{"id":6593,"date":"2023-11-29T23:36:31","date_gmt":"2023-11-29T23:36:31","guid":{"rendered":"https:\/\/masterskills.org\/blog\/?p=6593"},"modified":"2023-12-21T13:19:10","modified_gmt":"2023-12-21T06:19:10","slug":"cong-cu-thong-ke-trong-quan-ly-chat-luong","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/cong-cu-thong-ke-trong-quan-ly-chat-luong.html","title":{"rendered":"C\u00f4ng C\u1ee5 Th\u1ed1ng K\u00ea Trong Qu\u1ea3n L\u00fd Ch\u1ea5t L\u01b0\u1ee3ng"},"content":{"rendered":"

C\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea trong qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng\u00a0 l\u00e0 g\u00ec?Sau chi\u1ebfn tranh th\u1ebf gi\u1edbi th\u1ee9 hai, n\u01b0\u1edbc Nh\u1eadt ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi mu\u00f4n v\u00e0n kh\u00f3 kh\u0103n. Hi\u1ec7p h\u1ed9i c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 k\u1ef9 s\u01b0 Nh\u1eadt B\u1ea3n (JUSE, Japanese Union Of Scientists and Engineers) \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh ch\u1ecdn v\u00e0 \u1ee9ng d\u1ee5ng c\u00e1c\u00a0c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea\u00a0trong ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng cho m\u1ecdi t\u1ea7ng l\u1edbp c\u00e1n b\u1ed9 Nh\u1eadt. T\u1eeb \u0111\u00f3 vi\u1ec7c \u00e1p d\u1ee5ng ch\u00fang ng\u00e0y c\u00e0ng r\u1ed9ng r\u00e3i v\u00e0 ph\u1ed5 bi\u1ebfn tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi. \u0110\u1eb7c bi\u1ec7t l\u00e0 \u1edf Ch\u00e2u \u00c2u v\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi t\u1eaft l\u00e0\u00a0Seven Tools\u00a0.<\/em><\/p>\n

7 C\u00d4NG C\u1ee4 TH\u1ed0NG K\u00ca TRONG QU\u1ea2N L\u00dd CH\u1ea4T L\u01af\u1ee2NG<\/strong>.<\/h5>\n

C\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng, vi\u1ec7c c\u1ea3i ti\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd kh\u00f4ng c\u00f3 hi\u1ec7u qu\u1ea3 nh\u01b0 mong mu\u1ed1n n\u1ebfu kh\u00f4ng \u00e1p d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea. Th\u1ebf nh\u01b0ng, c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea c\u00f3 t\u1edbi h\u00e0ng tr\u0103m c\u00f4ng c\u1ee5 th\u00ec vi\u1ec7c \u00e1p d\u1ee5ng c\u00f4ng c\u1ee5 n\u00e0o l\u00e0 ph\u00f9 h\u1ee3p v\u00e0 mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao nh\u1ea5t cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00ednh doanh nghi\u1ec7p.<\/p>\n

Qua s\u1ef1 chia s\u1ebb c\u1ee7a c\u00e1c chuy\u00ean gia ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y. Ch\u1ec9 c\u1ea7n \u00e1p d\u1ee5ng 7 c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea<\/strong>\u00a0sau c\u0169ng c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng th\u01b0\u1eddng g\u1eb7p trong ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t c\u0169ng nh\u01b0 d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng c\u1ee7a doanh nghi\u1ec7p. C\u00e1c c\u00f4ng c\u1ee5 \u0111\u00f3 bao g\u1ed3m:<\/p>\n

    \n
  • Phi\u1ebfu ki\u1ec3m so\u00e1t (Check sheets)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 (Charts.)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3 (Cause & Effect Diagram)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 Pareto (Pareto chart)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 m\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1 (Histogram)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n (Scatter Diagram)<\/li>\n
  • Bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t (Control Chart)<\/li>\n<\/ul>\n

