title: How to determine UFC of an address book program
body: <p>I am trying to find the Unadjusted function count(UFC) for an address book program. According to the research I conducted on the internet, I found out that I need to measure the following: </p>
  
  <ol>
  <li>External inputs.  </li>
  <li>External outputs.  </li>
  <li>External inquiries.  </li>
  <li>External files.  </li>
  <li>Internal files.</li>
  </ol>
  
  <p>My question is, how to find the above measures of the address book program.    </p>