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One of the advantages of Web service technology is it can create added-value services and complete the complex transactions or workflows by combining existing ones. However, they always run in a highly dynamic and change environment, during the execution process, if one component service fails or becomes overloaded, the failed services replacing mechanism is needed to ensure that the running process...
In Web Services composition, effectively appraising of QoS of Web Services is a main method of service selecting. Most of current QoS models do not consider the uncertainty, subjectivity, interacting and business relativity of the non-functional attributes of services. And they lack of the deep and thorough analysis of user requirements. Thus they are not able to provide sufficient support to service...
Self-Adaptation has gained wide attention in SOA (Service Oriented Architecture). Composite services adjust dynamically to the change of environment during execution through adaptation. Most existing performance analyzing methods on composite service neglect the distinguished feature of environment, which impedes their application in self-adaptive composite services. This paper proposes a stochastic...
DM ("device management") service is a new value- added service whose value chain has the typical characteristics of two-sided markets. Based on a review of the literature on two- sided market theory, the paper discusses pricing models for DM service with two agents on one side, which has not been addressed by previous research. The key to successful implementation of the DM service platform...
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