{"id":669,"date":"2026-03-28T22:54:41","date_gmt":"2026-03-28T22:54:41","guid":{"rendered":"https:\/\/www.visualize-ai.com\/vi\/beginners-guide-to-ooa-d-from-requirements-to-code\/"},"modified":"2026-03-28T22:54:41","modified_gmt":"2026-03-28T22:54:41","slug":"beginners-guide-to-ooa-d-from-requirements-to-code","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/vi\/beginners-guide-to-ooa-d-from-requirements-to-code\/","title":{"rendered":"T\u1eeb Y\u00eau c\u1ea7u \u0111\u1ebfn M\u00e3 ngu\u1ed3n: H\u00e0nh tr\u00ecnh d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 Ph\u00e2n t\u00edch v\u00e0 Thi\u1ebft k\u1ebf H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng"},"content":{"rendered":"

Vi\u1ec7c x\u00e2y d\u1ef1ng ph\u1ea7n m\u1ec1m th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi vi\u1ec7c ch\u1ec9 g\u00f5 m\u00e3 cho \u0111\u1ebfn khi n\u00f3 ho\u1ea1t \u0111\u1ed9ng. Tuy nhi\u00ean, c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 kinh nghi\u1ec7m \u0111\u1ec1u bi\u1ebft r\u1eb1ng \u0111i\u1ec1u k\u1ef3 di\u1ec7u th\u1ef1c s\u1ef1 x\u1ea3y ra tr\u01b0\u1edbc khi d\u00f2ng m\u00e3 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c vi\u1ebft ra. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Ph\u00e2n t\u00edch v\u00e0 Thi\u1ebft k\u1ebf H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, hay OOA\/D. \u0110\u00f3 l\u00e0 c\u00e2y c\u1ea7u n\u1ed1i gi\u1eefa m\u1ed9t \u00fd t\u01b0\u1edfng m\u01a1 h\u1ed3 v\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng. \ud83c\udfd7\ufe0f<\/p>\n

\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, vi\u1ec7c hi\u1ec3u r\u00f5 quy tr\u00ecnh n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu. N\u00f3 bi\u1ebfn nh\u1eefng suy ngh\u0129 h\u1ed7n lo\u1ea1n th\u00e0nh logic c\u00f3 c\u1ea5u tr\u00fac. Kh\u00f4ng c\u00f3 n\u1ec1n t\u1ea3ng n\u00e0y, m\u00e3 ngu\u1ed3n s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi r\u1ed1i r\u1eafm c\u00e1c ph\u1ee5 thu\u1ed9c, r\u1ea5t kh\u00f3 b\u1ea3o tr\u00ec. H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd d\u1eabn b\u1ea1n qua to\u00e0n b\u1ed9 v\u00f2ng \u0111\u1eddi, t\u1eeb thu th\u1eadp y\u00eau c\u1ea7u ban \u0111\u1ea7u \u0111\u1ebfn tri\u1ec3n khai cu\u1ed1i c\u00f9ng.<\/p>\n

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

1. Hi\u1ec3u n\u1ec1n t\u1ea3ng: OOA\/D l\u00e0 g\u00ec? \ud83d\udd0d<\/h2>\n

Ph\u00e2n t\u00edch v\u00e0 Thi\u1ebft k\u1ebf H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa ch\u00fang. N\u00f3 t\u1eadp trung v\u00e0o “c\u00e1i g\u00ec” (Ph\u00e2n t\u00edch) tr\u01b0\u1edbc khi \u0111\u1ebfn “c\u00e1ch th\u1ee9c” (Thi\u1ebft k\u1ebf). S\u1ef1 t\u00e1ch bi\u1ec7t n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi v\u1ea5n \u0111\u1ec1, thay v\u00ec \u00e9p bu\u1ed9c v\u1ea5n \u0111\u1ec1 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi gi\u1ea3i ph\u00e1p.<\/p>\n

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  • Ph\u00e2n t\u00edch H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOA):<\/strong> T\u1eadp trung v\u00e0o vi\u1ec7c hi\u1ec3u l\u0129nh v\u1ef1c v\u1ea5n \u0111\u1ec1. Nh\u1eefng th\u1ef1c th\u1ec3 n\u00e0o t\u1ed3n t\u1ea1i? Ch\u00fang c\u1ea7n l\u00e0m g\u00ec? Ai t\u01b0\u01a1ng t\u00e1c v\u1edbi ch\u00fang?<\/li>\n
  • Thi\u1ebft k\u1ebf H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOD):<\/strong> T\u1eadp trung v\u00e0o l\u0129nh v\u1ef1c gi\u1ea3i ph\u00e1p. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd giao ti\u1ebfp nh\u01b0 th\u1ebf n\u00e0o? Giao di\u1ec7n n\u00e0o c\u1ea7n thi\u1ebft? D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef nh\u01b0 th\u1ebf n\u00e0o?<\/li>\n<\/ul>\n

