IEC 61158 series mapped on
WSDL

General desciption of WSDL:

From https://en.wikipedia.org/wiki/Web_Services_Description_Language: The Web Services Description Language (WSDL) is an XML-based interface description language that is used for describing the functionality offered by a web service. The acronym is also used for any specific WSDL description of a web service (also referred to as a WSDL file), which provides a machine-readable description of how the service can be called, what parameters it expects, and what data structures it returns. Therefore, its purpose is roughly similar to that of a type signature in a programming language

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