Gupfa gushushanya ni uburyo bwo gukora bukoreshwa mu gukora ibyuma mubice byinshi kandi byuzuye kandi byuzuye.Ubu buryo bukubiyemo guhatira icyuma gishongeshejwe munsi yumuvuduko mwinshi mu cyuho kibumbabumbwe, gikozwe mu byuma bibiri bikomye bipfa.Icyuma gishongeshejwe cyinjizwa mu cyuho ku muvuduko mwinshi hanyuma kigakonja vuba, bigatuma icyuma gikomera kandi kigafata imiterere.Icyuma kimaze gukomera, ifumbire irakingurwa, kandi igice gishya cyicyuma kivanwa mubibumbano.Uburyo bwo gupfunyika bipfa gukoreshwa muburyo bwo gukora ibice byimodoka, ibikoresho, nibindi bicuruzwa bitandukanye.Ibyiza byo kubumba bipfuye birimo igipimo cyinshi cyo gukora, ubushobozi bwo gukora ibice bigoye bifite ubusobanuro buhanitse kandi bwuzuye, hamwe nubushobozi bwo gukora ibice bifite ireme kandi byuzuye.Nubwo bimeze bityo ariko, guta-gupfa nabyo birashobora kubahenze bitewe nishoramari ryambere risabwa kugirango habeho ibishushanyo, imashini nibikoresho bisabwa, hamwe ningufu nyinshi zikoreshwa mugihe cyibikorwa.Nubwo bimeze bityo ariko, guta-gupfa bikomeje gukoreshwa cyane kandi bishyigikiwe ninganda nyinshi bitewe nubushobozi bwayo bwo gukora ibice byujuje ubuziranenge mubunini bunini kandi bwuzuye.