<prompt> Translate the following text to SwahiliSome processes were formal, incorporating design reviews at specific design milestones such as at 15, 30, and 60 percent of design completion.  <response>: Mchakato wa majaribio ya kubuni ulijumuisha ukaguzi wa muundo katika hatua maalum za muundo kama vile asilimia 15, 30 na 60 ya kukamilika kwa muundo. 