1. 1 Copyright © 2005 Access Innovations, Inc. OWL Mapping Thesaurus Format NEXT GENERATION KNOWLEDGE ORGANIZATION SYSTEMS: INTEGRATION CHALLENGES AND STRATEGIES The 7 th Networked Knowledge Organization Systems (NKOS) Workshop Joint Conference on Digital Libraries June 10-11, 2005 Jay Ven Eman, Ph.D., CEO Access Innovations, Inc. j_ven_eman@accessinn.com 505-265-3591 505-256-1080 FAX www.accessinn.com www.dataharmony.com

2. 2 Copyright © 2005 Access Innovations, Inc. OWL Web Ontology Language W3C Recommendation 10 February 2004 http://www.w3.org/TR/2004/Rec-owl-guide-20040210/ http://www.w3.org/TR/2004/Rec-owl-ref-20040210/ http://www.w3.org/TR/2004/Rec-webont-req-20040210/

3. 3 Copyright © 2005 Access Innovations, Inc. OWL “…is intended to provide a language that can be used to describe  the classes and  relations between them that are inherent in Web documents and applications.”

4. 4 Copyright © 2005 Access Innovations, Inc. OWL Formalize a domain by defining  Classes  Properties of those classes Define individuals  Assert properties about them Reason about these  Classes and  Individuals

5. 5 Copyright © 2005 Access Innovations, Inc. Ontology From philosophy – the science of describing  Kinds of entities in the world  How they are related

6. 6 Copyright © 2005 Access Innovations, Inc. OWL Ontology May include  Classes  Properties  Instances Capture semantics Multiple, distributed, related ontology schema Normative OWL exchange syntax RDF/XML  Resource Description Framework/Extensible Markup Language

7. 7 Copyright © 2005 Access Innovations, Inc. Taxonomy, Thesaurus, & Ontology Taxonomies and thesauri are not ontologies They are entities or “conceptualizations” Ontology – science of describing kinds of entities For thesauri and taxonomies  “a specification of a conceptualization”

8. 8 Copyright © 2005 Access Innovations, Inc. Taxonomy, Thesaurus, & Ontology OWL output  Provides semantic meaning to these kinds of entities or conceptualizations  Web resource  Accessible to automated processes

9. Hierarchical View Term

10. 10 Copyright © 2005 Access Innovations, Inc. DH OWL Output Open DHProject.owl

11. 11 Copyright © 2005 Access Innovations, Inc. DHProject.owl <!DOCTYPE rdf:RDF [ ]> <rdf:RDF xmlns="http://localhost/owlfiles/DHProject#" xmlns:DHProject ="http://localhost/owlfiles/DHProject#" xmlns:base ="http://localhost/owlfiles/DHProject#" xmlns:owl ="http://www.w3.org/2002/07/owl#" xmlns:rdf ="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:xsd ="http://www.w3.org/2001/XMLSchema#"> OWL export from MAIstro DHProject Ontology Declaration XML entities Default namespace Current ontology Base URI for this document Namespaces for rdf, rdfs, & xsd Ontology header Thesaurus Specification

12. 12 Copyright © 2005 Access Innovations, Inc. DHProject.owl

13. 13 Copyright © 2005 Access Innovations, Inc. DHProject.owl Agribusiness Agriculture Agronomy American music Architecture End of Ontology Specification

14. Hierarchical View Term

15. 15 Copyright © 2005 Access Innovations, Inc. DHProject.owl Agribusiness Agriculture Agronomy American music Architecture

16. 16 Copyright © 2005 Access Innovations, Inc. DHProject.owl Band music Bands (Music) Baroque music Bluegrass music Brass instruments Business Chamber music

17. 17 Copyright © 2005 Access Innovations, Inc. Thank you! Questions? OWL Mapping Thesaurus Format NEXT GENERATION KNOWLEDGE ORGANIZATION SYSTEMS: INTEGRATION CHALLENGES AND STRATEGIES The 7 th Networked Knowledge Organization Systems (NKOS) Workshop Joint Conference on Digital Libraries June 10-11, 2005 Jay Ven Eman, Ph.D., CEO Access Innovations, Inc. j_ven_eman@accessinn.com 505-265-3591 505-256-1080 FAX www.accessinn.com www.dataharmony.com