{"id":964,"date":"2026-04-13T18:42:48","date_gmt":"2026-04-13T18:42:48","guid":{"rendered":"https:\/\/www.visualize-ai.com\/vi\/drawing-first-communication-diagram-guide\/"},"modified":"2026-04-13T18:42:48","modified_gmt":"2026-04-13T18:42:48","slug":"drawing-first-communication-diagram-guide","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/vi\/drawing-first-communication-diagram-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn: T\u1eeb \u0111\u1ea7u \u0111\u1ebfn c\u00f4ng b\u1ed1\u2014V\u1ebd s\u01a1 \u0111\u1ed3 giao ti\u1ebfp \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n"},"content":{"rendered":"

Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. Khi x\u00e2y d\u1ef1ng ph\u1ea7n m\u1ec1m ph\u1ee9c t\u1ea1p, vi\u1ec7c hi\u1ec3u c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c l\u00e0 \u0111i\u1ec1u then ch\u1ed1t. S\u01a1 \u0111\u1ed3 Giao ti\u1ebfp cung c\u1ea5p c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng v\u1ec1 c\u00e1c t\u01b0\u01a1ng t\u00e1c n\u00e0y. N\u00f3 t\u1eadp trung v\u00e0o lu\u1ed3ng tin nh\u1eafn gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thay v\u00ec th\u1eddi gian ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd d\u1eabn b\u1ea1n t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 t\u1eeb \u0111\u1ea7u.<\/p>\n

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

\ud83e\udde0 S\u01a1 \u0111\u1ed3 Giao ti\u1ebfp l\u00e0 g\u00ec?<\/h2>\n

S\u01a1 \u0111\u1ed3 Giao ti\u1ebfp l\u00e0 m\u1ed9t lo\u1ea1i s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML). N\u00f3 minh h\u1ecda c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c th\u00e0nh ph\u1ea7n kh\u00e1c nhau trong h\u1ec7 th\u1ed1ng trao \u0111\u1ed5i th\u00f4ng tin v\u1edbi nhau. Kh\u00e1c v\u1edbi c\u00e1c s\u01a1 \u0111\u1ed3 kh\u00e1c t\u1eadp trung nhi\u1ec1u v\u00e0o th\u1eddi gian, \u0111\u1ecbnh d\u1ea1ng n\u00e0y \u01b0u ti\u00ean m\u1ed1i quan h\u1ec7 c\u1ea5u tr\u00fac v\u00e0 th\u1ee9 t\u1ef1 tin nh\u1eafn.<\/p>\n

    \n
  • Tr\u1ecdng t\u00e2m:<\/strong> T\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
  • Phong c\u00e1ch tr\u1ef1c quan:<\/strong> C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u1eb7t theo kh\u00f4ng gian, k\u1ebft n\u1ed1i v\u1edbi nhau b\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng.<\/li>\n
  • \u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh:<\/strong> C\u00e1c m\u0169i t\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 \u0111\u1ec3 th\u1ec3 hi\u1ec7n th\u1ee9 t\u1ef1 tin nh\u1eafn.<\/li>\n
  • Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> M\u00f4 t\u1ea3 m\u1ed9t t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 ho\u1eb7c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u00ean trong ph\u1ea7n m\u1ec1m.<\/li>\n<\/ul>\n

    N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 v\u00e0 nh\u00e0 ph\u00e1t tri\u1ec3n s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch logic tr\u01b0\u1edbc khi vi\u1ebft m\u00e3. B\u1eb1ng c\u00e1ch v\u1ebd ra c\u00e1c k\u1ebft n\u1ed1i n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c \u0111i\u1ec3m ngh\u1ebdn ti\u1ec1m \u1ea9n ho\u1eb7c logic b\u1ecb thi\u1ebfu trong giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n.<\/p>\n

    \ud83d\udee0\ufe0f C\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a s\u01a1 \u0111\u1ed3<\/h2>\n

    Tr\u01b0\u1edbc khi v\u1ebd, b\u1ea1n ph\u1ea3i hi\u1ec3u r\u00f5 c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng. M\u1ed7i th\u00e0nh ph\u1ea7n \u0111\u1ec1u c\u00f3 m\u1ee5c \u0111\u00edch c\u1ee5 th\u1ec3 trong vi\u1ec7c truy\u1ec1n \u0111\u1ea1t th\u00f4ng tin.<\/p>\n

