title: What are WSDL, SOAP and REST?
body: <p>What is <a href="https://www.w3.org/TR/wsdl" rel="noreferrer">WSDL</a>? How is it related to <a href="https://www.w3.org/TR/soap12" rel="noreferrer">SOAP</a>? Where does <a href="https://www.rfc-editor.org/rfc/rfc6690" rel="noreferrer">REST</a> fit in all of that?</p>