title: How do I make a DOORS DXL attribute based on the value of another attribute?
body: <p>X and Requirement are existing attributes.</p>
  
  <p>I want to create an attribute Z such that, for the given object, 
  if Requirement=True, then Z={the value of attribute X},
  but if Requirement=False, then Z={Object Heading and Object Text}.</p>
  
  <p>What is the DXL for making this attribute?
  Thanks.</p>