A QoS_Based Self Adaptive Control Strategy and Implementation for BPEL Process

The traditional BPEL language statically describes the binding relationship of business process and the required web services, and it can’t adapt to the dynamic operating SOA environment. This paper presents a late binding and dynamic service based on the selected BPEL process orchestration and implementation mechanisms. It designs and implements a dynamic service invoking framework based on this design. In the process of BPEL execution, the service selection and service call based on QoS operated interactions, so that it has some self adaptive features to improve the robustness of the system, also the efficiency of the system is ensured by the static filtering and ranking mechanisms.