Siyazi ukuthi uma kukhulunywa ngokuthenga imikhiqizo yamabhereyi, izinto ezintathu ezikhathazayo eziyinhloko yilezi: Okokuqala, usuku lokulethwa alukho ngesikhathi, ikhwalithi yamasampula kanye nokuthunyelwa kwangempela akuhambisani, futhi akekho ozophendula isevisi yangemva kokuthengisa. Ngakho-ke, ngaphambi kokuba inqwaba ngayinye yezimpahla isuke efektri, sithwebula amavidiyo bese siwathumela kumakhasimende ukuze aqinisekiswe. Sithembisa ukuphendula ezinkingeni zangemva kokuthengisa zingakapheli amahora angama-24. Sinikeze abasebenzi abazinikele bokulandelela kumakhasimende ngamunye. Ukuze sixazulule kangcono futhi ngokushesha izinkinga zangemva kokuthengisa, ngonyaka odlule sinikeze izingcezu eziyizigidi ezi-5 kumakhasimende avela emazweni amaningi, ngesilinganiso esihle kakhulu esingu-99.2%. Sidlulile isitifiketi se-ISO futhi umbiko ungafinyelelwa. Sinamakhasimende angaphezu kwama-30 abambisane iminyaka engaphezu kwemi-5, futhi sihlangabezane nezidingo zamakhasimende kahle futhi saxazulula izinto ababekhathazekile ngazo.