    Trong 7 c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea ch\u1ec9 duy nh\u1ea5t Bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3 (Cause & Effect Diagram) l\u00e0 do ng\u00e0i Ishikawa s\u00e1ng ch\u1ebf v\u00e0o th\u1eadp ni\u00ean 50. Phi\u1ebfu ki\u1ec3m so\u00e1t (check sheets) \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1eeb chi\u1ebfn tranh th\u1ebf gi\u1edbi th\u1ee9 2. Bi\u1ec3u \u0111\u1ed3 Pareto v\u00e0 Bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t (Control Chart) th\u00ec t\u1eeb \u0111\u1ea7u th\u1ebf k\u1ef7 20. C\u00f2n l\u1ea1i nh\u1eefng c\u00f4ng c\u1ee5 kh\u00e1c th\u00ec kh\u00f4ng ai bi\u1ebft \u0111\u00e3 c\u00f3 t\u1eeb khi n\u00e0o. H\u1ecd ch\u1ec9 t\u1eadp h\u1ee3p l\u1ea1i nghi\u00ean c\u1ee9u v\u00e0 \u00e1p d\u1ee5ng ch\u00fang.<\/p>\n

      \n
    1. \n
      N\u1ed8I DUNG C\u00c1C C\u00d4NG C\u1ee4<\/strong><\/h5>\n<\/li>\n
    2. Phi\u1ebfu ki\u1ec3m so\u00e1t (check sheets)<\/strong>
      \n1.1. Gi\u1edbi thi\u1ec7u v\u1ec1 phi\u1ebfu ki\u1ec3m tra<\/strong><\/li>\n<\/ol>\n

      Phi\u1ebfu ki\u1ec3m tra l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u. C\u00f3 th\u1ec3 l\u00e0 h\u1ed3 s\u01a1 c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng trong qu\u00e1 kh\u1ee9. C\u0169ng c\u00f3 th\u1ec3 l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n theo d\u00f5i cho ph\u00e9p b\u1ea1n th\u1ea5y \u0111\u01b0\u1ee3c xu h\u01b0\u1edbng ho\u1eb7c h\u00ecnh m\u1eabu m\u1ed9t c\u00e1ch kh\u00e1ch quan. \u0110\u00e2y l\u00e0 m\u1ed9t d\u1ea1ng l\u01b0u tr\u1eef \u0111\u01a1n gi\u1ea3n m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1ee9 t\u1ef1 \u01b0u ti\u00ean c\u1ee7a s\u1ef1 ki\u1ec7n.<\/p>\n

      PHI\u1ebeU KI\u1ec2M SO\u00c1T TH\u01af\u1edcNG \u0110\u01af\u1ee2C S\u1eec D\u1ee4NG \u0110\u1ec2:<\/h6>\n

      \u2013 Ki\u1ec3m tra s\u1ef1 ph\u00e2n b\u1ed1 s\u1ed1 li\u1ec7u c\u1ee7a m\u1ed9t ch\u1ec9 ti\u00eau c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t<\/p>\n

      \u2013 Ki\u1ec3m tra c\u00e1c d\u1ea1ng khuy\u1ebft t\u1eadt<\/p>\n

      \u2013 Ki\u1ec3m tra v\u1ecb tr\u00ed c\u00e1c khuy\u1ebft t\u1eadt<\/p>\n

      \u2013 Ki\u1ec3m tra c\u00e1c ngu\u1ed3n g\u1ed1c g\u00e2y ra khuy\u1ebft t\u1eadt c\u1ee7a s\u1ea3n ph\u1ea9m<\/p>\n

      \u2013 Ki\u1ec3m tra x\u00e1c nh\u1eadn c\u00f4ng vi\u1ec7c<\/p>\n

      Th\u01b0\u1eddng th\u00ec, Phi\u1ebfu ki\u1ec3m tra s\u1ebd theo d\u00f5i s\u1ef1 ki\u1ec7n theo th\u1eddi gian nh\u01b0ng c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 theo d\u00f5i s\u1ed1 l\u01b0\u1ee3ng s\u1ef1 ki\u1ec7n theo v\u1ecb tr\u00ed. Sau \u0111\u00f3, d\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ea7u v\u00e0o c\u1ee7a Bi\u1ec3u \u0111\u1ed3 t\u1eadp trung, Bi\u1ec3u \u0111\u1ed3 Pareto\u2026 V\u00ed d\u1ee5 v\u1ec1 c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea7n theo d\u00f5i c\u00f3 th\u1ec3 l\u00e0: s\u1ed1 l\u1ea7n tr\u00e0n \u0111\u1ed5\/th\u00e1ng, cu\u1ed9c g\u1ecdi b\u1ea3o d\u01b0\u1ee1ng s\u1eeda ch\u1eefa \/tu\u1ea7n, r\u00e1c th\u1ea3i nguy h\u1ea1i thu \u0111\u01b0\u1ee3c\/gi\u1edd l\u00e0m vi\u1ec7c, v.v\u2026<\/p>\n

