title: UML - list of childs on parent vs. parent attribute on child
body: <p>how can I tell from class diagrams if a 1-to-N relationship implies a point to the parent on each child or a list of childs on the parent? Or both?</p>
  
  <p>For example. If there is a client and a client has orders, is there anyway to tell from the UML class diagram what of the following implementations would be the case?</p>
  
  <pre><code>class Client {
      array orders;
  }
  
  class Order {}
  </code></pre>
  
  <p>or</p>
  
  <pre><code>class Client {}
  class Order { 
     client parent; 
  }
  </code></pre>