{"id":651,"date":"2026-03-29T12:37:25","date_gmt":"2026-03-29T12:37:25","guid":{"rendered":"https:\/\/www.visualize-ai.com\/vi\/state-diagram-symbols-states-explained\/"},"modified":"2026-03-29T12:37:25","modified_gmt":"2026-03-29T12:37:25","slug":"state-diagram-symbols-states-explained","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/vi\/state-diagram-symbols-states-explained\/","title":{"rendered":"Ph\u00e2n t\u00edch c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: C\u00e1c k\u00fd hi\u1ec7u, m\u0169i t\u00ean v\u00e0 tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch"},"content":{"rendered":"

S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i trong khu\u00f4n kh\u1ed5 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML), \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5 quan tr\u1ecdng \u0111\u1ec3 tr\u1ef1c quan h\u00f3a h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng. Kh\u00e1c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac t\u0129nh th\u1ec3 hi\u1ec7n c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c, s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i t\u1eadp trung v\u00e0o vi\u1ec7c m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c h\u1ec7 th\u1ed1ng c\u1ee5 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1eeb m\u1ed9t tr\u1ea1ng th\u00e1i n\u00e0y sang tr\u1ea1ng th\u00e1i kh\u00e1c ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c s\u1ef1 ki\u1ec7n. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn s\u00e2u s\u1eafc v\u1ec1 c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y, \u0111\u1ea3m b\u1ea3o s\u1ef1 r\u00f5 r\u00e0ng v\u1ec1 m\u1ecdi k\u00fd hi\u1ec7u, m\u0169i t\u00ean v\u00e0 lo\u1ea1i tr\u1ea1ng th\u00e1i tham gia v\u00e0o qu\u00e1 tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n

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\"Chalkboard-style<\/figure>\n<\/div>\n

\ud83d\udd0d Hi\u1ec3u r\u00f5 kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i<\/h2>\n

Tr\u01b0\u1edbc khi ph\u00e2n t\u00edch c\u00e1c k\u00fd hi\u1ec7u c\u1ee5 th\u1ec3, \u0111i\u1ec1u thi\u1ebft y\u1ebfu l\u00e0 hi\u1ec3u r\u00f5 m\u1ee5c \u0111\u00edch c\u1ed1t l\u00f5i c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i. N\u00f3 m\u00f4 h\u00ecnh h\u00f3a v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ec1u t\u1ed3n t\u1ea1i \u1edf m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ea1i b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o. M\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111i\u1ec1u ki\u1ec7n trong v\u00f2ng \u0111\u1eddi c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng, n\u01a1i \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3 th\u1ecfa m\u00e3n m\u1ed9t \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh, th\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng n\u00e0o \u0111\u00f3 ho\u1eb7c ch\u1edd \u0111\u1ee3i m\u1ed9t s\u1ef1 ki\u1ec7n n\u00e0o \u0111\u00f3. S\u1ef1 di chuy\u1ec3n gi\u1eefa c\u00e1c tr\u1ea1ng th\u00e1i n\u00e0y \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi c\u00e1c chuy\u1ec3n ti\u1ebfp.<\/p>\n

    \n
  • Tr\u1ea1ng th\u00e1i:<\/strong> M\u1ed9t \u0111i\u1ec1u ki\u1ec7n ho\u1eb7c t\u00ecnh hu\u1ed1ng ri\u00eang bi\u1ec7t trong v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
  • Chuy\u1ec3n ti\u1ebfp:<\/strong> M\u1ed9t m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c tr\u1ea1ng th\u00e1i cho th\u1ea5y r\u1eb1ng m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u1edf tr\u1ea1ng th\u00e1i \u0111\u1ea7u ti\u00ean s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 khi nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/li>\n
  • S\u1ef1 ki\u1ec7n:<\/strong> \u0110i\u1ec1u g\u00ec \u0111\u00f3 x\u1ea3y ra t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3, g\u00e2y ra m\u1ed9t chuy\u1ec3n ti\u1ebfp.<\/li>\n
  • H\u00e0nh \u0111\u1ed9ng:<\/strong> M\u1ed9t ph\u00e9p t\u00ednh ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng x\u1ea3y ra trong qu\u00e1 tr\u00ecnh chuy\u1ec3n ti\u1ebfp ho\u1eb7c trong m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n<\/ul>\n

    B\u1eb1ng c\u00e1ch l\u1eadp b\u1ea3n \u0111\u1ed3 c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 ph\u00e2n t\u00edch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n h\u00e0nh vi h\u1ec7 th\u1ed1ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau, x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ecnh hu\u1ed1ng ch\u1ebft m\u00e1y ti\u1ec1m \u1ea9n v\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ecdi t\u00ecnh hu\u1ed1ng kh\u1ea3 d\u0129 \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn.<\/p>\n

    \ud83d\udfe6 1. Tr\u1ea1ng th\u00e1i: N\u1ec1n t\u1ea3ng c\u1ee7a h\u00e0nh vi<\/h2>\n

    Tr\u1ea1ng th\u00e1i l\u00e0 kh\u1ed1i x\u00e2y d\u1ef1ng trung t\u00e2m c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i. V\u1ec1 m\u1eb7t tr\u1ef1c quan, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng h\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n. B\u00ean trong h\u1ed9p, b\u1ea1n s\u1ebd t\u00ecm th\u1ea5y t\u00ean tr\u1ea1ng th\u00e1i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c theo sau b\u1edfi danh s\u00e1ch c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u1ed9i b\u1ed9.<\/p>\n

    C\u00e1c tr\u1ea1ng th\u00e1i \u0111\u01a1n gi\u1ea3n<\/h3>\n

    M\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u01a1n gi\u1ea3n \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111i\u1ec1u ki\u1ec7n duy nh\u1ea5t, kh\u00f4ng th\u1ec3 chia nh\u1ecf. N\u00f3 kh\u00f4ng ch\u1ee9a c\u1ea5u tr\u00fac n\u1ed9i b\u1ed9 n\u00e0o. V\u00ed d\u1ee5, trong h\u1ec7 th\u1ed1ng \u0111\u0103ng nh\u1eadp, \u201c\u0110\u00e3 \u0111\u0103ng xu\u1ea5t\u201d l\u00e0 m\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u01a1n gi\u1ea3n. Khi h\u1ec7 th\u1ed1ng \u1edf tr\u1ea1ng th\u00e1i n\u00e0y, n\u00f3 \u0111ang ch\u1edd m\u1ed9t \u0111\u1ea7u v\u00e0o c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t n\u1ed7 l\u1ef1c \u0111\u0103ng nh\u1eadp.<\/p>\n

      \n
    • Bi\u1ec3u di\u1ec5n tr\u1ef1c quan:<\/strong>H\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n.<\/li>\n
    • N\u1ed9i dung:<\/strong>T\u00ean tr\u1ea1ng th\u00e1i v\u00e0 c\u00f3 th\u1ec3 l\u00e0 danh s\u00e1ch c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0o, ra ho\u1eb7c th\u1ef1c hi\u1ec7n.<\/li>\n
    • C\u00e1ch s\u1eed d\u1ee5ng:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u01a1 b\u1ea3n m\u00e0 kh\u00f4ng c\u1ea7n ph\u00e2n t\u00edch s\u00e2u h\u01a1n.<\/li>\n<\/ul>\n