    T\u01b0 duy theo \u0111\u1ed1i t\u01b0\u1ee3ng gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u1ee9c t\u1ea1p. Thay v\u00ec xem h\u1ec7 th\u1ed1ng nh\u01b0 m\u1ed9t danh s\u00e1ch kh\u1ed5ng l\u1ed3 c\u00e1c h\u00e0m, b\u1ea1n s\u1ebd xem n\u00f3 nh\u01b0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c t\u00e1c nh\u00e2n t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. M\u1ed7i t\u00e1c nh\u00e2n \u0111\u1ec1u c\u00f3 tr\u00e1ch nhi\u1ec7m v\u00e0 tr\u1ea1ng th\u00e1i ri\u00eang.<\/p>\n

    2. Giai \u0111o\u1ea1n m\u1ed9t: Thu th\u1eadp y\u00eau c\u1ea7u \ud83d\udcdd<\/h2>\n

    H\u00e0nh tr\u00ecnh b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c hi\u1ec3u r\u00f5 \u0111i\u1ec1u g\u00ec c\u1ea7n \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng. Giai \u0111o\u1ea1n n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng. N\u1ebfu y\u00eau c\u1ea7u kh\u00f4ng r\u00f5 r\u00e0ng, thi\u1ebft k\u1ebf s\u1ebd g\u1eb7p kh\u00f3 kh\u0103n, b\u1ea5t k\u1ec3 m\u00e3 ngu\u1ed3n c\u00f3 tinh t\u1ebf \u0111\u1ebfn \u0111\u00e2u.<\/p>\n

    2.1 X\u00e1c \u0111\u1ecbnh c\u00e1c b\u00ean li\u00ean quan<\/h3>\n

    M\u1ed7i h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m \u0111\u1ec1u ph\u1ee5c v\u1ee5 m\u1ed9t m\u1ee5c \u0111\u00edch. B\u1ea1n c\u1ea7n bi\u1ebft ai l\u00e0 ng\u01b0\u1eddi \u0111\u01b0\u1ee3c l\u1ee3i t\u1eeb n\u00f3.<\/p>\n

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    • Ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i:<\/strong> Nh\u1eefng ng\u01b0\u1eddi s\u1ebd t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng m\u1ed7i ng\u00e0y.<\/li>\n
    • Ch\u1ee7 doanh nghi\u1ec7p:<\/strong> Nh\u1eefng c\u00e1 nh\u00e2n x\u00e1c \u0111\u1ecbnh m\u1ee5c ti\u00eau v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 th\u00e0nh c\u00f4ng.<\/li>\n
    • Ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng:<\/strong> Nh\u1eefng ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m b\u1ea3o tr\u00ec v\u00e0 tri\u1ec3n khai.<\/li>\n<\/ul>\n

      2.2 Y\u00eau c\u1ea7u ch\u1ee9c n\u0103ng so v\u1edbi Y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng<\/h3>\n

      Ph\u00e2n bi\u1ec7t gi\u1eefa vi\u1ec7c h\u1ec7 th\u1ed1ng l\u00e0m g\u00ec v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng l\u00e0 \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n\n\n\n\n
      Lo\u1ea1i y\u00eau c\u1ea7u<\/th>\nL\u0129nh v\u1ef1c t\u1eadp trung<\/th>\nV\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n
      Ch\u1ee9c n\u0103ng<\/td>\nT\u00ednh n\u0103ng v\u00e0 h\u00e0nh vi<\/td>\nH\u1ec7 th\u1ed1ng ph\u1ea3i t\u00ednh thu\u1ebf t\u1ef1 \u0111\u1ed9ng.<\/td>\n<\/tr>\n
      Phi ch\u1ee9c n\u0103ng<\/td>\n\u0110\u1eb7c t\u00ednh ch\u1ea5t l\u01b0\u1ee3ng<\/td>\nH\u1ec7 th\u1ed1ng ph\u1ea3i t\u1ea3i trong th\u1eddi gian d\u01b0\u1edbi 2 gi\u00e2y.<\/td>\n<\/tr>\n
      R\u00e0ng bu\u1ed9c<\/td>\nH\u1ea1n ch\u1ebf<\/td>\nPh\u1ea3i ch\u1ea1y tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng duy nh\u1ea5t.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      2.3 K\u1ef9 thu\u1eadt thu th\u1eadp nhu c\u1ea7u<\/h3>\n

