From http://www.w3schools.com (Copyright Refsnes Data)

Web Services Platform Elements

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Web Services have three basic platform elements: SOAP, WSDL and UDDI.


What is SOAP?

SOAP is a simple XML-based protocol to let applications exchange information over HTTP.

Or more simple: SOAP is a protocol for accessing a Web Service.

Read more about SOAP on our Home page.


What is WSDL?

WSDL is an XML-based language for describing Web services and how to access them.

Read more about WSDL on our Home page.


What is UDDI?

UDDI is a directory service where businesses can register and search for Web services.

Read more about UDDI on our Home page.


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From http://www.w3schools.com (Copyright Refsnes Data)