Lean vs Six Sigma
Rau kev ua tiav thiab kev txhim kho txuas ntxiv ntawm kev lag luam, ob qho tib si lean thiab rau-sigma ua lub luag haujlwm tseem ceeb. Txawm hais tias 6-sigma yog raws li lub tswv yim thiab lean yog raws li cov tswv yim, ob qho tib si kev lag luam tawm tswv yim khiav ib sab los coj kev lag luam mus txog saum ntuj txwv. Lean yog ib qho ntawm cov txheej txheem tseem ceeb, uas yog ib feem ntawm txoj kev rau kev sib tw.
Lean tab tom txhim kho cov txheej txheem ntws ntawm txhua yam khoom thaum nws tsim khoom. Hauv cov lus yooj yooj yim, lean tsom rau kev txo cov khoom pov tseg thaum lub sij hawm ib qho txheej txheem thiab thaum kawg nce cov txheej txheem ceev. Muaj ob lub tswv yim ntawm lean. Ib lub tswv yim hu ua "Just-in-time" thiab lwm qhov yog "Jidoka"."Just-in-time" txhais tau hais tias npaj cov txheej txheem tsim khoom raws li qhov muaj feem cuam tshuam ntawm cov khoom lag luam yuav raug txo kom tsawg kawg nkaus. Ntawm qhov tod tes, Jidoka txhais tau hais tias qhia thiab tiv thaiv cov ntsiab lus tsis raug hauv cov kab ntau lawm, uas tuaj yeem dhau los ua qhov ua rau cov khoom tsis zoo. Daim ntawv qhia khiav ntawm lean yog xws li: txheeb xyuas tus nqi, txhais cov nqi ntws, txiav txim siab ntws ntawm cov txheej txheem, txhais cov rub thiab thaum kawg txhim kho cov txheej txheem. Vim tias, lean deals nrog ntau lawm, yog li nws yog cov khoom muag raws li.
Six-sigma
Six-sigma txhais tau tias txo cov txheej txheem kev hloov pauv ntawm txhua yam khoom thaum nws tsim khoom. Nyob rau hauv luv luv, rau-sigma yog ib tug tswj lub tswv yim ntawm kev txo cov teeb meem zoo nyob rau hauv ib tug khiav txoj kev. Nws cov ntaub ntawv taw qhia cov txheej txheem yog raws li kev tshawb fawb thiab cuam tshuam nrog cov txheej txheem. Los ntawm kev siv cov txheej txheem no, peb tuaj yeem kov yeej qhov kev hloov pauv ntawm cov txheej txheem los ntawm kev mus txog lub hauv paus ntawm qhov teeb meem. Daim ntawv qhia kev khiav ntawm rau-sigma yog txhais qhov teeb meem, ntsuas qhov teeb meem, txheeb xyuas cov txheej txheem, txhim kho qhov teeb meem thiab tswj cov teeb meem. Nrog kev pab ntawm rau-sigma, ib qho kev tsim kho vaj tse ntawm cov neeg txawj ntse, nyob rau hauv txoj kev tswj kom zoo, tuaj yeem tsim kho. Rau kev siv ntawm rau-sigma, cov ntaub ntawv txheej txheem yuav tsum tau ua, yog li raws li cov ntaub ntawv no qee qhov kev hloov pauv zoo tuaj yeem coj los txhim kho cov txheej txheem. Muaj peb lub tswv yim nyob rau hauv six-sigma. Qhov thib ib yog DMAIC, qhov thib ob yog DMADV thiab qhov thib peb yog Lean.
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Lean vs. Six Sigma • Lean tsom mus rau kev tshem tawm cov khoom pov tseg thiab kev ua haujlwm tsis zoo, thaum muaj rau-sigma tshem tawm kev hloov pauv hauv cov txheej txheem. • Lean yog txheej txheem ntawm kev txhim kho cov txheej txheem. Ntawm qhov tod tes, rau-sigma yog lub tswv yim ntawm kev khiav cov txheej txheem hauv streamline. • Lub hom phiaj ntawm lean yog los txhawb kev tsim khoom los ntawm kev ua kom muaj txiaj ntsig ntawm cov txheej txheem. Ntawm qhov tsis sib xws, rau-sigma txhais thiab ua tiav cov neeg siv khoom xav tau. • Lean deals nrog khiav kev teeb tsa, thaum rau-sigma deals nrog cov khoom zoo. • Cov cuab yeej Lean yog qhov pom kev zoo li Microsoft Visio; Txawm li cas los xij, cov cuab yeej rau-sigma yog lej thiab kev txheeb cais. • Lean yog cov txheej txheem tas mus li thiab ua txhua hnub, thaum rau-sigma tsis yog vim nws txoj kev xav ntawm kev txo cov txheej txheem hloov pauv |
Zaj lus
Tsis muaj kev ntseeg, lean yog raws li pov tseg thiab cov txheej txheem tsim khoom thiab lub hom phiaj ntawm rau-sigma yog kev ua tiav ntawm cov khoom. Txawm li cas los xij, nws yog qhov tseeb tias nws tsis tuaj yeem tsim cov txheej txheem thiab thaum kawg kev lag luam yam tsis muaj kev sib npaug ntawm ob qho tib si cov tswv yim, vim tias lub hom phiaj ntawm ob txoj hauv kev yog tib yam uas yog kev lag luam muaj txiaj ntsig.
