Why SOAP Envelope ? What is XML-RPC?

SOAP Envelope

<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingStyle="http://www.w3.org/2001/12/soap-encoding">
<soap:Header>
</soap:Header>

<soap:Body>
                <soap:Fault>

                </soap:Fault>
</soap:Body>
</soap:Envelope>

	What is XML-RPC?
	XML-RPC is a protocol that uses XML messages to perform Remote Procedure Calls. Requests are encoded in XML and sent via HTTP POST; XML responses are embedded in the body of the HTTP response.