The critical business requirements and compelling nature of the competitive landscape are pushing Information Technology systems away from the traditional centrally controlled corporate-wide architectures towards dynamic, loosely coupled, self-defining and service-based solutions. Web services are regarded as a key technology for addressing the need for connecting extended applications and prov...

Improve the quality of web service composition using the petri nets and ontology. Previously web services are design independently. These kinds of services are not compatible. We observe the different security issues. Now in this paper we design new semantic web networks using petri nets and ontology. Start the interaction process levels display the decisions using colored petri nets environmen...

With the current evolution of applications towards distributed deployment on heterogeneous systems, possibly owned by different business players, subsystems typically interact through XML-messages (although alternatives exist) to ensure proper operation of the application. In this context the Web service technology is becoming the main player. Despite the impressive efforts to standardize Web s...

previous electronic commerce (ec) studies have found thatconsumer characteristics are important when considering issues related tothe acceptance of online shopping. however, most studies have focusedon a single product or similar products. the effects of different producttypes have been relatively neglected. to overcome this limitation, thepurpose of this study was to explore the effects of dif...

Web Services have been widely adopted in business projects, and almost all Web Service developers agree that security factors are the principal components that must be taken into consideration. A large number of security metrics and measurements is available for specific business needs, and the best practice for different business demands is therefore needed if the quality of service security m...

The OGSA definition of a Grid Service as a transient, stateful and dynamically instantiated Web Service introduced new authentication and authorization requirements beyond those already established for existing Grid environments. However such design features have begun to be developed currently following a pre-Web Services approach in two aspects: in the first place making a clear separation of...

  Network and processing overhead associated with web services is a significant challenge to its performance. As a result, web service providers often announce a service level agreement. This ensures that consumers, who pay for the service, can get the service at a given quality level. In this paper, we study the competition between two providers offering functionally the same web services, whe...

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Web services are an important series of industry standards for adding semantics to web-based and XML-based communication, in particular among enterprises. Like the entire series, the security standards and proposals are highly modular. Combinations of several standards are put together for testing as interoperability scenarios, and these scenarios are likely to evolve into industry best practic...

We have designed a novel server-side data validation service, based upon semantic web technologies to solve the lack of data validation and bypassing validation issues. The NDVS consists of five components: RDFa annotation for elements of web pages, interceptor, RDFa extractor, RDF parser, and data validator. Our solution is implemented as a prototype. In this paper, we have conducted a pilot s...