{"id":544,"date":"2026-04-07T22:25:39","date_gmt":"2026-04-07T22:25:39","guid":{"rendered":"https:\/\/www.viz-tools.com\/vi\/uml-timing-diagrams-event-driven-architecture-future\/"},"modified":"2026-04-07T22:25:39","modified_gmt":"2026-04-07T22:25:39","slug":"uml-timing-diagrams-event-driven-architecture-future","status":"publish","type":"post","link":"https:\/\/www.viz-tools.com\/vi\/uml-timing-diagrams-event-driven-architecture-future\/","title":{"rendered":"T\u01b0\u01a1ng lai nh\u00ecn nh\u1eadn: UML Timing Diagram \u0111ang ti\u1ebfn h\u00f3a nh\u01b0 th\u1ebf n\u00e0o theo xu h\u01b0\u1edbng ki\u1ebfn tr\u00fac h\u01b0\u1edbng s\u1ef1 ki\u1ec7n"},"content":{"rendered":"

Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m \u0111ang tr\u1ea3i qua m\u1ed9t s\u1ef1 thay \u0111\u1ed5i c\u0103n b\u1ea3n. S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3, \u0111\u1ed3ng b\u1ed9 sang m\u00f4i tr\u01b0\u1eddng ph\u00e2n t\u00e1n, b\u1ea5t \u0111\u1ed3ng b\u1ed9 \u0111\u00e3 thay \u0111\u1ed5i c\u00e1ch ch\u00fang ta m\u00f4 h\u00ecnh h\u00f3a h\u00e0nh vi h\u1ec7 th\u1ed1ng. \u1ede trung t\u00e2m c\u1ee7a s\u1ef1 thay \u0111\u1ed5i n\u00e0y l\u00e0 th\u00e1ch th\u1ee9c v\u1ec1 vi\u1ec7c tr\u1ef1c quan h\u00f3a th\u1eddi gian. C\u00e1c k\u1ef9 thu\u1eadt m\u00f4 h\u00ecnh h\u00f3a truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c n\u1eafm b\u1eaft nh\u1eefng s\u1eafc th\u00e1i c\u1ee7a c\u00e1c m\u1eabu giao ti\u1ebfp hi\u1ec7n \u0111\u1ea1i. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch qu\u1ef9 \u0111\u1ea1o ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3 Th\u1eddi gian UML khi ch\u00fang th\u00edch nghi v\u1edbi \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a Ki\u1ebfn tr\u00fac H\u01b0\u1edbng s\u1ef1 ki\u1ec7n (EDA).<\/p>\n

C\u00e1c s\u01a1 \u0111\u1ed3 th\u1eddi gian cung c\u1ea5p c\u00e1i nh\u00ecn quan tr\u1ecdng v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh th\u1eddi gian trong t\u01b0\u01a1ng t\u00e1c h\u1ec7 th\u1ed1ng. Ch\u00fang minh h\u1ecda c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng h\u00e0nh x\u1eed theo th\u1eddi gian, t\u1eadp trung v\u00e0o c\u00e1c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i v\u00e0 trao \u0111\u1ed5i t\u00edn hi\u1ec7u. Trong b\u1ed1i c\u1ea3nh EDA, c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng y\u00eau c\u1ea7u m\u1edbi. C\u00e1c tin nh\u1eafn kh\u00f4ng c\u00f2n \u0111\u01a1n gi\u1ea3n l\u00e0 y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i; ch\u00fang l\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t c\u00e1c ph\u1ea3n \u1ee9ng lan truy\u1ec1n qua c\u00e1c n\u00fat ph\u00e2n t\u00e1n. Hi\u1ec3u r\u00f5 s\u1ef1 ph\u00e1t tri\u1ec3n n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 nh\u1eb1m duy tr\u00ec s\u1ef1 r\u00f5 r\u00e0ng v\u00e0 hi\u1ec7u su\u1ea5t trong m\u00f4i tr\u01b0\u1eddng ph\u1ee9c t\u1ea1p.<\/p>\n

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\"Cartoon<\/figure>\n<\/div>\n

\ud83d\udd04 S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb m\u00f4 h\u00ecnh \u0111\u1ed3ng b\u1ed9 sang b\u1ea5t \u0111\u1ed3ng b\u1ed9<\/h2>\n

M\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng c\u0169 ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u01a1 ch\u1ebf g\u1ecdi v\u00e0 tr\u1ea3 v\u1ec1. M\u1ed9t l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c s\u1ebd ch\u1eb7n th\u1ef1c thi cho \u0111\u1ebfn khi nh\u1eadn \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3. C\u00e1c s\u01a1 \u0111\u1ed3 th\u1eddi gian trong b\u1ed1i c\u1ea3nh n\u00e0y r\u1ea5t \u0111\u01a1n gi\u1ea3n. Ch\u00fang th\u1ec3 hi\u1ec7n m\u1ed9t tr\u00ecnh t\u1ef1 r\u00f5 r\u00e0ng c\u00e1c s\u1ef1 ki\u1ec7n d\u1ecdc theo tr\u1ee5c th\u1eddi gian. Ng\u01b0\u1eddi g\u1eedi ch\u1edd ng\u01b0\u1eddi nh\u1eadn. M\u1ed1i quan h\u1ec7 l\u00e0 x\u00e1c \u0111\u1ecbnh.<\/p>\n

Ki\u1ebfn tr\u00fac H\u01b0\u1edbng s\u1ef1 ki\u1ec7n thay \u0111\u1ed5i \u0111\u1ed9ng l\u1ef1c n\u00e0y. C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n nay giao ti\u1ebfp th\u00f4ng qua lu\u1ed3ng s\u1ef1 ki\u1ec7n. M\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00e1t h\u00e0nh m\u1ed9t s\u1ef1 ki\u1ec7n m\u00e0 kh\u00f4ng c\u1ea7n bi\u1ebft ai s\u1ebd ti\u00eau th\u1ee5 n\u00f3. Ng\u01b0\u1eddi ti\u00eau th\u1ee5 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n theo t\u1ed1c \u0111\u1ed9 ri\u00eang c\u1ee7a m\u00ecnh. \u0110i\u1ec1u n\u00e0y \u0111\u01b0a v\u00e0o m\u00f4 h\u00ecnh th\u1eddi gian t\u00ednh kh\u00f4ng x\u00e1c \u0111\u1ecbnh. C\u00e1c \u0111i\u1ec3m sau \u0111\u00e2y n\u00eau b\u1eadt s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i:<\/p>\n

