Service Selection of Ensuring Transactional Reliability and QoS for Web Service Composition

Abstract EN

Service-Oriented Architecture (SOA) provides a flexible framework of service composition.

Using standard-based protocols, composite service can be constructed by integrating component services independently.

As component services are developed by different organization and offer diverse transactional properties and QoS characteristics, it is a challenging problem how to select suitable component services which ensure reliable execution of composite Web service and construct the optimal composite Web service.

In this paper, we propose a selection approach that combines transactional properties of ensuring reliability and QoS characteristics.

In the selection approach, we build automaton model to implement transactional-aware service selection and use the model to guarantee reliable execution of composite Web service.

We also define aggregation functions, and use a Multiple-Attribute Decision-Making approach for the utility function to achieve Qos-based optimal service selection.

Finally, two scenarios of experiments are presented to demonstrate the validity of the selection approach.