        \n
      1. \n
        Bi\u1ec3u \u0111\u1ed3 (Charts)<\/strong><\/h5>\n

        2.1. Gi\u1edbi thi\u1ec7u v\u1ec1 Bi\u1ec3u \u0111\u1ed3<\/strong><\/li>\n<\/ol>\n

        Bi\u1ec3u \u0111\u1ed3 l\u00e0 h\u00ecnh v\u1ebd th\u1ec3 hi\u1ec7n m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa c\u00e1c s\u1ed1 li\u1ec7u ho\u1eb7c c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng.<\/p>\n

        Bi\u1ec3u \u0111\u1ed3 d\u00f9ng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a d\u1eef li\u1ec7u \u0111\u1ec3 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft v\u1ea5n \u0111\u1ec1 b\u1eb1ng m\u1eaft th\u01b0\u1eddng.<\/p>\n

        C\u00f3 r\u1ea5t nhi\u1ec1u d\u1ea1ng bi\u1ec3u \u0111\u1ed3. Bi\u1ec3u \u0111\u1ed3 \u0111\u01b0\u1eddng. Bi\u1ec3u \u0111\u1ed3 c\u1ed9t v\u00e0 \u0111\u01b0\u1eddng. Bi\u1ec3u \u0111\u1ed3 h\u00ecnh b\u00e1nh, bi\u1ec3u \u0111\u1ed3 d\u1ea1ng thanh. Bi\u1ec3u \u0111\u1ed3 Gantt chart, bi\u1ec3u \u0111\u1ed3 m\u1ea1ng nh\u1ec7n.<\/p>\n

          \n
        1. \n
          Bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3 (Cause & Effect Diagram)<\/strong><\/h5>\n

          3.1. Gi\u1edbi thi\u1ec7u v\u1ec1 bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3<\/strong><\/li>\n<\/ol>\n

          Bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3 \u0111\u01a1n gi\u1ea3n ch\u1ec9 l\u00e0 m\u1ed9t danh s\u00e1ch li\u1ec7t k\u00ea nh\u1eefng nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 c\u00f3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3. C\u00f4ng c\u1ee5 n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u00e0o n\u0103m 1953 t\u1ea1i Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Tokyo do gi\u00e1o s\u01b0 Kaoru Ishikawa ch\u1ee7 tr\u00ec. \u00d4ng \u0111\u00e3 d\u00f9ng bi\u1ec3u \u0111\u1ed3 n\u00e0y gi\u1ea3i th\u00edch cho c\u00e1c k\u1ef9 s\u01b0 t\u1ea1i nh\u00e0 m\u00e1y th\u00e9p Kawasaki v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp v\u00e0 th\u1ec3 hi\u1ec7n s\u1ef1 li\u00ean k\u1ebft v\u1edbi nhau. Do v\u1eady, bi\u1ec3u \u0111\u1ed3 nh\u00e2n qu\u1ea3 c\u00f2n g\u1ecdi l\u00e0 bi\u1ec3u \u0111\u1ed3 Ishikawa hay bi\u1ec3u \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1.<\/p>\n

          M\u1ee4C \u0110\u00cdCH.<\/strong><\/h6>\n

          L\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p nh\u1eb1m t\u00ecm ra nguy\u00ean nh\u00e2n c\u1ee7a m\u1ed9t v\u1ea5n \u0111\u1ec1. T\u1eeb \u0111\u00f3 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c d\u00f9ng nhi\u1ec1u nh\u1ea5t trong vi\u1ec7c t\u00ecm ki\u1ebfm nh\u1eefng nguy\u00ean nh\u00e2n, khuy\u1ebft t\u1eadt trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n