      C\u00e1c tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh<\/h3>\n

      C\u00e1c h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p th\u01b0\u1eddng y\u00eau c\u1ea7u c\u00e1c tr\u1ea1ng th\u00e1i c\u00f3 c\u1ea5u tr\u00fac n\u1ed9i b\u1ed9. M\u1ed9t tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh l\u00e0 tr\u1ea1ng th\u00e1i ch\u1ee9a c\u00e1c tr\u1ea1ng th\u00e1i kh\u00e1c, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c tr\u1ea1ng th\u00e1i con. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p m\u00f4 h\u00ecnh h\u00f3a theo c\u1ea5p b\u1eadc, n\u01a1i m\u1ed9t tr\u1ea1ng th\u00e1i c\u1ea5p cao \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch th\u00e0nh c\u00e1c h\u00e0nh vi c\u1ea5p th\u1ea5p h\u01a1n.<\/p>\n

        \n
      • Bi\u1ec3u di\u1ec5n tr\u1ef1c quan:<\/strong>H\u00ecnh ch\u1eef nh\u1eadt tr\u00f2n c\u00f3 thanh ti\u00eau \u0111\u1ec1 v\u00e0 m\u1ed9t ph\u1ea7n b\u00ean trong.<\/li>\n
      • L\u1ee3i \u00edch:<\/strong>Gi\u1ea3m s\u1ef1 l\u1ed9n x\u1ed9n trong s\u01a1 \u0111\u1ed3 b\u1eb1ng c\u00e1ch nh\u00f3m c\u00e1c h\u00e0nh vi li\u00ean quan l\u1ea1i v\u1edbi nhau.<\/li>\n
      • V\u00e0o\/Ra:<\/strong>C\u00e1c tr\u1ea1ng th\u00e1i h\u1ee3p c\u00f3 th\u1ec3 c\u00f3 c\u00e1c \u0111i\u1ec3m v\u00e0o v\u00e0 ra, k\u00edch ho\u1ea1t c\u00e1c h\u00e0nh \u0111\u1ed9ng tr\u01b0\u1edbc ho\u1eb7c sau khi c\u00e1c tr\u1ea1ng th\u00e1i con b\u00ean trong \u0111\u01b0\u1ee3c x\u1eed l\u00fd.<\/li>\n<\/ul>\n

        \u2194\ufe0f 2. Chuy\u1ec3n ti\u1ebfp: C\u00e1c m\u0169i t\u00ean c\u1ee7a s\u1ef1 thay \u0111\u1ed5i<\/h2>\n

        C\u00e1c chuy\u1ec3n ti\u1ebfp x\u00e1c \u0111\u1ecbnh c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng di chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i n\u00e0y sang tr\u1ea1ng th\u00e1i kh\u00e1c. Ch\u00fang l\u00e0 c\u00e1c \u0111\u01b0\u1eddng h\u01b0\u1edbng k\u1ebft n\u1ed1i c\u00e1c tr\u1ea1ng th\u00e1i. Kh\u00f4ng c\u00f3 c\u00e1c chuy\u1ec3n ti\u1ebfp, s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i s\u1ebd t\u0129nh v\u00e0 kh\u00f4ng th\u1ec3 bi\u1ec3u di\u1ec5n h\u00e0nh vi.<\/p>\n

        H\u01b0\u1edbng v\u00e0 lu\u1ed3ng<\/h3>\n
          \n
        • \u0110\u1ea7u m\u0169i t\u00ean:<\/strong>Ch\u1ec9 ra h\u01b0\u1edbng c\u1ee7a chuy\u1ec3n ti\u1ebfp. \u0110\u01b0\u1eddng lu\u00f4n ch\u1ec9 t\u1eeb tr\u1ea1ng th\u00e1i ngu\u1ed3n \u0111\u1ebfn tr\u1ea1ng th\u00e1i \u0111\u00edch.<\/li>\n
        • Lu\u1ed3ng:<\/strong>Bi\u1ec3u di\u1ec5n th\u1ee9 t\u1ef1 th\u1eddi gian c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n. N\u1ebfu tr\u1ea1ng th\u00e1i A chuy\u1ec3n sang tr\u1ea1ng th\u00e1i B, h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ec3 \u1edf tr\u1ea1ng th\u00e1i B m\u00e0 ch\u01b0a r\u1eddi kh\u1ecfi tr\u1ea1ng th\u00e1i A tr\u01b0\u1edbc \u0111\u00f3.<\/li>\n<\/ul>\n

          Nh\u00e3n chuy\u1ec3n ti\u1ebfp<\/h3>\n

          C\u00e1c chuy\u1ec3n ti\u1ebfp hi\u1ebfm khi ch\u1ec9 l\u00e0 nh\u1eefng \u0111\u01b0\u1eddng th\u1eb3ng. Ch\u00fang mang th\u00f4ng tin v\u1ec1 nguy\u00ean nh\u00e2n khi\u1ebfn chuy\u1ec3n ti\u1ebfp x\u1ea3y ra. M\u1ed9t nh\u00e3n chuy\u1ec3n ti\u1ebfp chu\u1ea9n tu\u00e2n theo c\u00fa ph\u00e1p c\u1ee5 th\u1ec3:<\/p>\n

            \n
          • S\u1ef1 ki\u1ec7n:<\/strong>\u0110i\u1ec1u ki\u1ec7n k\u00edch ho\u1ea1t chuy\u1ec3n ti\u1ebfp.<\/li>\n
          • \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7:<\/strong>Bi\u1ec3u th\u1ee9c logic ph\u1ea3i \u0111\u00fang \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp x\u1ea3y ra.<\/li>\n
          • H\u00e0nh \u0111\u1ed9ng:<\/strong>M\u00e3 ho\u1eb7c quy tr\u00ecnh \u0111\u01b0\u1ee3c th\u1ef1c thi trong qu\u00e1 tr\u00ecnh chuy\u1ec3n ti\u1ebfp.<\/li>\n<\/ul>\n

            C\u00fa ph\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau:S\u1ef1 ki\u1ec7n [\u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7] \/ H\u00e0nh \u0111\u1ed9ng<\/code>. V\u00ed d\u1ee5, submit [valid] \/ saveData<\/code> c\u00f3 ngh\u0129a l\u00e0 chuy\u1ec3n ti\u1ebfp x\u1ea3y ra khi s\u1ef1 ki\u1ec7n submit x\u1ea3y ra, \u0111i\u1ec1u ki\u1ec7n d\u1eef li\u1ec7u h\u1ee3p l\u1ec7, v\u00e0 h\u00e0nh \u0111\u1ed9ng saveData \u0111\u01b0\u1ee3c th\u1ef1c thi.<\/p>\n

            \u26a1 3. S\u1ef1 ki\u1ec7n v\u00e0 K\u00edch ho\u1ea1t<\/h2>\n

            M\u1ed9t s\u1ef1 ki\u1ec7n l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n quan tr\u1ecdng g\u00e2y ra chuy\u1ec3n ti\u1ebfp tr\u1ea1ng th\u00e1i. C\u00e1c s\u1ef1 ki\u1ec7n c\u00f3 th\u1ec3 l\u00e0:<\/p>\n

