title: How to create the "Use-Case" Diagram by means of EMF
body: <p>simple question.</p>
  
  <p>Why Eclipse Modelling Framework doesn't support Use-Case diagram ?</p>
  
  <p>There are many diagrams, but no use-case:</p>
  
  <p><a href="https://i.stack.imgur.com/dQLzv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dQLzv.png" alt="enter image description here"></a></p>
  
  <p>also, i study the tutorial at <a href="http://www.vogella.com/tutorials/EclipseEMF/article.html" rel="nofollow noreferrer">Eclipse Modeling Framework (EMF) - Tutorial</a> and just created a "Ecore Modelling Project". I was not able to create any "Use-case" diagram.</p>
  
  <p>thanks for reply</p>