          C\u00f4ng c\u1ee5 n\u00e0y d\u00f9ng \u0111\u1ec3 nghi\u00ean c\u1ee9u, ph\u00f2ng ng\u1eeba nh\u1eefng m\u1ed1i nguy ti\u1ec1m \u1ea9n g\u00e2y n\u00ean vi\u1ec7c ho\u1ea1t \u0111\u1ed9ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 li\u00ean quan t\u1edbi m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o \u0111\u00f3. V\u00ed d\u1ee5 nh\u01b0 ph\u1ebf ph\u1ea9m, \u0111\u1eb7c tr\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng. \u0110\u1ed3ng th\u1eddi gi\u00fap ta n\u1eafm \u0111\u01b0\u1ee3c to\u00e0n c\u1ea3nh m\u1ed1i quan h\u1ec7 m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng. Ng\u01b0\u1eddi ta c\u00f2n g\u1ecdi bi\u1ec3u \u0111\u1ed3 n\u00e0y l\u00e0 bi\u1ec3u \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1, bi\u1ec3u \u0111\u1ed3 Ishikawa, hay ti\u1ebfng Nh\u1eadt l\u00e0 Tokuzei Yoin \u2013 bi\u1ec3u \u0111\u1ed3 \u0111\u1eb7c t\u00ednh\u2026<\/p>\n

          \u0110\u1eb7c tr\u01b0ng c\u1ee7a bi\u1ec3u \u0111\u1ed3 n\u00e0y l\u00e0 gi\u00fap ch\u00fang ta l\u00ean danh s\u00e1ch v\u00e0 x\u1ebfp lo\u1ea1i nh\u1eefng nguy\u00ean nh\u00e2n ti\u1ec1m \u1ea9n ch\u1ee9 kh\u00f4ng cho ta ph\u01b0\u01a1ng ph\u00e1p lo\u1ea1i tr\u1eeb n\u00f3.<\/p>\n

            \n
          1. \n
            Bi\u1ec3u \u0111\u1ed3 Pareto (Pareto Analysis)<\/strong><\/h5>\n

            4.1. Gi\u1edbi thi\u1ec7u v\u1ec1 Bi\u1ec3u \u0111\u1ed3 Pareto<\/strong><\/li>\n<\/ol>\n

            Bi\u1ec3u \u0111\u1ed3 Pareto (Pareto Analysis) l\u00e0 m\u1ed9t bi\u1ec3u \u0111\u1ed3 h\u00ecnh c\u1ed9t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n lo\u1ea1i c\u00e1c nguy\u00ean nh\u00e2n. V\u00e0 nh\u1eefng nh\u00e2n t\u1ed1 \u1ea3nh h\u01b0\u1edfng c\u00f3 t\u00ednh \u0111\u1ebfn t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang \u0111\u1ed1i v\u1edbi s\u1ea3n ph\u1ea9m. S\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 n\u00e0y gi\u00fap cho nh\u00e0 qu\u1ea3n l\u00fd bi\u1ebft \u0111\u01b0\u1ee3c nh\u1eefng nguy\u00ean nh\u00e2n c\u1ea7n ph\u1ea3i t\u1eadp trung x\u1eed l\u00fd . L\u01b0u \u00fd l\u00e0 c\u1ea7n s\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 Pareto \u0111\u1ec3 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n v\u00e0 chi ph\u00ed do c\u00e1c nguy\u00ean nh\u00e2n \u0111\u00f3 g\u00e2y ra.<\/p>\n

            M\u1ee4C \u0110\u00cdCH.<\/strong><\/h6>\n

            B\u00f3c t\u00e1ch nh\u1eefng nguy\u00ean nh\u00e2n quan tr\u1ecdng nh\u1ea5t ra kh\u1ecfi nh\u1eefng nguy\u00ean nh\u00e2n v\u1ee5n v\u1eb7t c\u1ee7a m\u1ed9t v\u1ea5n \u0111\u1ec1. \u0110\u1ed3ng th\u1eddi, nh\u1eadn bi\u1ebft v\u00e0 x\u00e1c \u0111\u1ecbnh \u01b0u ti\u00ean cho c\u00e1c v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t. Ngo\u00e0i ra bi\u1ec3u \u0111\u1ed3 Pareto c\u00f2n d\u00f9ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ea3i ti\u1ebfn.<\/p>\n

