Fundamentals
Fundamentals
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    Web Service Description Language (WSDL)

    Web Service Description Language (WSDL) is a language to describe SOAP Web Service. A WSDL defines a number of things:

    • A list of types (see XSD) that describe the XML Elements that can be used.
    • A list of interfaces that describe:
      • The XML Element that should be used for a Fault
      • The Operations that that interface implements, where each Operation has a:
        • input, which references the XML Element that is used for sending messages to the service for that operation,
        • output, which references the XML Element that is used for when the service responds
    • A list of bindings, which describes another layer of abstraction over Operations, and what Interface implements it. (This is where things are getting vague).
    • A service that has multiple endpoints, that link to a specific binding.

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