    1. \u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 Vai tr\u00f2<\/h3>\n

    C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ea1i di\u1ec7n cho c\u00e1c th\u1ec3 hi\u1ec7n c\u1ee7a l\u1edbp ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng. Trong s\u01a1 \u0111\u1ed3, ch\u00fang xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng h\u00ecnh ch\u1eef nh\u1eadt. B\u1ea1n c\u00f3 th\u1ec3 g\u00e1n nh\u00e3n cho ch\u00fang b\u1eb1ng t\u00ean l\u1edbp ho\u1eb7c t\u00ean vai tr\u00f2 c\u1ee5 th\u1ec3.<\/p>\n

      \n
    • T\u00ean th\u1ec3 hi\u1ec7n:<\/strong> v\u00ed d\u1ee5:userAccount1<\/em><\/li>\n
    • T\u00ean l\u1edbp:<\/strong> v\u00ed d\u1ee5:AuthenticationService<\/em><\/li>\n
    • V\u1ecb tr\u00ed:<\/strong> \u0110\u1eb7t ch\u00fang m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd \u0111\u1ec3 ph\u1ea3n \u00e1nh m\u1ed1i quan h\u1ec7 c\u1ee7a ch\u00fang trong h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n

      2. Li\u00ean k\u1ebft<\/h3>\n

      C\u00e1c li\u00ean k\u1ebft \u0111\u1ea1i di\u1ec7n cho c\u00e1c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Ch\u00fang l\u00e0 c\u00e1c \u0111\u01b0\u1eddng th\u1eb3ng n\u1ed1i c\u00e1c h\u00ecnh ch\u1eef nh\u1eadt. M\u1ed9t li\u00ean k\u1ebft ng\u1ee5 \u00fd r\u1eb1ng m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 g\u1eedi tin nh\u1eafn cho \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c.<\/p>\n

        \n
      • H\u01b0\u1edbng:<\/strong> M\u1eb7c d\u00f9 \u0111\u01b0\u1eddng th\u1eb3ng l\u00e0 t\u0129nh, c\u00e1c m\u0169i t\u00ean tin nh\u1eafn s\u1ebd ch\u1ec9 ra h\u01b0\u1edbng.<\/li>\n
      • \u0110a d\u1ea1ng:<\/strong> M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 cho ph\u00e9p b\u1ea1n \u0111\u00e1nh d\u1ea5u xem m\u1ed9t li\u00ean k\u1ebft \u0111\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 1-1 hay 1-nhi\u1ec1u.<\/li>\n<\/ul>\n

        3. Tin nh\u1eafn<\/h3>\n

        C\u00e1c tin nh\u1eafn l\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng \u0111ang \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. Ch\u00fang \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c m\u0169i t\u00ean d\u1ecdc theo c\u00e1c li\u00ean k\u1ebft. M\u0169i t\u00ean ch\u1ec9 t\u1eeb ng\u01b0\u1eddi g\u1eedi \u0111\u1ebfn ng\u01b0\u1eddi nh\u1eadn.<\/p>\n

          \n
        • Nh\u00e3n:<\/strong> T\u00ean c\u1ee7a thao t\u00e1c ho\u1eb7c h\u00e0m \u0111ang \u0111\u01b0\u1ee3c g\u1ecdi.<\/li>\n
        • S\u1ed1 th\u1ee9 t\u1ef1:<\/strong> M\u1ed9t s\u1ed1 (1, 2, 3\u2026) \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc nh\u00e3n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1ee9 t\u1ef1.<\/li>\n
        • Lo\u1ea1i:<\/strong> C\u00f3 th\u1ec3 l\u00e0 \u0111\u1ed3ng b\u1ed9 (ch\u1eb7n) ho\u1eb7c b\u1ea5t \u0111\u1ed3ng b\u1ed9 (kh\u00f4ng ch\u1eb7n).<\/li>\n<\/ul>\n

          \ud83d\udcdd H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 v\u1ebd<\/h2>\n

          Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 bao g\u1ed3m m\u1ed9t tr\u00ecnh t\u1ef1 h\u1ee3p l\u00fd. H\u00e3y tu\u00e2n theo c\u00e1c b\u01b0\u1edbc n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 r\u00f5 r\u00e0ng.<\/p>\n

          B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh ph\u1ea1m vi v\u00e0 c\u00e1c t\u00e1c nh\u00e2n<\/h3>\n

          B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n b\u00ean ngo\u00e0i v\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng n\u1ed9i b\u1ed9 tham gia. H\u00e3y t\u1ef1 h\u1ecfi b\u1ea3n th\u00e2n: \u0110i\u1ec1u g\u00ec l\u00e0 kh\u1edfi ngu\u1ed3n cho t\u01b0\u01a1ng t\u00e1c n\u00e0y?<\/p>\n

