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      <title>Create requirement check overview</title>
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      <div class="title_topic3" id="xps10_pagetitle">Create requirement check overview</div>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('check_req/user_req_ov.html');return(false);">Overview</a></p>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('check_req/req_user_req_list_ht.html');return(false);">How To </a></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('check_req/validation_op.html');return(false);">Options</a></p>
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      </table><br><p class="para_topic">Once you have imported some requirements into NX or created some user requirements in NX, you can use them to validate design data by connecting them to expressions. For each requirement, you create an expression that, when evaluated, produces the value that corresponds to the requirement. For example, if there is a requirement for the radius of a cylindrical part, the expression should capture that dimension, perhaps using a measurement.</p>
      <p class="para_topic">You can build such a connection in the <b class="uiTerm">Check Requirements</b> dialog box, <b class="uiTerm">Expressions</b> dialog box, or any of the measurement dialog boxes
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                  <p class="para_note_body"> For more on expressions, see <b class="uiTerm"><a class="links" href="javascript:void(0)" onclick="top.popUpPage('modeling/index.html?goto=modeling/exp_ov.html&vars=-aux,-home','linkInter','menubar=yes,status=yes,resizable=yes,toolbar=yes,scrollbars=yes,location=no,directories=no');return(false);">Expressions Editor</a></b> in the Modeling Help.
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      <div class="title_division">Where do I find it?</div>
      <p class="para_division">Choose <b class="uiTerm">Analysis&rarr; Check Requirements</b>.
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