      Kh\u00f4ng c\u00f3 c\u00e1ch \u0111\u00fang duy nh\u1ea5t \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n

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      • Ph\u1ecfng v\u1ea5n:<\/strong> Nh\u1eefng cu\u1ed9c th\u1ea3o lu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c b\u00ean li\u00ean quan.<\/li>\n
      • Kh\u1ea3o s\u00e1t:<\/strong> Thu th\u1eadp d\u1eef li\u1ec7u t\u1eeb m\u1ed9t nh\u00f3m l\u1edbn ng\u01b0\u1eddi d\u00f9ng ti\u1ec1m n\u0103ng.<\/li>\n
      • Quan s\u00e1t:<\/strong> Quan s\u00e1t c\u00e1ch ng\u01b0\u1eddi d\u00f9ng hi\u1ec7n t\u1ea1i th\u1ef1c hi\u1ec7n c\u00e1c nhi\u1ec7m v\u1ee5 m\u1ed9t c\u00e1ch th\u1ee7 c\u00f4ng.<\/li>\n
      • L\u00e0m m\u1eabu th\u1eed:<\/strong> T\u1ea1o m\u1ed9t b\u1ea3n m\u00f4 ph\u1ecfng th\u00f4 \u0111\u1ec3 nh\u1eadn ph\u1ea3n h\u1ed3i s\u1edbm.<\/li>\n<\/ul>\n

        3. Giai \u0111o\u1ea1n hai: Ph\u00e2n t\u00edch h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOA) \ud83e\udde9<\/h2>\n

        Khi y\u00eau c\u1ea7u \u0111\u00e3 r\u00f5 r\u00e0ng, giai \u0111o\u1ea1n ph\u00e2n t\u00edch s\u1ebd b\u1eaft \u0111\u1ea7u. \u0110\u00e2y l\u00e0 n\u01a1i b\u1ea1n x\u00e1c \u0111\u1ecbnh c\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i c\u1ee7a l\u0129nh v\u1ef1c. B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm c\u00e1c danh t\u1eeb v\u00e0 \u0111\u1ed9ng t\u1eeb trong c\u00e1c y\u00eau c\u1ea7u.<\/p>\n

        3.1 X\u00e1c \u0111\u1ecbnh c\u00e1c l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng<\/h3>\n

        Duy\u1ec7t qua v\u0103n b\u1ea3n y\u00eau c\u1ea7u \u0111\u1ec3 t\u00ecm c\u00e1c danh t\u1eeb. Ch\u00fang th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho c\u00e1c l\u1edbp ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c \u0111\u1ed9ng t\u1eeb th\u01b0\u1eddng \u0111\u1ea1i di\u1ec7n cho c\u00e1c ph\u01b0\u01a1ng th\u1ee9c ho\u1eb7c h\u00e0nh vi.<\/p>\n

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        • V\u00ed d\u1ee5 danh t\u1eeb:<\/strong> \u201cKh\u00e1ch h\u00e0ng \u0111\u1eb7t m\u1ed9t \u0111\u01a1n h\u00e0ng.\u201d \u2192 Kh\u00e1ch h\u00e0ng<\/em> v\u00e0 \u0110\u01a1n h\u00e0ng<\/em> l\u00e0 nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 kh\u1ea3 n\u0103ng cao.<\/li>\n
        • V\u00ed d\u1ee5 \u0111\u1ed9ng t\u1eeb:<\/strong> \u201cH\u1ec7 th\u1ed1ng t\u00ednh t\u1ed5ng c\u1ed9ng.\u201d \u2192 TinhTongCong<\/em> l\u00e0 m\u1ed9t h\u00e0nh vi c\u00f3 kh\u1ea3 n\u0103ng cao.<\/li>\n<\/ul>\n

          3.2 X\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7<\/h3>\n

          C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng t\u1ed3n t\u1ea1i m\u1ed9t c\u00e1ch c\u00f4 l\u1eadp. Ch\u00fang c\u00f3 m\u1ed1i quan h\u1ec7 v\u1edbi nhau. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y s\u1ebd ng\u0103n ng\u1eeba nh\u1eefng l\u1ed7i thi\u1ebft k\u1ebf sau n\u00e0y.<\/p>\n

