1. Niba wunvise urusaku ruva kuri hub, mbere ya byose, ni ngombwa gushakisha aho urusaku rubera. Hariho ibice byinshi byimuka bishobora kubyara urusaku, cyangwa ibice bimwe bizunguruka bishobora guhura nibice bitazunguruka. Niba urusaku ruri mu majwi rwemejwe, ibyuma bishobora kwangirika kandi bigomba gusimburwa.
2. Kuberako imiterere yakazi iganisha ku kunanirwa kumpande zombi zimbere zirasa, nubwo icyuma kimwe cyangiritse, birasabwa kubisimbuza kubiri.
3. Kubyara hub biroroshye, birakenewe rero gukoresha uburyo bukwiye nibikoresho bikwiye uko byagenda kose. Mugihe cyo kubika, gutwara no kwishyiriraho, ibice bigize ibyuma ntibishobora kwangirika. Ibikoresho bimwe bisaba umuvuduko mwinshi, bityo ibikoresho byihariye birakenewe. Wemeze kohereza amabwiriza yo gukora imodoka.