            \u00c1p d\u1ee5ng khi: Ph\u00e2n t\u00edch d\u1eef li\u1ec7u li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 quy\u1ebft \u0111\u1ecbnh y\u1ebfu t\u1ed1 n\u00e0o quan tr\u1ecdng nh\u1ea5t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 \u0111\u00f3.<\/p>\n

              \n
            • Bi\u1ec3u \u0111\u1ed3 Pareto th\u1ec3 hi\u1ec7n s\u1ed1 l\u01b0\u1ee3ng v\u00e0 t\u1ef7 l\u1ec7 % sai l\u1ed7i trong gia c\u00f4ng c\u01a1 kh\u00ed.<\/li>\n<\/ul>\n

              Ph\u00e2n t\u00edch pareto c\u0169ng r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh c\u1ea3i ti\u1ebfn. Do \u0111\u00f3, vi\u1ec7c th\u1ef1c hi\u1ec7n c\u1ea3i ti\u1ebfn c\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi nhi\u1ec1u c\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea.<\/p>\n

              Trong qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng, c\u0169ng th\u01b0\u1eddng nh\u1eadn th\u1ea5y r\u1eb1ng:<\/p>\n

                \n
              • 80% thi\u1ec7t h\u1ea1i v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng do 20% nguy\u00ean nh\u00e2n g\u00e2y n\u00ean.<\/li>\n
              • 20% nguy\u00ean nh\u00e2n g\u00e2y n\u00ean 80% l\u1ea7n x\u1ea3y ra t\u00ecnh tr\u1ea1ng kh\u00f4ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n
                  \n
                1. \n
                  Bi\u1ec3u \u0111\u1ed3 m\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1 (Histogram)<\/strong><\/h5>\n

                  5.1. Gi\u1edbi thi\u1ec7u v\u1ec1 bi\u1ec3u \u0111\u1ed3 m\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1<\/strong><\/li>\n<\/ol>\n

                  Bi\u1ec3u \u0111\u1ed3 m\u1eadt \u0111\u1ed9 ph\u00e2n b\u1ed1 l\u00e0 m\u1ed9t d\u1ea1ng bi\u1ec3u \u0111\u1ed3 c\u1ed9t \u0111\u01a1n gi\u1ea3n. N\u00f3 t\u1ed5ng h\u1ee3p c\u00e1c \u0111i\u1ec3m d\u1eef li\u1ec7u \u0111\u1ec3 th\u1ec3 hi\u1ec7n t\u1ea7n su\u1ea5t c\u1ee7a s\u1ef1 vi\u1ec7c.<\/p>\n

                  M\u1ee5c \u0111\u00edch:<\/strong>\u00a0S\u1eed d\u1ee5ng \u0111\u1ec3 theo d\u00f5i s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a s\u1ea3n ph\u1ea9m\/qu\u00e1 tr\u00ecnh. T\u1eeb \u0111\u00f3 \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c n\u0103ng l\u1ef1c c\u1ee7a qu\u00e1 tr\u00ecnh \u0111\u00f3. Qu\u00e1 tr\u00ecnh c\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u s\u1ea3n xu\u1ea5t s\u1ea3n ph\u1ea9m hay kh\u00f4ng? L\u00e0 bi\u1ec3u \u0111\u1ed3 c\u1ed9t th\u1ec3 hi\u1ec7n t\u1ea7n s\u1ed1 xu\u1ea5t hi\u1ec7n c\u1ee7a v\u1ea5n \u0111\u1ec1 . thu th\u1eadp qua phi\u1ebfu ki\u1ec3m tra.<\/p>\n

                  \u00c1p d\u1ee5ng: Ph\u00f2ng ng\u1eeba tr\u01b0\u1edbc khi v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 x\u1ea3y ra.<\/p>\n

                    \n
                  1. \n
                    Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n (Scatter Diagram)<\/strong><\/h5>\n

