Diagrams symbols in UML , OOAD : <p>I have seen many symbols, notations related to UML and OOA&amp;D. Most of the times those symbols don't have any labels so I am not able to understand what they are. For example, we have symbol for <code>Generalization</code> , <code>Realization</code>, <code>Uses</code> etc.</p>

<p>Is there any book , resource which depicts commonly used symbols and their meaning?</p>
