title: Relationships on attribute level in Enterprise Architect
body: <p>I am looking for the best solution to draw mapping diagram in EA. I find that composite structure diagram might suits my needs. I have even found good example of such diagram on the net:</p>
  
  <p><a href="https://i.stack.imgur.com/GiTh7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GiTh7.jpg" alt="Original source: http://www.dthomas.co.uk/dtalm/images/eshot/test/data_map.JPG"></a>
  (Original source: <a href="http://www.dthomas.co.uk/dtalm/images/eshot/test/data_map.JPG" rel="nofollow noreferrer">http://www.dthomas.co.uk/dtalm/images/eshot/test/data_map.JPG</a>)</p>
  
  <p>This diagram was fully created in EA (as author claims). However I am not able to attach 'represents' relation to the attribute. Does any one know how to do that (I am talking about those little open squares in class representations).</p>
  
  <p>Thank you in advance for your answer.</p>