Relational patterns in OWL and their application to OBO

Robert Hoehndorf, Anika Oellrich, Michel Dumontier, Janet Kelso, Heinrich Herre, Dietrich Rebholz-Schuhmann

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

1 Citation (SciVal)


Directed acyclic graphs are commonly used to represent on-tologies in the biomedical domain. They provide an intuitive means toformalize relations that hold between ontological categories. However,their semantics is usually not explicit. We provide a semantics for a partof the OBO Flatfile Format by extending OWL with a method to expressrelational patterns. These patterns are OWL axioms with variables forclasses. The variables can only be filled with named classes. Addition-ally, we provide a semantics for open patterns in OWL. Our method isapplicable to the OBO Flatfile Format, and provides a means to designOWL ontologies using complex ontology design patterns. Therefore, itleads not only to an integration of the OBO Flatfile Format and OWL,but extends OWL with an intuitive interface for designing ontologies us-ing complex definition patterns. A prototypic implementation and testresults are available at
Original languageEnglish
Title of host publicationOWL: Experiences and Directions (OWLED)
Number of pages10
Publication statusPublished - 01 Jun 2010
EventOWL: Experiences and Directions - San Francisco, United States of America
Duration: 21 Jun 201022 Jun 2010


WorkshopOWL: Experiences and Directions
Country/TerritoryUnited States of America
CitySan Francisco
Period21 Jun 201022 Jun 2010


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