How is the binding

A binding binds the abstract model into an application and transport protocol: HTTP GET/POST, SOAP 1.2 over HTTP, …

<binding name="ValidatorHttpGet"
    interface="val:ValidatorInterface">
    <operation name="getResult">
      <property
        uri='http://www.w3.org/2003/04/http/Method'>
        <value>GET</value>
      </property>
      <http:operation location="/getResult" />
      <input/>
      <output/>
    </operation>
</binding>