Extensible management framework for Web service QoS

Web service is emerging as a promising technology and attracts many attentions from industry and research domains. With the popularity of service technology, many researchers propose that not only functional but also non-functional properties, also known as quality of service (QoS), should be taken into consideration. Researches have intensively explored many QoS related problems, such as QoS-aware dynamic service selection and composition, etc. However, existing approaches emphasize on how to make use of QoS information, the technologies on collecting, storing, measuring Web service QoS information are not intensively explored. It's obvious that these fundamental technologies are also very important for successfully building QoS related applications. To address this problem, this paper proposes an extensible QoS information management framework, analyzes the technologies included in this framework, and presents the design decisions and solutions in Software Component Library Project of Peking University. Finally, this paper describes a real case study of applying this management framework in a project of 863 Program. The case study shows that users can extend the management framework and manage Web Service QoS according to their domain-specific requirements, which evaluates the extensibility and practicability of this QoS information management framework.EI081458-14703