Service Replacing-based Fault-tolerant Method for Web Services

Current Web Services fault-tolerant technologies cost too much resource due to their static configuration characteristics,and are inconsistent with the idiosyncrasy of Web Services systems.This paper proposes a fault-tolerant method employing service replacement strategy,which counts on the specialty of Web Services systems.The main idea of the strategy is replacing the invalid service with the equivalent service on Internet.The feasibility of this strategy is proved by experiment.