title: Java EE 6 Design Patterns
body: <p>I would like to know about the design patterns that can be applied in Java EE 6 implementation. </p>
  
  <ul>
  <li>MVC.</li>
  <li>GOF.</li>
  <li>DAO</li>
  <li>Persistent relational mapping</li>
  <li>Pooling</li>
  <li>CEC</li>
  <li>Entity control boundary (ECB)</li>
  <li>and many others </li>
  </ul>
  
  <p>Do JPA eliminate the use of DAO?<br>
  Please provide other patterns that can be learned. </p>