              \n
            • S\u1ef1 ki\u1ec7n t\u00edn hi\u1ec7u:<\/strong>Th\u00f4ng b\u00e1o b\u1ea5t \u0111\u1ed3ng b\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 nh\u1ea5n n\u00fat ho\u1eb7c \u0111\u1ebfn g\u00f3i tin m\u1ea1ng.<\/li>\n
            • S\u1ef1 ki\u1ec7n g\u1ecdi:<\/strong>G\u1ecdi ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ed3ng b\u1ed9.<\/li>\n
            • S\u1ef1 ki\u1ec7n th\u1eddi gian:<\/strong>C\u00e1c \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong th\u1eddi gian ho\u1eb7c kho\u1ea3ng th\u1eddi gian (v\u00ed d\u1ee5: \u201csau 5 ph\u00fat\u201d).<\/li>\n
            • S\u1ef1 ki\u1ec7n ho\u00e0n th\u00e0nh:<\/strong> S\u1ef1 ho\u00e0n th\u00e0nh c\u1ee7a m\u1ed9t ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n<\/ul>\n

              R\u1ea5t quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd r\u1eb1ng m\u1ed9t s\u1ef1 ki\u1ec7n kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng g\u00e2y ra chuy\u1ec3n ti\u1ebfp. H\u1ec7 th\u1ed1ng ph\u1ea3i \u1edf tr\u1ea1ng th\u00e1i \u0111\u00fang \u0111\u1ec3 ph\u1ea3n h\u1ed3i s\u1ef1 ki\u1ec7n. N\u1ebfu h\u1ec7 th\u1ed1ng \u0111ang \u1edf Tr\u1ea1ng th\u00e1i A v\u00e0 nh\u1eadn m\u1ed9t s\u1ef1 ki\u1ec7n d\u00e0nh cho Tr\u1ea1ng th\u00e1i B, s\u1ef1 ki\u1ec7n n\u00e0y th\u01b0\u1eddng b\u1ecb b\u1ecf qua ho\u1eb7c lo\u1ea1i b\u1ecf tr\u1eeb khi c\u00f3 ng\u01b0\u1eddi x\u1eed l\u00fd to\u00e0n c\u1ee5c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a.<\/p>\n

              \ud83d\udee1\ufe0f 4. \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 v\u00e0 H\u00e0nh \u0111\u1ed9ng<\/h2>\n

              C\u00e1c chuy\u1ec3n ti\u1ebfp th\u01b0\u1eddng mang t\u00ednh \u0111i\u1ec1u ki\u1ec7n. \u0110\u00e2y l\u00e0 l\u00fac c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 ph\u00e1t huy t\u00e1c d\u1ee5ng. M\u1ed9t \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 l\u00e0 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n ph\u1ea3i \u0111\u00e1nh gi\u00e1 l\u00e0 \u0111\u00fang \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. N\u1ebfu c\u00f3 nhi\u1ec1u chuy\u1ec3n ti\u1ebfp xu\u1ea5t ph\u00e1t t\u1eeb c\u00f9ng m\u1ed9t tr\u1ea1ng th\u00e1i, c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 s\u1ebd gi\u00fap x\u00e1c \u0111\u1ecbnh con \u0111\u01b0\u1eddng n\u00e0o \u0111\u01b0\u1ee3c ch\u1ecdn.<\/p>\n

              \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<\/h3>\n
                \n
              • C\u00fa ph\u00e1p:<\/strong>\u0110\u01b0\u1ee3c bao b\u1edfi d\u1ea5u ngo\u1eb7c vu\u00f4ng, v\u00ed d\u1ee5 nh\u01b0[isAuthenticated]<\/code>.<\/li>\n
              • Logic:<\/strong>C\u00f3 th\u1ec3 bao g\u1ed3m logic ph\u1ee9c t\u1ea1p, ki\u1ec3m tra bi\u1ebfn ho\u1eb7c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u b\u00ean ngo\u00e0i.<\/li>\n
              • Xung \u0111\u1ed9t:<\/strong>N\u1ebfu nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 \u0111\u1ec1u \u0111\u00fang, c\u1ea7n c\u00f3 chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3i quy\u1ebft xung \u0111\u1ed9t (nh\u01b0 \u01b0u ti\u00ean ho\u1eb7c th\u1ee9 t\u1ef1).<\/li>\n<\/ul>\n

                H\u00e0nh \u0111\u1ed9ng<\/h3>\n

                C\u00e1c h\u00e0nh \u0111\u1ed9ng l\u00e0 nh\u1eefng g\u00ec x\u1ea3y ra khi m\u1ed9t chuy\u1ec3n ti\u1ebfp x\u1ea3y ra. Ch\u00fang \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea sau d\u1ea5u g\u1ea1ch ch\u00e9o (\/). C\u00e1c lo\u1ea1i h\u00e0nh \u0111\u1ed9ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

                  \n
                • H\u00e0nh \u0111\u1ed9ng v\u00e0o:<\/strong>\u0110\u01b0\u1ee3c th\u1ef1c thi khi b\u01b0\u1edbc v\u00e0o m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n
                • H\u00e0nh \u0111\u1ed9ng ra:<\/strong>\u0110\u01b0\u1ee3c th\u1ef1c thi khi r\u1eddi kh\u1ecfi m\u1ed9t tr\u1ea1ng th\u00e1i.<\/li>\n
                • H\u00e0nh \u0111\u1ed9ng th\u1ef1c hi\u1ec7n:<\/strong>\u0110\u01b0\u1ee3c th\u1ef1c thi li\u00ean t\u1ee5c trong khi tr\u1ea1ng th\u00e1i \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n

                  V\u00ed d\u1ee5, trong m\u1ed9t tr\u1ea1ng th\u00e1i g\u1ecdi l\u00e0 \u201c\u0110ang x\u1eed l\u00fd\u201d, m\u1ed9t h\u00e0nh \u0111\u1ed9ng do c\u00f3 th\u1ec3 l\u00e0 \u201cmonitorProgress()\u201d. H\u00e0nh \u0111\u1ed9ng n\u00e0y s\u1ebd ch\u1ea1y l\u1eb7p l\u1ea1i cho \u0111\u1ebfn khi tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c r\u1eddi kh\u1ecfi.<\/p>\n

                  \ud83c\udfc1 5. K\u00fd hi\u1ec7u \u0111\u1eb7c bi\u1ec7t: Tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u v\u00e0 Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac<\/h2>\n

                  M\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i \u0111\u1ec1u c\u1ea7n m\u1ed9t \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u v\u00e0 m\u1ed9t \u0111i\u1ec3m k\u1ebft th\u00fac. Ch\u00fang \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c tr\u1ea1ng th\u00e1i gi\u1ea3 \u0111\u1eb7c bi\u1ec7t.<\/p>\n

