Twese twizera ko imico yumuntu ihitamo ibicuruzwa 'ubuziranenge, ibisobanuro byahisemo ibicuruzwa' hejuru - nziza, hamwe numwuka witsinda rifatika,Ikirere cya Difase, Lube amavuta, Sisitemu imwe ya Librication Sisitemu,Sisitemu yo hagati ya Lincoln. Buri gihe dutegereje gukora umubano mwiza wubucuruzi nabakiriya bashya kwisi. Ibicuruzwa bizatanga ku isi hose, nk'Uburayi, Amerika, Ositaraliya, Umujyi wa Indoneziya, Indoneziya, Kugurisha . Hamwe niyi nkunga zose, turashobora gukorera buri mukiriya ufite ibicuruzwa byiza nigihe cyo kohereza mugihe gikwiye. Kuba ikigo gikura gikura, ntidushobora kuba byiza, ariko turimo tugerageza uko dushoboye kose kuba umufasha wawe mwiza.