Te Mana Kounga e Hangai ana ki ngā Raraunga Tatauranga
I tēnei taiao ahumahi e piki haere ana te whakataetae, ehara te kounga i te whakaritenga "tāpiri uara" noa iho, engari he whakaritenga matua mō te whakaae a te mākete ki ngā hua me ngā ratonga. He maha ngā whakahaere kua kite kāore e ranea te tirotiro whakamutunga anake hei whakarite i te kounga. Ko tētahi huarahi whai hua ake ko te whakahaere i te kounga puta noa i te tukanga, me ngā whakataunga e peia ana e ngā raraunga. Koinei te wāhi e uru mai ai te mana whakahaere kounga tatauranga (SQC): he tikanga pūnaha mō te aroturuki, te tātari, me te whakapai ake i ngā tukanga mā te whakamahi i ngā tikanga tatauranga kia taea ai te mārama, te whakaiti, me te whakahaere i ngā rerekētanga.
He aha te hiranga o ngā raraunga tatauranga i roto i te whakahaere kounga?
He rerekētanga kei ia tukanga—ahakoa he hanga, he ratonga kiritaki, he tukatuka raraunga rānei. Ka puta ake pea ngā rerekētanga mai i ngā rerekētanga o ngā rauemi mata, ngā āhuatanga o te mīhini, ngā pūkenga kaiwhakahaere, ngā huringa taiao, me ngā tikanga mahi kāore i te ōrite. Mena ka whakawhirinaki noa ngā whakahaere ki te māramatanga, ki te "tikanga" rānei, ka kore e kitea ngā pūtake, ka hē te ahunga o ngā whakapainga, ka piki ake ngā utu kounga (te mahi anō, te para, ngā amuamu a te kiritaki, te wā kore mahi).
Mā ngā raraunga tatauranga ka āwhina i a tātou ki te whakautu i ngā pātai matua pēnei i: te pumau o tā tātou tukanga? He rerekētanga taiao noa iho rānei ngā huringa e puta ana, he take motuhake rānei? Kei te tutukihia ngā whāinga whakatakotoranga, kāore rānei? Mā te raraunga, ka noho whai take te whakatau kaupapa. Hei tāpiri, mā te tātari tatauranga ka taea e ngā whakahaere te kite i ngā tauira e kore e kitea e te kanohi tahanga—hei tauira, he ia heke o te mahi a te mīhini, he pikinga rānei o ngā hapa i tētahi wā motuhake.
Ngā Ariā Taketake: Te Take Noa me te Rerekētanga o te Take Motuhake
I roto i te huarahi tatauranga, ka wehea ngā rerekētanga tukanga kia rua:
1. Ngā rerekētanga take noa
Ngā rerekētanga e pā ana ki ngā tukanga o ia rā. Hei tauira, ngā piki me ngā heke iti o te pēhanga mīhini, ngā rerekētanga iti i waenga i ngā puranga rauemi mata, ngā rerekētanga noa rānei o te kaiwhakahaere. Ka taea te whakaiti i tēnei rerekētanga mā te whakapai ake i te pūnaha (te paerewa, te whakangungu, te whakapai ake i te mīhini).
2. Ngā rerekētanga take motuhake
Ko ngā rerekētanga e puta mai ana i ngā āhuatanga rerekē, pērā i ngā wāhanga mīhini kua tawhito, ngā taputapu ine kāore i whakatikatikaina, ngā hapa tautuhinga, ngā rauemi mata hapa rānei mai i ngā kaiwhakarato. I te nuinga o te wā, me mahi whakatikatika tonu tēnei rerekētanga nā te mea ka taea e ia te huri i te tukanga ki waho o te mana whakahaere.
Ko te whāinga o te whakahaere kounga e ahu mai ana i ngā tatauranga he wehewehe i waenga i ēnei momo rerekētanga e rua. Ki te kore tēnei māramatanga, ka taea e ngā kamupene te hē: te whakararuraru i tētahi tukanga e pumau ana, te tuku rānei i tētahi tukanga raruraru kia mau tonu, me te whakaaro he "noa" noa iho.
