Ikoreshwa cyane muburyo bwo kuvura hejuru (aribyo gushyushya, gukuramo ingese, gusiga irangi no kumisha) byuma byuma hamwe nibice bitandukanye byubatswe, kimwe no gusukura no kunagura ibice byubaka ibyuma.
Isohora itangazamakuru ryangiza / ibyuma hejuru yicyuma hejuru yibikorwa byimbaraga zumuyaga.Nyuma yo guturika, hejuru yicyuma hazagaragara urumuri rumwe, ruzamura imyambarire yo gushushanya.