Tātaritanga Tatauranga mō te Kounga
I tēnei wā e kaha haere ana te whakataetae, ehara te kounga i te mea he uara tāpiri noa iho, engari he whakaritenga matua kia ora ai ngā hua me ngā ratonga i te mākete. He maha ngā whakahaere kua whakatinana i ngā tirotiro, ngā arotake, me ngā whakapainga tukanga. Heoi, ki te kore he huarahi ine, ka huri ngā mahi whakapainga kounga hei whakatau ngāwari noa iho. Koinei te wāhi e whai wāhi nui ai te tātari tatauranga: te āwhina i te huri i ngā raraunga hei mōhiohio, kātahi hei whakatau whāinga. E matapakihia ana e tēnei tuhinga te whakamahinga o te tātari tatauranga hei aromatawai pūnaha, hei whakahaere, hei whakapai ake i te kounga.
1. He aha te hiranga o ngā tatauranga mō te kounga?
He hononga nui te kounga ki te rerekētanga. I roto i ngā tukanga whakaputa, ratonga rānei, he rerekētanga tonu—hei tauira, ngā rerekētanga o te rahi, te taumaha, te wā ratonga, te tere hapa rānei. Ehara i te mea he kino katoa ngā rerekētanga; ko ētahi he rerekētanga tūturu e kore e taea te whakakore katoa. Mā ngā tatauranga ka taea te wehewehe i te rerekētanga tūturu (take noa) mai i te rerekētanga e puta mai ana i ngā raruraru motuhake (take motuhake). Mā te mārama ki ngā pūtake o te rerekētanga, ka taea e ngā whakahaere te arotahi ki ngā whakapainga tūturu, kaua ki te "tinei noa i ngā ahi" e puta noa ana i ētahi wā.
Ki te kore he tatauranga, ka hē pea te mahi a ngā kaiwhakahaere. Hei tauira, ki te mea he kino ake te putanga whakaputa o nāianei i tō nanahi, ehara i te mea kei te heke te tukanga—he pikinga noa iho pea. I tetahi atu taha, ki te mea he tauira o te piki haere o ngā hapa, ka taea e ngā tatauranga te kite wawe i aua hapa i mua i te huri hei hapa nui.
2. Raraunga kounga: ngā momo me ngā tikanga kohikohi
Ko te pai o te tātari tatauranga ko te kounga anake o ngā raraunga e whakamahia ana. Mō te kounga, e rua ngā wāhanga o te tātaritanga:
1. Raraunga huanga: raraunga kāwai, hei tauira hapa/kore hapa, paahitia/kore e tutuki, momo hapa A/B/C. He mea noa tēnei raraunga i roto i ngā tirotiro whakamutunga, i ngā tirotiro tirohanga rānei.
2. Raraunga taurangi: raraunga tau tonu, hei tauira, te roa o te wāhanga (mm), te taumaha (karamu), te pakeke o te rauemi, te wā mahi (meneti). He nui ake ngā mōhiohio o ngā raraunga taurangi nā te mea kei roto ngā taipitopito o te rahi o te rerekētanga.
Me whai whakaaro te kohikohinga raraunga ki ētahi mātāpono: ngā whakamāramatanga hapa mārama, ngā tikanga ine ōrite, ngā rahi tauira e tika ana, me te pupuri tuhinga tika. Ko tētahi āhuatanga e warewarehia ana ko te pūnaha ine: ka hē pea ngā taputapu ine, ka rerekē rānei ngā whakatau a ngā kaiwhakahaere. Nō reira, he maha ngā whakahaere e whakahaere ana i ngā aromatawai pūnaha ine (hei tauira, ngā rangahau whakahoki me te tāruarua) kia pono ai ngā raraunga kua riro mai.
3. Ngā tatauranga whakaahua: te taahiraa tuatahi ki te mārama ki te kounga
Ko te taahiraa tuatahi o te tātari he tatauranga whakaahua. Ko te whāinga he whakaahua i te āhua o te kounga o nāianei. Ko ētahi o ngā mehua e whakamahia whānuitia ana ko:
– Toharite: te uara waenga e tohu ana i te ia whānui.
– Tau waenga: te uara waenga e ātete ake ana ki ngā mea o waho.
– Te rerekētanga me te paerewa rerekētanga: whakaahuahia te whānuitanga o te rerekētanga. Ko ngā rerekētanga nui te "hoariri" o te kounga.
