event such that when it is changed by a callback (or from the command-line) it
        notifies other interface components of the change. Each interface component (or group thereof) can
    just listen for the events that affect it.</li>
            </ul>
            <p>Advice on how to build large-scale applications is beyond the scope
                of this document. If you need help in this area, please contact your MathWorks
            account manager who will be able to put you in touch with a techni