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Competitions of shared web resources have been widely concerned today. Under the circumstances of networks, especially in distributed systems, central supervisor can hardly be implemented, which makes it more complicated to prevent deadlock problems. This paper describes the competitions of web services for shared web resources using CSP method. Deadlocks can be analyzed based on the formal model...
The web environment creates risks together with benefits for web services. Web services often engage attacks from hackers or anyone having hostile intensions. The behavior of services is often effected by the environment changes which should be included in its specifications. In addition, services usually have some mechanisms provided by the developers to deal with the environment changes, especially...
Competitions of shared Web resources have been widely concerned today. Under the circumstances of networks, no central supervisor can be implemented, which makes it more complicated to avoid deadlock problems. This paper describes the interactions of Web services and shared web resources using CSP method. Deadlocks can be analyzed based on the formal model.
The service oriented architecture is a widely used concept to construct the Web applications. Among several implementations, the bus model is proposed to coordinate heterogeneous services. However, it is difficult to analyze the properties of the composition pattern using buses in practice. Therefore, it is extremely necessary to provide a theoretical foundation for it. In this paper, we focus on...
Bus model is a kind of service integration model that is responsible for integrating heterogeneous services. Buses not only store the messages exchanged between services, but also coordinate the service executions. Recently, the bus model has been widely used in engineering field to manage interactions between services and support a given choreography. In this paper, we propose the formal design of...
Nowadays the B/S (browser/server) architecture has become one of the most popular approaches to implement the Web service. Because of the instability of the Web environment, keeping the consistency of the data is of essential importance. Consequently we turn to formal methods intending to avoid inconsistencies in the B/S architecture. This paper describes a service-oriented system with the B/S architecture...
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