A Framework for Adaptive QoS of Web Services Using Replication
For large-scale access of web services, such as news web services connected to a database, it is challenging to provide the expected QoS attributes, such as response time and availability. Further, using a single server host is not enough to provide the expected non-functional characteristics of the published web services. Especially, if the server host experience any problem, this will downgrade the reliability and the availability of the web services. Service replication is an important technique to support the non-functional properties of the published web services. In this paper, the authors propose a framework to adaptively meet the expected Quality of Service (QoS) attributes of web services under high number of requests using service replication.