    \n
  • Kh\u00f3a vs. Kh\u00f4ng kh\u00f3a:<\/strong> C\u00e1c l\u1eddi g\u1ecdi \u0111\u1ed3ng b\u1ed9 s\u1ebd kh\u00f3a lu\u1ed3ng. C\u00e1c x\u1eed l\u00fd s\u1ef1 ki\u1ec7n ch\u1ea1y b\u1ea5t \u0111\u1ed3ng b\u1ed9, th\u01b0\u1eddng tr\u00ean c\u00e1c lu\u1ed3ng ho\u1eb7c ti\u1ebfn tr\u00ecnh kh\u00e1c nhau.<\/li>\n
  • Tr\u1ef1c ti\u1ebfp vs. Gi\u00e1n ti\u1ebfp:<\/strong> C\u00e1c m\u00f4 h\u00ecnh truy\u1ec1n th\u1ed1ng th\u1ec3 hi\u1ec7n c\u00e1c k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp. C\u00e1c m\u00f4 h\u00ecnh EDA th\u1ec3 hi\u1ec7n ng\u01b0\u1eddi ph\u00e1t h\u00e0nh v\u00e0 ng\u01b0\u1eddi theo d\u00f5i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i th\u00f4ng qua m\u1ed9t m\u00e1y trung gian ho\u1eb7c lu\u1ed3ng.<\/li>\n
  • Ngay l\u1eadp t\u1ee9c vs. Ch\u1eadm tr\u1ec5:<\/strong> \u0110\u1ed9 tr\u1ec5 kh\u00f4ng c\u00f2n ch\u1ec9 l\u00e0 \u0111\u1ed9 tr\u1ec5 m\u1ea1ng. N\u00f3 bao g\u1ed3m c\u00e1c h\u00e0ng \u0111\u1ee3i x\u1eed l\u00fd, \u0111\u1ec7m v\u00e0 s\u1eafp x\u1ebfp l\u1ea1i.<\/li>\n<\/ul>\n

    Khi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y, s\u01a1 \u0111\u1ed3 th\u1eddi gian ph\u1ea3i ti\u1ebfn h\u00f3a \u0111\u1ec3 m\u00f4 t\u1ea3 ch\u00ednh x\u00e1c c\u00e1c \u0111\u1ed9 tr\u1ec5 v\u00e0 c\u01a1 ch\u1ebf t\u00e1ch bi\u1ec7t n\u00e0y. S\u01a1 \u0111\u1ed3 kh\u00f4ng c\u00f2n ch\u1ec9 v\u1ec1 th\u1ee9 t\u1ef1; m\u00e0 l\u00e0 v\u1ec1 dung l\u01b0\u1ee3ng v\u00e0 lu\u1ed3ng.<\/p>\n

    \u23f1\ufe0f C\u00e1c xu h\u01b0\u1edbng ti\u1ebfn h\u00f3a ch\u00ednh trong m\u00f4 h\u00ecnh h\u00f3a<\/h2>\n

    C\u1ea5u tr\u00fac c\u1ee7a c\u00e1c s\u01a1 \u0111\u1ed3 Th\u1eddi gian UML \u0111ang m\u1edf r\u1ed9ng \u0111\u1ec3 th\u00edch nghi v\u1edbi nh\u1eefng th\u1ef1c t\u1ebf m\u1edbi n\u00e0y. M\u1ed9t s\u1ed1 xu h\u01b0\u1edbng \u0111ang n\u1ed5i l\u00ean v\u1ec1 c\u00e1ch c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u00e0 di\u1ec5n gi\u1ea3i trong m\u00f4i tr\u01b0\u1eddng thi\u1ebft k\u1ebf hi\u1ec7n \u0111\u1ea1i.<\/p>\n

    1. Tr\u1ef1c quan h\u00f3a c\u00e1c h\u00e0ng \u0111\u1ee3i tin nh\u1eafn v\u00e0 b\u1ed9 \u0111\u1ec7m<\/h3>\n

    Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed3ng b\u1ed9, m\u1ed9t tin nh\u1eafn di chuy\u1ec3n t\u1eeb \u0111i\u1ec3m A \u0111\u1ebfn \u0111i\u1ec3m B ngay l\u1eadp t\u1ee9c. Trong EDA, tin nh\u1eafn s\u1ebd \u0111i v\u00e0o m\u1ed9t h\u00e0ng \u0111\u1ee3i. S\u01a1 \u0111\u1ed3 th\u1eddi gian hi\u1ec7n nay ph\u1ea3i bi\u1ec3u di\u1ec5n ch\u00ednh h\u00e0ng \u0111\u1ee3i nh\u01b0 m\u1ed9t \u0111\u01b0\u1eddng s\u1ed1ng ho\u1eb7c m\u1ed9t tr\u1ea1ng th\u00e1i ri\u00eang bi\u1ec7t. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf th\u1ea5y \u0111\u01b0\u1ee3c n\u01a1i x\u1ea3y ra ngh\u1ebdn. N\u1ebfu h\u00e0ng \u0111\u1ee3i l\u1edbn qu\u00e1 m\u1ee9c, s\u01a1 \u0111\u1ed3 th\u1eddi gian s\u1ebd th\u1ec3 hi\u1ec7n s\u1ef1 t\u00edch t\u1ee5 tin nh\u1eafn theo th\u1eddi gian.<\/p>\n

    C\u00e1c y\u1ebfu t\u1ed1 then ch\u1ed1t khi m\u00f4 h\u00ecnh h\u00f3a h\u00e0ng \u0111\u1ee3i bao g\u1ed3m:<\/p>\n

      \n
    • \u0110\u1ed9 s\u00e2u h\u00e0ng \u0111\u1ee3i:<\/strong> C\u00f3 th\u1ec3 l\u01b0u bao nhi\u00eau tin nh\u1eafn tr\u01b0\u1edbc khi h\u1ec7 th\u1ed1ng t\u1eeb ch\u1ed1i c\u00e1c tin nh\u1eafn m\u1edbi?<\/li>\n
    • T\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd:<\/strong> Ng\u01b0\u1eddi ti\u00eau th\u1ee5 c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1ebfn nhanh \u0111\u1ebfn m\u1ee9c n\u00e0o?<\/li>\n
    • \u00c1p l\u1ef1c ng\u01b0\u1ee3c:<\/strong> H\u1ec7 th\u1ed1ng ph\u1ea3n \u1ee9ng nh\u01b0 th\u1ebf n\u00e0o khi ng\u01b0\u1eddi ti\u00eau th\u1ee5 b\u1ecb t\u1ee5t l\u1ea1i ph\u00eda sau?<\/li>\n<\/ul>\n

