Ikiranga 1:Gariyamoshi iranyerera hamwe na bisi iranyerera ihura hagati yayo binyuze mumipira, bityo kunyeganyega ni bito, bikwiranye nibikoresho bisabwa neza.
Ikiranga 2:Kuberako ingingo-y-itumanaho ihuza, kurwanya ubukana ni bito cyane, kandi kugenda neza birashobora gukorwa kugirango ugere ku buryo bunoze bwo kugenzura ibikoresho, n'ibindi.