The web service broker uses web protocols and XML. We can use this pattern to expose and broker the services. Assume a circumstance, where multiple organizations are lined up in order to request info from a number of service providers. A broker provides the central medium which makes the transfer of information happen. It is a general gateway or an address in order for the client apps to be able to access a large, diverse variety of services. These services might need a broker in order to make an interaction with either only a single server app or multiple server
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