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          • Li\u00ean k\u1ebft:<\/strong> M\u1ed9t li\u00ean k\u1ebft c\u1ea5u tr\u00fac gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng (v\u00ed d\u1ee5: m\u1ed9t T\u00e0i x\u1ebf s\u1edf h\u1eefu m\u1ed9t Xe h\u01a1i).<\/li>\n
          • K\u1ebf th\u1eeba:<\/strong> M\u1ed9t m\u1ed1i quan h\u1ec7 trong \u0111\u00f3 m\u1ed9t l\u1edbp l\u00e0 phi\u00ean b\u1ea3n chuy\u00ean bi\u1ec7t h\u00f3a c\u1ee7a l\u1edbp kh\u00e1c (v\u00ed d\u1ee5: m\u1ed9t Sedan l\u00e0 m\u1ed9t Xe h\u01a1i).<\/li>\n
          • T\u1ed5ng h\u1ee3p:<\/strong> M\u1ed9t m\u1ed1i quan h\u1ec7 b\u1ed9-ph\u1ea7n n\u01a1i ph\u1ea7n c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp (v\u00ed d\u1ee5: M\u1ed9t Th\u01b0 vi\u1ec7n c\u00f3 S\u00e1ch).<\/li>\n
          • Th\u00e0nh ph\u1ea7n:<\/strong> M\u1ed9t m\u1ed1i quan h\u1ec7 b\u1ed9-ph\u1ea7n nghi\u00eam ng\u1eb7t n\u01a1i ph\u1ea7n kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i n\u1ebfu kh\u00f4ng c\u00f3 to\u00e0n b\u1ed9 (v\u00ed d\u1ee5: M\u1ed9t Ng\u00f4i nh\u00e0 c\u00f3 Ph\u00f2ng).<\/li>\n<\/ul>\n

            3.3 M\u00f4 h\u00ecnh h\u00f3a Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/h3>\n

            C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u00f4 t\u1ea3 c\u00e1ch ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u00ecnh dung lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng.<\/p>\n

              \n
            • Ng\u01b0\u1eddi tham gia:<\/strong> C\u00e1c th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i (ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c).<\/li>\n
            • C\u00e1c t\u00ecnh hu\u1ed1ng:<\/strong> C\u00e1c h\u00e0nh tr\u00ecnh c\u1ee5 th\u1ec3 m\u00e0 m\u1ed9t ng\u01b0\u1eddi tham gia \u0111i qua \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau.<\/li>\n
            • \u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft:<\/strong> Nh\u1eefng \u0111i\u1ec1u ph\u1ea3i \u0111\u00fang tr\u01b0\u1edbc khi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng b\u1eaft \u0111\u1ea7u.<\/li>\n
            • \u0110i\u1ec1u ki\u1ec7n h\u1eadu t\u1ed1:<\/strong> Tr\u1ea1ng th\u00e1i c\u1ee7a h\u1ec7 th\u1ed1ng sau khi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ho\u00e0n t\u1ea5t.<\/li>\n<\/ul>\n

              4. Giai \u0111o\u1ea1n ba: Thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOD) \ud83c\udfd7\ufe0f<\/h2>\n

              Thi\u1ebft k\u1ebf chuy\u1ec3n \u0111\u1ed5i m\u00f4 h\u00ecnh ph\u00e2n t\u00edch th\u00e0nh b\u1ea3n v\u1ebd chi ti\u1ebft cho vi\u1ec7c x\u00e2y d\u1ef1ng. Giai \u0111o\u1ea1n n\u00e0y x\u00e1c \u0111\u1ecbnh ki\u1ebfn tr\u00fac v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a m\u00e3 ngu\u1ed3n.<\/p>\n

              4.1 Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf<\/h3>\n

              Tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ea3m b\u1ea3o m\u00e3 ngu\u1ed3n v\u1eabn linh ho\u1ea1t v\u00e0 v\u1eefng ch\u1eafc.<\/p>\n

                \n
              • Nguy\u00ean t\u1eafc SOLID:<\/strong> M\u1ed9t b\u1ed9 h\u01b0\u1edbng d\u1eabn cho m\u00e3 ngu\u1ed3n d\u1ec5 b\u1ea3o tr\u00ec.<\/li>\n
              • T\u00e1ch bi\u1ec7t c\u00e1c m\u1ed1i quan t\u00e2m:<\/strong> Chia h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c t\u00ednh n\u0103ng ri\u00eang bi\u1ec7t.<\/li>\n
              • Li\u00ean k\u1ebft cao:<\/strong> Gi\u1eef c\u00e1c tr\u00e1ch nhi\u1ec7m li\u00ean quan trong m\u1ed9t l\u1edbp duy nh\u1ea5t.<\/li>\n
              • Li\u00ean k\u1ebft th\u1ea5p:<\/strong> T\u1ed1i thi\u1ec3u h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c l\u1edbp kh\u00e1c nhau.<\/li>\n<\/ul>\n

