Previewing OWL Changes and Refactorings Using a Flexible XML Database
نویسندگان
چکیده
During their lifecycle, ontologies are changed for diverse reasons: their vocabulary is enhanced to enable additional application or annotation possibilities, their expressivity is restricted to speed up reasoning, their internal structure is refactored for alignment with other ontologies or to facilitate maintenance, and many more. Any such change can have serious consequences on applications using an ontology; therefore it has to be done with care. TNTBase is a versioned XML database supporting virtual documents: XQuery-based views on XML documents that appear to the user as files. We use this feature in order to preview changes to OWL 2 XML ontologies: any proposed change is first tested in a virtual document, before it is applied to the actual ontology. We demonstrate the flexibility of this approach in several cases of changes, discuss the limitations of working with ontologies on XML level, and propose an integration of TNTBase as a backend with ontology editors.
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