      2. X\u1eed l\u00fd t\u00ednh \u0111\u1ed3ng th\u1eddi v\u00e0 song song<\/h3>\n

      C\u00e1c h\u1ec7 th\u1ed1ng h\u01b0\u1edbng s\u1ef1 ki\u1ec7n th\u01b0\u1eddng x\u1eed l\u00fd nhi\u1ec1u s\u1ef1 ki\u1ec7n \u0111\u1ed3ng th\u1eddi. M\u1ed9t s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u1ec1u quy tr\u00ecnh \u0111\u1ed9c l\u1eadp. C\u00e1c s\u01a1 \u0111\u1ed3 th\u1eddi gian truy\u1ec1n th\u1ed1ng g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng vi\u1ec7c th\u1ef1c thi song song. C\u00e1c phi\u00ean b\u1ea3n hi\u1ec7n \u0111\u1ea1i gi\u1edbi thi\u1ec7u nhi\u1ec1u tr\u1ee5c th\u1eddi gian ho\u1eb7c l\u00e0n \u0111\u01b0\u1eddng \u0111\u1ec3 bi\u1ec3u di\u1ec5n c\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng \u0111\u1ed3ng th\u1eddi.<\/p>\n

      C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea1nh tranh. N\u1ebfu hai s\u1ef1 ki\u1ec7n \u0111\u1ebfn g\u1ea7n nh\u01b0 c\u00f9ng m\u1ed9t l\u00fac, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 tr\u1ef1c quan h\u00f3a s\u1ef1 ki\u1ec7n n\u00e0o \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u01b0\u1edbc. S\u1ef1 minh b\u1ea1ch n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u trong c\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u00e2n t\u00e1n.<\/p>\n

      3. Bi\u1ec3u di\u1ec5n m\u00e1y tr\u1ea1ng th\u00e1i theo th\u1eddi gian<\/h3>\n

      C\u00e1c s\u1ef1 ki\u1ec7n th\u01b0\u1eddng thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ed9t s\u01a1 \u0111\u1ed3 th\u1eddi gian hi\u1ec7n nay t\u00edch h\u1ee3p c\u00e1c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i s\u00e2u s\u1eafc h\u01a1n. Thay v\u00ec ch\u1ec9 hi\u1ec3n th\u1ecb m\u1ed9t t\u00edn hi\u1ec7u, n\u00f3 th\u1ec3 hi\u1ec7n qu\u00e1 tr\u00ecnh chuy\u1ec3n t\u1eeb Tr\u1ea1ng th\u00e1i A sang Tr\u1ea1ng th\u00e1i B. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n c\u00f3 tr\u1ea1ng th\u00e1i.<\/p>\n

      Khi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u00f3 tr\u1ea1ng th\u00e1i, h\u00e3y c\u00e2n nh\u1eafc nh\u1eefng \u0111i\u1ec1u sau:<\/p>\n

        \n
      • Th\u1eddi l\u01b0\u1ee3ng tr\u1ea1ng th\u00e1i:<\/strong>M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng duy tr\u00ec trong m\u1ed9t tr\u1ea1ng th\u00e1i c\u1ee5 th\u1ec3 trong bao l\u00e2u?<\/li>\n
      • H\u1ea1n ch\u1ebf th\u1eddi gian:<\/strong>\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu m\u1ed9t s\u1ef1 ki\u1ec7n kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh?<\/li>\n
      • Kh\u00f4i ph\u1ee5c:<\/strong>H\u1ec7 th\u1ed1ng s\u1ebd tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh sau l\u1ed7i nh\u01b0 th\u1ebf n\u00e0o?<\/li>\n<\/ul>\n

        \ud83d\udcca Th\u00e1ch th\u1ee9c trong vi\u1ec7c tr\u1ef1c quan h\u00f3a lu\u1ed3ng s\u1ef1 ki\u1ec7n<\/h2>\n

