期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2013
卷号：4
期号：10-3
出版社：Seventh Sense Research Group
摘要：A web service is a technique of communication over the World Wide Web. It is a service that is always on as in the concept of utility computing. Web Service can publish its function or message to the rest of the world. It is collected by combine of individual services to constitute complex business processes. On the World Wide Web, the number of web services provider increases, the more web services exist having same functionality. Hence, the work of web service discovery becomes difficult and challengeable. The solution to this, the broker is to implement for compose web services according to security constraints and selecting the best web services to execute a business process.
关键词：Broker; Service Composition; web services; QoS
