title: Find and later delete zombie informatica objects
body: <p>Is there a easy way to identify and clean unused informatica artifacts? </p>
  
  <p>Context: In one of the projects, there are lot of zombie sessions / mappings etc, the creators have long gone. </p>
  
  <p><strong>I want to do the following:</strong></p>
  
  <ol>
  <li>List/Delete all sessions that are not associated with a workflow. </li>
  <li>List/Delete all mappings that are not used in any session/wf. </li>
  <li>List/Delete all source/target that were not used in any mapping.</li>
  <li>List/Delete all workflows that were not run in the past one year.</li>
  </ol>
  
  <p>Someone mentioned about using : Designer > Tools > Queries . I can't express the above 1/2/3/4 with the option given, can anyone shed some light?</p>
  
  <p><strong>Note:</strong></p>
  
  <ul>
  <li>I’m not looking for click one by one and find dependencies. </li>
  <li>I’m not looking for download the whole plant as xml and search dependencies
  one by one</li>
  </ul>