        M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u l\u1ee3i \u00edch, vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a th\u1eddi gian trong EDA \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn. T\u00ednh ch\u1ea5t \u0111\u1ed9ng c\u1ee7a lu\u1ed3ng s\u1ef1 ki\u1ec7n khi\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 t\u0129nh tr\u1edf n\u00ean k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n. C\u00e1c ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea3i v\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y \u0111\u1ec3 t\u1ea1o ra t\u00e0i li\u1ec7u h\u1eefu \u00edch.<\/p>\n\n\n\n\n\n\n\n\n
        Th\u00e1ch th\u1ee9c<\/th>\nT\u00e1c \u0111\u1ed9ng \u0111\u1ebfn s\u01a1 \u0111\u1ed3 th\u1eddi gian<\/th>\nChi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u<\/th>\n<\/tr>\n<\/thead>\n
        \u0110\u1ed9 tr\u1ec5 kh\u00f4ng x\u00e1c \u0111\u1ecbnh<\/td>\nKho\u1ea3ng th\u1eddi gian tr\u1edf n\u00ean thay \u0111\u1ed5i v\u00e0 kh\u00f4ng th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c.<\/td>\nS\u1eed d\u1ee5ng kho\u1ea3ng (gi\u00e1 tr\u1ecb nh\u1ecf nh\u1ea5t\/l\u1edbn nh\u1ea5t) thay v\u00ec gi\u00e1 tr\u1ecb c\u1ed1 \u0111\u1ecbnh.<\/td>\n<\/tr>\n
        Chia t\u00e1ch m\u1ea1ng<\/td>\nTin nh\u1eafn c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t ho\u1eb7c b\u1ecb tr\u00ec ho\u00e3n v\u00f4 th\u1eddi h\u1ea1n.<\/td>\nBao g\u1ed3m c\u00e1c \u0111\u01b0\u1eddng d\u1eabn l\u1ed7i v\u00e0 c\u01a1 ch\u1ebf th\u1eed l\u1ea1i trong d\u00f2ng th\u1eddi gian.<\/td>\n<\/tr>\n
        Giao h\u00e0ng kh\u00f4ng theo th\u1ee9 t\u1ef1<\/td>\nS\u1ef1 ki\u1ec7n \u0111\u1ebfn theo th\u1ee9 t\u1ef1 kh\u00e1c v\u1edbi th\u1ee9 t\u1ef1 g\u1eedi.<\/td>\nM\u00f4 h\u00ecnh h\u00f3a s\u1ed1 th\u1ee9 t\u1ef1 v\u00e0 b\u1ed9 \u0111\u1ec7m s\u1eafp x\u1ebfp l\u1ea1i.<\/td>\n<\/tr>\n
        Bi\u1ebfn th\u1ec3 v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/td>\nHi\u1ec7u su\u1ea5t thay \u0111\u1ed5i khi s\u1ed1 l\u01b0\u1ee3ng n\u00fat t\u0103ng l\u00ean.<\/td>\nGhi ch\u00fa s\u01a1 \u0111\u1ed3 b\u1eb1ng ng\u01b0\u1ee1ng m\u1edf r\u1ed9ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        M\u1ed9t th\u00e1ch th\u1ee9c c\u1ee5 th\u1ec3 l\u00e0 vi\u1ec7c bi\u1ec3u di\u1ec5n ch\u00ednh b\u1ea3n th\u00e2n th\u1eddi gian. Trong h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3, th\u1eddi gian th\u01b0\u1eddng tuy\u1ebfn t\u00ednh v\u00e0 c\u1ee5c b\u1ed9. Trong h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n, th\u1eddi gian l\u00e0 to\u00e0n c\u1ea7u nh\u01b0ng kh\u00f4ng nh\u1ea5t qu\u00e1n. \u0110\u1ed3ng h\u1ed3 b\u1ecb l\u1ec7ch. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a th\u1eddi gian tuy\u1ec7t \u0111\u1ed1i tr\u1edf n\u00ean kh\u00f3 kh\u0103n. C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf th\u01b0\u1eddng d\u1ef1a v\u00e0o th\u1eddi gian t\u01b0\u01a1ng \u0111\u1ed1i ho\u1eb7c th\u1eddi gian logic \u0111\u1ec3 lo\u1ea1i b\u1ecf nh\u1eefng b\u1ea5t nh\u1ea5t v\u1eadt l\u00fd n\u00e0y.<\/p>\n

        \ud83d\udee0\ufe0f C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho m\u00f4 h\u00ecnh th\u1eddi gian hi\u1ec7n \u0111\u1ea1i<\/h2>\n

        \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 th\u1eddi gian v\u1eabn h\u1eefu \u00edch trong b\u1ed1i c\u1ea3nh d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n, c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c th\u1ef1c h\u00e0nh c\u1ee5 th\u1ec3. Nh\u1eefng h\u01b0\u1edbng d\u1eabn n\u00e0y gi\u00fap duy tr\u00ec s\u1ef1 r\u00f5 r\u00e0ng m\u00e0 kh\u00f4ng l\u00e0m \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 m\u1ee9c \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n

        1. T\u1eadp trung v\u00e0o c\u00e1c \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng<\/h3>\n

        Kh\u00f4ng ph\u1ea3i m\u1ecdi t\u01b0\u01a1ng t\u00e1c n\u00e0o c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c v\u1ebd. T\u1eadp trung v\u00e0o c\u00e1c \u0111\u01b0\u1eddng \u0111i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tr\u1ec5 ho\u1eb7c \u0111\u1ed9 tin c\u1eady. Bao g\u1ed3m lu\u1ed3ng giao d\u1ecbch ch\u00ednh v\u00e0 lu\u1ed3ng ph\u1ee5c h\u1ed3i l\u1ed7i. B\u1ecf qua c\u00e1c t\u00e1c v\u1ee5 n\u1ec1n \u01b0u ti\u00ean th\u1ea5p tr\u1eeb khi ch\u00fang \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng.<\/p>\n

        2. Ghi ch\u00fa r\u00f5 r\u00e0ng c\u00e1c gi\u1edbi h\u1ea1n th\u1eddi gian<\/h3>\n

        S\u1eed d\u1ee5ng ch\u00fa th\u00edch \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n th\u1eddi gian. N\u1ebfu m\u1ed9t tin nh\u1eafn ph\u1ea3i \u0111\u01b0\u1ee3c x\u1eed l\u00fd trong v\u00f2ng 100 mili gi\u00e2y, h\u00e3y n\u00eau r\u00f5 \u0111i\u1ec1u n\u00e0y tr\u00ean s\u01a1 \u0111\u1ed3. \u0110i\u1ec1u n\u00e0y ng\u0103n ng\u1eeba s\u1ef1 m\u01a1 h\u1ed3 trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai. S\u1eed d\u1ee5ng \u0111\u01a1n v\u1ecb nh\u01b0 mili gi\u00e2y ho\u1eb7c gi\u00e2y \u0111\u1ec3 tr\u00e1nh nh\u1ea7m l\u1eabn.<\/p>\n

        3. T\u00e1ch bi\u1ec7t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u<\/h3>\n

        C\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n (v\u00ed d\u1ee5: x\u00e1c nh\u1eadn) kh\u00e1c v\u1edbi d\u1eef li\u1ec7u truy\u1ec1n t\u1ea3i. T\u00e1ch bi\u1ec7t c\u00e1c lu\u1ed3ng s\u1ed1ng n\u00e0y. C\u00e1c lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n th\u01b0\u1eddng y\u00eau c\u1ea7u th\u1eddi gian ch\u00ednh x\u00e1c. C\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec7m. S\u1ef1 ph\u00e2n t\u00e1ch tr\u1ef1c quan gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n hi\u1ec3u r\u00f5 ph\u1ea7n n\u00e0o c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u1ed3ng b\u1ed9 h\u00f3a.<\/p>\n

