This paper focuses on the QoS management of IT systems based on object-oriented distributed applications. It presents a way of specifying application-level QoS information during the development of object-based distributed applications: a UML profile (an extension to the UML) based on QoS concepts and principles defined by ISO/ITU-T in their works on QoS in ODP, that can be applied to the specification of QoS management information independently of those particular details related to the distributed object-based distributed computing platform architecture used in each case. It also presents a solution (another UML profile) for modeling the instrumentation of QoS monitoring mechanisms within the monitored applications.
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