<prompt> Translate the following text to EnglishVifungu vya mwongozo huu wa ukaguzi vinazingatia hatua tofauti za mchakato wa ununuzi, kama ilivyoelezwa kwenye ukurasa wa 10 wa mfano wa ununuzi wa GAO.  <response>: The chapters of this audit guide focus on logically distinct steps of the acquisition process, as described on page 10 of GAOs acquisition model. 