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Hình 2.4: K{QJJLDQOjPYL FEuQKWK˱ͥQJYjFFÿ̩LNKLQJ͛LOjPYL F [4] x 9ӏ WUt F{QJ Fө Yj YұW OLӋX SKҧL ÿѭӧF ÿһW WURQJ YQJ OjP YLӋF EuQK WKѭӡQJQKѭKuQK x &ӕÿӏQKYӏWUtFiFF{QJFөYjYұWOLӋXFKRSKpSWKHRWUuQKWӵWӕWQKҩW x 6ӱGөQJQKӳQJWKQJWUӑQJWkPYjVӵSKkQSKӕLUѫLÿӇJLҧPWKӡLJLDQ YұQFKX\ӇQ
1JX\rQOêWKLӃWNӃF{QJYLӋFPi\YjWKLӃWEӏ x 7KӵFKLӋQNӃWKӧSQKLӅXF{QJÿRҥQJLDF{QJEҵQJFiFKVӱGөQJKDL KD\QKLӅXJLDRFҳWKD\Eӕ WUtÿӗQJWKӡLJLDF{QJWӯKDLWKLӃWEӏ x %ӕWUtWҩWFҧFiFWKLӃWEӏÿLӅXNKLӇQÿӇF{QJQKkQFyNKҧQăQJÿӃQJҫQ KD\GQJVӭFWURQJNKҧQăQJWӕWQKҩW x 6ӱGөQJÿӗJiNҽSWKD\FKRWD\JLӳWKLӃWEӏ x 6ӱGөQJÿqQFKӍGүQÿӇKҥQFKӃVDLVyWFӫDF{QJQKkQ x 7UѭQJEj\QKӳQJWK{QJWLQFKӍGүQSKKӧS x 6ӱGөQJWtQKLӋXkPWKDQKFҧQKEiR x 6ӱGөQJFiFFKӍÿӏQK[~FJLiFQKѭKuQKGiQJFKӳYjPmNtFKWKѭӟF x 6ӱGөQJFiFWKXӝFWtQKÿLӅXNKLӇQYӅNtFKWKѭӟFGLFKX\ӇQYjÿLӋQWUӣ x ĈҧPEҧRVӵWKtFKKӧSFӫDFiFWKXӝFWtQKJLӳDFiFÿLӅXNKLӇQYjPjQKuQKFKӍWKӏ
CHU TRÌNH DMAIC
Define
*LDLÿRҥn njy cy nghƭa lj xiFÿӏnh chtnh xiFÿӕLWѭӧng vj cic nӝi dung liên quan ÿӃn ÿӕLWѭӧQJÿy bao gӗm mөc tiêu, qui trunh vұn hjnh bên trong, cic mӕi quan hӋ liên quan tӟi khich hjng vj nhj cung ӭng
CiFEѭӟc nӝi dung cy trong giai ÿRҥn njy:
- Xic ÿӏnh phҥm vi: sҧn phҭm, quy trunh, khich hjng, nhj cung ӭQJÿӕi thӫ cҥnh tranh,ô
- XiFÿӏnh tiӃng nói khách hàng VOC ± Voice of Customer
- Công cө sӱ dөng: Histogram, Pareto chart, SIPOC.
Measure
*LDLÿRҥn njy lj ÿROѭӡng cic hoҥt ÿӝng cӫa mӝt tә chӭc thông qua ciFWKDQJÿR trong tә chӭc vj dӵa trên ciFWKDQJÿRQD\ÿӇ ÿinh gii hiӋu quҧ vұn hjnh cӫa tә chӭc ÿy Không hӅ cy mӝt chuҭn njo cho bӝ cic WKDQJÿRFKRWә chӭc, mӝt vji tә chӭc cy cҧ hjnJWUăPWKDQJÿRPӝt vji thu chӍ ch~ trӑnJÿӃQVӕtWWKDQJÿRTXDQWUӑng
Cic Eѭӟc nӝi dung cy tURQJJLDLÿRҥn njy:
- HoҥFKÿӏnh thu thұp sӕ liӋu
- KiӇm WUDÿӝ tin cұy hӋ thӕQJÿROѭӡng
- Ĉinh gii năQJOӵc hiӋn tҥi cӫa qui trunh
Công cө sӱ dөQJPӭFÿӝࢽFKӍVӕQăQJOӵFTXiWUuQKELӇXÿӗ3areto.
