title: What is the difference between XSD and WSDL?
body: <p>What is the difference between an <code>XML Schema</code> and <code>WSDL</code>?</p>
  
  <p>The difference I noticed is that <code>WSDL</code> contains <code>XSD</code> and in <code>WSDL</code> we can declare operations, but not in <code>XSD</code>. Is that correct?</p>