontology used in this. A product code is 2 digits, a dash, and five digits. This manual process ensures equivalence between the.
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