Graphical Schema Editing for StarDog OWL/RDF Databases using OWLGrEd/S
Kārlis Čerāns, Guntis Bārzdiņš, Renārs Liepiņš, Jūlija Ovčiņņikova, Sergejs Rikačovs, Artūrs Sproģis · 2012
Abstract. The developers of StarDog OWL/RDF DBMS have pioneered a new use of OWL as a schema language for RDF databases. This is achieved by adding integrity constraints (IC), also expressed in OWL syntax, to the traditional “open-world ” OWL axioms. The new database paradigm requires a suitable visual schema editor. We propose here a two-level approach for integrated visual UML-style editing of extended OWL+IC ontologies: (i) introduce the notion of ontology splitter that can be used in conjunction with any OWL editor, and (ii) offer a custom graphical notation for axiom level annotations on the basis of compact UML-style OWL ontology editor OWLGrEd.