Monitoring

constraints over software design requires measures that ensure such requirements are met by the delivered product. Achieving this goal is non-trivial, as it involves, at least, identifying how QoS constraint specifications should be checked at the runtime. In this paper we present an implementation of a Model Driven Archi-tecture (MDA) based framework for the runtime mon-itoring of QoS properties. We incorporate the UML2 superstructure and the UML profile for Quality of Service to provide abstract descriptions of component-and-connector systems. We then define transforma-tions that refine the UML2 models to conform with the Distributed Management Taskforce (DMTF) Common Information Model (CIM) (Distributed Management Task Force Inc. 2006), a schema standard for manage-ment and instrumentation of hardware and software. Finally, we provide a mapping the CIM metamodel to a.NET-based metamodel for implementation of the monitoring infrastructure utilising various.NET features including the Windows Management Instru-mentation (WMI) interface