Hano hari ubwoko bubiri bwimashini: gusudira nicyitegererezo.Iyambere ni ntoya nini yo hagati, naho iyanyuma ni nini.Ubwoko bwo gusudira bukoresha arc nini yuzuye hamwe nuburyo bwo gusudira buke, bigabanya cyane guhangayikishwa no gutuma imbaraga zingana zingana mubyerekezo byose, kurwanya ingaruka zikomeye, ndetse n'imbaraga, igipimo gito cyo gutsindwa.Igiterane gikoresha modulisiyoneri igezweho hamwe no kudasudira kumiterere yimiterere yimiterere yumunaniro mwinshi kandi wizewe cyane.Hagati aho igishushanyo mbonera cyimashini zituma ubwikorezi, no kuyishyiraho byoroha, cyane cyane bikwiriye gushyirwaho ahantu hafunganye kandi hato nko gucukura no gucukura ubutumburuke.