title: What is the difference between 'class diagrams' and 'data models' in UML?
body: <p>I have homework and I'm supposed to draw a class diagram AND data model. I wrote the class diagram. I don't know what to do about the data model. <strong>What are the differences?</strong></p>
  
  <p>According to texts on the Internet they seems to me, ie: class diagrams and data models are the same thing. </p>
  
  <p><em>What is the difference between <code>class diagrams</code> and <code>data models</code>.</em></p>