            \n
          • Li\u1ec7u \u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 ng\u01b0\u1eddi d\u00f9ng nh\u1ea5p v\u00e0o m\u1ed9t n\u00fat?<\/li>\n
          • Li\u1ec7u \u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng vi\u1ec7c n\u1ec1n \u0111\u01b0\u1ee3c l\u00ean l\u1ecbch?<\/li>\n
          • Li\u1ec7u \u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t y\u00eau c\u1ea7u API \u0111\u1ebfn?<\/li>\n<\/ul>\n

            Ghi l\u1ea1i t\u00e1c nh\u00e2n ch\u00ednh. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u c\u1ee7a s\u01a1 \u0111\u1ed3 c\u1ee7a b\u1ea1n.<\/p>\n

            B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng<\/h3>\n

            Li\u1ec7t k\u00ea c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u1ed9 c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t. Kh\u00f4ng bao g\u1ed3m c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng tr\u1ef1c ti\u1ebfp tham gia v\u00e0o t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 n\u00e0y. H\u00e3y gi\u1eef cho n\u00f3 t\u1eadp trung.<\/p>\n

              \n
            • B\u1ed9 k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/li>\n
            • D\u1ecbch v\u1ee5 x\u00e1c th\u1ef1c<\/li>\n
            • Module th\u00f4ng b\u00e1o<\/li>\n
            • B\u1ed9 x\u1eed l\u00fd ph\u1ea3n h\u1ed3i<\/li>\n<\/ul>\n

              B\u01b0\u1edbc 3: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c k\u1ebft n\u1ed1i<\/h3>\n

              V\u1ebd c\u00e1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n giao ti\u1ebfp v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. N\u1ebfu m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng b\u1ecb t\u00e1ch bi\u1ec7t, n\u00f3 kh\u00f4ng th\u1ec3 tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c.<\/p>\n

              B\u01b0\u1edbc 4: S\u1eafp x\u1ebfp c\u00e1c tin nh\u1eafn<\/h3>\n

              \u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t. V\u1ebd c\u00e1c m\u0169i t\u00ean v\u00e0 g\u00e1n s\u1ed1. S\u1ed1 n\u00e0y \u0111\u1ea1i di\u1ec7n cho th\u1ee9 t\u1ef1 th\u1ef1c thi.<\/p>\n

                \n
              • B\u1eaft \u0111\u1ea7u:<\/strong> S\u1ed1 1 lu\u00f4n l\u00e0 tin nh\u1eafn \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c g\u1eedi.<\/li>\n
              • L\u1ed3ng gh\u00e9p:<\/strong> N\u1ebfu m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng g\u1ecdi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c, v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ee9 hai n\u00e0y g\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ee9 ba, c\u00e1c s\u1ed1 s\u1ebd ti\u1ebfp t\u1ee5c theo th\u1ee9 t\u1ef1 tu\u1ea7n t\u1ef1.<\/li>\n
              • Tin nh\u1eafn tr\u1ea3 v\u1ec1:<\/strong>B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb gi\u00e1 tr\u1ecb tr\u1ea3 v\u1ec1 b\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t, m\u1eb7c d\u00f9 th\u01b0\u1eddng th\u00ec ch\u00fang \u0111\u01b0\u1ee3c ng\u1ea7m hi\u1ec3u.<\/li>\n<\/ul>\n

                B\u01b0\u1edbc 5: Xem x\u00e9t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u00f5 r\u00e0ng<\/h3>\n

                H\u00e3y xem s\u01a1 \u0111\u1ed3. C\u00f3 ai \u0111\u1ecdc \u0111\u01b0\u1ee3c n\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1eb7t c\u00e2u h\u1ecfi kh\u00f4ng? Lu\u1ed3ng tr\u1ef1c quan ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi lu\u1ed3ng logic c\u1ee7a m\u00e3 ngu\u1ed3n.<\/p>\n

                \ud83d\udcca S\u01a1 \u0111\u1ed3 giao ti\u1ebfp so v\u1edbi s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n

