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Optimization of service selection for composition is a critical but difficult issue in the area of service-oriented computing. This paper proposes an innovative approach to solve this issue. In the proposed approach, every abstract component service in the composition will be assigned a weight value to represent its importance through user assignment and execution path analysis, and then a weighted...
Web service directory is an important component of SOA-oriented urban spatial information sharing platform. The current UDDI and UDDI-based UBR have been poorly used actually. One the one hand, the business services of urban spatial information sharing platform have some characteristics such as diversity, complexity and security, so the increase of Web services make the maintenance of UBR become very...
A global information model (GIM) is to describe all the engineering information across a service-oriented system design. GIM includes both business and design information of the systems. Business information is the involved services, service providers, service requestors, business objects, and business processes. Design information is the relationships and rules in developing service-oriented systems...
In seeking more profits, many business service providers have turned their attention to the technologies that can enable the delivery and operations of the network-delivered business services more efficiently and highly automated. To that end, many service providers have adopted the shared service model where the service offerings are shared across multiple customers to reduce the costs associated...
QoS (Quality of Service) provisioning is an important factor that determines the success of any software service deployment. Defining what level of quality a software service should publish in the registry is a big challenge because of (i) the lack of requestor's QoS requirements when a service is firstly published, (ii) the dynamic, diversified QoS requirements of SLAs (Service Level Agreement) and...
Software as services (SaS) is emerging as a new application software delivery approach, and has extensively leveraged Web services and other SOA concepts and technologies. Compared to the traditional ones, SaS has the following distinctive features: application delivery over Internet, usage based pricing mechanism, etc. Potentially, this approach can significantly reduce the total cost of ownership...
The demand of providing one's network bandwidth for another such as a business partner or a guest in a form like a so-called free wireless Internet access is rising. However, in some countries like Japan, the law concerning the responsibility of Internet service providers requires not only ISPs who operate roaming service but also anyone who provide access to the Internet to identify an illicit user...
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