Ibiranga ibikoresho byemejwe:
1. Iyo mesheri ibikoresho bibiri byo hanze, kuzunguruka bibaho muburyo bunyuranye, mugihe cyo kwigoza ger yimbere hamwe nibikoresho byo hanze kuzunguruka bibaho mubyerekezo bimwe.
2. Hagomba kwitabwaho kubijyanye numubare wamenyo kuri buri kikoresho mugihe cyo kwinjiza ibikoresho binini (imbere) hamwe nigikoresho gito (cyo hanze) kirashobora kubaho.
3. Mubisanzweibikoresho by'imberebayoborwa nibikoresho bito byo hanze
4. Yemerera igishushanyo mbonera cyimashini
Gusaba ibikoresho byimbere: ibikoresho by'umubumbegutwara ibipimo byo kugabanya byinshi, ibicurane nibindi.