title: UML representation of PHP trait
body: <p>I'm creating projects with Symfony2/Doctrine and try to implement traits.
  So far no problem on small tryouts, but I usually do UML class and sequence diagrams before deep in complex projects.</p>
  
  <p>What is the UML design object(s) to be used to symbolize PHP traits, which can be seen as far as I know as behaviors? Is ther any clean way to do so?</p>
  
  <p>Thanks a lot for your answers !</p>
  
  <p>Nicolas</p>