– Mōrahi–Iti: ka āwhina ki te kite i te whānuitanga o ngā hua o te tukanga.
– Ōrau hapa: mō ngā raraunga huanga.
Haunga ngā tau, he mea nui te whakaaturanga. Mā ngā kauwhata, ngā kauwhata pouaka, me ngā kauwhata marara ka āwhina i te whakaaturanga i te āhua o te tohatoha, ngā mea ka puta mai i waho pea, me ngā whanaungatanga i waenga i ngā taurangi. Hei tauira, ka taea e te kauwhata marara te whakaatu ka piki ake ngā hapa ina teitei rawa te pāmahana o te mīhini—he tohu wawe tēnei ki te pūtake o te take.
4. Te whakahaere tukanga me te Mana Tukanga Tatauranga (SPC)
Ko tētahi o ngā whakamahinga rongonui o ngā tatauranga mō te kounga ko te Mana Whakahaere Tukanga Tatauranga (SPC), inā koa mā roto i ngā tūtohi whakahaere. Ko te whāinga o ngā tūtohi whakahaere he aroturuki i tētahi tukanga i roto i te wā, me te kite mēnā kei te mau tonu te pumau o te tukanga i roto i ngā tatauranga.
Ngā momo tūtohi whakahaere noa:
– Pae-X me te tūtohi R: mō ngā raraunga taurangi i roto i ngā rōpū iti (hei tauira, 5 tauira ia hāora).
– Tūtohi I-MR: mō ngā raraunga takitahi (hei tauira, kotahi te inenga mō ia wā).
– tūtohi-p: mō te ōwehenga o ngā hapa (ngā huanga).
– tūtohi-c, tūtohi-u rānei: mō te maha o ngā hapa mō ia waeine.
Ko te uho o te tūtohi whakahaere ko te rohe whakahaere o runga (UCL) me te rohe whakahaere o raro (LCL). Mena ka whiti ngā tohu raraunga i ēnei rohe, ka hanga rānei i tētahi tauira motuhake (hei tauira, he ia piki, he oma roa i tētahi taha), ka tohu i te aroaro o tētahi take motuhake. Ko te painga o te SPC ko tana ārai i te tauhohenga nui ki ngā rerekētanga noa, ā, ka akiaki i ngā mahi whakatika ina wātea noa ngā taunakitanga tatauranga.
5. Te āheinga o te tukanga: ka taea e te tukanga te whakatutuki i ngā whakaritenga?
Kāore te tukanga pumau e kī taurangi ka tutuki i a ia ngā whakaritenga a te kiritaki. Koinei te wāhi e uru mai ai te tātari āheinga, hei whakautu i te pātai: he pēhea te pai o te tukanga ki te whakaputa hua i roto i ngā manawanui kua tohua?
Ngā taupū e whakamahia pinepinetia ana:
– Cp: e whakarite ana i te whānui o te whakatakotoranga ki te rerekētanga o te tukanga (me te kore e titiro ki te tūranga toharite).
– Cpk: e whakaaro ana ki te tūranga toharite e pā ana ki ngā rohe whakatakotoranga; e whakaata ana mēnā he "piri" te tukanga ki tētahi taha.
– Pp me Ppk: he rite ki a Cp/Cpk engari he rerekētanga whānui (mo te wā roa), e whakamahia ana mō ngā raraunga tukatuka kāore anō kia tino whakahaeretia.
Hei tikanga whānui, he nui te uara Cpk o te ≥ 1,33 e kiia ana he rawaka i roto i te maha o ngā ahumahi, engari ko ngā ahumahi mōrearea nui ka whai pea i ngā taumata teitei ake. Heoi, me pānui tēnei tatauranga i roto i te horopaki: te momo hua, ngā utu rahunga, me ngā hiahia o te kiritaki.
6. Tātari whakatau: te whakamātautau i ngā whakapae me te whakataurite i ngā tukanga
Ina whakamātau ngā whakahaere i ngā panonitanga—pērā i te panoni i ngā rauemi mata, te tautuhi anō i ngā tawhā mīhini, te whakangungu rānei i ngā kaiwhakahaere—me whakarite kia tino whakapai ake aua panonitanga i te kounga. Mā te tātari whakatau ka taea te whakatau i runga i ngā tauira.
