SOAP and Web services have been described as the ultimate "any-to-any" protocol for intermachine and interprocess communication. Most developers respond with a "Yeah, but . . .". There are different SOAP styles, and you need to know which style will work with your project. Also, there are some differences in how different SOAP styles are used. What changes with each of these different styles is the format of the message. Nothing else is different. In this article you will see how to work with Document and RPC styles in SOAP.