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| Untersuchte Arbeit: Seite: 17, Zeilen: 1-18 |
Quelle: Cabral et al 2004 Seite(n): 225-226, Zeilen: 225:38-39 - 226:1-19 |
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| [Whilst promising to revolutionize e-Commerce and enterprise-wide integration, current standard technologies for Web Services, i.e. WSDL provide only syntactic-level descrip]tions of their functionalities, without any formal definition to what the syntactic definitions might mean. In many cases, Web Services offer little more than a formally defined invocation interface, with some human oriented meta-data that describes what the service does, and which organization developed it, i.e. through UDDI [35] descriptions. The software applications may invoke Web Services using a common, extendible communication framework, i.e. SOAP [33]. However, the lack of machine-readable semantics necessitates human intervention for automated service discovery and composition within open systems, thus hampering their usage in complex business contexts.
Semantic Web Services (SWS) [44] relax this restriction by augmenting Web Services with rich formal descriptions of their capabilities, thus facilitating automated composition, discovery, dynamic binding, and invocation of services within an open environment. A prerequisite to this, however, is the emergence and evolution of the Semantic Web [38], which provides the infrastructure for the semantic interoperability of Web Services. Web Services will be augmented with rich formal descriptions of their capabilities, such that they can be utilized by software applications or other services without (or less) human assistance or highly constrained agreements on interfaces or protocols. Thus, SWSs have the potential to change the way knowledge and business services are consumed and provided on the current Web. [33] SOAP 1.2 Part 1, W3C Working Draft; http://www.w3.org/TR/soap12-part1/ [35] Universal Description, Discovery and Integration specifications; http://www.uddi.org/specification.html [38] T. Berners-Lee, J. Hendler and O. Lassila; The Semantic Web, Scientific American 284(5):34-43, 2001 [44] Semantic Web Services; http://www.daml.org/services/ |
[Seite 225]
Whilst promising to revolutionize eCommerce and enterprise-wide integration, current standard technologies for Web services (e.g. WSDL [6]) provide only syntac- [Seite 226] tic-level descriptions of their functionalities, without any formal definition to what the syntactic definitions might mean. In many cases, Web services offer little more than a formally defined invocation interface, with some human oriented metadata that describes what the service does, and which organization developed it (e.g. through UDDI descriptions). Applications may invoke Web services using a common, extendable communication framework (e.g. SOAP). However, the lack of machine readable semantics necessitates human intervention for automated service discovery and composition within open systems, thus hampering their usage in complex business contexts. Semantic Web Services (SWS) relax this restriction by augmenting Web services with rich formal descriptions of their capabilities, thus facilitating automated composition, discovery, dynamic binding, and invocation of services within an open environment A prerequisite to this, however, is the emergence and evolution of the Semantic Web, which provides the infrastructure for the semantic interoperability of Web Services. Web Services will be augmented with rich formal descriptions of their capabilities, such that they can be utilized by applications or other services without human assistance or highly constrained agreements on interfaces or protocols. Thus, Semantic Web Services have the potential to change the way knowledge and business services are consumed and provided on the Web. 6. Christensen, E. Curbera, F., Meredith, G., Weerawarana, S. Web Services Description Language (WSDL), W3C Note 15. http://www.w3.org/TR/wsdl. (2001) |
Ohne Hinweis auf eine Übernahme. |
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