New Generation Computing, 22(2004)221-238
Ohmsha, Ltd. and Springer-Verlag

Q-WSL: A Quick Web Services Lookup Model Based on Hierarchical Registration

Shan XIE
Information Science and Technology College, DongHua University
P.O. Box 339, 1882 West Yan'nan Road, Shanghai, P.R.C.
xieshan@mail.dhu.edu.cn
Jiaxun CHEN
Network and Database Research Institute
Information Science and Technology College, DongHua University
P.O. Box 339, 1882 West Yan'fan Road, Shanghai, P.R.C.
jxcn@dhu.edu.cn

Received 29 July 2002
Revised manuscript received 5 March 2003

Abstract

Q-WSL is a new model to registration and lookup of complex services in the Internet. The model is designed to quickly find complex Web services by using hierarchical registration method. This paper starts by presenting the basic architecture of Web services system and then describing the method of hierarchical registration of services. In particular, the paper concentrates on service query document description and service lookup procedure and addresses how to lookup these services which are registered in the Web services system. Furthermore, the paper presents an example design and an evaluation of its performance. Specifically, we show that the using of attribution-based service query document design and content-based hierarchical registration in Q-WSL allows service requesters to discover needed services more flexibly and rapidly. It is confirmed that Q-WSL is very suitable for Web services system.

Keywords:Web Services, Service Registration, Service Lookup, UDDI, DAML, WSDL.

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