The abstract interface definition provides a generic description of the web services interface. The definition is derived from the following elements:
- An interface element interacts with a web service, which is a collection of web services operations.
- An operation element represents a web service function that needs to interact with multiple input and output messages.
- A message element represents a unit of data that is exchanged in an operation and is represented by the part child element.
- A type element specifies the data types used in a message.
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