title: Is it possible to join 2 controller classes to 1 boundary class?
body: <p>I'm doing a college project where I'm required to create a class diagram to a school registration system. There I have included a <code>Student</code> class, a <code>registrationUI</code> Boundary Class and a <code>registrationController</code> controller class:</p>
  
  <p><a href="https://i.stack.imgur.com/W6Y5I.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W6Y5I.jpg" alt="enter image description here"></a></p>
  
  <p>I have created a separate controller class called <code>systemController</code> to do the other tasks such as calculate bill, etc...</p>
  
  <p>I'm asking if it's possible to join the <code>systemController</code> class with the <code>registrationUI</code> class.</p>