Summary

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Web services might very likely be the key to unlocking the potential of the Internet as a primary means of interbusiness communication. With Web services, disparate systems can communicate and exchange data in a useful manner. Web services leverage their power by working on a set of common Internet standards, such as HTTP, XML, and SOAP. The use of common standards enables communication and interaction between a variety of systems, regardless of their operating systems, applications, or languages.

In this chapter you learned

• What Web services are

• How to build simple Web services

• How to build complex input/output Web service

• How to consume Web services

You built both simple and complex Web services. Using the WSDL.exe utility, you built a proxy client class. The proxy client class enabled programmatic access to the Web service's exposed methods from a consumer application in the same way that you would access methods of any class local to the application.

Web services can be used for a variety of applications. You can build Web services to expose data to consumers, or to exchange data, perform critical business functions, or automate business processes. You are limited only by your imagination .

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