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1). Te Whakawera Whaiaro: Ko te kiriata whakamahana PTC he mea hoahoa me te waahanga whakahaere whaiaro, ko te tikanga ka whakatika aunoa i tana whakaputanga mana i runga i te pāmahana a tawhio noa. Ka piki ake te pāmahana, ka piki hoki te parenga o te rauemi PTC, ka heke te whakaputanga hiko. Ko tenei ahuatanga whakahaere whaiaro ka awhina i te aukati i te wera me te whakarato whakamahana pai me te haumaru.
2). Te Whakawera Tere: Ka taea e te kiriata whakamahana PTC te wera tere, ka taea te whakamahana tere o te waahi e hiahiatia ana. Ka whakakorehia te hiahia mo nga wa roa o mua i te whakamahana, ka whakarato i te wera tonu ina ka ana.
3). Pūngao Pūngao: PTC whakawera kiriata he pūngao-pai rite pau te nui e tika ana o te mana e hiahiatia ana ki te pupuri i te pāmahana e hiahiatia ana. Ko te waahanga whakahaere whaiaro e whakarite kia kore e moumou te taikaha o te mana, ka iti ake te kohi hiko ki nga tikanga whakamahana tuku iho.