2013/06/24 by Yong Wang, Wang, Yong
Computer Science · #Distributed #FOS: Computer and information sciences #Parallel #Software Engineering (cs.SE) #and Cluster Computing (cs.DC) #cs.DC #cs.SE
paper · pdf · doi:10.48550/arxiv.1306.5530
arxiv created 2013/12/03 · arxiv updated 2013/12/04
QoS-aware applications can satisfy not only the functional requirements of the customers, but also the QoS requirements. QoS-aware Web Service orchestration translates the QoS requirements of the customers into those of its component Web Services. In a system viewpoint, we discuss issues on QoS-aware Web Service orchestration and design a typical QoS-aware Web Service orchestration engine called QoS-WSOE. More importantly, we establish a formal model of QoS-WSOE based on actor systems theory. Within the formal model, we use a three-layered pyramidal structure to capture the requirements of the customers with a concept named QoS-Aware WSO Service, characteristics of QoS-WSOE with a concept named QoS-Aware WSO System, and structures and behaviors of QoS-WSOE with a concept named QoS-Aware WSO Behavior. Conclusions showing that a system with QoS-Aware WSO Behavior is a QoS-Aware WSO System and further can provide QoS-Aware WSO Service are drawn.