Classification and Comparison of QoS Specification Languages for Distributed Multimedia Applications

Quality of Service (QoS) is becoming an integral part of currently ubiquitous distributed multimedia applications. However, before any QoS-related mechanisms and policies, such as admission control, resource reservation, enforcement, and adaptation, can be invoked, applications need to express their QoS requirements. A considerable amount of research has been done in QoS-aware Application Programming Interface (API) design and QoS specification language development for multimedia systems.