Kuhlukaniswe ngokulawulwa kwesikhuthazo:
1. Ukudlidliza kwamahhala: Ukudlidliza kokuthi uhlelo alusasengaphansi kokudlidliza kwangaphandle ngemva kokudlidliza kokuqala.
2. Ukudlidliza okuphoqelelwe: Ukudlidliza kohlelo ngaphansi kokushukunyiswa kokulawula kwangaphandle.
3. Ukudlidliza okuzivuselelayo: Ukudlidliza kohlelo ngaphansi kokudlidliza kokulawula kwalo.
4. Ukudlidliza kokubamba iqhaza: Ukudlidliza okuvuselelwa ushintsho lwamapharamitha esistimu uqobo.