Understanding Web Services Standards Stack
As it must be clear by now, Web services are built on top of the development of a number of standards. Figure 9.7 shows one view of the various standards stack around the development and deployment of Web services. TCP/IP is the basic foundation of the Internet, which uses HTTP/HTTPS as ubiquitous communication protocols. With the definition of Extensible Markup Language (XML), a ubiquitous markup language has been created to describe and tag data. XML Schemas have recently surfaced as a rich alternative mechanism to DTDs, to define XML data about data (metadata). SOAP is the first standards entry into the world of Web services. It defines a communication protocol using XML messages so that disparate ...
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