Ibikoresho bya dodical byashyizwe kubikoresho bya saloque mugutega amabuye ni ikintu cyingenzi cyemeza neza kandi neza. Igishushanyo cyacyo kidasanzwe kigabanya urusaku no kunyeganyega, kuzamura imikorere muri rusange. Ibikoresho byashizweho byubuyobozi bwashingwa neza byorohereza gusezerana, gutanga ubushobozi bukomeye bwo gutwara. Bikwiranye n'ibikoresho bitandukanye byo guterura, byemeza kwizerwa no kuramba, bikaba ari igice cyingenzi cyimashini zigezweho.
Ibigo icumi byambere mu Bushinwa, Yahawe abakozi 1200, yabonye imirongo 31 yose hamwe na patenti 9. Ibikoresho byo gukora ibikoresho byo gufata, ibikoresho byo kuvura ibikoresho, ibikoresho byubugenzuzi.