High level API vs. low level API?
What is the difference between high level API and low level API?

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A high-level API allows the developer to work with WSDL. A WSDL compiler generates all of your SOAP interfaces, so as a programmer all you need to do is invoke methods on objects, and you never need to diretly manipulate the SOAP structures (the envelope, header, and body). A low-level API allows the developer to work directly with the SOAP structures. Rather than invoking methods on objects, you need to construct SOAP messages and call them.

This was first published in February 2002

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