▁The ▁purpose ▁here ▁is ▁to ▁properly ▁move , ▁archive , ▁disc ard , ▁or ▁destroy ▁information , ▁hardware , ▁and ▁software ▁that ▁is ▁being ▁replaced , ▁in ▁a ▁manner ▁that ▁prevents ▁any ▁possibility ▁of ▁una ut hor ized ▁dis closure ▁of ▁sensitive ▁data . ▁The ▁dispos al ▁activities ▁ensure ▁proper ▁migration ▁to ▁a ▁new ▁system . ▁Part icular ▁emphas is ▁is ▁given ▁to ▁proper ▁pres ervation ▁and ▁arch iving ▁of ▁data ▁processed ▁by ▁the ▁previous ▁system . ▁All ▁of ▁this ▁should ▁be ▁done ▁in ▁accord ance ▁with ▁the ▁organization ' s ▁security ▁requirements . ▁ ▁In ▁the ▁following ▁diagram , ▁these ▁stages ▁of ▁the ▁systems ▁development ▁life ▁cycle ▁are ▁divided ▁in ▁ten ▁steps , ▁from ▁definition ▁to ▁creation ▁and ▁modification ▁of ▁IT ▁work ▁products : ▁ ▁Not ▁every ▁project ▁will ▁require ▁that ▁the ▁phases ▁be ▁sequ entially ▁executed . ▁However , ▁the ▁phases ▁are ▁inter dependent . ▁Depending ▁upon ▁the ▁size ▁and ▁complexity ▁of ▁the ▁project , ▁phases ▁may ▁be ▁combined ▁or ▁may ▁overlap . ▁ ▁System ▁investigation ▁▁ ▁First ▁the ▁IT ▁system ▁proposal ▁is ▁investig ated . ▁During ▁this ▁step , ▁consider ▁all ▁current ▁prior ities ▁that ▁would ▁be ▁affected ▁and ▁how ▁they ▁should ▁be ▁handled . ▁Before ▁any ▁system ▁planning ▁is ▁done , ▁a ▁feas ibility ▁study ▁should ▁be ▁conducted ▁to ▁determine ▁if ▁creating ▁a ▁new ▁or ▁improved ▁system ▁is ▁a ▁vi able ▁solution . ▁This ▁will ▁help ▁to ▁determine ▁the ▁costs , ▁benefits , ▁resource ▁requirements , ▁and ▁specific ▁user ▁needs ▁required ▁for ▁completion . ▁The ▁development ▁process ▁can ▁only