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Information Systems Management

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Explain the concept of Web Services. How will they effect businesses in the future? Identify several possible uses for web services not discussed in the assigned reading. What is a Service-Oriented Architecture (SOA)? How is SOA an improvement on older architectures? Explain how SOA relates to web services.

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Solution Summary

This response explains the concept of Web Services, Service-Oriented Architecture and their impact on businesses.

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The term Web services describes a standardized way of integrating Web-based applications using the XML, SOAP, WSDL and UDDI open standards over an Internet protocol backbone. XML is used to tag the data, SOAP is used to transfer the data, WSDL is used for describing the services available and UDDI is used for listing what services are available. Used primarily as a means for businesses to communicate with each other and with clients, Web services allow organizations to communicate data without intimate knowledge of each other's IT systems behind the firewall.
Unlike traditional client/server models, such as a Web server/Web page system, Web services do not provide the user with a GUI. Web services instead share business logic, data and processes through a programmatic interface across a network - the applications interface, not the users. Developers can then add the Web service to a GUI (such as a Web page or an executable program) to offer specific functionality to users.

Web services allow different applications from different sources to communicate with each other without time-consuming custom coding, and because all communication is in XML, Web services are not tied to any one operating system or programming language. For example, Java can talk with Perl, Windows applications can talk with UNIX applications.

In short, Web services will affect business of the ...

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