                4.2 \u0110\u1ecbnh ngh\u0129a giao di\u1ec7n<\/h3>\n

                M\u1ed9t giao di\u1ec7n \u0111\u1ecbnh ngh\u0129a c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ean trong. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi tr\u1eebu t\u01b0\u1ee3ng h\u00f3a.<\/p>\n

                  \n
                • N\u00f3 cho ph\u00e9p c\u00e1c tri\u1ec3n khai kh\u00e1c nhau \u0111\u01b0\u1ee3c thay th\u1ebf m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng h\u1ec7 th\u1ed1ng.<\/li>\n
                • N\u00f3 thi\u1ebft l\u1eadp m\u1ed9t h\u1ee3p \u0111\u1ed3ng m\u00e0 t\u1ea5t c\u1ea3 c\u00e1c l\u1edbp tri\u1ec3n khai ph\u1ea3i tu\u00e2n theo.<\/li>\n<\/ul>\n

                  4.3 V\u1ebd s\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng<\/h3>\n

                  Vi\u1ec7c tr\u1ef1c quan h\u00f3a thi\u1ebft k\u1ebf gi\u00fap truy\u1ec1n \u0111\u1ea1t \u00fd t\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9i nh\u00f3m. C\u00e1c k\u00fd hi\u1ec7u chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u00f5 r\u00e0ng.<\/p>\n\n\n\n\n\n\n\n\n
                  Lo\u1ea1i s\u01a1 \u0111\u1ed3<\/th>\nM\u1ee5c \u0111\u00edch<\/th>\nKhi n\u00e0o n\u00ean s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
                  S\u01a1 \u0111\u1ed3 l\u1edbp<\/td>\nHi\u1ec3n th\u1ecb c\u1ea5u tr\u00fac v\u00e0 m\u1ed1i quan h\u1ec7<\/td>\nTrong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf chi ti\u1ebft<\/td>\n<\/tr>\n
                  S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/td>\nHi\u1ec3n th\u1ecb t\u01b0\u01a1ng t\u00e1c theo th\u1eddi gian<\/td>\nKhi x\u00e1c \u0111\u1ecbnh c\u00e1c lu\u1ed3ng ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n
                  S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i<\/td>\nHi\u1ec3n th\u1ecb v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n\u0110\u1ed1i v\u1edbi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 tr\u1ea1ng th\u00e1i ph\u1ee9c t\u1ea1p (v\u00ed d\u1ee5: \u0110\u01a1n h\u00e0ng)<\/td>\n<\/tr>\n
                  S\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng<\/td>\nHi\u1ec3n th\u1ecb c\u00e1c quy tr\u00ecnh kinh doanh<\/td>\nB\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c lu\u1ed3ng c\u00f4ng vi\u1ec7c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  5. Giai \u0111o\u1ea1n b\u1ed1n: Tri\u1ec3n khai \ud83d\udcbb<\/h2>\n

                  Sau khi thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, vi\u1ec7c l\u1eadp tr\u00ecnh b\u1eaft \u0111\u1ea7u. \u0110\u00e2y l\u00e0 n\u01a1i c\u00e1c kh\u00e1i ni\u1ec7m tr\u1eebu t\u01b0\u1ee3ng tr\u1edf th\u00e0nh hi\u1ec7n th\u1ef1c c\u1ee5 th\u1ec3.<\/p>\n

                  5.1 Chuy\u1ec3n \u0111\u1ed5i thi\u1ebft k\u1ebf th\u00e0nh m\u00e3 ngu\u1ed3n<\/h3>\n

                  M\u1ed7i l\u1edbp trong thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n tr\u1edf th\u00e0nh m\u1ed9t t\u1ec7p ho\u1eb7c module trong c\u01a1 s\u1edf m\u00e3 ngu\u1ed3n c\u1ee7a b\u1ea1n. C\u00e1c ph\u01b0\u01a1ng th\u1ee9c \u00e1nh x\u1ea1 th\u00e0nh h\u00e0m. Thu\u1ed9c t\u00ednh \u00e1nh x\u1ea1 th\u00e0nh bi\u1ebfn.<\/p>\n