        4. T\u00edch h\u1ee3p v\u1edbi d\u1eef li\u1ec7u quan s\u00e1t<\/h3>\n

        C\u00e1c s\u01a1 \u0111\u1ed3 t\u0129nh cu\u1ed1i c\u00f9ng n\u00ean ph\u1ea3n \u00e1nh \u0111\u00fang th\u1ef1c t\u1ebf. K\u1ebft n\u1ed1i m\u00f4 h\u00ecnh v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t. N\u1ebfu s\u01a1 \u0111\u1ed3 d\u1ef1 \u0111o\u00e1n \u0111\u1ed9 tr\u1ec5 50ms nh\u01b0ng nh\u1eadt k\u00fd l\u1ea1i cho th\u1ea5y 200ms, th\u00ec m\u00f4 h\u00ecnh c\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt. V\u00f2ng ph\u1ea3n h\u1ed3i n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u lu\u00f4n ch\u00ednh x\u00e1c.<\/p>\n

        \ud83d\udd17 T\u00edch h\u1ee3p v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 vi m\u00f4<\/h2>\n

        Ki\u1ebfn tr\u00fac d\u1ecbch v\u1ee5 vi m\u00f4 l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn t\u1ef1 nhi\u00ean cho Ki\u1ebfn tr\u00fac D\u1ef1a tr\u00ean S\u1ef1 ki\u1ec7n. M\u1ed7i d\u1ecbch v\u1ee5 s\u1edf h\u1eefu d\u1eef li\u1ec7u v\u00e0 logic c\u1ee7a ri\u00eang n\u00f3. Ch\u00fang giao ti\u1ebfp th\u00f4ng qua s\u1ef1 ki\u1ec7n \u0111\u1ec3 duy tr\u00ec t\u00ednh li\u00ean k\u1ebft l\u1ecfng l\u1ebbo. C\u00e1c s\u01a1 \u0111\u1ed3 th\u1eddi gian \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 n\u00e0y.<\/p>\n

        Khi m\u00f4 h\u00ecnh h\u00f3a c\u00e1c d\u1ecbch v\u1ee5 vi m\u00f4, h\u00e3y c\u00e2n nh\u1eafc c\u00e1c t\u00ecnh hu\u1ed1ng sau:<\/p>\n

          \n
        • M\u1eabu Saga:<\/strong> C\u00e1c giao d\u1ecbch k\u00e9o d\u00e0i tr\u1ea3i qua nhi\u1ec1u d\u1ecbch v\u1ee5. S\u01a1 \u0111\u1ed3 th\u1eddi gian th\u1ec3 hi\u1ec7n tr\u00ecnh t\u1ef1 c\u00e1c giao d\u1ecbch b\u00f9 tr\u1eeb n\u1ebfu m\u1ed9t b\u01b0\u1edbc th\u1ea5t b\u1ea1i.<\/li>\n
        • C\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch:<\/strong> C\u00e1c c\u01a1 ch\u1ebf ng\u0103n ch\u1eb7n s\u1ef1 c\u1ed1 lan r\u1ed9ng. S\u01a1 \u0111\u1ed3 th\u1ec3 hi\u1ec7n ng\u01b0\u1ee1ng th\u1eddi gian h\u1ebft h\u1ea1n k\u00edch ho\u1ea1t b\u1ed9 ng\u1eaft m\u1ea1ch.<\/li>\n
        • M\u1ea1ng d\u1ecbch v\u1ee5:<\/strong> C\u00e1c l\u1edbp h\u1ea1 t\u1ea7ng x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng. S\u01a1 \u0111\u1ed3 th\u1eddi gian ph\u1ea3i t\u00ednh \u0111\u1ebfn chi ph\u00ed ph\u00e1t sinh do sidecars ho\u1eb7c proxy.<\/li>\n<\/ul>\n

          M\u1ee9c \u0111\u1ed9 chi ti\u1ebft c\u1ee7a s\u01a1 \u0111\u1ed3 ph\u1ee5 thu\u1ed9c v\u00e0o ph\u1ea1m vi. S\u01a1 \u0111\u1ed3 c\u1ea5p cao th\u1ec3 hi\u1ec7n giao ti\u1ebfp gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5. S\u01a1 \u0111\u1ed3 chi ti\u1ebft th\u1ec3 hi\u1ec7n x\u1eed l\u00fd s\u1ef1 ki\u1ec7n n\u1ed9i b\u1ed9 trong m\u1ed9t d\u1ecbch v\u1ee5. C\u1ea3 hai c\u1ea5p \u0111\u1ed9 n\u00e0y \u0111\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 hi\u1ec3u to\u00e0n di\u1ec7n h\u1ec7 th\u1ed1ng.<\/p>\n

          \ud83d\udcc8 Tr\u1ef1c quan h\u00f3a \u0111\u1ed9 tr\u1ec5 v\u00e0 b\u0103ng th\u00f4ng<\/h2>\n

          Hi\u1ec7u su\u1ea5t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t th\u00fac \u0111\u1ea9y vi\u1ec7c \u00e1p d\u1ee5ng Ki\u1ebfn tr\u00fac D\u1ef1a tr\u00ean S\u1ef1 ki\u1ec7n. S\u01a1 \u0111\u1ed3 th\u1eddi gian l\u00e0 c\u00f4ng c\u1ee5 ch\u00ednh \u0111\u1ec3 tr\u1ef1c quan h\u00f3a c\u00e1c \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t. Ch\u00fang chuy\u1ec3n \u0111\u1ed5i c\u00e1c kh\u00e1i ni\u1ec7m tr\u1eebu t\u01b0\u1ee3ng nh\u01b0 b\u0103ng th\u00f4ng th\u00e0nh c\u00e1c d\u00f2ng th\u1eddi gian tr\u1ef1c quan.<\/p>\n

          1. Ph\u00e2n t\u00edch \u0111\u1ed9 tr\u1ec5<\/h3>\n

          \u0110\u1ed9 tr\u1ec5 l\u00e0 kho\u1ea3ng th\u1eddi gian gi\u1eefa m\u1ed9t s\u1ef1 ki\u1ec7n x\u1ea3y ra v\u00e0 h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i. Trong EDA, \u0111i\u1ec1u n\u00e0y bao g\u1ed3m:<\/p>\n

            \n
          • Truy\u1ec1n d\u1eabn m\u1ea1ng:<\/strong> Th\u1eddi gian di chuy\u1ec3n d\u1eef li\u1ec7u qua m\u1ea1ng.<\/li>\n
          • \u0110\u1ed9 tr\u1ec5 h\u00e0ng \u0111\u1ee3i:<\/strong> Th\u1eddi gian ch\u1edd trong m\u00e1y ch\u1ee7 tin nh\u1eafn.<\/li>\n
          • Th\u1eddi gian x\u1eed l\u00fd:<\/strong> Th\u1eddi gian d\u00e0nh \u0111\u1ec3 th\u1ef1c thi tr\u00ecnh x\u1eed l\u00fd s\u1ef1 ki\u1ec7n.<\/li>\n<\/ul>\n

