d.). We used J2SDK 1.4.2
to develop applications of the system.
Figure 6 presents a sequence diagram that displays object interactions arranged in
a time sequence. The actor who is user or knowledge engineer may set up environment
variables by invoking the object Configurator. The object SearchOwl activates
Figure 6. A sequence diagram of the search system in tourism ontology
Application of the Semantic Web Based on the Domain-Specific Ontology 299
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Figure 8. Query result for the scenario 2
Figure 7. Treeview for the tourism ontology
00 Joo, Lee, and Jeong
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
of Idea Group Inc. is prohibited.
the inference engine to create a new inference model with the query data sets and
returns search results of RDF triples by exploiting RDQL (World Wide Consortium,
2004b). The InferModel invokes the OwlReasoner to create a new inference
model that is built in triple types (subject, predicate, object) as an extension of the
Jena RDF triple.
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