Stage 1 is necessary to help ensure that quality standards can be achieved during operation Stage 2 is necessary to help ensure that design or intended specifications are achieved.
Hatua ya 1 ni muhimu ili kusaidia kuhakikisha kwamba viwango vya ubora inaweza kupatikana wakati wa operesheni Hatua ya 2 ni muhimu ili kusaidia kuhakikisha kwamba kubuni au lengo specifikationer ni mafanikio.