            M\u1ed9t s\u01a1 \u0111\u1ed3 th\u1eddi gian chia nh\u1ecf c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y. N\u00f3 cho th\u1ea5y n\u01a1i \u0111\u1ed9 tr\u1ec5 x\u1ea3y ra. N\u1ebfu h\u00e0ng \u0111\u1ee3i cao, \u0111i\u1ec3m ngh\u1ebdn l\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u1ee7a ng\u01b0\u1eddi ti\u00eau d\u00f9ng. N\u1ebfu th\u1eddi gian x\u1eed l\u00fd cao, m\u00e3 ngu\u1ed3n c\u1ea7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a.<\/p>\n

            2. M\u00f4 h\u00ecnh h\u00f3a b\u0103ng th\u00f4ng<\/h3>\n

            B\u0103ng th\u00f4ng l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd m\u1ed7i \u0111\u01a1n v\u1ecb th\u1eddi gian. C\u00e1c s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 th\u1ec3 hi\u1ec7n t\u1ed1c \u0111\u1ed9 s\u1ef1 ki\u1ec7n v\u00e0o v\u00e0 ra kh\u1ecfi h\u1ec7 th\u1ed1ng. N\u1ebfu t\u1ed1c \u0111\u1ed9 \u0111\u1ea7u v\u00e0o v\u01b0\u1ee3t qu\u00e1 t\u1ed1c \u0111\u1ed9 \u0111\u1ea7u ra, h\u00e0ng \u0111\u1ee3i s\u1ebd t\u0103ng l\u00ean. D\u1ea5u hi\u1ec7u tr\u1ef1c quan n\u00e0y gi\u00fap c\u00e1c nh\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch dung l\u01b0\u1ee3ng \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh th\u00f4ng minh v\u1ec1 ph\u00e2n b\u1ed5 t\u00e0i nguy\u00ean.<\/p>\n

            Khi ph\u00e2n t\u00edch b\u0103ng th\u00f4ng, h\u00e3y xem x\u00e9t t\u1ea3i \u0111\u1ec9nh. M\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ec3 hi\u1ec7n hi\u1ec7u su\u1ea5t trung b\u00ecnh c\u00f3 th\u1ec3 che gi\u1ea5u c\u00e1c \u0111i\u1ec3m ngh\u1ebdn nghi\u00eam tr\u1ecdng x\u1ea3y ra trong c\u00e1c th\u1eddi \u0111i\u1ec3m \u0111\u1ec9nh l\u01b0u l\u01b0\u1ee3ng. H\u00e3y bao g\u1ed3m c\u00e1c t\u00ecnh hu\u1ed1ng ki\u1ec3m th\u1eed t\u1ea3i n\u1eb7ng trong qu\u00e1 tr\u00ecnh m\u00f4 h\u00ecnh h\u00f3a.<\/p>\n

            \ud83d\udd2e H\u01b0\u1edbng ph\u00e1t tri\u1ec3n t\u01b0\u01a1ng lai v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/h2>\n

            T\u01b0\u01a1ng lai c\u1ee7a s\u01a1 \u0111\u1ed3 th\u1eddi gian n\u1eb1m \u1edf t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 sinh ra \u0111\u1ed9ng. C\u00e1c t\u00e0i li\u1ec7u t\u0129nh kh\u00f3 duy tr\u00ec. Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, s\u01a1 \u0111\u1ed3 nhanh ch\u00f3ng tr\u1edf n\u00ean l\u1ed7i th\u1eddi. C\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00f4 h\u00ecnh h\u00f3a th\u1ebf h\u1ec7 ti\u1ebfp theo h\u01b0\u1edbng \u0111\u1ebfn vi\u1ec7c sinh ra s\u01a1 \u0111\u1ed3 t\u1eeb m\u00e3 ngu\u1ed3n ho\u1eb7c d\u1ea5u v\u1ebft th\u1eddi gian ch\u1ea1y.<\/p>\n

            Nh\u1eefng b\u01b0\u1edbc ti\u1ebfn ti\u1ec1m n\u0103ng bao g\u1ed3m:<\/p>\n

              \n
            • T\u1ef1 \u0111\u1ed9ng h\u00f3a sinh t\u1ea1o:<\/strong>C\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ecdc c\u00e1c kho m\u00e3 ngu\u1ed3n v\u00e0 t\u1ef1 \u0111\u1ed9ng t\u1ea1o s\u01a1 \u0111\u1ed3 th\u1eddi gian.<\/li>\n
            • Gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c:<\/strong>C\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt theo th\u1eddi gian th\u1ef1c d\u1ef1a tr\u00ean d\u1eef li\u1ec7u truy\u1ec1n t\u1eeb h\u1ec7 th\u1ed1ng.<\/li>\n
            • M\u00f4 h\u00ecnh d\u1ef1 \u0111o\u00e1n:<\/strong>S\u1eed d\u1ee5ng d\u1eef li\u1ec7u l\u1ecbch s\u1eed \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n h\u00e0nh vi th\u1eddi gian trong t\u01b0\u01a1ng lai.<\/li>\n<\/ul>\n

              S\u1ef1 thay \u0111\u1ed5i n\u00e0y gi\u1ea3m b\u1edbt g\u00e1nh n\u1eb7ng b\u1ea3o tr\u00ec. N\u00f3 \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u lu\u00f4n kh\u1edbp v\u1edbi tri\u1ec3n khai. Tuy nhi\u00ean, v\u1eabn c\u1ea7n s\u1ef1 gi\u00e1m s\u00e1t c\u1ee7a con ng\u01b0\u1eddi. C\u00e1c s\u01a1 \u0111\u1ed3 t\u1ef1 \u0111\u1ed9ng c\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed9n x\u1ed9n. C\u00e1c ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea3i l\u1ef1a ch\u1ecdn c\u00e1c g\u00f3c nh\u00ecn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00fang v\u1eabn d\u1ec5 \u0111\u1ecdc.<\/p>\n

