title: Data Element Type(DET) in Function Point Analysis?
body: <p>I am studying function point analysis from <code>Alvin Alexander's</code> website.
  <a href="http://alvinalexander.com/FunctionPoints/" rel="nofollow">http://alvinalexander.com/FunctionPoints/</a>
  In his example, he is calculating DETs from GUI screen but I cannot understand how he is counting. For example according to him at
  <a href="http://alvinalexander.com/FunctionPoints/node26.shtml" rel="nofollow">http://alvinalexander.com/FunctionPoints/node26.shtml</a> (end of page) <code>DET</code> of <code>Create Project</code> is five while there are only three input fields. Same is with other Screens. Can anyone help me? I'm stuck here.</p>