title: Meaning of Cognos property Use for Parameter Info
body: <p>I am trying to understand the property 'Use for Parameter Info' in cognos report studio. At this link: <a href="http://www-01.ibm.com/support/docview.wss?uid=swg21341901" rel="nofollow">http://www-01.ibm.com/support/docview.wss?uid=swg21341901</a> 
  What is meant by <code>'set to Yes are checked for parameter information first'</code>  </p>
  
  <p>Does it mean it will check if the parameter value(s) is supplied? But that it will anyway check for all mandatory parameter(s). We have seen some performance improvement by setting this property to 'No'. Why setting it to 'No' improves performance?</p>