              \ud83e\udde9 C\u00e1c t\u00ecnh hu\u1ed1ng v\u00ed d\u1ee5 trong h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n<\/h2>\n

              \u0110\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m n\u00e0y, h\u00e3y xem x\u00e9t m\u1ed9t lu\u1ed3ng x\u1eed l\u00fd \u0111\u01a1n h\u00e0ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed \u0111i\u1ec3n h\u00ecnh. H\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd t\u1ed3n kho, thanh to\u00e1n v\u00e0 v\u1eadn chuy\u1ec3n.<\/p>\n

              T\u00ecnh hu\u1ed1ng 1: \u0110\u1eb7t ch\u1ed7 t\u1ed3n kho<\/strong>
              \nKhi m\u1ed9t \u0111\u01a1n h\u00e0ng \u0111\u01b0\u1ee3c \u0111\u1eb7t, m\u1ed9t s\u1ef1 ki\u1ec7n OrderCreated<\/code> \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh. D\u1ecbch v\u1ee5 t\u1ed3n kho s\u1ebd ti\u00eau th\u1ee5 n\u00f3. M\u1ed9t s\u01a1 \u0111\u1ed3 th\u1eddi gian cho th\u1ea5y th\u1eddi gian c\u1ea7n \u0111\u1ec3 kh\u00f3a t\u1ed3n kho. N\u1ebfu vi\u1ec7c kh\u00f3a th\u1ea5t b\u1ea1i, m\u1ed9t s\u1ef1 ki\u1ec7n ReservationFailed<\/code> s\u1ebd \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. S\u01a1 \u0111\u1ed3 cho th\u1ea5y logic th\u1eed l\u1ea1i v\u00e0 th\u1eddi gian ch\u1edd.<\/p>\n

              T\u00ecnh hu\u1ed1ng 2: X\u1eed l\u00fd thanh to\u00e1n<\/strong>
              \nD\u1ecbch v\u1ee5 thanh to\u00e1n nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 ki\u1ec7n PaymentRequested<\/code> S\u1ef1 ki\u1ec7n. N\u00f3 giao ti\u1ebfp v\u1edbi m\u1ed9t ng\u00e2n h\u00e0ng b\u00ean ngo\u00e0i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra \u0111\u1ed9 tr\u1ec5 t\u1eeb b\u00ean ngo\u00e0i. S\u01a1 \u0111\u1ed3 ph\u1ea3i t\u00ednh \u0111\u1ebfn th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a ng\u00e2n h\u00e0ng. N\u00f3 c\u0169ng th\u1ec3 hi\u1ec7n ki\u1ec3m tra t\u00ednh kh\u00f4ng \u0111\u1ed5i \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c t\u00ednh ph\u00ed hai l\u1ea7n.<\/p>\n

              T\u00ecnh hu\u1ed1ng 3: Th\u1ef1c hi\u1ec7n \u0111\u01a1n h\u00e0ng<\/strong>
              \nM\u1ed9t khi thanh to\u00e1n \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, m\u1ed9t s\u1ef1 ki\u1ec7n PaymentConfirmed<\/code> \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. D\u1ecbch v\u1ee5 kho h\u00e0ng c\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i c\u1ee5c b\u1ed9 c\u1ee7a n\u00f3. S\u01a1 \u0111\u1ed3 th\u1eddi gian li\u00ean k\u1ebft vi\u1ec7c gi\u1ea3m t\u1ed3n kho v\u1edbi vi\u1ec7c kh\u1edfi t\u1ea1o v\u1eadn chuy\u1ec3n. N\u00f3 \u0111\u1ea3m b\u1ea3o c\u00e1c s\u1ef1 ki\u1ec7n n\u00e0y x\u1ea3y ra theo th\u1ee9 t\u1ef1 \u0111\u00fang \u0111\u1ec3 ng\u0103n ng\u1eeba b\u00e1n qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng.<\/p>\n

              \ud83d\udee1\ufe0f C\u00e1c c\u00e2n nh\u1eafc v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 th\u1eddi gian<\/h2>\n

              B\u1ea3o m\u1eadt th\u01b0\u1eddng b\u1ecb b\u1ecf qua trong ph\u00e2n t\u00edch th\u1eddi gian. Tuy nhi\u00ean, c\u00e1c b\u01b0\u1edbc x\u00e1c th\u1ef1c v\u00e0 \u1ee7y quy\u1ec1n s\u1ebd l\u00e0m t\u0103ng \u0111\u1ed9 tr\u1ec5. Trong h\u1ec7 th\u1ed1ng EDA, m\u1ecdi s\u1ef1 ki\u1ec7n \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c.<\/p>\n

              C\u00e1c y\u1ebfu t\u1ed1 th\u1eddi gian b\u1ea3o m\u1eadt ch\u00ednh bao g\u1ed3m:<\/p>\n

                \n
              • X\u00e1c th\u1ef1c token:<\/strong>Ki\u1ec3m tra c\u00e1c token JWT l\u00e0m t\u0103ng th\u00eam v\u00e0i mili gi\u00e2y v\u00e0o th\u1eddi gian x\u1eed l\u00fd.<\/li>\n
              • M\u00e3 h\u00f3a\/Gi\u1ea3i m\u00e3:<\/strong>Vi\u1ec7c b\u1ea3o m\u1eadt c\u00e1c tin nh\u1eafn trong qu\u00e1 tr\u00ecnh truy\u1ec1n t\u1ea3i v\u00e0 khi \u0111ang l\u01b0u tr\u1eef \u0111\u00f2i h\u1ecfi s\u1ee9c m\u1ea1nh x\u1eed l\u00fd.<\/li>\n
              • Ghi nh\u1eadt k\u00fd ki\u1ec3m to\u00e1n:<\/strong>Ghi l\u1ea1i m\u1ecdi s\u1ef1 ki\u1ec7n \u0111\u1ec3 tu\u00e2n th\u1ee7 ph\u00e1p l\u00fd s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed v\u1eadn h\u00e0nh.<\/li>\n<\/ul>\n