                  Tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u<\/h3>\n
                    \n
                  • H\u00ecnh \u1ea3nh:<\/strong> M\u1ed9t h\u00ecnh tr\u00f2n \u0111en \u0111\u1eadm.<\/li>\n
                  • \u00dd ngh\u0129a:<\/strong> \u0110\u1ea1i di\u1ec7n cho \u0111i\u1ec3m v\u00e0o c\u1ee7a m\u00e1y tr\u1ea1ng th\u00e1i. Th\u01b0\u1eddng th\u00ec trong m\u1ed9t s\u01a1 \u0111\u1ed3 ch\u1ec9 c\u00f3 m\u1ed9t tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u.<\/li>\n
                  • Chuy\u1ec3n ti\u1ebfp:<\/strong> M\u1ed9t chuy\u1ec3n ti\u1ebfp ph\u1ea3i r\u1eddi kh\u1ecfi tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh vi th\u1ef1c t\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n

                    Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac<\/h3>\n
                      \n
                    • Tr\u1ef1c quan:<\/strong> M\u1ed9t h\u00ecnh tr\u00f2n \u0111en \u0111\u1eadm \u0111\u01b0\u1ee3c bao quanh b\u1edfi m\u1ed9t h\u00ecnh tr\u00f2n l\u1edbn h\u01a1n.<\/li>\n
                    • \u00dd ngh\u0129a:<\/strong> \u0110\u1ea1i di\u1ec7n cho vi\u1ec7c k\u1ebft th\u00fac c\u1ee7a m\u1ed9t th\u1ec3 hi\u1ec7n m\u00e1y tr\u1ea1ng th\u00e1i. Khi \u0111\u1ea1t \u0111\u01b0\u1ee3c, \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c h\u1ec7 th\u1ed1ng s\u1ebd ng\u1eebng h\u00e0nh vi ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi s\u01a1 \u0111\u1ed3 n\u00e0y.<\/li>\n
                    • Nhi\u1ec1u:<\/strong> M\u1ed9t s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac, \u0111\u1ea1i di\u1ec7n cho c\u00e1c k\u1ebft qu\u1ea3 kh\u00e1c nhau (v\u00ed d\u1ee5: \u201cTh\u00e0nh c\u00f4ng\u201d so v\u1edbi \u201cTh\u1ea5t b\u1ea1i\u201d).<\/li>\n<\/ul>\n

                      \ud83d\udd04 6. K\u00fd hi\u1ec7u n\u00e2ng cao: L\u1ecbch s\u1eed v\u00e0 N\u00fat giao nhau<\/h2>\n

                      C\u00e1c s\u01a1 \u0111\u1ed3 ph\u1ee9c t\u1ea1p y\u00eau c\u1ea7u c\u00e1c k\u00fd hi\u1ec7u \u0111\u1ec3 x\u1eed l\u00fd b\u1ed9 nh\u1edb v\u00e0 ki\u1ec3m so\u00e1t lu\u1ed3ng m\u00e0 kh\u00f4ng l\u00e0m r\u1ed1i logic ch\u00ednh.<\/p>\n

                      Tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed<\/h3>\n

                      Khi r\u1eddi kh\u1ecfi m\u1ed9t tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh v\u00e0 quay l\u1ea1i sau n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 mu\u1ed1n bi\u1ebft m\u00ecnh \u0111\u00e3 d\u1eebng \u1edf \u0111\u00e2u. M\u1ed9t tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed l\u01b0u gi\u1eef th\u00f4ng tin n\u00e0y.<\/p>\n

                        \n
                      • L\u1ecbch s\u1eed n\u00f4ng (H):<\/strong> Ch\u1ec9 ra r\u1eb1ng tr\u1ea1ng th\u00e1i \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng, nh\u01b0ng kh\u00f4ng ch\u1ec9 r\u00f5 tr\u1ea1ng th\u00e1i con n\u00e0o \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n
                      • L\u1ecbch s\u1eed s\u00e2u (&H):<\/strong> Ch\u1ec9 ra tr\u1ea1ng th\u00e1i con ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i c\u00f9ng b\u00ean trong tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh.<\/li>\n
                      • Tr\u1ef1c quan:<\/strong> M\u1ed9t h\u00ecnh tr\u00f2n c\u00f3 ch\u1eef \u2018H\u2019 b\u00ean trong.<\/li>\n<\/ul>\n

                        Chia nh\u00e1nh v\u00e0 Gom l\u1ea1i<\/h3>\n

                        C\u00e1c k\u00fd hi\u1ec7u n\u00e0y qu\u1ea3n l\u00fd t\u00ednh \u0111\u1ed3ng th\u1eddi. M\u1ed9t h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u1edf nhi\u1ec1u tr\u1ea1ng th\u00e1i c\u00f9ng l\u00fac.<\/p>\n

                          \n
                        • Chia nh\u00e1nh:<\/strong> M\u1ed9t chuy\u1ec3n ti\u1ebfp t\u00e1ch th\u00e0nh nhi\u1ec1u chuy\u1ec3n ti\u1ebfp ra. H\u1ec7 th\u1ed1ng s\u1ebd v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1ng th\u00e1i \u0111\u00edch \u0111\u1ed3ng th\u1eddi.<\/li>\n
                        • Gom l\u1ea1i:<\/strong> Nhi\u1ec1u chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn h\u1ee3p l\u1ea1i th\u00e0nh m\u1ed9t. Chuy\u1ec3n ti\u1ebfp ch\u1ec9 ho\u00e0n th\u00e0nh khi t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng \u0111\u1ebfn \u0111\u1ec1u \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n
                        • Tr\u1ef1c quan:<\/strong> M\u1ed9t thanh \u0111en d\u00e0y.<\/li>\n<\/ul>\n

                          N\u00fat giao nhau<\/h3>\n

                          M\u1ed9t n\u00fat giao nhau l\u00e0 m\u1ed9t \u0111i\u1ec3m m\u00e0 nhi\u1ec1u chuy\u1ec3n ti\u1ebfp h\u1ed9i t\u1ee5 ho\u1eb7c t\u00e1ch ra m\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t tr\u1ea1ng th\u00e1i. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a s\u01a1 \u0111\u1ed3 b\u1eb1ng c\u00e1ch gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng \u0111\u01b0\u1eddng n\u1ed1i tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u00e1c tr\u1ea1ng th\u00e1i.<\/p>\n

                            \n
                          • Tr\u1ef1c quan:<\/strong> M\u1ed9t h\u00ecnh tr\u00f2n nh\u1ecf m\u1edf.<\/li>\n
                          • C\u00e1ch s\u1eed d\u1ee5ng:<\/strong>H\u1eefu \u00edch cho logic \u0111\u1ecbnh tuy\u1ebfn kh\u00f4ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i b\u1ea3n th\u00e2n.<\/li>\n<\/ul>\n

                            \ud83d\udcca T\u00f3m t\u1eaft c\u00e1c k\u00fd hi\u1ec7u v\u00e0 k\u00fd ph\u00e1p<\/h2>\n