                C\u1ea3 hai s\u01a1 \u0111\u1ed3 \u0111\u1ec1u th\u1ec3 hi\u1ec7n c\u00e1c t\u01b0\u01a1ng t\u00e1c, nh\u01b0ng ch\u00fang nh\u1ea5n m\u1ea1nh v\u00e0o c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c nhau. H\u00e3y d\u00f9ng b\u1ea3ng \u0111\u1ec3 so s\u00e1nh ch\u00fang.<\/p>\n\n\n\n\n\n\n\n\n
                T\u00ednh n\u0103ng<\/th>\nS\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/th>\nS\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/th>\n<\/tr>\n<\/thead>\n
                Tr\u1ecdng t\u00e2m ch\u00ednh<\/strong><\/td>\nM\u1ed1i quan h\u1ec7 v\u00e0 c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\nTh\u1eddi gian v\u00e0 th\u1ee9 t\u1ef1 c\u1ee7a c\u00e1c tin nh\u1eafn<\/td>\n<\/tr>\n
                B\u1ed1 c\u1ee5c<\/strong><\/td>\nS\u1eafp x\u1ebfp kh\u00f4ng gian linh ho\u1ea1t<\/td>\nD\u00f2ng th\u1eddi gian theo chi\u1ec1u d\u1ecdc<\/td>\n<\/tr>\n
                \u0110\u1ed9 d\u1ec5 \u0111\u1ecdc<\/strong><\/td>\nT\u1ed1t h\u01a1n cho c\u00e1c nh\u00e1nh ph\u1ee9c t\u1ea1p<\/td>\nT\u1ed1t h\u01a1n cho c\u00e1c lu\u1ed3ng tuy\u1ebfn t\u00ednh<\/td>\n<\/tr>\n
                S\u1ed1 th\u1ee9 t\u1ef1<\/strong><\/td>\nB\u1eaft bu\u1ed9c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1ee9 t\u1ef1<\/td>\nNg\u1ea7m hi\u1ec3u th\u00f4ng qua v\u1ecb tr\u00ed theo chi\u1ec1u d\u1ecdc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                Ch\u1ecdn s\u01a1 \u0111\u1ed3 giao ti\u1ebfp khi m\u1ed1i quan h\u1ec7 c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng quan tr\u1ecdng h\u01a1n th\u1eddi gian ch\u00ednh x\u00e1c. Ch\u1ecdn s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 khi th\u1eddi gian v\u00e0 th\u1eddi gian s\u1ed1ng c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n

                \u2705 C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho b\u1ea3o tr\u00ec<\/h2>\n

                S\u01a1 \u0111\u1ed3 l\u00e0 t\u00e0i li\u1ec7u. Ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec khi m\u00e3 ngu\u1ed3n thay \u0111\u1ed5i. M\u1ed9t s\u01a1 \u0111\u1ed3 kh\u00f4ng kh\u1edbp v\u1edbi m\u00e3 ngu\u1ed3n c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3 n\u00e0o.<\/p>\n

                  \n
                • Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong>Tr\u00e1nh l\u00e0m r\u1ed1i m\u00e0n h\u00ecnh b\u1eb1ng qu\u00e1 nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng. Chia c\u00e1c t\u00ecnh hu\u1ed1ng ph\u1ee9c t\u1ea1p th\u00e0nh nhi\u1ec1u s\u01a1 \u0111\u1ed3.<\/li>\n
                • T\u00ean g\u1ecdi nh\u1ea5t qu\u00e1n:<\/strong>\u0110\u1ea3m b\u1ea3o t\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng trong s\u01a1 \u0111\u1ed3 tr\u00f9ng kh\u1edbp v\u1edbi m\u00e3 ngu\u1ed3n.<\/li>\n
                • Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong> L\u01b0u c\u00e1c t\u1ec7p s\u01a1 \u0111\u1ed3 b\u00ean c\u1ea1nh m\u00e3 ngu\u1ed3n c\u1ee7a b\u1ea1n ho\u1eb7c trong m\u1ed9t kho t\u00e0i li\u1ec7u chuy\u00ean d\u1ee5ng.<\/li>\n
                • Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3:<\/strong> Xem x\u00e9t c\u00e1c s\u01a1 \u0111\u1ed3 trong qu\u00e1 tr\u00ecnh l\u1eadp k\u1ebf ho\u1ea1ch sprint ho\u1eb7c trong c\u00e1c bu\u1ed5i xem x\u00e9t m\u00e3 ngu\u1ed3n.<\/li>\n
                • T\u1eadp trung v\u00e0o logic:<\/strong> \u0110\u1eebng v\u1ebd s\u01a1 \u0111\u1ed3 cho m\u1ecdi ph\u01b0\u01a1ng th\u1ee9c getter hay setter. H\u00e3y t\u1eadp trung v\u00e0o lu\u1ed3ng logic kinh doanh.<\/li>\n<\/ul>\n

                  \ud83d\udeab Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/h2>\n

                  Ngay c\u1ea3 nh\u1eefng nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. H\u00e3y c\u1ea3nh gi\u00e1c v\u1edbi nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn n\u00e0y.<\/p>\n