                C\u00e1c ki\u1ebfn tr\u00fac s\u01b0 ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u su\u1ea5t. S\u01a1 \u0111\u1ed3 th\u1eddi gian gi\u00fap tr\u1ef1c quan h\u00f3a chi ph\u00ed c\u1ee7a c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt n\u00e0y. N\u1ebfu b\u01b0\u1edbc x\u00e1c th\u1ef1c qu\u00e1 ch\u1eadm, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 c\u1ea7n s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb \u0111\u1ec7m ho\u1eb7c c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a t\u1ed1i \u01b0u.<\/p>\n

                \ud83d\udcdd T\u00f3m t\u1eaft qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n<\/h2>\n

                S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a s\u01a1 \u0111\u1ed3 th\u1eddi gian UML ph\u1ea3n \u00e1nh s\u1ef1 tr\u01b0\u1edfng th\u00e0nh c\u1ee7a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m. Ch\u00fang ta \u0111\u00e3 chuy\u1ec3n t\u1eeb c\u00e1c lu\u1ed3ng tuy\u1ebfn t\u00ednh \u0111\u01a1n gi\u1ea3n sang c\u00e1c m\u1ea1ng s\u1ef1 ki\u1ec7n ph\u00e2n t\u00e1n ph\u1ee9c t\u1ea1p. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111ang tr\u1edf n\u00ean tinh vi h\u01a1n \u0111\u1ec3 ph\u1ea3n \u00e1nh th\u1ef1c t\u1ebf n\u00e0y.<\/p>\n

                Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n l\u01b0u \u00fd cho c\u00e1c nh\u00e0 th\u1ef1c h\u00e0nh bao g\u1ed3m:<\/p>\n

                  \n
                • Kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng:<\/strong>C\u00e1c m\u00f4 h\u00ecnh ph\u1ea3i x\u1eed l\u00fd \u0111\u01b0\u1ee3c t\u00ednh kh\u00f4ng x\u00e1c \u0111\u1ecbnh v\u00e0 s\u1ef1 \u0111a d\u1ea1ng.<\/li>\n
                • \u0110\u1ed9 chi ti\u1ebft:<\/strong>T\u1eadp trung v\u00e0o c\u00e1c \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng v\u00e0 c\u00e1c \u0111i\u1ec3m ngh\u1ebdn hi\u1ec7u su\u1ea5t.<\/li>\n
                • T\u00edch h\u1ee3p:<\/strong>K\u1ebft n\u1ed1i m\u00f4 h\u00ecnh h\u00f3a v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t v\u00e0 kh\u1ea3 n\u0103ng quan s\u00e1t.<\/li>\n
                • R\u00f5 r\u00e0ng:<\/strong>Tr\u00e1nh l\u1ed9n x\u1ed9n. S\u1eed d\u1ee5ng ch\u00fa th\u00edch \u0111\u1ec3 gi\u1ea3i th\u00edch c\u00e1c r\u00e0ng bu\u1ed9c th\u1eddi gian ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n

                  Khi c\u00e1c h\u1ec7 th\u1ed1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u1ec1 \u0111\u1ed9 ph\u1ee9c t\u1ea1p, kh\u1ea3 n\u0103ng tr\u1ef1c quan h\u00f3a th\u1eddi gian tr\u1edf th\u00e0nh l\u1ee3i th\u1ebf c\u1ea1nh tranh. N\u00f3 gi\u00fap c\u00e1c \u0111\u1ed9i ng\u0169 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi ch\u00fang x\u1ea3y ra. N\u00f3 th\u00fac \u0111\u1ea9y giao ti\u1ebfp gi\u1eefa c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u1ed9i v\u1eadn h\u00e0nh. N\u00f3 \u0111\u1ea3m b\u1ea3o ki\u1ebfn tr\u00fac h\u1ed7 tr\u1ee3 c\u00e1c y\u00eau c\u1ea7u kinh doanh v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady.<\/p>\n

                  H\u00e0nh tr\u00ecnh t\u1eeb h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3 \u0111\u1ebfn h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n \u0111\u00e3 ho\u00e0n t\u1ea5t. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 l\u00e0m ch\u1ee7 vi\u1ec7c m\u00f4 h\u00ecnh h\u00f3a th\u1ef1c t\u1ebf m\u1edbi n\u00e0y. B\u1eb1ng c\u00e1ch c\u1eadp nh\u1eadt c\u00e1c s\u01a1 \u0111\u1ed3 th\u1eddi gian c\u1ee7a ch\u00fang ta, ch\u00fang ta \u0111\u1ea3m b\u1ea3o t\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n song song v\u1edbi h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh. S\u1ef1 \u0111\u1ed3ng b\u1ed9 n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng cho ph\u1ea7n m\u1ec1m m\u1ea1nh m\u1ebd, m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec.<\/p>\n","protected":false},"excerpt":{"rendered":"

                  Ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m \u0111ang tr\u1ea3i qua m\u1ed9t s\u1ef1 thay \u0111\u1ed5i c\u0103n b\u1ea3n. S\u1ef1 chuy\u1ec3n d\u1ecbch t\u1eeb c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01a1n th\u1ec3, \u0111\u1ed3ng b\u1ed9 sang m\u00f4i tr\u01b0\u1eddng ph\u00e2n t\u00e1n, b\u1ea5t…<\/p>\n","protected":false},"author":1,"featured_media":545,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u01a1 \u0111\u1ed3 th\u1eddi gian UML v\u00e0 Ki\u1ebfn tr\u00fac d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n: Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai","_yoast_wpseo_metadesc":"Kh\u00e1m ph\u00e1 c\u00e1ch s\u01a1 \u0111\u1ed3 th\u1eddi gian UML th\u00edch nghi v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n. Ph\u00e2n t\u00edch \u0111\u1ed9 tr\u1ec5, lu\u1ed3ng b\u1ea5t \u0111\u1ed3ng b\u1ed9 v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t trong m\u00f4 h\u00ecnh h\u00f3a cho ki\u1ebfn tr\u00fac hi\u1ec7n \u0111\u1ea1i.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[13],"tags":[39,43],"class_list":["post-544","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language","tag-academic","tag-timing-diagram"],"yoast_head":"\nS\u01a1 \u0111\u1ed3 th\u1eddi gian UML v\u00e0 Ki\u1ebfn tr\u00fac d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n: Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai<\/title>\n<meta name=\"description\" content=\"Kh\u00e1m ph\u00e1 c\u00e1ch s\u01a1 \u0111\u1ed3 th\u1eddi gian UML th\u00edch nghi v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean s\u1ef1 ki\u1ec7n. 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