<prompt> Translate the following text to EnglishKwa hiyo, makampuni ya kibiashara hujitahidi kuimarisha muundo mapema iwezekanavyo katika mchakato wakati ni kwa kiasi kikubwa nafuu kufanya mabadiliko.  <response>: Therefore, commercial companies strive to firm the design as early in the process as possible when it is significantly cheaper to make changes. 