                    \n
                  • Bao \u0111\u00f3ng:<\/strong>Che gi\u1ea5u d\u1eef li\u1ec7u b\u00ean trong l\u1edbp. Ch\u1ec9 c\u00f4ng khai nh\u1eefng g\u00ec c\u1ea7n thi\u1ebft th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u00f4ng khai.<\/li>\n
                  • H\u00e0m t\u1ea1o:<\/strong>Kh\u1edfi t\u1ea1o \u0111\u1ed1i t\u01b0\u1ee3ng v\u1edbi d\u1eef li\u1ec7u h\u1ee3p l\u1ec7 tr\u01b0\u1edbc khi ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/li>\n
                  • M\u00f4 t\u1ea3 truy c\u1eadp:<\/strong> Ki\u1ec3m so\u00e1t t\u00ednh kh\u1ea3 d\u1ee5ng (c\u00f4ng khai, ri\u00eang t\u01b0, \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7) \u0111\u1ec3 b\u1ea3o v\u1ec7 tr\u1ea1ng th\u00e1i n\u1ed9i b\u1ed9.<\/li>\n<\/ul>\n

                    5.2 Ph\u00e1t tri\u1ec3n l\u1eb7p l\u1ea1i<\/h3>\n

                    Hi\u1ebfm khi b\u1ea3n tri\u1ec3n khai \u0111\u1ea7u ti\u00ean l\u00e0 ho\u00e0n h\u1ea3o. Ph\u00e1t tri\u1ec3n th\u01b0\u1eddng mang t\u00ednh l\u1eb7p l\u1ea1i.<\/p>\n

                      \n
                    • T\u00e1i c\u1ea5u tr\u00fac:<\/strong> C\u1ea3i thi\u1ec7n c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n hi\u1ec7n c\u00f3 m\u00e0 kh\u00f4ng thay \u0111\u1ed5i h\u00e0nh vi c\u1ee7a n\u00f3.<\/li>\n
                    • Ki\u1ec3m th\u1eed:<\/strong> Vi\u1ebft c\u00e1c b\u00e0i ki\u1ec3m th\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed7i th\u00e0nh ph\u1ea7n ho\u1ea1t \u0111\u1ed9ng nh\u01b0 mong \u0111\u1ee3i.<\/li>\n
                    • V\u00f2ng ph\u1ea3n h\u1ed3i:<\/strong> Xem x\u00e9t m\u00e3 ngu\u1ed3n c\u00f9ng \u0111\u1ed3ng nghi\u1ec7p \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i logic s\u1edbm.<\/li>\n<\/ul>\n

                      6. C\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i c\u1ea7n n\u1eafm v\u1eefng \ud83e\udde0<\/h2>\n

                      \u0110\u1ec3 th\u00e0nh c\u00f4ng trong OOA\/D, b\u1ea1n ph\u1ea3i th\u1ea5m nhu\u1ea7n b\u1ed1n tr\u1ee5 c\u1ed9t c\u1ee7a l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n

                      6.1 Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a<\/h3>\n

                      Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a l\u00e0m \u0111\u01a1n gi\u1ea3n h\u00f3a \u0111\u1ed9 ph\u1ee9c t\u1ea1p. N\u00f3 cho ph\u00e9p b\u1ea1n t\u1eadp trung v\u00e0o c\u00e1c t\u00ednh n\u0103ng thi\u1ebft y\u1ebfu m\u00e0 kh\u00f4ng c\u1ea7n lo l\u1eafng v\u1ec1 chi ti\u1ebft n\u1ec1n t\u1ea3ng.<\/p>\n

                        \n
                      • V\u00ed d\u1ee5: B\u1ea1n nh\u1ea5n n\u00fat \u0111\u1ec3 b\u1eadt \u0111\u00e8n. B\u1ea1n kh\u00f4ng c\u1ea7n bi\u1ebft d\u00f2ng \u0111i\u1ec7n ch\u1ea3y qua d\u00e2y nh\u01b0 th\u1ebf n\u00e0o.<\/li>\n<\/ul>\n

                        6.2 Bao \u0111\u00f3ng<\/h3>\n

                        Bao \u0111\u00f3ng k\u1ebft h\u1ee3p d\u1eef li\u1ec7u v\u00e0 ph\u01b0\u01a1ng th\u1ee9c l\u1ea1i v\u1edbi nhau. N\u00f3 ng\u0103n c\u1ea3n m\u00e3 b\u00ean ngo\u00e0i thay \u0111\u1ed5i d\u1eef li\u1ec7u n\u1ed9i b\u1ed9 tr\u1ef1c ti\u1ebfp.<\/p>\n

                          \n
                        • V\u00ed d\u1ee5: M\u1ed9t l\u1edbp t\u00e0i kho\u1ea3n ng\u00e2n h\u00e0ng cho ph\u00e9p b\u1ea1n g\u1eedi ti\u1ec1n nh\u01b0ng ng\u0103n b\u1ea1n thi\u1ebft l\u1eadp s\u1ed1 d\u01b0 tr\u1ef1c ti\u1ebfp.<\/li>\n<\/ul>\n

