Blair, G.S., Andersen, A., Blair, L., Coulson, G.: The role of reflection in supporting dynamic QoS management functions. In: Seventh International Workshop on Quality of Service (IWQoS '99). Number MPG-99-03 in Distributed Multimedia Research Group Report, London, UK, IEEE/IFIP, Lancaster University (1999)  Home/Search   Document Details and Download   Summary   Related Articles   Check

No context found.

Blair, G.S., Andersen, A., Blair, L., Coulson, G.: The role of reflection in supporting dynamic QoS management functions. In: Seventh International Workshop on Quality of Service (IWQoS '99). Number MPG-99-03 in Distributed Multimedia Research Group Report, London, UK, IEEE/IFIP, Lancaster University (1999)

....lightweight (reflective) components in a COM C environment. We have also developed a QoS management subsystem for Open ORB, exploiting the reflective features for QoS monitoring and adaptation. An associated audio application has also been developed. Further details of this work can be found in [7]. Overall, we now have considerable experience of reflective middleware platforms and remain convinced that this is the right approach for the design of next generation middleware platforms. A number of key issues remain unresolved though, including issues relating to maintaining the consistency ....

Blair, G.S., Andersen, A., Blair, L., Coulson, G., "The Role of Reflection in Supporting Dynamic QoS Management Functions", Proceedings of the IEEE/IFIP International Workshop on Quality of Service (IWQoS'99), London, June 1999.

....implementation of an audio application on top of the RM ODP ORB. In addition, we are also addressing the issue of broadening the number of computational resources managed by the system. Future work will also address the integration of the resource model with the QoS management framework defined in [Blair99a]. Acknowledgements Hector A. Duran Limon would like to thank his sponsor, the Autonomous National University of Mexico (UNAM) Particular thanks are also due to Jean Bernard Stefani and his group at CNET. We also thank Rui Moreira for helpful comments on early drafts of the paper. ....

Blair, G.S., Andersen, A., Blair, L., Coulson, G., "The Role of Reflection in Supporting Dynamic QoS Management Functions", Internal Report MPG-99-03, 16 Computing Department, Lancaster University, Bailrigg, Lancaster, LA1 4YR, U.K., 199 January 1999.

....both the QoS properties provided by a service and the actions taken in order to attain the contracted level of QoS. The former corresponds to static QoS management aspects, which include the initial component configuration and the amount of resources required to provide the stated level of QoS [Blair99c]. The latter, in contrast, relates to dynamic QoS management aspects which involves run time monitoring and dynamic reconfiguration of both the component configuration and the configuration of resources [Blair99c] It is worth mentioning that we are dealing with both application level services and ....

.... configuration and the amount of resources required to provide the stated level of QoS [Blair99c] The latter, in contrast, relates to dynamic QoS management aspects which involves run time monitoring and dynamic reconfiguration of both the component configuration and the configuration of resources [Blair99c]. It is worth mentioning that we are dealing with both application level services and middleware level services. Within Xelha static QoS management aspects are specified in terms of task graphs together with their associated QoS specifications. There is a one to one relationship between a task ....

[Article contains additional citation context not shown here]

Blair, G.S., Andersen, A., Blair, L., Coulson, G., "The Role of Reflection in Supporting Dynamic QoS Management Functions", Internal Report MPG-99-03, Computing Department, Lancaster University, Bailrigg, Lancaster, LA1 4YR, U.K., January 1999.

No context found.

Blair, G.S., Andersen, A., Blair, L., Coulson, G., "The Role of Reflection in Supporting Dynamic QoS Management Functions", Internal Report MPG-99-03, Computing Department, Lancaster University, Bailrigg, Lancaster, LA1 4YR, U.K., 199 January 1999.

....both the use of QoS annotations on the interacting interfaces and the introduction of a QoS management framework. Management objects are in charge of both monitoring QoS violations and selecting an adequate adaptation strategy. A detailed description of the QoS management framework may be found in [2]. 2.3 The Meta space The compositional meta model deals with the way a composite object is composed, i.e. how its components are inter connected, and how these connections are manipulated. There is a compositional meta model per object. The environmental meta model is in charge of the ....

....of an audio application on top of the resource framework. In addition, we are also addressing the issue of broadening the number of computational resources managed by the system. Future work will also address the integration of the resource model with the QoS management framework defined in [2]. 6. Related Work There has been a growing interest in using reflection to achieve adaptation at the middleware level [9, 20, 13, 19] However, few of these address the issue of resource management and those who deal with it follow a coarsegrained approach. Some non reflective approaches that ....

Blair, G.S., Andersen, A., Blair, L., Coulson, G., "The Role of Reflection in Supporting Dynamic QoS Management Functions", Internal Report MPG-99-03, Computing Department, Lancaster University, Bailrigg, Lancaster, LA1 4YR, U.K., 199 January 1999.

....between these projects and our proposals is that our work introduces overall architectural constraints based on explicit modeling of the software architecture. In previous research, the Lancaster authors have also developed a QoS management scheme for adaptation based on the use of timed automata [Blair99b]. While providing some support for adaptation, this work does not have the breadth of coverage of the work described in this paper. Finally, a number of other middleware projects include important elements of configurability and re configurability including DIMMA [Donaldson98] Tao [Schmidt97] and ....

Blair, G.S., A. Amdersen, L. Blair, G. Coulson, "The Role of Reflection in Supporting Dynamic QoS Management Functions", Proceedings of the IEEE/IFIP International Workshop on Quality of Service (IWQoS'99), London, June 1999.

No context found.

G. S. Blair, A. Andersen, L. Blair, and G. Coulson. The Role of Reflection in Supporting Dynamic QoS Management Functions. Proceedings of the 7th IEEE International Workshop on Quality of Service (IWQoS'99), June 1999.

No context found.

G. S. Blair, A. Andersen, L. Blair, and G. Coulson. The Role of Reflection in Supporting Dynamic QoS Management Functions. In IEEE/IFIP International Workshop on Quality of Service (IWQoS), London, UK, June

No context found.

G. S. Blair, A. Andersen, L. Blair, and G. Coulson. The Role of Reflection in Supporting Dynamic QoS Management Functions. In IEEE/IFIP International Workshop on Quality of Service (IWQoS), London, UK, June

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC