Enabling SLA monitoring for component-based SOA applications

This work contributes to the research of how to define a framework that can be plugged to a component-based SOA application to provide SLA monitoring for performance. We define a low intrusive Monitor Controller that listen to asynchronous notifications about the performance of the monitored application, and stores that data in a scalable way. The approach allows flexibility as it defines the Monitor Controller as a non-functional component bound to the monitored entities, and exposing the monitored data through a non-functional interface. A proof-of-concept implementation is described, showing the feasibility of this approach over a middleware that provides asynchronous communication between consumers and providers over a grid environment, and which also serves as a platform for a large-scale SOA.