Modelling QoS Characteristics of Multimedia Applications

Multimedia data such a s audio and video streams have started t o be incorporated into mission-critical scenarios such a s medical application s and digital television studios. Because of the enrichment the y bring to application content we believe that this trend will continue and more and more mission critical applications will begin to incorporate multimedia data. In these scenarios th e quality of the media being presented i s important and resources have t o be properl y allocated and scheduled in order t o preserve this quality. Furthermore, there i sa requirement for applications t o be modifiable while the y run, while still meeting their Qualit y of Service (QoS) constraints