                            \u0110\u1ec3 h\u1ed7 tr\u1ee3 tra c\u1ee9u nhanh, b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh v\u00e0 c\u00e1ch bi\u1ec3u di\u1ec5n h\u00ecnh \u1ea3nh c\u1ee7a ch\u00fang.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            Th\u00e0nh ph\u1ea7n<\/th>\nK\u00fd hi\u1ec7u h\u00ecnh \u1ea3nh<\/th>\nCh\u1ee9c n\u0103ng<\/th>\n<\/tr>\n<\/thead>\n
                            Tr\u1ea1ng th\u00e1i \u0111\u01a1n gi\u1ea3n<\/td>\nH\u00ecnh ch\u1eef nh\u1eadt bo tr\u00f2n<\/td>\nBi\u1ec3u di\u1ec5n m\u1ed9t tr\u1ea1ng th\u00e1i ri\u00eang bi\u1ec7t c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng.<\/td>\n<\/tr>\n
                            Tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh<\/td>\nH\u1ed9p c\u00f3 h\u1ed9p con<\/td>\nGom c\u00e1c tr\u1ea1ng th\u00e1i con \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/td>\n<\/tr>\n
                            Chuy\u1ec3n ti\u1ebfp<\/td>\n\u0110\u01b0\u1eddng th\u1eb3ng c\u00f3 h\u01b0\u1edbng + \u0111\u1ea7u m\u0169i t\u00ean<\/td>\nK\u1ebft n\u1ed1i c\u00e1c tr\u1ea1ng th\u00e1i v\u00e0 ch\u1ec9 h\u01b0\u1edbng d\u00f2ng ch\u1ea3y.<\/td>\n<\/tr>\n
                            Tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u<\/td>\nV\u00f2ng tr\u00f2n \u0111en \u0111\u1eadm<\/td>\n\u0110i\u1ec3m v\u00e0o c\u1ee7a s\u01a1 \u0111\u1ed3.<\/td>\n<\/tr>\n
                            Tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac<\/td>\nV\u00f2ng tr\u00f2n k\u00e9p<\/td>\n\u0110i\u1ec3m k\u1ebft th\u00fac c\u1ee7a s\u01a1 \u0111\u1ed3.<\/td>\n<\/tr>\n
                            Tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed<\/td>\nV\u00f2ng tr\u00f2n c\u00f3 ch\u1eef \u2018H\u2019<\/td>\nGhi nh\u1edb ng\u1eef c\u1ea3nh tr\u1ea1ng th\u00e1i tr\u01b0\u1edbc \u0111\u00f3.<\/td>\n<\/tr>\n
                            Chia\/T\u00e1ch<\/td>\nThanh \u0111en d\u00e0y<\/td>\nQu\u1ea3n l\u00fd c\u00e1c chuy\u1ec3n ti\u1ebfp \u0111\u1ed3ng th\u1eddi.<\/td>\n<\/tr>\n
                            \u0110i\u1ec3m n\u1ed1i<\/td>\nV\u00f2ng tr\u00f2n m\u1edf<\/td>\nC\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng ch\u1ea3y gi\u1eefa c\u00e1c chuy\u1ec3n ti\u1ebfp.<\/td>\n<\/tr>\n
                            \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<\/td>\n[V\u0103n b\u1ea3n]<\/td>\n\u0110i\u1ec1u ki\u1ec7n ki\u1ec3u Boolean cho chuy\u1ec3n ti\u1ebfp.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                            \ud83d\udcd0 7. M\u00f4 h\u00ecnh h\u00f3a ph\u00e2n c\u1ea5p v\u00e0 t\u00ednh \u0111\u1ed9c l\u1eadp<\/h2>\n

                            M\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng m\u1ea1nh m\u1ebd nh\u1ea5t c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i l\u00e0 kh\u1ea3 n\u0103ng m\u00f4 h\u00ecnh h\u00f3a ph\u00e2n c\u1ea5p v\u00e0 t\u00ednh \u0111\u1ed3ng th\u1eddi.<\/p>\n

                            Tr\u1ea1ng th\u00e1i ph\u00e2n c\u1ea5p<\/h3>\n

                            Ph\u00e2n c\u1ea5p cho ph\u00e9p b\u1ea1n nh\u00fang c\u00e1c tr\u1ea1ng th\u00e1i b\u00ean trong c\u00e1c tr\u1ea1ng th\u00e1i. N\u1ebfu m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c nh\u1eadp, t\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1ng th\u00e1i con m\u1eb7c \u0111\u1ecbnh b\u00ean trong n\u00f3 s\u1ebd tr\u1edf n\u00ean ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y h\u1eefu \u00edch \u0111\u1ec3 chia nh\u1ecf c\u00e1c h\u00e0nh vi ph\u1ee9c t\u1ea1p th\u00e0nh c\u00e1c ph\u1ea7n d\u1ec5 qu\u1ea3n l\u00fd. V\u00ed d\u1ee5, m\u1ed9t tr\u1ea1ng th\u00e1i \u201cM\u00e1y m\u00f3c\u201d c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c tr\u1ea1ng th\u00e1i con \u201c\u0110ang ch\u1edd\u201d, \u201c\u0110ang ch\u1ea1y\u201d v\u00e0 \u201cL\u1ed7i\u201d. N\u1ebfu m\u00e1y m\u00f3c chuy\u1ec3n sang tr\u1ea1ng th\u00e1i con \u201cL\u1ed7i\u201d, n\u00f3 s\u1ebd k\u1ebf th\u1eeba c\u00e1c h\u00e0nh \u0111\u1ed9ng nh\u1eadp c\u1ee7a tr\u1ea1ng th\u00e1i cha \u201cM\u00e1y m\u00f3c\u201d.<\/p>\n

                              \n
                            • Nh\u1eadp m\u1eb7c \u0111\u1ecbnh:<\/strong> Khi nh\u1eadp v\u00e0o m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p, h\u1ec7 th\u1ed1ng s\u1ebd chuy\u1ec3n \u0111\u1ebfn tr\u1ea1ng th\u00e1i con m\u1eb7c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, tr\u1eeb khi c\u00f3 ch\u1ec9 \u0111\u1ecbnh kh\u00e1c.<\/li>\n
                            • K\u1ebf th\u1eeba:<\/strong> C\u00e1c chuy\u1ec3n ti\u1ebfp \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a \u1edf c\u1ea5p cha v\u1eabn h\u1ee3p l\u1ec7 cho c\u00e1c tr\u1ea1ng th\u00e1i con, tr\u1eeb khi b\u1ecb ghi \u0111\u00e8.<\/li>\n<\/ul>\n

                              C\u00e1c v\u00f9ng \u0111\u1ed9c l\u1eadp<\/h3>\n

                              T\u00ednh \u0111\u1ed9c l\u1eadp \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u1ee7a m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p ch\u1ee9a nhi\u1ec1u v\u00f9ng \u0111\u1ed9c l\u1eadp. C\u00e1c v\u00f9ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng song song v\u1edbi nhau. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n tr\u1ef1c quan b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng chia h\u1ed9p tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p.<\/p>\n

