Video: DPM Six Sigma yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Six Sigma qhov zoo yog ib theem ntawm qhov tsis xws luag uas sib haum mus rau 3.4 dpmo (tsis xws luag hauv ib lab lub sijhawm). Qhov no tsis txhais hais tias cov khoom kawg yog 3.4 dpm ua . Nws txhais tau tias txhua lub sijhawm yog nyob ntawm 3.4 dpm ua . Cov khoom lag luam feem ntau muaj ntau lub sijhawm rau qhov tsis xws luag. Txhua tus yam ntxwv ntsuas tau sawv cev rau lub sijhawm.
Ib yam li ntawd, tib neeg nug, DPM yog dab tsi?
Hauv kev txhim kho cov txheej txheem, qhov tsis xws luag ntawm ib lab lub sijhawm lossis DPMO (lossis tsis ua raws li ib lab lub sijhawm (NPMO)) yog qhov ntsuas ntawm cov txheej txheem kev ua haujlwm. Nws yog txhais raws li. Qhov tsis xws luag tuaj yeem txhais tau tias yog qhov tsis sib xws ntawm a zoo yam ntxwv (xws li lub zog, dav, teb lub sij hawm) rau nws specification.
Kuj Paub, qhov feem pua yog 6 Sigma? Sigma qib
| Sigma qib | Sigma (nrog 1.5s ua haujlwm) | Feem pua yield |
|---|---|---|
| 3 | 1.5 | 93.3% |
| 4 | 2.5 | 99.38% |
| 5 | 3.5 | 99.977% |
| 6 | 4.5 | 99.99966% |
Ib sab saum toj, vim li cas Six Sigma txhais tau tias 3.4 tsis xws luag?
Lub hom phiaj ntawm Six Sigma kev ua tau zoo yog txo cov txheej txheem tsim tawm txawv txav kom nyob rau lub sijhawm ntev, uas yog cov neeg siv khoom sib sau ua ke nrog peb cov txheej txheem dhau sijhawm, qhov no yuav ua rau tsis muaj ntau tshaj 3.4 defect qhov chaw ib lab (PPM) lub sijhawm (lossis 3.4 defects ib lab lub sijhawm - DPMO).
Dab tsi yog qhov lees paub qib sigma?
Txoj cai specification txwv yog ntawm 4.5 sigma los ntawm qhov nruab nrab nrog qhov tsis xws luag ntawm 3.4 feem ntawm ib lab (PPM). Sab laug specification txwv yog ntawm 7.5 sigma los ntawm qhov nruab nrab nrog qhov tsis xws luag ntawm 0 PPM. Tag nrho qhov tsis xws luag, yog li ntawd, yog 3.4 PPM.
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