                          6.3 K\u1ebf th\u1eeba<\/h3>\n

                          K\u1ebf th\u1eeba cho ph\u00e9p c\u00e1c l\u1edbp m\u1edbi ti\u1ebfp nh\u1eadn thu\u1ed9c t\u00ednh v\u00e0 h\u00e0nh vi t\u1eeb c\u00e1c l\u1edbp hi\u1ec7n c\u00f3.<\/p>\n

                            \n
                          • N\u00f3 th\u00fac \u0111\u1ea9y vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng m\u00e3 ngu\u1ed3n.<\/li>\n
                          • N\u00f3 thi\u1ebft l\u1eadp m\u1ed9t th\u1ee9 b\u1eadc m\u1ed1i quan h\u1ec7.<\/li>\n<\/ul>\n

                            6.4 \u0110a h\u00ecnh<\/h3>\n

                            \u0110a h\u00ecnh cho ph\u00e9p c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd nh\u01b0 th\u1ec3 ch\u00fang l\u00e0 th\u1ec3 hi\u1ec7n c\u1ee7a l\u1edbp cha thay v\u00ec l\u1edbp th\u1ef1c t\u1ebf c\u1ee7a ch\u00fang. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c nhau c\u00f3 th\u1ec3 ph\u1ea3n h\u1ed3i c\u00f9ng m\u1ed9t l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c theo c\u00e1ch kh\u00e1c nhau.<\/p>\n

                              \n
                            • V\u00ed d\u1ee5: M\u1ed9t V\u1ebd<\/em>ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau \u0111\u1ed1i v\u1edbi m\u1ed9t H\u00ecnh tr\u00f2n<\/em>\u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 m\u1ed9t H\u00ecnh vu\u00f4ng<\/em>\u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n<\/ul>\n

                              7. Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh \u26a0\ufe0f<\/h2>\n

                              Ngay c\u1ea3 c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. Bi\u1ebft \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u c\u1ea7n c\u1ea3nh gi\u00e1c s\u1ebd ti\u1ebft ki\u1ec7m th\u1eddi gian.<\/p>\n

                                \n
                              • C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng Th\u1ea7n (God Objects):<\/strong>C\u00e1c l\u1edbp th\u1ef1c hi\u1ec7n qu\u00e1 nhi\u1ec1u vi\u1ec7c. H\u00e3y chia nh\u1ecf ch\u00fang th\u00e0nh c\u00e1c l\u1edbp nh\u1ecf h\u01a1n, t\u1eadp trung v\u00e0o m\u1ed9t nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3.<\/li>\n
                              • Thi\u1ebft k\u1ebf qu\u00e1 m\u1ee9c:<\/strong>T\u1ea1o ra c\u00e1c thi\u1ebft k\u1ebf ph\u1ee9c t\u1ea1p cho nh\u1eefng v\u1ea5n \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n. H\u00e3y gi\u1eef cho m\u1ecdi th\u1ee9 \u0111\u01a1n gi\u1ea3n.<\/li>\n
                              • B\u1ecf qua y\u00eau c\u1ea7u:<\/strong>X\u00e2y d\u1ef1ng c\u00e1c t\u00ednh n\u0103ng m\u00e0 kh\u00f4ng ai y\u00eau c\u1ea7u. H\u00e3y lu\u00f4n \u0111\u1ed3ng b\u1ed9 v\u1edbi c\u00e1c m\u1ee5c ti\u00eau ban \u0111\u1ea7u.<\/li>\n
                              • Ghi c\u1ee9ng gi\u00e1 tr\u1ecb:<\/strong>Vi\u1ebft c\u00e1c gi\u00e1 tr\u1ecb tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e3 ngu\u1ed3n. Thay v\u00e0o \u0111\u00f3, h\u00e3y s\u1eed d\u1ee5ng c\u1ea5u h\u00ecnh ho\u1eb7c h\u1eb1ng s\u1ed1.<\/li>\n
                              • Li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd:<\/strong> Khi c\u00e1c l\u1edbp ph\u1ee5 thu\u1ed9c qu\u00e1 nhi\u1ec1u v\u00e0o nhau. Thay \u0111\u1ed5i m\u1ed9t l\u1edbp, b\u1ea1n s\u1ebd l\u00e0m h\u1ecfng l\u1edbp c\u00f2n l\u1ea1i.<\/li>\n<\/ul>\n

