II. Moving forward: Technical trends
A web service is a software system designed to support interoperable machine-to-machine interaction over a network
It has an interface described in a machine-processable format (specifically WSDL)
Other systems interact with the Web service in a manner prescribed by its description using SOAP messages
These are typically conveyed using HTTP with an XML serialization in conjunction with other Web-related standards
W3C. (2004). Web Services Architecture.
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