Ētahi tikanga noa:
– Whakamātautau-T: ka whakataurite i te toharite o ngā āhuatanga e rua (i mua me muri, mīhini A me mīhini B).
– ANOVA: ka whakataurite i ngā rōpū neke atu i te rua (hei tauira, e toru ngā kaiwhakarato).
– Whakamātautau Chi-square: mō ngā raraunga huanga, hei tauira, te whakatairite i ngā ōwehenga hapa i waenga i ngā nekehanga.
– Te whakamuri: te whakatauira i te whanaungatanga i waenga i te kounga putanga me ngā āhuatanga tukanga (te pāmahana, te pēhanga, te tere).
He mea nui kia aro atu ki ngā whakapae o te tikanga—hei tauira, te āhua noa, te tū motuhake, me te ōritetanga o ngā rerekētanga. Mēnā kāore e tutuki ngā whakapae, ka whakaarohia pea te whakarerekētanga raraunga, te whakamahi rānei i ngā tikanga kore-taurite.
7. Te hoahoa o ngā whakamātautau (DOE): te whakapai ake i te tukanga whai hua
Mena ko te whāinga he kimi i te huinga tino pai o ngā āhuatanga tukanga, he taputapu tino whai hua te Hoahoa Whakamātautau (DOE). He rerekē ki te whakamātautau i te āhuatanga kotahi i te wā kotahi, ka taea e te DOE te whakamātautau i ngā āhuatanga maha i te wā kotahi me te hopu i ngā taunekeneke i waenga i a rātou.
He tauira māmā noa iho: ka pāngia te kounga o te mata e te tere o te miihini, te pāmahana, me te momo hinu whakahinuhinu. Ka taea e te DOE te whakaatu ehara i te mea ko ēhea ngā āhuatanga tino whai mana, engari ko te huinga o ngā tawhā e hua ake ai te iti rawa o ngā hapa. Ka hua ake tēnei i ngā whakatikatika tere ake, i ngā utu whakamātautau iti ake, me ngā whakataunga tika ake i roto i ngā tatauranga.
8. Te hono i ngā tatauranga ki te ahurea kounga
Kāore e whai hua te tātari tatauranga mēnā he mahi tari kounga noa iho. Me hanga e ngā whakahaere he ahurea raraunga: e mārama ana ngā kaiwhakahaere ki te tikanga o ngā tūtohi whakahaere, ka taea e ngā kaiwhakahaere te pānui i ngā au, ā, ka whakamahia e ngā kaiwhakahaere ngā taunakitanga i te wā e whakatau ana. Hei tāpiri, me hono ngā tatauranga ki ngā mahi o te ao tūturu: ina kitea he raruraru, me whai tikanga hei tirotiro i te pūtake o te raruraru (hei tauira, ko te tātaritanga 5 Take, te tātaritanga wheua ika rānei) me te whai i ngā whakapainga.
Ko tētahi hapa e kitea whānuitia ana ko te "kohi raraunga kāore he kaupapa." Me ahu mai ngā pātai pakihi mō te tātari tatauranga: he aha tāu e hiahia ana ki te whakapai ake, he aha tāu whāinga, ko ēhea ngā mea tino whai mana, me pēhea te aroturuki i ngā hua.
Whakamutunga
Ko te tātari tatauranga mō te kounga he huarahi e huri ai te whakahaere kounga mai i te tirotiro noa ki te whakahaere me te whakapai ake e ahu mai ana i ngā raraunga. Mā roto i ngā tatauranga whakaahua, SPC, te āheinga tukanga, te whakamātautau whakatau, me te DOE, ka taea e ngā whakahaere te mārama ki ngā rerekētanga, te kite tere ake i ngā raruraru, me te whakarite kia tutuki ngā whakaritenga a te kiritaki i ngā tukanga. Hei whakamutunga, ehara ngā tatauranga i te tau noa iho; he reo whāinga hei ārahi i te whakapai tonu—te whakaiti i ngā hapa, te whakaiti i ngā utu, me te whakanui ake i te pai o te kiritaki.
Ki te hiahia koe, ka taea e au te whakarerekē i tēnei tuhinga ki tētahi horopaki motuhake (te hangahanga, te hauora, te mātauranga, te ratonga kiritaki rānei) ka taea rānei te tāpiri i ngā tauira o ngā tataunga Cp/Cpk me ngā tūtohi whakahaere i runga i ō raraunga.