                  1. Thi\u1ebfu th\u00f4ng \u0111i\u1ec7p tr\u1ea3 v\u1ec1<\/h3>\n

                  M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng b\u1eaft bu\u1ed9c, nh\u01b0ng vi\u1ec7c hi\u1ec3n th\u1ecb \u0111\u01b0\u1eddng d\u1eabn tr\u1ea3 v\u1ec1 c\u00f3 th\u1ec3 l\u00e0m r\u00f5 c\u00e1ch x\u1eed l\u00fd l\u1ed7i ho\u1eb7c lu\u1ed3ng d\u1eef li\u1ec7u. N\u1ebfu m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c tr\u1ea3 v\u1ec1 gi\u00e1 tr\u1ecb, h\u00e3y c\u00e2n nh\u1eafc vi\u1ec7c ghi ch\u00fa l\u1ea1i \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

                  2. G\u00e1n s\u1ed1 kh\u00f4ng r\u00f5 r\u00e0ng<\/h3>\n

                  N\u1ebfu b\u1ea1n c\u00f3 c\u00e1c quy tr\u00ecnh song song, h\u00e3y \u0111\u1ea3m b\u1ea3o s\u1ed1 th\u1ee9 t\u1ef1 c\u1ee7a b\u1ea1n ph\u1ea3n \u00e1nh \u0111\u00fang t\u00ednh \u0111\u1ed3ng th\u1eddi. S\u1eed d\u1ee5ng s\u1ed1 ph\u1ee5 (v\u00ed d\u1ee5: 1.1, 1.2) n\u1ebfu c\u00e1c h\u00e0nh \u0111\u1ed9ng x\u1ea3y ra \u0111\u1ed3ng th\u1eddi.<\/p>\n

                  3. Qu\u00e1 m\u1ee9c thi\u1ebft k\u1ebf<\/h3>\n

                  \u0110\u1eebng v\u1ebd s\u01a1 \u0111\u1ed3 to\u00e0n b\u1ed9 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng trong m\u1ed9t t\u1ec7p. H\u00e3y ch\u1ecdn m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3. M\u1ed9t s\u01a1 \u0111\u1ed3 c\u00f3 50 \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd r\u1ea5t kh\u00f3 \u0111\u1ecdc v\u00e0 kh\u00f3 b\u1ea3o tr\u00ec.<\/p>\n

                  4. B\u1ecf qua c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed7i<\/h3>\n

                  C\u00e1c lu\u1ed3ng ti\u00eau chu\u1ea9n d\u1ec5 v\u1ebd. Tuy nhi\u00ean, x\u1eed l\u00fd ngo\u1ea1i l\u1ec7 th\u01b0\u1eddng b\u1ecb b\u1ecf qu\u00ean. H\u00e3y bao g\u1ed3m c\u00e1c \u0111\u01b0\u1eddng \u0111i khi k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u1ea5t b\u1ea1i ho\u1eb7c x\u00e1c th\u1ef1c b\u1ecb t\u1eeb ch\u1ed1i.<\/p>\n

                  \ud83d\udd0d T\u00ecm hi\u1ec3u s\u00e2u: C\u00e1c lo\u1ea1i tin nh\u1eafn<\/h2>\n

                  Hi\u1ec3u \u0111\u01b0\u1ee3c lo\u1ea1i tin nh\u1eafn s\u1ebd gi\u00fap qu\u00e1 tr\u00ecnh tri\u1ec3n khai hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

                    \n
                  • G\u1ecdi:<\/strong> Ng\u01b0\u1eddi g\u1eedi ch\u1edd ph\u1ea3n h\u1ed3i. \u0110\u00e2y l\u00e0 gi\u1ea3 \u0111\u1ecbnh m\u1eb7c \u0111\u1ecbnh.<\/li>\n
                  • T\u00edn hi\u1ec7u:<\/strong> Ng\u01b0\u1eddi g\u1eedi kh\u00f4ng ch\u1edd \u0111\u1ee3i. G\u1eedi \u0111i r\u1ed3i qu\u00ean.<\/li>\n
                  • Tr\u1ea3 v\u1ec1:<\/strong> Ph\u1ea3n h\u1ed3i l\u1ea1i ng\u01b0\u1eddi g\u1ecdi. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n.<\/li>\n<\/ul>\n

                    Khi v\u1ebd, h\u00e3y d\u00f9ng m\u0169i t\u00ean li\u1ec1n cho c\u00e1c cu\u1ed9c g\u1ecdi v\u00e0 t\u00edn hi\u1ec7u. D\u00f9ng m\u0169i t\u00ean \u0111\u1ee9t \u0111o\u1ea1n cho c\u00e1c ph\u1ea3n h\u1ed3i. S\u1ef1 ph\u00e2n bi\u1ec7t h\u00ecnh \u1ea3nh n\u00e0y gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n hi\u1ec3u r\u00f5 h\u00e0nh vi ch\u1eb7n.<\/p>\n

