A lot of attention has been given to network quality of service and efforts to make layers on top of the network also QoS-aware increase noticeably. This paper explores QoS-aware service provisioning at a level close to end-user’s perception. It shows how end-user oriented QoS requirements have been elaborated in a high level design onto QoS support of a distributed service platform and how rea...

Applications of ad hoc networks are increasing in recent years because of their ease of deployment. Mobile ad hoc networks multimedia applications require an efficient and effective quality of service-aware multicast routing scheme. Supporting quality of service in an ad hoc environment is a major challenge due to unpredictable and rapidly changing topology. In this article a novel cluster-base...

Nowadays, service compositions are increasingly used to execute business processes. During the execution of a service composition, a service failure leads to a necessary re-planning. Due to such runtime events, the ex-post realized Quality of Service (QoS) values and thus the realized utility of an executed service composition may be significantly lower than the ex-ante computed one. The presen...

Extensive use of web services has lead to introduce web service compositions to execute business workflows. Since several function equivalent services, provided by different service providers, may be available in the Web, the problem of selection of web service compositions arises. QoS aware selection means considering the quality of the service composition in choosing constituent services. So ...

Modern networks provide a QoS (quality of service) model to go beyond best-effort services, but current QoS models are oriented towards low-level network parameters (e.g., bandwidth, latency, jitter). Application developers, on the other hand, are interested in quality models that are meaningful to the end-user and therefore struggle to bridge the gap between network and application QoS models....