A solution for web service composition based on logic-interface orchestration

In order to solve the dynamic substitution problem of service components in dynamic service environment, the paper proposed a solution, which contains a model called logic-interface orchestration, and a method for service composition based on logic-interface orchestration that realizes the model. The model involves the logic-interfaces that will be bound with service components to compose the service. Each logic-interface has a composition queue of service components to achieve self-compensation. The method uses XML to describe the binding relationships between the logic-interfaces and service components. By updating the XML information, the composite service can adapt to the dynamic changes of service environment. The solution was applied to the Enterprise Service Bus Subsystem. It turned out that the solution facilitates the dynamic replacement of service components and can improve the reliability of the composite service.