Kubera ko ibicuruzwa bitagira umwanda bifite ibiranga ubuso bworoshye kandi bukomeye, ntibyoroshye kwegeranya umwanda, byoroshye koza, bityo bikoreshwa cyane mubikoresho byo kubaka, gutunganya ibiryo, kugaburira.Ibicuruzwa bitagira umwanda bivuga gukoresha ibikoresho byicyuma nkibikoresho nyamukuru bitunganyirizwa hamwe nibikenerwa bya buri munsi, ibikoresho byinganda.Nicyuma kivanze cyane gishobora kurwanya ruswa mu kirere cyangwa ibitangazamakuru byangiza kandi bifite ubuso bwiza kandi birwanya ruswa.Ikoreshwa mubice byinshi byicyuma, mubisanzwe bita ibyuma bidafite ingese.