To accommodate applications with highly variable degrees and categories of Quality of Service (QoS) requirements, a major effort has been invested to overcome the traditional best-effort service quality of the Internet [1],[2]. Nevertheless, there has been a shift towards weak QoSassurance paradigms based on the differentiation of different QoS levels [3]. What is currently missing is a techniq...

Currently, the interface description languages in component and web service infrastructures provide support for the description of functional properties, and structures such as deployment descriptors configure some specific non-functional aspects (e.g. persistence, security, transactions). But the infrastructures do not provide support for the description and management of general QoS (e.g. lat...

Popularity of the Internet and the availability of broadband links to residential consumers have initiated a demand for high quality video streaming. Efficient Quality of Service of video streaming depends on bandwidth, delay, and loss requirements due to its real-time nature. However, the current best-effort Internet does not offer any quality of service (QoS) guarantees to streaming video ove...

Quality of service (QOS) of a choreography is dependent on the quality of service of participating roles. Recently, a proposal has been made to extend the meta model of WSDL to include QOS parameters. These parameters include reliability, availability and demand. In this paper we propose a multidimensional model of quality of service of a choreography based on above proposed extensions. Our pro...

With the unprecedented and dramatic development of Web services in recent years, designing novel approaches for efficient Web service prediction has become of paramount importance. Quality of Service (QoS) plays a critical role in Web service recommendation. However determining QoS values of Web services is still a challenging task. For example, some QoS properties (e.g., response time, through...

The successful integration of the Service Oriented Architecture (SOA) in large distributed environments greatly depends on their support of quality of service (QoS) management. The aim of QoS management is to guarantee diverse QoS levels to users issuing requests from a variety of platforms and underlying networks. In this paper, we present our policy-based framework for QoS management in SOA e...

Quality of Service (QoS) in distributed systems supporting real-time and multimedia applications must be guaranteed system-wide, including end-systems, communications systems and networks. This paper concentrates primarily on the transport layer of such a system but also describes a generalised Quality of Service Architecture (QoS-A) used to specify and implement application defined QoS over al...

In classical circuit switching networks Quality of Service is an essential aspect which in uence the entire network design process, including routing consideration. Due to the e orts to introduce Quality of Service (QoS) into IP-based networks, design routing to support QoS becomes increasingly important, e.g. in such concepts like integrated service and di erentiated service IP networks. In th...