Ibiranga ibikoresho byemejwe:
1. Iyo meshing ibikoresho bibiri byo hanze, kuzunguruka bibaho muburyo bunyuranye, mugihe cyongera anibikoresho by'imberehamwe nibikoresho byo hanze kuzunguruka bibaho mu cyerekezo kimwe.
2. Hagomba kwitabwaho kubijyanye numubare wamaboko kuri buri kikoresho mugihe cyo kwishongora mubikoresho binini byimbere hamwe nigikoresho gito cyo hanze, kuva nubwoko butatu bwo kwivanga bushobora kubaho.
3. Mubisanzwe ibikoresho byimbere bitwarwa nibikoresho bito byo hanze
4. Yemerera igishushanyo mbonera cyimashini
Gusaba ibikoresho byimbere: ibikoresho by'umubumbegutwara ibipimo byo kugabanya byinshi, ibicurane nibindi.