Ontology of Ontology Patterns as Linked Data Integration Tool Miroslav Vacura and Vojtěch Svátek Faculty of Informatics and Statistics, University of Economics W. Churchill Sq.4, 130 67 Prague 3, Czech Republic vacuram|svatek@vse.cz Abstract. The paper present preview of ontology of ontology design patterns and transformation patterns being developed as support tool for emerging ontology design techniques and methodologies. The Linked Data initiative was started by Tim Berners-Lee as an architec- tural vision for the Semantic Web. It explores the idea of Semantic Web as puting emphasis on making links so both people and machines can explore the interconnected web of data [1]. knows Relation-type Person Person FOAF T1 Person (n-ary relator) Person T2 Role Relation-type Role Person (n-ary relator) Person T3 Relation-type Event Person (n-ary relator) Person Event Time-interval Event Fig. 1. FOAF Transformations As an use-case we choose the FOAF project and it’s ‘knows’ relation. Since 2004 there was more than 1 million FOAF documents and 79% of them utilized the knows property [2]. The typical needs of ontology engineer working on top of some Linked Data source comprises of transformation or aligning data to some more complex ontology either newly designed or already existing. This is also case of knows relation that in its FOAF implementation is very simple and doesn’t allow expressing more complex relations among individuals. In the case of newly designed ontology use of ontology design patterns (ODPs) proved the most effective and the least time consuming way of doing it. In con- text of our use-case we can think of several iterations of ODPs that represent more or less complex or expanded view on ‘knows’ relation as is depicted on Fig. 1. These ODPs can be connected together using predefined transformation patterns (OPPL), It seems to us that having library of such predefined pattern transformations at hand could make such design tasks easier and much faster. Our ongoing work proposes development of such library on top of existing por- tal OntologyDesignPatterns.org, but 1) in form of ontology, 2) with explicitly stated relations, 3) that are formally defined and 4) with appropriate transforma- tions (OPPL) between related patterns, that enable automatic transformation from one pattern to another. We also focus on providing more fine-grained anal- ysis of relations (like specialization/generalization) between ontology ODPs. SpecialisationOf Ontology Patterns (OP) Logical ODP SourceODP Content ODP ODP OTP TargetODP Fig. 2. Design Patterns Transformations Ontology Such a library would could be easily integrated with methodologies like Ex- treme Design (XD) [3] and respective development tools like NeON or Protegé. This extended abstracts presents early preview of architecture of ontology being developed on Fig. 2. For additional information see http://keg.vse.cz. Acknowledgments This work has been partially partially supported by the IGS 4/2010 and by the CSF grant no. P202/10/1825 (PatOMat - Automation of Ontology Pattern Detection and Exploitation). References 1. Tim Berners-Lee. LinkedData. http://www.w3.org/DesignIssues/LinkedData. html, 2009. 2. Li Ding, Lina Zhou, Tim Finin, and Anupam Joshi. How the semantic web is being used: An analysis of foaf documents. In Proc. of the 38th ICSS, 2005. 3. Valentina Presutti et al. eXtreme Design with Content Ontology Design Patterns. In Eva Blomqvist et. al., editor, Proc. of the WOP 2009, coll. with ISWC-2009, volume 516. CEUR Workshop Proceedings, 2009.