Imodeli ilingisa ukwakheka komzimba ongaphezulu kowesilisa omdala futhi ingenza ukuhlinzwa okuyisisekelo okuhlukahlukene, okuhlanganisa ukuphathwa kwendlela yokuphefumula yokuphefumula kanye namasu okuncelisa esiswini ngokusebenzisa ikhala nelomlomo.