                    6.1. Gi\u1edbi thi\u1ec7u v\u1ec1 Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n<\/strong><\/li>\n<\/ol>\n

                    Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n (Scatter Diagram) \u0111\u00f3 l\u00e0 s\u1ef1 bi\u1ec3u di\u1ec5n d\u1eef li\u1ec7u b\u1eb1ng \u0111\u1ed3 th\u1ecb trong \u0111\u00f3 c\u00e1c gi\u00e1 tr\u1ecb quan s\u00e1t \u0111\u01b0\u1ee3c c\u1ee7a m\u1ed9t bi\u1ebfn \u0111\u01b0\u1ee3c v\u1ebd th\u00e0nh t\u1eebng \u0111i\u1ec3m so v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ebfn kia m\u00e0 kh\u00f4ng n\u1ed1i c\u00e1c \u0111i\u1ec3m \u0111\u00f3 l\u1ea1i v\u1edbi nhau b\u1eb1ng \u0111\u01b0\u1eddng n\u1ed1i. Bi\u1ec3u \u0111\u1ed3 ph\u00e2n t\u00e1n ch\u1ec9 ra m\u1ed1i quan h\u1ec7 gi\u1eefa 2 nh\u00e2n t\u1ed1.<\/p>\n

                    M\u1ee5c \u0111\u00edch:<\/strong>\u00a0\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u b\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch \u0111\u1ecbnh l\u01b0\u1ee3ng m\u1ed1i quan h\u1ec7 nh\u00e2n qu\u1ea3 gi\u1eefa c\u00e1c bi\u1ebfn s\u1ed1 c\u1ee7a 2 nh\u00e2n t\u1ed1 n\u00e0y.<\/p>\n

                    D\u1ef1a v\u00e0o vi\u1ec7c ph\u00e2n t\u00edch bi\u1ec3u \u0111\u1ed3 c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c nh\u00e2n t\u1ed1 n\u00e0y ph\u1ee5 thu\u1ed9c nh\u01b0 th\u1ebf n\u00e0o v\u00e0o m\u1ed9t nh\u00e2n t\u1ed1 kh\u00e1c v\u00e0 m\u1ee9c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c gi\u1eefa ch\u00fang.<\/p>\n

                      \n
                    1. \n
                      Bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t (Control Chart)<\/strong><\/h5>\n

                      7.1. Gi\u1edbi thi\u1ec7u v\u1ec1 bi\u1ec3u \u0111\u1ed3 ki\u1ec3m so\u00e1t<\/strong><\/li>\n<\/ol>\n

                      L\u00e0 m\u1ed9t bi\u1ec3u \u0111\u1ed3 v\u1edbi c\u00e1c \u0111\u01b0\u1eddng gi\u1edbi h\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p th\u1ed1ng k\u00ea. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1eb1m m\u1ee5c \u0111\u00edch theo d\u00f5i s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 v\u1ec1 \u0111\u1eb7c t\u00ednh ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a s\u1ea3n ph\u1ea9m. Theo d\u00f5i nh\u1eefng thay \u0111\u1ed5i c\u1ee7a quy tr\u00ecnh. \u0110\u1ec3 ki\u1ec3m so\u00e1t t\u1ea5t c\u1ea3 c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng x\u1ea3y ra khi c\u00f3 d\u1ea5u hi\u1ec7u \u0111i l\u00ean ho\u1eb7c \u0111i xu\u1ed1ng c\u1ee7a bi\u1ec3u \u0111\u1ed3.<\/p>\n

                      M\u1ee5c \u0111\u00edch:<\/strong>\u00a0Ph\u00e1t hi\u1ec7n t\u00ecnh hu\u1ed1ng b\u1ea5t th\u01b0\u1eddng x\u1ea3y ra trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"

                      C\u00f4ng c\u1ee5 th\u1ed1ng k\u00ea trong qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng\u00a0 l\u00e0 g\u00ec?Sau chi\u1ebfn tranh th\u1ebf gi\u1edbi th\u1ee9 hai, n\u01b0\u1edbc Nh\u1eadt ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi mu\u00f4n v\u00e0n kh\u00f3 kh\u0103n. Hi\u1ec7p h\u1ed9i c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 k\u1ef9 s\u01b0 Nh\u1eadt B\u1ea3n (JUSE, Japanese Union Of Scientists and Engineers) \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh ch\u1ecdn v\u00e0 \u1ee9ng d\u1ee5ng c\u00e1c\u00a0c\u00f4ng c\u1ee5 th\u1ed1ng […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[220,227],"tags":[274],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/6593"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=6593"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/6593\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=6593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=6593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=6593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}