Virtual trustworthy service for QoS guarantee
面向QoS保障的虚拟可信服务*

Currently, service computing paradigm lacks the support of Trustworthiness. This paper proposed a new methodology virtual trustworthy service (VTS) to guarantee the QoS of service. Firstly, presented an adaptive feedback control framework based on VTS to guarantee the QoS of service. Secondly, under this VTS based QoS guarantee framework, made several QoS maintain schemes: dynamic establishment algorithm, real-time assessment algorithm and dynamic adjustment algorithm. Finally through analysis of the simulation experiment, the results demonstrate that the VTS based adaptive QoS guarantee Framework can effectively guarantee the QoS of service, and provide run-time QoS guarantee support.