Iyi mpano eshatu yibigo byubucuruzi byashizweho bizanaikaye, mug mugi, n'ikaramu, bihura no gukoresha ubucuruzi butandukanye.Ikaramu nziza yerekana ko byihuse kandi byoroshye kwandika, bifatika kandi byoroshye.Guhitamo neza kubakozi bo mu biro nimpano nziza kumunsi mukuru cyangwa isabukuru.