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With the rapid development of the Internet, web service technology has been extensively used in distributed applications and is highly likely to replace other various technologies for the distributed application development. However, concerning most hard issues of the web services authentication, no proper solutions have been discovered and available for use now. Due to its dynamic and cross-domain...
The availability of high performance network brings up a number of distributed cooperative applications. However, most of the current cooperative applications are developed in a certain domain, and the system design or the functional modules cannot be reused in the other application scenarios. While, after analyzing a lot of cooperative systems in different scenarios, we found that these systems contain...
The availability of high performance network brings up numerous interactive distributed cooperative applications. Most of these cooperative applications are oriented a certain domain, and the system or part of its modules are difficult to be reused in any other application scenarios. However, after analyzing numerous cooperative applications, we found that these systems contain some common modules...
With the development of the Internet, Web Services technology has gradually become the development direction of the e-business, e-government and other fields, and the corresponding security mechanism has received unprecedented attention, while how to design an integrated architecture to enhance web services security remains a problem very difficult to tackle with, and there are no good solutions to...
Web service runtime is an important infrastructure middleware for service-based applications. It processes exchanged messages according to web service protocols. Correct implementation of web service protocols is critical for ensuring the reliability of web service runtime. In this paper, we first introduce a Service-Oriented Description Language (SODL) to precisely and concisely describe message...
With the advent of cloud computing, more services should be delivered from a cloud or datacenter to clients via Internet. Web Services has many mature specifications and has become a popular mode to support cloud application. However, the performance has been a key character to guarantee the quality of remote service in a cloud. In particular, the Simple Object Access Protocol (SOAP), being based...
Integration between business processes and business rules is necessary for some applications which not only hold numerous business knowledge or policies but also need the intercommunication among some distributed and heterogeneous components. This paper proposes a main process and multiple bypass process to focus the integration occurring between a bypass process and a rule set. In order to hold the...
With web service platforms such as Web Service Container, BPEL Engine, Enterprise Service Bus (ESB) are more and more widely used, the management of these platforms become an important issue. The management information of these platforms is similar and the requirements for managing web service platforms are varied as more and more web service platforms appear. In this paper, a component-based approach...
With powerful features and cross platform character, web service has been applied in the field of information technology widely. To meet dynamic needs of enterprises, it tends to generate new web applications through service compositions. Due to flaw of designed process or incorrect input, to composite service may encounter various faults during execution. Moreover, the faults often continue to accumulate...
The rapid development of web service technology brings up a number of crucial requirements for designing service computing runtime, such as supporting multiple message exchange patterns, switching among different transports, integrating various extended web service protocols and achieving robust performance under high concurrency. Based on staged event-driven architecture, we propose a novel architecture...
Increasingly, software needs to dynamically adapt its structure and behavior at runtime in response to changing conditions in the supporting computing, network infrastructure, and in the surrounding physical environments. By high complexity, adaptive programs are generally difficult to specify, verify, and validate. Assurance of high dependability of these programs is a great challenge. Efficiently...
The implementation of Web services specifications is the key issue of Web services container which is the infrastructure of SOC. The specifications are always depicted in natural language, which may lead to misunderstanding or ambiguity. In this situation, the implementations of the same specification by different containers will re-introduce interoperability which is supposedly addressed by Web services...
Scientific workflow has become an important tool used by scientists to operate distributed resources in current scientific research. However, the gap between scientific domain and workflow specification has increased the difficulty of adopting scientific workflow. Further, the lack of collaborative mechanism has gradually become a major obstacle for scientists to share scientific workflow. In this...
In this paper, we present a formal description of Web services container architecture based on Z notation. This description major focuses on internal behavior of a Web services container on processing a Web services request. First, we present a formal model of tailored XML which provides a unified data structure for executing Web services specifications and data transformation. Then, we present a...
In this paper, we present a formal model of Web services transport layer based on CSP which addresses multiple transport, multiple Message Exchange Patterns (MEPs) and dynamic switching among multiple transport protocols. This approach abstracts message transferred over networks as transport object and splits message transportation process of a transport protocol into two CSP processes: a transport...
In this paper, we present an adaptive transport framework which addresses multiple message exchange patterns (MEPs) and transparent switching between multiple transports for Web services. In the framework, we separate the transportation process into transport input stage and transport output stage by using pipelined pattern. Moreover, we introduce a set of abstractions, such as transport protocol,...
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