| In this chapter, you learned about Web services and their architectural components. You learned about the structure and composition of SOAP messages and WSDL documents, and how these XML documents help in doing RPCs and other B2B communication over the Internet. You learned about the UDDI registry specification and how it helps in the publishing and discovery of Web services. You also learned about how JAX helps in creating and using Web services. This information will come in handy whenever you want to create and deploy Web services. |