Basic UDDI
Like many other Web services protocols, UDDI is a layer on top of SOAP, as shown in Figure 9.1.
Figure 9.1. UDDI uses SOAP, XML, and lower-level Internet protocols.
Just like the phone book, UDDI has two main users: clients and publishers. A publisher is a company that offers Web services—in the phone book analogy, it's someone who publishes his or her number in the book. A client is someone who is searching for a Web service—the person thumbing through the phone book. Figure 9.2 shows the high-level view of the UDDI world.
Figure 9.2. Clients, publishers, and UDDI registries make up the UDDI world.
In many ways, UDDI is also like the ...
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