                                \n
                              • T\u00ednh \u0111\u1ed3ng th\u1eddi:<\/strong> H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u1edf nhi\u1ec1u tr\u1ea1ng th\u00e1i kh\u00e1c nhau trong c\u00e1c v\u00f9ng kh\u00e1c nhau c\u00f9ng m\u1ed9t l\u00fac.<\/li>\n
                              • T\u00ednh \u0111\u1ed9c l\u1eadp:<\/strong> C\u00e1c s\u1ef1 ki\u1ec7n \u1edf m\u1ed9t v\u00f9ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tr\u1ea1ng th\u00e1i c\u1ee7a v\u00f9ng kh\u00e1c, m\u1eb7c d\u00f9 ch\u00fang c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c chuy\u1ec3n ti\u1ebfp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c bi\u1ebfn chung.<\/li>\n
                              • V\u00ed d\u1ee5 s\u1eed d\u1ee5ng:<\/strong> H\u1eefu \u00edch \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ed9c l\u1eadp, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t b\u1ed9 \u0111i\u1ec1u nhi\u1ec7t (Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9) v\u00e0 qu\u1ea1t (Lu\u1ed3ng kh\u00f4ng kh\u00ed) ho\u1ea1t \u0111\u1ed9ng trong c\u00f9ng m\u1ed9t tr\u1ea1ng th\u00e1i \u201cCh\u1ebf \u0111\u1ed9 s\u01b0\u1edfi \u1ea5m\u201d.<\/li>\n<\/ul>\n

                                \ud83d\udee0\ufe0f 8. Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t<\/h2>\n

                                Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd c\u00e1c h\u1ed9p v\u00e0 m\u0169i t\u00ean. N\u00f3 \u0111\u00f2i h\u1ecfi tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh v\u1eabn duy tr\u00ec \u0111\u01b0\u1ee3c v\u00e0 d\u1ec5 hi\u1ec3u.<\/p>\n

                                T\u00ednh r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 \u0111\u1ecdc<\/h3>\n
                                  \n
                                • T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong> S\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t k\u00fd hi\u1ec7u cho c\u00e1c s\u1ef1 ki\u1ec7n t\u01b0\u01a1ng t\u1ef1 tr\u00ean to\u00e0n s\u01a1 \u0111\u1ed3.<\/li>\n
                                • \u0110\u1eb7t t\u00ean:<\/strong> T\u00ean tr\u1ea1ng th\u00e1i n\u00ean l\u00e0 danh t\u1eeb (v\u00ed d\u1ee5: \u201cM\u1edf c\u1eeda\u201d) trong khi nh\u00e3n chuy\u1ec3n ti\u1ebfp n\u00ean l\u00e0 \u0111\u1ed9ng t\u1eeb (v\u00ed d\u1ee5: \u201cM\u1edf kh\u00f3a\u201d).<\/li>\n
                                • B\u1ed1 c\u1ee5c:<\/strong> S\u1eafp x\u1ebfp c\u00e1c tr\u1ea1ng th\u00e1i m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd \u0111\u1ec3 gi\u1ea3m thi\u1ec3u vi\u1ec7c c\u00e1c \u0111\u01b0\u1eddng giao nhau. S\u1eed d\u1ee5ng c\u00e1c tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p thay v\u00ec v\u1ebd nh\u1eefng \u0111\u01b0\u1eddng d\u00e0i nh\u01b0 m\u00ec \u1ed1ng.<\/li>\n<\/ul>\n

                                  X\u1eed l\u00fd ngo\u1ea1i l\u1ec7<\/h3>\n

                                  M\u1ed9t s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i v\u1eefng ch\u1eafc c\u1ea7n t\u00ednh \u0111\u1ebfn c\u00e1c l\u1ed7i. Thay v\u00ec s\u1eed d\u1ee5ng tr\u1ea1ng th\u00e1i chung chung l\u00e0 \u201cL\u1ed7i\u201d, h\u00e3y c\u00e2n nh\u1eafc c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1ed7i c\u1ee5 th\u1ec3. Tuy nhi\u00ean, tr\u00e1nh t\u1ea1o qu\u00e1 nhi\u1ec1u tr\u1ea1ng th\u00e1i cho t\u1eebng tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7 nh\u1ecf, v\u00ec \u0111i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00ecnh to s\u01a1 \u0111\u1ed3. S\u1eed d\u1ee5ng c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed7i chung cho ph\u00e9p chuy\u1ec3n ti\u1ebfp ph\u1ee5c h\u1ed3i tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i an to\u00e0n.<\/p>\n

                                  Tr\u00e1nh ch\u1ebft m\u00e1y<\/h3>\n

                                  Ch\u1ebft m\u00e1y x\u1ea3y ra khi h\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i m\u00e0 kh\u00f4ng c\u00f3 chuy\u1ec3n ti\u1ebfp n\u00e0o kh\u1ea3 thi, nh\u01b0ng tr\u1ea1ng th\u00e1i \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u1ea1ng th\u00e1i cu\u1ed1i. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1ed7i thi\u1ebft k\u1ebf nghi\u00eam tr\u1ecdng. Ki\u1ec3m tra t\u1eebng tr\u1ea1ng th\u00e1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00f3 \u00edt nh\u1ea5t m\u1ed9t \u0111\u01b0\u1eddng tho\u00e1t h\u1ee3p l\u1ec7, tr\u1eeb khi tr\u1ea1ng th\u00e1i \u0111\u00f3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng l\u00e0 tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac.<\/p>\n

                                  \u26a0\ufe0f 9. Nh\u1eefng sai l\u1ea7m v\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn<\/h2>\n

                                  Ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi m\u00f4 h\u00ecnh h\u00f3a c\u00f3 kinh nghi\u1ec7m c\u0169ng g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1. Nh\u1eadn di\u1ec7n nh\u1eefng sai l\u1ea7m n\u00e0y s\u1edbm c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai.<\/p>\n

                                    \n
                                  • Chuy\u1ec3n ti\u1ebfp b\u1ecb thi\u1ebfu:<\/strong> Qu\u00ean \u0111\u1ecbnh ngh\u0129a \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi s\u1ef1 ki\u1ec7n b\u1ea5t ng\u1edd x\u1ea3y ra. Lu\u00f4n x\u00e1c \u0111\u1ecbnh h\u00e0nh vi m\u1eb7c \u0111\u1ecbnh ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn l\u1ed7i.<\/li>\n
                                  • C\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00e2u thu\u1eabn:<\/strong> C\u00f3 hai chuy\u1ec3n ti\u1ebfp xu\u1ea5t ph\u00e1t t\u1eeb c\u00f9ng m\u1ed9t tr\u1ea1ng th\u00e1i v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u00f3 th\u1ec3 c\u00f9ng \u0111\u00fang \u0111\u1ed3ng th\u1eddi g\u00e2y ra s\u1ef1 m\u01a1 h\u1ed3. \u01afu ti\u00ean ho\u1eb7c tinh ch\u1ec9nh logic.<\/li>\n
                                  • V\u00f2ng l\u1eb7p:<\/strong> C\u00e1c v\u00f2ng l\u1eb7p v\u00f4 h\u1ea1n c\u1ee7a chuy\u1ec3n ti\u1ebfp m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n k\u1ebft th\u00fac c\u00f3 th\u1ec3 g\u00e2y treo h\u1ec7 th\u1ed1ng. \u0110\u1ea3m b\u1ea3o m\u1ecdi v\u00f2ng l\u1eb7p \u0111\u1ec1u c\u00f3 \u0111i\u1ec1u ki\u1ec7n tho\u00e1t r\u00f5 r\u00e0ng.<\/li>\n
                                  • Qu\u00e1 ph\u1ee9c t\u1ea1p:<\/strong> C\u1ed1 g\u1eafng m\u00f4 h\u00ecnh h\u00f3a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng trong m\u1ed9t s\u01a1 \u0111\u1ed3 duy nh\u1ea5t. Chia h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c m\u00e1y tr\u1ea1ng th\u00e1i nh\u1ecf h\u01a1n, t\u1eadp trung v\u00e0o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c b\u1ed9 ph\u1eadn kh\u00e1c nhau.<\/li>\n
                                  • B\u1ecf qua tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed:<\/strong> B\u1ecf qua vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed trong c\u00e1c tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ec7 th\u1ed1ng quay l\u1ea1i c\u00e1c tr\u1ea1ng th\u00e1i con m\u1eb7c \u0111\u1ecbnh m\u1ed9t c\u00e1ch kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n

