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Title:
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SEMANTIC WEB SERVICES: A RESTFUL APPROACH |
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Author(s):
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Otávio Freitas Ferreira Filho , Maria Alice Grigas Varella Ferreira |
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ISBN:
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978-972-8924-93-5 |
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Editors:
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Pedro Isaías, Bebo White and Miguel Baptista Nunes |
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Year:
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2009 |
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Edition:
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1 |
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Keywords:
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Semantic Web. Ontologies. Semantic Web Services. Web Services. Web 2.0. Internet. |
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Type:
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Full Paper |
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First Page:
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169 |
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Last Page:
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180 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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The proposal is to allow the development of semantic Web services according to an architectural style called REST.
More specifically, it considers a REST implementation based on the HTTP protocol, resulting in RESTful Semantic Web
Services. The development of semantic Web services has been the subject of various academic papers. However, the
predominant effort considers Web services designed according to another architectural style named RPC, mainly through
the SOAP protocol. The RPC approach, strongly stimulated by the software industry, aggregates unnecessary processing
and definitions that make Web services more complex than desired. Therefore, services end up being not as scalable and
fast as possible. In fact, REST services form the majority of Web services developed within the Web 2.0 context, an
environment clearly focused on user-generated content and social aspects. The proposal presented here makes use of a
specific selection of existing languages and protocols, reinforcing its feasibility. Firstly, OWL-S is used as the base
ontology for services, whereas WADL is for syntactically describing them. Secondly, the HTTP protocol is used for
transferring messages; defining the action to be executed; and also defining the execution scope. Finally, URI identifiers
are responsible for specifying the service interface. The final compilation proposed results in an ontology named
RESTfulGrounding, which extends OWL-S. |
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