Siyini isithombe sesakhiwo?
Umdwebo wezakhiwo uhlelo olubonakalayo olumelela ukugeleza kwenqubo, ukugeleza komsebenzi wokuphathwa kwenqubo yebhizinisi, ukugeleza komsebenzi wezobuchwepheshe, ukugeleza komsebenzi wedatha, nokuningi. Zibonakaliswa ngezimo ezahlukene, amagama, imigqa nemicibisholo ebonisa ukugeleza okubukwayo. Zisiza onjiniyela, abaklami, ababambiqhaza, nabaqambi ukuba baqonde ukwakheka kwephrojekthi, amaphutha okwakhiwa kwesistimu yamanje, nendlela yokwenza ukwakhiwa kwesimo sesikhathi esizayo kube namandla futhi kube namandla ekushintsheni.