w_to_contact_us">How to Contact Us</a>
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  <li data-type="sect1">
    <a href="pr01.html#_acknowledgments">Acknowledgments</a>
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</ol>
      </li>
</ol>
      </li>
  <li data-type="part">
    <a href="part1.html">Thesis</a>
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</ol>
      </li>
  <li data-type="chapter">
    <a href="ch01.html">What Is Software Engineering?</a>
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  <li data-type="sect1">
    <a href="ch01.html#time_and_change">Time and Change</a>
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