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The OWL API: A Java API for OWL ontologies

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  • Design

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untitled Semantic Web 2 (2011) 11–21 11 DOI 10.3233/SW-2011-0025 IOS Press The OWL API: A Java API for OWL ontologies Editor(s): Pascal Hitzler, Kno.e.sis Center, Wright State University, Dayton, USA Solicited review(s): Jérôme Euzenat, INRIA Grenoble Rhône-Alpes, France; Peter Haase, Fluid Operations, Walldorf, Germany; Frederick Maier, Kno.e.sis Center, Wright State University, Dayton, USA Matthew Horridge and Sean Bechhofer * School of Computer Science, Kilburn Building, Oxford Road, University of Manchester, M13 9PL, United Kingdom E-mail: [email protected] Abstract. We present the OWL API, a high level Application Programming Interface (API) for working with OWL ontologies. The OWL API is closely aligned with the OWL 2 structural specification. It supports parsing and rendering in the syntaxes defined in the W3C specification (Functional Syntax, RDF/XML, OWL/XML and the Manchester OWL Syntax); manipulation of ontological structures; and the use of reasoning engines. The reference implementation of the OWL API, written in Java, includes validators for the various OWL 2 profiles – OWL 2 QL, OWL 2 EL and OWL 2 RL. The OWL API has widespread usage in a variety of tools and applications. Keywords: OWL, API, Java, reasoning, application development 1. Introduction The Web Ontology Language OWL has been a W3C Recommendation [34] since 2004, with OWL 2 [43] refining and extending the original specification. A pre-requisite for the success and adoption of languages is the existence of tooling, and OWL is no exception, with a wide range of (free, open-source and commer- cial) tools now available. These tools support the cre- ation and editing of OWL ontologies, reasoning over ontologies, and the use of ontologies in applications. In this paper, we discuss the OWL API, a high level Application Programming Interface (API) that sup- ports the creation and manipulation of OWL Ontolo- gies. The OWL API has been available since 2003, and has undergone a number of design revisions,

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