Handling QoS in MDA: A Discussion on Availability and Dynamic Reconfiguration

In this paper, we discuss how Quality-of-Service (QoS) can be handled in the Model-Driven Architetcure (MDA) approach. In order to illustrate our discussion, we consider the introduction of availability and dynamic reconfiguration QoS concepts at platform-independent level. We discuss the consequences of the introduction of these concepts in terms of the realizations of platform-independent models in different platforms. The platforms considered provide varying level of support for the QoS concepts introduced at the platform-independent level.