                                    \ud83d\udcdd 10. C\u00e1c c\u00e2n nh\u1eafc khi tri\u1ec3n khai<\/h2>\n

                                    Khi chuy\u1ec3n t\u1eeb s\u01a1 \u0111\u1ed3 sang m\u00e3 ngu\u1ed3n, s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf. Vi\u1ec7c tri\u1ec3n khai th\u01b0\u1eddng bao g\u1ed3m m\u1eabu tr\u1ea1ng th\u00e1i ho\u1eb7c c\u1ea5u tr\u00fac switch-case, t\u00f9y thu\u1ed9c v\u00e0o ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh.<\/p>\n

                                      \n
                                    • M\u1eabu tr\u1ea1ng th\u00e1i:<\/strong> Bao b\u1ecdc m\u1ed7i tr\u1ea1ng th\u00e1i th\u00e0nh m\u1ed9t l\u1edbp ri\u00eang bi\u1ec7t. \u0110i\u1ec1u n\u00e0y tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 cho ph\u00e9p d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng h\u00e0nh vi m\u1edbi.<\/li>\n
                                    • C\u00e2u l\u1ec7nh switch:<\/strong> M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn \u0111\u01a1n gi\u1ea3n h\u01a1n, trong \u0111\u00f3 tr\u1ea1ng th\u00e1i l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean ho\u1eb7c ki\u1ec3u li\u1ec7t k\u00ea, v\u00e0 logic \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi m\u1ed9t b\u1ed9 \u0111i\u1ec1u ph\u1ed1i trung t\u00e2m.<\/li>\n
                                    • H\u00e0ng \u0111\u1ee3i s\u1ef1 ki\u1ec7n:<\/strong> Trong c\u00e1c h\u1ec7 th\u1ed1ng b\u1ea5t \u0111\u1ed3ng b\u1ed9, s\u1ef1 ki\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o h\u00e0ng \u0111\u1ee3i. M\u00e1y tr\u1ea1ng th\u00e1i x\u1eed l\u00fd h\u00e0ng \u0111\u1ee3i theo th\u1ee9 t\u1ef1, \u0111\u1ea3m b\u1ea3o an to\u00e0n cho lu\u1ed3ng.<\/li>\n<\/ul>\n

                                      D\u00f9 chi\u1ebfn l\u01b0\u1ee3c tri\u1ec3n khai l\u00e0 g\u00ec, s\u01a1 \u0111\u1ed3 ph\u1ea3i lu\u00f4n l\u00e0 ngu\u1ed3n th\u00f4ng tin ch\u00ednh x\u00e1c. N\u1ebfu m\u00e3 ngu\u1ed3n l\u1ec7ch kh\u1ecfi s\u01a1 \u0111\u1ed3, t\u00e0i li\u1ec7u s\u1ebd tr\u1edf n\u00ean l\u1ed7i th\u1eddi, d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 b\u1ea3o tr\u00ec.<\/p>\n

                                      \ud83e\udde0 11. Ph\u00e2n t\u00edch s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i<\/h2>\n

                                      Sau khi s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c t\u1ea1o, n\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch. C\u00e1c b\u00ean li\u00ean quan c\u00f3 th\u1ec3 xem x\u00e9t m\u00f4 h\u00ecnh \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c kho\u1ea3ng tr\u1ed1ng logic.<\/p>\n

                                        \n
                                      • Kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn:<\/strong> C\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn m\u1ecdi tr\u1ea1ng th\u00e1i t\u1eeb tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u kh\u00f4ng?<\/li>\n
                                      • T\u00ednh \u0111\u1ea7y \u0111\u1ee7:<\/strong> C\u00f3 t\u1ea5t c\u1ea3 c\u00e1c s\u1ef1 ki\u1ec7n kh\u1ea3 d\u0129 \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong m\u1ed7i tr\u1ea1ng th\u00e1i kh\u00f4ng?<\/li>\n
                                      • Hi\u1ec7u qu\u1ea3:<\/strong>C\u00f3 nh\u1eefng chuy\u1ec3n ti\u1ebfp ho\u1eb7c tr\u1ea1ng th\u00e1i kh\u00f4ng c\u1ea7n thi\u1ebft n\u00e0o kh\u00f4ng mang l\u1ea1i gi\u00e1 tr\u1ecb g\u00ec kh\u00f4ng?<\/li>\n<\/ul>\n

                                        B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch nghi\u00eam ng\u1eb7t c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y, c\u00e1c \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 tinh ch\u1ec9nh thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi vi\u1ebft b\u1ea5t k\u1ef3 d\u00f2ng m\u00e3 n\u00e0o, gi\u1ea3m thi\u1ec3u n\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 l\u1ed7i.<\/p>\n

                                        \ud83d\udd17 12. T\u00edch h\u1ee3p v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c<\/h2>\n

                                        S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i kh\u00f4ng t\u1ed3n t\u1ea1i m\u1ed9t c\u00e1ch bi\u1ec7t. Ch\u00fang b\u1ed5 sung cho c\u00e1c s\u01a1 \u0111\u1ed3 UML kh\u00e1c \u0111\u1ec3 cung c\u1ea5p c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 h\u1ec7 th\u1ed1ng.<\/p>\n

                                          \n
                                        • S\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1:<\/strong> Hi\u1ec3n th\u1ecb s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i th\u1ec3 hi\u1ec7n h\u00e0nh vi n\u1ed9i t\u1ea1i c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng duy nh\u1ea5t.<\/li>\n
                                        • S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng:<\/strong> T\u1eadp trung v\u00e0o lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 d\u1eef li\u1ec7u. S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i t\u1eadp trung v\u00e0o tr\u1ea1ng th\u00e1i c\u1ee7a ch\u00ednh \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3.<\/li>\n
                                        • S\u01a1 \u0111\u1ed3 l\u1edbp:<\/strong> X\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac. S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i x\u00e1c \u0111\u1ecbnh h\u00e0nh vi c\u1ee7a c\u00e1c l\u1edbp.<\/li>\n<\/ul>\n

                                          S\u1eed d\u1ee5ng ch\u00fang c\u00f9ng nhau \u0111\u1ea3m b\u1ea3o thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac h\u1ed7 tr\u1ee3 c\u00e1c y\u00eau c\u1ea7u h\u00e0nh vi. V\u00ed d\u1ee5, s\u01a1 \u0111\u1ed3 l\u1edbp c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb m\u1ed9t l\u1edbp \u201cPaymentProcessor\u201d, trong khi s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i chi ti\u1ebft c\u00e1c tr\u1ea1ng th\u00e1i \u201c\u0110ang x\u1eed l\u00fd\u201d, \u201cHo\u00e0n t\u1ea5t\u201d v\u00e0 \u201cTh\u1ea5t b\u1ea1i\u201d c\u1ee7a b\u1ed9 x\u1eed l\u00fd \u0111\u00f3.<\/p>\n

