He nui ngā whakamahi o ngā tauwhiro rata i roto i te tahuhu mata, te tahuhu rakau, me ngā whenua motokāro. Nā ngā mate kua whakapā ki ngā rata i hanga ai ngā rata me te tūponotanga o te whakamahi tuatahi mō te whakawehenga me te whakatutuki kaiwhai ingoa pai. Ka mauhere te mahi mate ki roto i te tauwhiro, whakaae mai ki te wehe tonu ā-waho me te pai ake i ngā hua. Kia whakapono, ka whakahoki te wehi me te wehi pai i runga i te whakahaere i ia tauwhiro rata pumau hei whakarite ki tētahi anō take whaiaro i te ao. Mai i te whakakoretanga o ngā korekore, te whakapai, ki ngā whakatūpū kaiwhai ingoa, kei te pai ngā tauwhiro rata pai nei.