Ngā Utauta Matua i roto i te Whakahaere Kounga Tatauranga
1. Tūtohi Whakahaere
Ko te tūtohi whakahaere te taputapu tino rongonui i roto i te SQC. Ka whakamahia hei aroturuki i ngā tawhā kounga i roto i te wā (hei tauira, te taumaha o te hua, te whānui o te wāhanga, te wā ratonga, te maha rānei o ngā hapa). He rārangi pokapū (toharite) kei te tūtohi whakahaere me ngā rohe whakahaere o runga me raro (UCL me LCL) kua tatauhia ā-tatauranga. Ina taka ngā tohu raraunga ki roto i ēnei rohe, ā, kāore e whakaatu i ngā tauira whakapae, ka kiia te tukanga he pumau.
Mā ngā tūtohi whakahaere ka āwhina i te kite:
– Ngā tohu kei waho o te UCL/LCL (e tohu ana i tētahi take motuhake)
– Te ia piki/te ia heke raupapa
– Ngā tauira tāruarua (hei tauira, ngā pānga nekehanga)
– Ngā rerekētanga ka heke, ka piki rānei i te wā ohorere (ngā huringa pūnaha)
He rerekē te momo tūtohi whakahaere i runga i ngā raraunga, hei tauira:
– X̄-R / X̄-S mō ngā raraunga taurangi (ngā inenga tonu) pērā i te roa, te taumaha rānei.
– tūtohi-p, tūtohi-np mō te ōwehenga o ngā waeine hapa.
– tūtohi-c, tūtohi-u mō te maha o ngā hapa mō ia waeine.
2. Histogram me te Tohatoha Raraunga
E whakaatu ana te histogram i te tohatoha o ngā raraunga: ahakoa he ōrite, he piko, he rua-ara, he kei roto rānei ngā mea o waho. Mā te histogram, ka taea e te tīma kounga te aromatawai mēnā he noa ngā rerekētanga, mēnā he ranunga o ngā tukanga e rua (hei tauira, e rua ngā mīhini rerekē), mēnā rānei kei te neke haere te tukanga mai i te ūnga.
3. Tūtohi Pareto
He maha ngā wā ka pā te mātāpono Pareto (80/20) ki ngā take kounga: he iti noa ngā hapa e whai wāhi ana ki te nuinga o ngā mate. Mā te tūtohi Pareto ka āwhina i te whakatau i ngā whakapainga mā te whakaatu i ngā take, i ngā hapa rānei i runga i te raupapa o tō rātou horapa. Nō reira, ka arotahi ngā whakahaere ki ngā take he nui te pānga i te tuatahi.
4. Kauwhata Take-Pānga (Iwi Ika/Ishikawa)
Ina tohu ngā raraunga i tētahi raruraru, ka āwhina te wheua ika ki te mahere i ngā pūtake pea i runga i ngā kāwai pēnei i te Tangata, te Mīhini, te Tikanga, te Rauemi, te Ine, me te Taiao. Ahakoa te āhua kounga, he whai hua tēnei taputapu ina honoa ki ngā raraunga hei whakamātautau i ngā whakapae take.
5. Kauwhata Marara me te Tātari Hononga
Ka whakamahia ngā kauwhata marara hei tirotiro i te whanaungatanga i waenga i ngā taurangi e rua, pērā i te pāmahana mīhini me te maha o ngā hapa, te wheako o te kaiwhakahaere me te wā huringa. Mēnā ka kitea he whanaungatanga, ka taea e te tīma te whakahaere i ētahi atu whakamātautau, i ētahi atu tātaritanga rānei hei whakatau mēnā he whanaungatanga take te whanaungatanga.
Ngā Tohu Matua: Te Pūkenga Tukanga (Cp, Cpk)
Haunga te pumau, me āhei hoki te tukanga ki te whakatutuki i ngā whakaritenga. Ka ine te āheinga tukanga i te pai o te tohatoha putanga tukanga ki roto i ngā whakaritenga a te kiritaki.
– E whakaahua ana a Cp i te āheinga pūmanawa (te whānui o ngā whakatakotoranga me te rerekētanga o te tukanga), ki te mea kei waenganui tonu te tukanga.
– Ka whakaarohia e Cpk mēnā kei te neke te tukanga mai i te ūnga (te pokapū).
I roto i ngā kupu mahi, ko te uara Cp/Cpk teitei ake e tohu ana i tētahi tukanga e "haumaru" ake ana i ngā rerekētanga. He maha ngā ahumahi e whai ana i te Cpk ≥ 1,33 mō ngā tukanga pumau, ā, he teitei ake mō ngā wāhanga nui. Heoi anō, me whakarerekē te uara whainga i runga i te mōrearea, te utu, me ngā hiahia o te kiritaki.