                    \ud83d\udcc8 T\u1eeb b\u1ea3n nh\u00e1p \u0111\u1ebfn c\u00f4ng b\u1ed1<\/h2>\n

                    Sau khi s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c v\u1ebd xong, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c chia s\u1ebb v\u1edbi \u0111\u1ed9i nh\u00f3m. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ho\u00e0n thi\u1ec7n n\u00f3.<\/p>\n

                      \n
                    1. T\u00f9y ch\u1ecdn xu\u1ea5t:<\/strong> H\u1ea7u h\u1ebft c\u00e1c tr\u00ecnh ch\u1ec9nh s\u1eeda cho ph\u00e9p xu\u1ea5t sang PDF, PNG ho\u1eb7c SVG. Ch\u1ecdn \u0111\u1ecbnh d\u1ea1ng d\u1ef1a tr\u00ean n\u01a1i m\u00e0 s\u01a1 \u0111\u1ed3 s\u1ebd \u0111\u01b0\u1ee3c xem.<\/li>\n
                    2. Li\u00ean k\u1ebft t\u00e0i li\u1ec7u:<\/strong> Ch\u00e8n h\u00ecnh \u1ea3nh v\u00e0o t\u1ec7p README ho\u1eb7c Wiki c\u1ee7a d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/li>\n
                    3. Xem x\u00e9t b\u1edfi \u0111\u1ed3ng nghi\u1ec7p:<\/strong>Y\u00eau c\u1ea7u m\u1ed9t \u0111\u1ed3ng nghi\u1ec7p theo d\u00f5i lu\u1ed3ng m\u00e0 kh\u00f4ng nh\u00ecn v\u00e0o m\u00e3 ngu\u1ed3n. N\u1ebfu h\u1ecd b\u1ecb m\u1eafc k\u1eb9t, s\u01a1 \u0111\u1ed3 l\u00e0 kh\u00f4ng r\u00f5 r\u00e0ng.<\/li>\n
                    4. L\u1ecbch c\u1eadp nh\u1eadt:<\/strong>\u0110\u1eb7t l\u1eddi nh\u1eafc \u0111\u1ec3 c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 sau khi refactoring l\u1edbn.<\/li>\n<\/ol>\n

                      \ud83e\udde9 T\u00ecnh hu\u1ed1ng v\u00ed d\u1ee5: \u0110\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng<\/h2>\n

                      H\u00e3y h\u00ecnh dung m\u1ed9t quy tr\u00ecnh \u0111\u0103ng nh\u1eadp \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 c\u1ee7ng c\u1ed1 c\u00e1c kh\u00e1i ni\u1ec7m.<\/p>\n

                        \n
                      • Ng\u01b0\u1eddi tham gia:<\/strong>Ng\u01b0\u1eddi d\u00f9ng<\/li>\n
                      • \u0110\u1ed1i t\u01b0\u1ee3ng 1:<\/strong>LoginController<\/li>\n
                      • \u0110\u1ed1i t\u01b0\u1ee3ng 2:<\/strong>UserService<\/li>\n
                      • \u0110\u1ed1i t\u01b0\u1ee3ng 3:<\/strong>C\u01a1 s\u1edf d\u1eef li\u1ec7u<\/li>\n<\/ul>\n

                        Lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 sau:<\/p>\n

                          \n
                        1. Ng\u01b0\u1eddi d\u00f9ng g\u1eedi th\u00f4ng tin x\u00e1c th\u1ef1c \u0111\u1ebfn LoginController (1).<\/li>\n
                        2. LoginController y\u00eau c\u1ea7u d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng t\u1eeb UserService (2).<\/li>\n
                        3. UserService truy v\u1ea5n C\u01a1 s\u1edf d\u1eef li\u1ec7u (3).<\/li>\n
                        4. C\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ea3 v\u1ec1 d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng cho UserService (4).<\/li>\n
                        5. UserService x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u v\u00e0 tr\u1ea3 k\u1ebft qu\u1ea3 v\u1ec1 cho Controller (5).<\/li>\n
                        6. Controller g\u1eedi th\u00f4ng b\u00e1o \u0111\u0103ng nh\u1eadp th\u00e0nh c\u00f4ng \u0111\u1ebfn Ng\u01b0\u1eddi d\u00f9ng (6).<\/li>\n<\/ol>\n

