An Approach to Assure QoS for Dynamically Reconfigurable Component-Based Software Systems

The main concept of dynamic reconfiguration is to make a system to change from one configuration to another during run time, without shutting down and rebooting the system. This is very helpful to avoid downtime during software maintenance. Providing various quality of services (QoS) namely, adaptability, availability and maintainability are the major challenges faced during dynamic reconfiguration for component based systems. This work argues that the main benefit to make dynamic reconfiguration for component systems is to minimize application disruption. A quantitative evaluation for QoS assurance to the proposed work is conducted in two steps. First, reconfigurable component model is implemented using reconfiguration strategies. Second, each reconfiguration strategy is tested using reconfiguration benchmark results and then, testing results are evaluated. Thus the QoS characteristics can be achieved using some constraints under some acceptable environment.