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Web Services
A web service is a way for two machines to communicate over a network. Different software systems often need to exchange data with each other, and a web service provides a standard way of doing so over the internet.This section covers the following technologies used to describe, exchange, and call web services:
- WSDL - the Web Services Description Language, used to describe the operations a web service offers.
- SOAP - the Simple Object Access Protocol, used to exchange structured information between web services.
- REST - Representational State Transfer, an architectural style for web services built on standards such as HTTP and URI.
- XML-RPC - a protocol that encodes remote procedure calls in XML and transports them over HTTP.