Chapter 4. Web Services for Synchronous Integration

Web Services Technology Overview

There are a number of ways to describe Web services, but for the purpose of using a standard definition this book uses the W3C definition of a Web service:

A Web service is a software system designed to support interoperable machine-to-machine interaction over a network. It has an interface described in a machine-processable format (specifically WSDL, discussed later). Other systems interact with the Web service in a manner prescribed by its description using SOAP messages, typically conveyed using HTTP with an XML serialization in conjunction with other Web-related standards.

In a typical Web services scenario, a business application that could be a Web service ...

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