About SAP Web Services

 Web services are a standard way of creating a self-describing service
 based on XML that uses the internet to communicate. A service is a
 program that talks to other programs. The self-describing part of
 web services is the Web Services Description Language (WSDL).
 Every web service has a WSDL file that describes its interface.
 This WSDL file, which is expressed in XML, can be used to generate a
 program automatically to invoke a web service and get information
 from it. While communicating with a service can be automated,
 more study is required to understand the information properly.

 The Universal Description, Discovery, and Integration (UDDI) protocol
 is a standard for creating a searchable directory of WSDL files so
 that web services can be located and the WSDL files obtained.
 You can use UDDI when you are designing or running a program.
 Web services frequently use the SOAP standard for transferring data
 back and forth, although it is possible to communicate in other
 ways as well. OASIS and the W3C, two technology standards bodies,
 are primarily responsible for the architecture and standardization
 of web services.
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