                                          \ud83d\ude80 13. S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u00f4 h\u00ecnh tr\u1ea1ng th\u00e1i<\/h2>\n

                                          S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i \u0111\u00e3 ph\u00e1t tri\u1ec3n t\u1eeb c\u00e1c s\u01a1 \u0111\u1ed3 lu\u1ed3ng \u0111\u01a1n gi\u1ea3n th\u00e0nh c\u00e1c m\u00f4 h\u00ecnh ph\u1ee9c t\u1ea1p c\u00f3 kh\u1ea3 n\u0103ng bi\u1ec3u di\u1ec5n c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n. C\u00e1c k\u1ef9 thu\u1eadt m\u00f4 h\u00ecnh h\u00f3a hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng t\u00edch h\u1ee3p m\u00e1y tr\u1ea1ng th\u00e1i v\u1edbi c\u00e1c \u0111\u1ed9ng c\u01a1 quy tr\u00ecnh l\u00e0m vi\u1ec7c v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd quy t\u1eafc kinh doanh. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p th\u00edch \u1ee9ng \u0111\u1ed9ng, n\u01a1i logic tr\u1ea1ng th\u00e1i c\u00f3 th\u1ec3 thay \u0111\u1ed5i m\u00e0 kh\u00f4ng c\u1ea7n bi\u00ean d\u1ecbch l\u1ea1i to\u00e0n b\u1ed9 \u1ee9ng d\u1ee5ng.<\/p>\n

                                            \n
                                          • Tr\u1ea1ng th\u00e1i \u0111\u1ed9ng:<\/strong>M\u1ed9t s\u1ed1 khung c\u00f4ng t\u00e1c cho ph\u00e9p tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c t\u1ea3i t\u1ea1i th\u1eddi \u0111i\u1ec3m ch\u1ea1y.<\/li>\n
                                          • B\u1ec1n v\u1eefng tr\u1ea1ng th\u00e1i:<\/strong>Kh\u1ea3 n\u0103ng l\u01b0u tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 kh\u00f4i ph\u1ee5c l\u1ea1i sau n\u00e0y.<\/li>\n
                                          • C\u00f4ng c\u1ee5 m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan:<\/strong>M\u1eb7c d\u00f9 h\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00e1nh \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u1ea7n m\u1ec1m c\u1ee5 th\u1ec3, c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7n \u0111\u1ea1i cung c\u1ea5p giao di\u1ec7n k\u00e9o th\u1ea3 gi\u00fap t\u1ea1o ra c\u00e1c khung m\u00e3 d\u1ef1a tr\u00ean s\u01a1 \u0111\u1ed3.<\/li>\n<\/ul>\n

                                            \ud83d\udccc Nh\u1eefng suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n

                                            S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c h\u1ed9p v\u00e0 m\u0169i t\u00ean. \u0110\u00f3 l\u00e0 m\u1ed9t ng\u00f4n ng\u1eef ch\u00ednh x\u00e1c \u0111\u1ec3 m\u00f4 t\u1ea3 c\u00e1ch h\u1ec7 th\u1ed1ng h\u00e0nh x\u1eed theo th\u1eddi gian. B\u1eb1ng c\u00e1ch n\u1eafm v\u1eefng c\u00e1c th\u00e0nh ph\u1ea7n\u2014tr\u1ea1ng th\u00e1i, chuy\u1ec3n ti\u1ebfp, s\u1ef1 ki\u1ec7n, \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 v\u00e0 tr\u1ea1ng th\u00e1i gi\u1ea3\u2014c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 nh\u00e0 ph\u00e2n t\u00edch c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1nh m\u1ebd, \u0111\u00e1ng tin c\u1eady, x\u1eed l\u00fd s\u1ef1 ph\u1ee9c t\u1ea1p m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng. D\u00f9 \u0111ang thi\u1ebft k\u1ebf lu\u1ed3ng giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u01a1n gi\u1ea3n hay m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n nh\u00fang ph\u1ee9c t\u1ea1p, c\u00e1c nguy\u00ean t\u1eafc m\u00f4 h\u00ecnh tr\u1ea1ng th\u00e1i v\u1eabn gi\u1eef nguy\u00ean t\u00ednh nh\u1ea5t qu\u00e1n.<\/p>\n

                                            T\u1eadp trung v\u00e0o k\u00fd hi\u1ec7u ch\u00ednh x\u00e1c, th\u1ee9 t\u1ef1 ph\u00e2n c\u1ea5p h\u1ee3p l\u00fd v\u00e0 \u0111\u1ecbnh ngh\u0129a s\u1ef1 ki\u1ec7n r\u00f5 r\u00e0ng \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh k\u1ebft qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch c\u1ee7a n\u00f3: \u0111\u1ecbnh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n v\u00e0 ng\u0103n ng\u1eeba l\u1ed7i. Khi h\u1ec7 th\u1ed1ng ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p, nhu c\u1ea7u v\u1ec1 c\u00e1c m\u00e1y tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng ng\u00e0y c\u00e0ng t\u0103ng. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng nh\u1eefng m\u00f4 h\u00ecnh \u0111\u00f3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

                                            H\u00e3y nh\u1edb gi\u1eef s\u01a1 \u0111\u1ed3 s\u1ea1ch s\u1ebd, s\u1eed d\u1ee5ng th\u1ee9 b\u1eadc \u0111\u1ec3 qu\u1ea3n l\u00fd \u0111\u1ed9 s\u00e2u, v\u00e0 lu\u00f4n x\u00e1c minh c\u00e1c chuy\u1ec3n ti\u1ebfp d\u1ef1a tr\u00ean y\u00eau c\u1ea7u th\u1ef1c t\u1ebf. V\u1edbi nh\u1eefng th\u1ef1c h\u00e0nh n\u00e0y, s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i tr\u1edf th\u00e0nh t\u00e0i s\u1ea3n v\u00f4 gi\u00e1 trong v\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                            S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 m\u00e1y tr\u1ea1ng th\u00e1i trong khu\u00f4n kh\u1ed5 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML), \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00f4ng c\u1ee5…<\/p>\n","protected":false},"author":1,"featured_media":652,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"C\u00e1c k\u00fd hi\u1ec7u v\u00e0 th\u00e0nh ph\u1ea7n s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n \ud83e\udde9","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1c k\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i, m\u0169i t\u00ean v\u00e0 tr\u1ea1ng th\u00e1i. H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n m\u00e1y tr\u1ea1ng th\u00e1i UML \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u00e0nh vi h\u1ec7 th\u1ed1ng. \ud83d\udee0\ufe0f","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[35],"tags":[40,41],"class_list":["post-651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-state-machine-diagram"],"yoast_head":"\nC\u00e1c k\u00fd hi\u1ec7u v\u00e0 th\u00e0nh ph\u1ea7n s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n \ud83e\udde9<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1c k\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i, m\u0169i t\u00ean v\u00e0 tr\u1ea1ng th\u00e1i. 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