Analyze
Mөc tiêu cӫDJLDLÿRҥn phân ttch lj xem xpt WKDQJÿRFy ph hӧSÿӇ ÿinh gia hiӋu quҧ vұn hjQKKD\NK{QJÿinh gii mӭFÿӝ WѭѫQJTXDQJLӳa ciFWKDQJÿRWKDQJÿRQjo ҧnKKѭӣng nhiӅu tӟi hiӋu quҧ vұn hjnh cӫa tә chӭc, mӭFÿӝ cҧi thiӋn hiӋu quҧ vұn hjnh cӫa tә chӭc nӃXWKDQJÿRҩ\ÿѭӧc cҧi thiӋn
Cic nӝi dung cy WURQJJLDLÿRҥn njy:
- Phân ttch mӭc ÿӝ tѭѫQJTXDQJLӳa ciFWKDQJÿRÿҫu vjRÿҫu ra
- Phân ttcKQăQJOӵc qui trunh hiӋn tҥI
- Xic ÿӏnh yӃu tӕ ҧQKKѭӣnJÿӃn vҩQÿӅ
- Lӵa chӑn yӃu tӕ ҧnKKѭӣng nhiӅu tӟi vҩn ÿӅ
- KiӇm chӭng bҵng thӕng kê
Công cө sӱ dөng: BiӅXÿӗ xѭѫQJFi, Pareto, phân ttFKWѭѫQJTXDQNLӇPÿӏnh giҧ thiӃt thӕng kê.
Improve
Dӵa vjo nhӳng phân ttch thӕQJNrÿѭӧc thӵc hiӋn tҥLEѭӟc phân ttch, ta tiӃp tөc ÿѭDUDJLҧi phip nhҵm giҧi quyӃt cic nguyên nhân gӕc rӉ, thӵc hiӋQÿinh gii cic giҧi phip khҧ dƭ vj thiӃt kӃ thӵc nghiӋPÿӇ chӭng tӓ ÿӝ hiӋu quҧ cӫa giҧi phip ÿӇ cy thӇ loҥi bӓ biӃQÿӝng
Cic nӝi dung cy WURQJJLDLÿRҥn njy:
- ThiӃt kӃ thӵc nghiӋm, tӕLѭXKya quy trunh
- ThiӃt kӃ giҧi phip trong thӵc tӃ
Công cө sӱ dөng: thiӃt kӃ thӵc nghiӋm, cân bҵng chuyӅn, Kaizen, 5S.
