by the formal argument.</p>
    <p>
        Suppose a remote procedure called <em>sum</em> that defines three formal arguments called
        <code>a</code>, <code>b</code> and <code>c</code>.
        Suppose further that <code>a</code> comes first in the argument list, <code>b</code> second and <code>c</code>
        third. The following example shows how this procedure would be called using named parameters in an HTTP POST transaction (the
        headers have been omitted from all examples in this sectio