Imbere ya Sisitemu

Kwirinda ibicu no kwirinda ibitonyanga: iyo sisitemu yizuba ryimbere ikozwe, hashyizweho imyanya ibiri yigenga irinda igihu nigitonyanga kiva imbere.
Kuzigama ingufu no kubungabunga ibidukikije: Ubushyuhe bwimbere bwimbere burashobora kurengerwa binyuze mumashanyarazi cyangwa guhana, bityo kugabanya ingufu nigiciro.
Kuzigama amazi: Ikirahure kirashobora kugabanya neza ibihingwa no guhumeka kwubutaka bushobora gutuma ikirere gihinduka.Kandi rero, amazi yo kuhira arakizwa.