                          Lu\u1ed3ng tuy\u1ebfn t\u00ednh n\u00e0y d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n tr\u00ean s\u01a1 \u0111\u1ed3 giao ti\u1ebfp. \u0110\u1eb7t c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng theo h\u00ecnh tr\u00f2n ho\u1eb7c \u0111\u01b0\u1eddng th\u1eb3ng. V\u1ebd c\u00e1c li\u00ean k\u1ebft. \u0110\u00e1nh s\u1ed1 c\u00e1c m\u0169i t\u00ean.<\/p>\n

                          \ud83d\udee1\ufe0f \u0110\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c<\/h2>\n

                          \u0110\u1ed9 ch\u00ednh x\u00e1c l\u00e0 \u0111\u1ed3ng ti\u1ec1n c\u1ee7a t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt. M\u1ed9t s\u01a1 \u0111\u1ed3 sai s\u1ebd d\u1eabn \u0111\u1ebfn m\u00e3 ngu\u1ed3n sai.<\/p>\n

                            \n
                          • X\u00e1c minh v\u1edbi m\u00e3 ngu\u1ed3n:<\/strong>\u0110\u1eebng \u0111o\u00e1n. Ki\u1ec3m tra \u0111\u1ecbnh ngh\u0129a l\u1edbp th\u1ef1c t\u1ebf.<\/li>\n
                          • Ki\u1ec3m tra c\u00e1c ph\u1ee5 thu\u1ed9c:<\/strong>\u0110\u1ea3m b\u1ea3o r\u1eb1ng n\u1ebfu \u0110\u1ed1i t\u01b0\u1ee3ng A g\u1ecdi \u0110\u1ed1i t\u01b0\u1ee3ng B, th\u00ec \u0110\u1ed1i t\u01b0\u1ee3ng A th\u1ef1c s\u1ef1 c\u00f3 tham chi\u1ebfu \u0111\u1ebfn \u0110\u1ed1i t\u01b0\u1ee3ng B.<\/li>\n
                          • Xem x\u00e9t c\u00e1c m\u1eabu ki\u1ebfn tr\u00fac:<\/strong>\u0110\u1ea3m b\u1ea3o s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p v\u1edbi m\u1eabu \u0111\u00e3 ch\u1ecdn (v\u00ed d\u1ee5: MVC, Microservices).<\/li>\n<\/ul>\n

                            \ud83d\udd04 C\u1ea3i ti\u1ebfn theo t\u1eebng b\u01b0\u1edbc<\/h2>\n

                            Thi\u1ebft k\u1ebf l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh l\u1eb7p l\u1ea1i. S\u01a1 \u0111\u1ed3 \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n s\u1ebd kh\u00f4ng ho\u00e0n h\u1ea3o. H\u00e3y chu\u1ea9n b\u1ecb v\u1ebd l\u1ea1i n\u00f3.<\/p>\n

                              \n
                            • T\u00e1i c\u1ea5u tr\u00fac b\u1ed1 c\u1ee5c:<\/strong>Di chuy\u1ec3n c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ec3 gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng giao nhau c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng n\u1ed1i.<\/li>\n
                            • T\u00e1i c\u1ea5u tr\u00fac nh\u00e3n:<\/strong>\u0110\u1eb7t t\u00ean tin nh\u1eafn mang t\u00ednh m\u00f4 t\u1ea3 h\u01a1n.<\/li>\n
                            • T\u00e1i c\u1ea5u tr\u00fac ph\u1ea1m vi:<\/strong>Chia nh\u1ecf s\u01a1 \u0111\u1ed3 n\u1ebfu n\u00f3 tr\u1edf n\u00ean qu\u00e1 l\u1edbn.<\/li>\n<\/ul>\n

                              Qu\u00e1 tr\u00ecnh tinh ch\u1ec9nh n\u00e0y l\u00e0 \u0111i\u1ec1u b\u00ecnh th\u01b0\u1eddng. N\u00f3 d\u1eabn \u0111\u1ebfn s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n v\u1ec1 h\u1ec7 th\u1ed1ng. \u0110\u1eebng s\u1ee3 thay \u0111\u1ed5i b\u1ea3n v\u1ebd. \u0110\u00f3 l\u00e0 c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 suy ngh\u0129, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u1ec3 tr\u00ecnh b\u00e0y.<\/p>\n

                              \ud83d\udcda T\u00e0i nguy\u00ean \u0111\u1ec3 h\u1ecdc t\u1eadp s\u00e2u h\u01a1n<\/h2>\n

                              \u0110\u1ec3 m\u1edf r\u1ed9ng ki\u1ebfn th\u1ee9c c\u1ee7a b\u1ea1n, h\u00e3y kh\u00e1m ph\u00e1 c\u00e1c l\u0129nh v\u1ef1c sau.<\/p>\n

