Design And Implementation Of SOA Systems Based On Semantic Web Services

Service-oriented architecture (SOA) represents a model in which small, looselycoupled pieces of application functionality are published, consumed, and combinedwith other applications over a network. As a way to implement SOA, web serviceprovides many XML-based middlewares, which is well encapsulated, loosely coupled,standard-based and highly integrated and can meet the requirements of SOA model.Now a series of XML-based specifications were accepted by the industry and evolvedinto the core technology of web services: service provider can use WSDL(WebServices Description Language) to describe the Web services, use UDDI(UniversalDescription, Discovery and Integration) to publish and find web services, use SOAP(Simple Object Access Protocol) to bind and invoke the web services afterfinding it. Web service inherits the advantages of XML language, and it is independentof the development language and platform. Meanwhile, it supports the international open specification.OWL-S it based OWL is the primary production for the describing model of semantic Web-Service in international,it is a mark model for describing Web service,it provide a mark symbols set that is explicable and precise to describe the attributes and functions of Web Service for computer.OWL-S uses ServiceProfile,ServiceModel and ServiceGrounding to describe"What the service does?","how it works?","How to access it?"This paper provides an introduction to the basic concepts and architecture of SOA (Service-Oriented Architecture),the features of Web Service technology, anddiscusses the relationship between SOA and Web Services. It also discusses a WebServices-based mechanism that implements the SOA in detail, and gives animplementation system named SWSOA(Semantic Web Services-based ServiceOriented Architecture). It includes the general client as the service requestor; UDDIServer as the service registry and Web services Runtime as service provider。...