Performance Analysis of a Composite Service Providing System in a Context-Aware Computing Environment

There are a variety of users and devices in a context–aware computing environment. In this environment, the service provided to a user may be the composition of diverse services rather than one independent service. Before user’s devices provide the composite service to the user, they should perceive users' needs by gathering related information segments from other surrounding devices and/or sensors. We consider a context–aware computing environment providing composite and adapted service to users and propose an information processing model that characterizes the device where the collected data should be processed through services and/or applications. Based on this model, we provide an analytical tool to obtain some performance measures of the context–aware computing environment.