?url_ver=Z39.88-2004&rft_id=10.1109%2FICIMTR.2012.6236428&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=H.O.&rft.au=Ali%2C+H.O.&rft.aulast=Ali&rft.title=Identifying+challenges+of+change+impact+analysis+for+software+projects&rft.isbn=9781467306553&rft.date=2012&rft.genre=proceeding