Ngā Hipanga mō te Whakatinana i te Mana Kounga e Hangai ana ki te Tatauranga
1. Whakatauhia ngā āhuatanga kounga (CTQ: He mea nui ki te Kounga)
Kōwhiria ngā tawhā e tino pā ana ki te pai o te noho o te kiritaki, te haumaru rānei, pērā i te kaha o te rauemi, te rahi o te kī, te tere turuturu rānei.
2. Hoahoahia he pūnaha ine pono
Ka hua ake ngā whakatau kino i ngā raraunga kino. Whakatikatikahia ngā taputapu, tautuhia ngā tikanga ine, ā, ki te tika, whakahaerehia ngā rangahau pūnaha ine (hei tauira, te Ine me te Whakamātautau) kia rite ai ngā hua.
3. Kohia ngā raraunga i roto i te huarahi whai hanganga
Whakatauhia te auau tauira, te rahi tauira, me te tikanga hopu. Whakaurua te horopaki: ko tēhea mīhini, te nekehanga, te puranga rauemi, te kaiwhakahaere, me ngā āhuatanga taiao.
4. Whakamahia ngā tūtohi whakahaere hei aroturuki i te pumau.
Tāutuhia ngā tohu kāore e taea te whakahaere, ā, me mahi wawe tonu mō ngā take motuhake. Tuhia ngā mahi whakatikatika hei kohikohi i ngā akoranga.
5. Tātarihia ngā pūtake me te whakapai ake i te tukanga
Mena he nui rawa te rerekētanga o te take noa, whakatinanahia ngā whakapainga pūnaha: te mahi paerewa, te tiaki ārai, te whakapai ake i ngā kaiwhakarato, te whakahou anō i ngā tukanga, te aunoa rānei.
6. Arotakehia ngā āheinga tukanga me te whakarerekē i ngā whāinga
Kia pumau te tukanga, tatauhia te Cp/Cpk, ka aromatawai mēnā e hiahiatia ana ētahi atu whakapainga kia tutuki ai ngā whakaritenga me ngā tawhē e tika ana.
7. Hangaia he ahurea o ngā whakataunga e ahu mai ana i ngā raraunga
Ehara i te mea he taputapu noa iho te SQC, engari he tikanga whakahaere: ngā hui o ia rā e ahu mai ana i ngā tūtohi, te ako mai i ngā raraunga, me te piripono ki ngā paerewa.
Ngā Wero e Puta Auau ana
Ko ētahi whakahaere kāore e whakatinana i te SQC, ehara i te mea he hapa te tikanga, engari he ngoikore te whakatinanatanga. Ko ngā wero noa ko ngā raraunga koretake, ngā whakamāramatanga hapa tūpono, te tauira kore e whakaatu, te maha rawa o ngā tohu kāore i te whakaarohia, me te ātete a ngā kaimahi nā te mea e kitea ana he taumahatanga whakahaere. Ko te otinga ko te whakangawari i ngā inenga, te whakahaere aunoa i te kohikohi raraunga ki te taea, te whakangungu i ngā tīma ki te whakamārama tūtohi whakahaere, me te whakaatu i ngā painga tūturu pēnei i te whakaiti i ngā para, i ngā amuamu rānei.
Te Katinga
He huarahi kaha te whakahaere kounga e ahu mai ana i ngā raraunga tatauranga hei whakarite kia pai te rere o ngā tukanga, kia tutuki hoki ngā putanga i ngā hiahia o te kiritaki. Mā te wehewehe i ngā take noa me ngā take motuhake o te rerekētanga, te whakamahi i ngā tūtohi whakahaere, te tātari tohatoha, te tātari Pareto, me te āheinga tukanga, ka taea e ngā whakahaere te huri i te whakahaere kounga mai i te mahi tauhohe ki tētahi pūnaha ine, ārai. Hei whakamutunga, ko te kounga e ahu mai ana i ngā raraunga ehara i te mea ka whakaiti noa i te utu o te korenga engari ka whakarei ake hoki i te ingoa pai, te whakawhirinaki o te kiritaki, me te whakataetae mō te wā roa.
Ki te hiahia koe, ka taea e au te whakarerekē i tēnei tuhinga ki tētahi horopaki motuhake (hei tauira, te hanga kai, te motuka, ngā hōhipera, ngā ratonga matihiko rānei) me te tāpiri i ngā tauira māmā o te tūtohi whakahaere, o ngā tātaitanga Cp/Cpk rānei.