                                \n
                              • Chu\u1ea9n UML:<\/strong>\u0110\u1ecdc c\u00e1c \u0111\u1ecbnh ngh\u0129a ch\u00ednh th\u1ee9c v\u1ec1 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c.<\/li>\n
                              • M\u1eabu thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng:<\/strong>Nghi\u00ean c\u1ee9u c\u00e1c m\u1eabu ph\u1ed5 bi\u1ebfn nh\u01b0 Singleton hay Factory \u0111\u1ec3 hi\u1ec3u c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau.<\/li>\n
                              • Th\u1ef1c h\u00e0nh ki\u1ec3m tra m\u00e3 ngu\u1ed3n:<\/strong>H\u1ecdc c\u00e1ch c\u00e1c s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong quy tr\u00ecnh ki\u1ec3m tra m\u00e3 ngu\u1ed3n hi\u1ec7n \u0111\u1ea1i.<\/li>\n<\/ul>\n

                                X\u00e2y d\u1ef1ng s\u01a1 \u0111\u1ed3 giao ti\u1ebfp l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n qua th\u1ef1c h\u00e0nh. N\u00f3 bu\u1ed9c b\u1ea1n ph\u1ea3i suy ngh\u0129 v\u1ec1 c\u00e1c k\u1ebft n\u1ed1i v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u. Theo th\u1eddi gian, b\u1ea1n s\u1ebd t\u1ef1 m\u00ecnh h\u00ecnh dung c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y trong \u0111\u1ea7u ngay c\u1ea3 tr\u01b0\u1edbc khi m\u1edf c\u00f4ng c\u1ee5 v\u1ebd.<\/p>\n

                                \ud83c\udfc1 T\u00f3m t\u1eaft cu\u1ed1i c\u00f9ng<\/h2>\n

                                H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u00e3 bao qu\u00e1t nh\u1eefng y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 giao ti\u1ebfp. B\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 bi\u1ebft c\u00e1c th\u00e0nh ph\u1ea7n, c\u00e1c b\u01b0\u1edbc v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t. H\u00e3y s\u1eed d\u1ee5ng nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y \u0111\u1ec3 c\u1ea3i thi\u1ec7n thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n

                                  \n
                                • B\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t ph\u1ea1m vi r\u00f5 r\u00e0ng.<\/li>\n
                                • X\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 li\u00ean k\u1ebft.<\/li>\n
                                • \u0110\u00e1nh s\u1ed1 tin nh\u1eafn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1ee9 t\u1ef1.<\/li>\n
                                • Xem x\u00e9t v\u00e0 duy tr\u00ec th\u01b0\u1eddng xuy\u00ean.<\/li>\n<\/ul>\n

                                  B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 tr\u1edf th\u00e0nh t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 cho \u0111\u1ed9i ph\u00e1t tri\u1ec3n c\u1ee7a m\u00ecnh. Ch\u00fang t\u1ea1o n\u00ean c\u1ea7u n\u1ed1i gi\u1eefa c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng v\u00e0 vi\u1ec7c tri\u1ec3n khai m\u00e3 ngu\u1ed3n c\u1ee5 th\u1ec3.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                  Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. Khi x\u00e2y d\u1ef1ng ph\u1ea7n m\u1ec1m ph\u1ee9c t\u1ea1p, vi\u1ec7c hi\u1ec3u c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c l\u00e0 \u0111i\u1ec1u then ch\u1ed1t. S\u01a1 \u0111\u1ed3…<\/p>\n","protected":false},"author":1,"featured_media":965,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"V\u1ebd s\u01a1 \u0111\u1ed3 giao ti\u1ebfp \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n: H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \ud83d\udcca","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 giao ti\u1ebfp UML t\u1eeb \u0111\u1ea7u. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, li\u00ean k\u1ebft v\u00e0 lu\u1ed3ng tin nh\u1eafn \u0111\u1ec3 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng t\u1ed1t h\u01a1n. Kh\u00f4ng c\u1ea7n ph\u1ea7n m\u1ec1m n\u00e0o.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[35],"tags":[40,55],"class_list":["post-964","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-communication-diagram"],"yoast_head":"\nV\u1ebd s\u01a1 \u0111\u1ed3 giao ti\u1ebfp \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n: H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc \ud83d\udcca<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1ch t\u1ea1o s\u01a1 \u0111\u1ed3 giao ti\u1ebfp UML t\u1eeb \u0111\u1ea7u. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, li\u00ean k\u1ebft v\u00e0 lu\u1ed3ng tin nh\u1eafn \u0111\u1ec3 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng t\u1ed1t h\u01a1n. 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