Ibiranga ibikoresho byemejwe:
1. Iyo meshing ibikoresho bibiri byo hanze, kuzunguruka bibaho muburyo bunyuranye, mugihe cyongera an ibikoresho by'imberehamwe nibikoresho byo hanze kuzunguruka bibaho mu cyerekezo kimwe.
2. Hagomba kwitabwaho kubijyanye numubare wamenyo kuri buri kikoresho mugihe cyo kwinjiza ibikoresho binini (imbere) hamwe nigikoresho gito (cyo hanze) kirashobora kubaho.
3. Mubisanzwe ibikoresho byimbere bitwarwa nibikoresho bito byo hanze
4. Yemerera igishushanyo mbonera cyimashini
Gusaba ibikoresho byimbere:Ibikoresho by'ibikoresho byo kugabanya byinshi, ibicurane n'ibindi.