Service-level agreement-based QoS analysis for web services discovery and composition

Stephen J.H. Yang, Jia Zhang, Blue C.W. Lan
2007 International Journal of Internet and Enterprise Management  
Quality-of-Service (QoS) in Web services considers a service's nonfunctional characteristics during service specification, discovery, and composition. In order to encourage the development of QoS-aware Web services, we first develop a QoS-aware model, which contains a common set of QoS attributes including response time, throughput, reliability, availability and price etc. Then, based on the attributes, two alternative service selection methods, namely absolute and relative matchmaking, are
more » ... ented. Finally, according to the formal semantics of different workflow patterns, we utilize the aggregative effects of QoS attributes to help service consumers perform QoS-aware service composition. . He was the co-founders and the CEO of T5 Corp, a company providing XML-based Web services. Dr. Yang has published 2 books and over 100 technical papers in the areas of software engineering and knowledge engineering. He severed as the Program Co-Chairs of IEEE MSE2003 and CAUL2006. His research interests include software engineering, knowledge engineering, semantic Web, context aware ubiquitous computing, peer to peer computing, and mobile multimedia.
doi:10.1504/ijiem.2007.011590 fatcat:zchj6svq5jgudkahreyngj2kva