QUANCE: Quality-driven automated negotiation for composite web services

Abstract

With the advent of web services, Quality of Service (QoS) serves as a benchmark to differentiate various available services and their providers. QoS characterizes the nonfunctional aspects of a web service and plays a crucial role in the area of dynamic composition of web services. There have been many works on QoS-based negotiation and service selection in deriving an appropriate web service composition. However, automated negotiation is more complex in the context of composite services. The negotiation between a service provider for a composite service and a requester has to be translated into complex one-to-many negotiations that involve the providers of the component services. In this context, this paper proposes an approach, namely, QUANCE that automates the negotiation of QoS parameter values between the service consumer and the service provider of a composite service in a service-oriented environment. This approach is tested using scenarios of an e-governance application that caters to the various operations related to vehicle registration.