Isistimu yokuhlola yenzwa ekude ephathwayo ihlanganisa umthombo wokukhanya kanye neyunithi yokuhlaziya, iyunithi ebonisa i-engeli engakwesokudla, isistimu yokutholwa kwesivinini/ukusheshisa, isistimu yokuhlonza imoto, isistimu yokudlulisa idatha, isistimu yesimo sezulu kanye neyunithi yokusebenza, engaba kulawulwa ukude ngenethiwekhi.