Qinna, a Component-Based QoS Architecture

摘要

Component-Based Software Engineering is quickly becoming a mainstream approach to software development. At the same time, there is a massive shift from desktop applications to embedded communicating systems (e.g. PDAs or smartphones): it is especially the case for multimedia applications such as video players, music players, etc. Moreover, embedded communicating systems have to deal with open aspect: applications may come or leave the system on the fly. A key point of these systems is its ability to rigorously manage Quality of Service due to resource constraints. In this paper, we present a component-based QoS architecture well-suited for open systems, called Qinna. Qinna is defined using Fractal components and takes into consideration the main QoS concepts (specification, provision and management). An analysis and an experiment illustrate answers brought by Qinna to open system issues.