Abstract: Web services technology is the best practice of Software as a Service (SaaS),and it also is the key to solve inter-organizational business integration．However,Web service organizations are scattered on the Internet,and they are not easily organized and managed．Service Network (SN) is a management platform for Web service organization,management and utilization throughout the life cycle of Web services． The main idea is that taking advantage for semantic Web and social networking technology explicitly indentifies and mines semantic association and interaction between Web service (referred to as service relation,SR),to organize available Web service on the Internet into a service ecosystem．The SN Prototype System consists of several modules,such as services collecting,service annotation,service relationship mining,service discovery,service composition and so on．By organizing available Web services into SN with rich semantic information,business context and interactions,it is firmly believed to be a new infrastructure for Services-oriented computing,and it will also be helpful to improve and enhance the degree of automation and efficiency of Web service composition to meet the needs of more complex requirements.

Key words: Service relation,Services network,Relation mining,Services-oriented computing,Web services