He otinga whakarewa aunoa whai hua, ngāwari hoki te teihana kotahi o te karetao, he mea hanga hei whakapai ake i te pai o te whakaputa me te kounga o te whakarewa. He karetao ahumahi matatau me te hoahoa teihana rua tēnei teihana, e āhei ai ngā raina whakarewa e rua ki te mahi i te wā kotahi, ā, mā reira ka whakaitihia te wā mutu me te whakarei ake i te haere tonu me te pai whānui o te raina whakaputa.
1. Hoahoa Teihana Takirua: E rua ngā teihana motuhake o te teihana mahi. Ko tētahi te kawenga mō ngā mahi whakarewa, ko tētahi te kawenga mō te uta me te tango i ngā wahi mahi. Ka taea e ngā kaiwhakahaere te whakawhiti tere i ngā wahi mahi me te kore e pā ki te tukanga whakarewa, ka nui ake te pai o te whakaputa.
2. Aunoatanga Teitei: Ka whakamahia ngā karetao ahumahi mō ngā mahi whakarewa, hei whakaiti i ngā hapa tangata me te ngenge, hei whakarite hoki i te kounga whakarewa ōrite. Ka taea e ngā karetao te whakahaere tika i ngā ara me ngā tawhā whakarewa, kia pai ai mō ngā mahi whakarewa uaua pērā i te whakarewa ira me te whakarewa tuitui.
3. Ngāwari me te Urutau: Ka tautokohia e te teihana mahi ngā wahi mahi o ngā rahi me ngā āhua rerekē, ā, ka taea te whakarerekē i te tahora o te teihana, te aratau whakarewa rānei kia rite ki ngā whakaritenga, kia tutuki ai ngā hiahia o ngā taiao whakaputa rerekē me ngā tono tukanga.