Ngokusho kokuhlukahluka kwezinga lokushisa kwendawo yokusebenza, ukuguqulwa komzimba kwenzeka kwisilawuli sokushisa, esikhiqiza imiphumela ethile ekhethekile, futhi sikhiqize uchungechunge lwezinto ezizenzakalelayo zokulawula ukwenza noma ukunqamula isenzo.