τOWL-Manager: A Tool for Managing Temporal Semantic Web Documents in the τOWL Framework
نویسندگان
چکیده
Several semantic web-based applications (e.g., ecommerce, e-government and e-health applications) require temporal versioning of ontology instances, in order to represent, store and retrieve time-varying ontologies. However, commercial systems do not provide any support for creating and updating temporal ontologies. In this paper, we propose a prototype system, named Temporal OWL 2 Web Ontology Language Manager (τOWL-Manager), which implements our τOWL framework and supports temporal versioning of ontology instances. It allows (i) creating and validating a temporal semantic web document, by augmenting an OWL 2 ontology schema with a set of logical and physical annotations, and (ii) creating and maintaining time-varying ontology instance documents, by generating a new timestamped version of each ontology instance document when updates are applied. Keywords–Semantic Web; Ontology; OWL 2; τXSchema; Logical annotations; Physical annotations; Temporal database; XML Schema; XML
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