Control
*LDLÿRҥn njy sӁ kiӇm soit ciFGDRÿӝQJÿӇ ÿҧm bҧo rҵng không cy sӵ biӃQÿӝng qui mӭc cho phpp dүQÿӃn KѭKӓQJ*LDLÿRҥn njy ӭng dөng nhiӅu hӋ thӕng kiӇm soit vj quy trunh kiӇm soit bҵng thӕnJNrÿӇ duy tru ciFGDRÿӝng trong mӭc cho phpp Qui trunh kiӇm soit thӵc hiӋn lһp lҥi liên tөc cho tӟi khi mӭc chҩWOѭӧnJÿm ÿҥWQKѭPRQJ muӕn
Cic nӝi dung cy tURQJJLDLÿRҥn njy:
- Hojn thiӋn hӋ thӕQJÿROѭӡng
- ThiӃt kӃ hӋ thӕng kiӇm soit
- KiӇm chӭnJQăQJOӵc dji hҥn cӫa FKѭѫQJWUunh
- ĈѭDYLӋc kiӇm soit quy trunh vjo thӵc tӃ
Cụng cө sӱ dөng: KӃ hoҥch kiӇm soitOѭXÿӗ quy trunh, SOP, check sheet, ô
7KLӃWNӃWKӵFQJKLӋPOjPӝWWURQJQKӳQJF{QJFөQJKLrQFӭXVӵҧQKKѭӣQJFӫDFiF
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7KLӃWNӃWKӵF QJKLӋPEDRJӗPFiFJLDLÿRҥQ>]:
*LDLÿRҥQ7KҧROXұQFiF\ӃXWӕÿҫXYjRNKҧWKL
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KD\QKӳQJQJѭӡLF{QJQKkQWUӵFWLӃSOjPYLӋFWURQJWUҥPÿӇFyFiLQKuQÿҫ\ÿӫQKҩWYӅ FiF\ӃXWӕҧQKKѭӣQJ
1JѭӡLYұQKjQKWLӃQKjQKWtQKWRiQYjÿѭDUDVӕWKtQJKLӋPFҫQWKLӃWFKRYLӋFWKӵF QJKLӋP GӵDYjRVӕOѭӧQJ\ӃXWӕÿҫXYjRYjFiFJLiWUӏWѭѫQJӭQJFӫDPӛL\ӃXWӕ&y WKӇOӵDFKӑQVӕOҫQOҩ\PүXÿӕLYӟLPӛLWKtQJKLӋPÿӇWăQJWtQKFKtQK[iFFӫDWKӵF QJKLӋP7X\QKLrQVӕOҫQQj\WKѭӡQJNK{QJTXiOӟQYuVӕWKtQJKLӋPFҫQWKӵFKLӋQ WKѭӡQJQKLӅX
*LDLÿRҥQ7KXWKұSGӳOLӋXWKӵFQJKLӋPӭQJYӟLWӯQJJLiWUӏFӫDFiF\ӃXWӕ
'ӵDWUrQNӃWTXҧFyÿѭӧFWӯYLrFOӵDFKӑQWKӵFQJKLӋPQJѭӡLYұQKjQKWLӃQKjQK WKXWKұSGӳOLӋXFiFWKtQJKLӋPWѭѫQJӭQJ1rQVҳS[ӃSOҥLEӝGӳOLӋXÿӇGӉGjQJFKR JLDLÿRҥQVDu
*LDLÿRҥQ3KkQWtFKWKLӃWNӃWKӵFQJKLӋP
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7Uѭӟc cҧi tiӃn Sau cҧi tiӃn FҧLWLӃQ Lead time 749 phút 637 phút 14,95%
S.M Uddin and C.M.L Rahman, Minimization of Decfects in the Sewing Section of a Garment Factory through DMAIC Methodology of Six Sigma
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Martin Pech, Drahos Vanecek, Lean manuafacturing method to improve quality (2018) ÈSGөQJFiF F{QJFө FӫD/HDQ0DQXDIDFWXULQJFҫQÿѭӧFWKӵFKLӋQOLrQWLӃSYj WѭѫQJWUӧYӟLQKDXQKѭ-XVW- in-7LPH$%&.DQEDQ6$QGRQYj7407ҩWFҧFiF WKjQKYLrQFӫDPӝWWәFKӭFEDRJӗPFҧTXҧQOêWKDPJLDYjRYLӋFFҧLWLӃQOLrQWөFFiF TX\WUuQKVҧQSKҭPYjGӏFKYөÿӇÿҥWÿѭӧFWKjQKF{QJWK{QJTXDVӵKjLOzQJFӫDNKiFK hàng
Six Sigma ± A New Direction to Quality and Productivity Management
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&K˱˯QJÿmWUuQKEj\F˯VͧOêWKX\͇WOLrQTXDQWͣLÿ͉WjL³ͰQJ'ͭQJ/HDQ± Six Sigma
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3.1 THÔNG TIN CHUNG Vӄ CÔNG TY
Hình 3.1: &{QJW\0D\7KrX7KX̵Q3K˱˯QJ ắ Tờn cụng ty: &é1*7