                                8. C\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 h\u00e0nh tr\u00ecnh \ud83d\udee0\ufe0f<\/h2>\n

                                M\u1eb7c d\u00f9 ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o ph\u1ea7n m\u1ec1m c\u1ee5 th\u1ec3, nh\u01b0ng c\u00e1c c\u00f4ng c\u1ee5 nh\u1ea5t \u0111\u1ecbnh c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh.<\/p>\n

                                  \n
                                • Ph\u1ea7n m\u1ec1m v\u1ebd s\u01a1 \u0111\u1ed3:<\/strong> \u0110\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 l\u1edbp v\u00e0 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/li>\n
                                • Tr\u00ecnh so\u1ea1n th\u1ea3o m\u00e3 ngu\u1ed3n:<\/strong> N\u01a1i m\u00e0 logic th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c vi\u1ebft.<\/li>\n
                                • Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong> Theo d\u00f5i c\u00e1c thay \u0111\u1ed5i trong m\u00e3 ngu\u1ed3n theo th\u1eddi gian.<\/li>\n
                                • N\u1ec1n t\u1ea3ng h\u1ee3p t\u00e1c:<\/strong> Gi\u00fap c\u00e1c \u0111\u1ed9i nh\u00f3m trao \u0111\u1ed5i v\u1ec1 y\u00eau c\u1ea7u v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf.<\/li>\n<\/ul>\n

                                  9. Ti\u1ebfn b\u01b0\u1edbc v\u1ec1 ph\u00eda tr\u01b0\u1edbc \ud83c\udfc3<\/h2>\n

                                  S\u1ef1 chuy\u1ec3n \u0111\u1ed5i t\u1eeb y\u00eau c\u1ea7u sang m\u00e3 ngu\u1ed3n l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng ph\u00e1t tri\u1ec3n theo th\u1eddi gian. N\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u00ean nh\u1eabn v\u00e0 k\u1ef7 lu\u1eadt. B\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng \u0111i\u1ec1u nh\u1ecf. Ph\u00e2n t\u00edch m\u1ed9t v\u1ea5n \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n tr\u01b0\u1edbc khi \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p.<\/p>\n

                                  T\u1eadp trung v\u00e0o s\u1ef1 r\u00f5 r\u00e0ng. N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch thi\u1ebft k\u1ebf c\u1ee7a m\u00ecnh cho \u0111\u1ed3ng nghi\u1ec7p, th\u00ec thi\u1ebft k\u1ebf \u0111\u00f3 c\u00f3 l\u1ebd qu\u00e1 ph\u1ee9c t\u1ea1p. R\u00e8n luy\u1ec7n hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i. Luy\u1ec7n t\u1eadp v\u1ebd s\u01a1 \u0111\u1ed3. Vi\u1ebft m\u00e3 ngu\u1ed3n ph\u1ea3n \u00e1nh ph\u00e2n t\u00edch c\u1ee7a b\u1ea1n.<\/p>\n

                                  H\u00e3y nh\u1edb, m\u1ee5c ti\u00eau kh\u00f4ng ch\u1ec9 l\u00e0 khi\u1ebfn m\u00e1y t\u00ednh ch\u1ea1y, m\u00e0 c\u00f2n l\u00e0 t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng d\u1ec5 hi\u1ec3u, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 m\u1edf r\u1ed9ng. B\u1eb1ng c\u00e1ch tu\u00e2n theo con \u0111\u01b0\u1eddng OOA\/D, b\u1ea1n s\u1ebd x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho s\u1ef1 nghi\u1ec7p c\u1ee7a m\u00ecnh. \ud83c\udf1f<\/p>\n

                                  T\u00f3m t\u1eaft nh\u1eefng b\u00e0i h\u1ecdc ch\u00ednh \u2705<\/h2>\n
                                    \n
                                  • Y\u00eau c\u1ea7u l\u00e0 vua:<\/strong>Kh\u00f4ng bao gi\u1edd b\u1eaft \u0111\u1ea7u vi\u1ebft m\u00e3 m\u00e0 ch\u01b0a hi\u1ec3u r\u00f5 v\u1ea5n \u0111\u1ec1.<\/li>\n
                                  • Ph\u00e2n t\u00edch tr\u01b0\u1edbc ti\u00ean:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng tr\u01b0\u1edbc khi x\u00e1c \u0111\u1ecbnh m\u00e3 ngu\u1ed3n.<\/li>\n
                                  • Thi\u1ebft k\u1ebf quan tr\u1ecdng:<\/strong>M\u1ed9t thi\u1ebft k\u1ebf t\u1ed1t gi\u00fap gi\u1ea3m n\u1ee3 k\u1ef9 thu\u1eadt.<\/li>\n
                                  • Tr\u1eebu t\u01b0\u1ee3ng l\u00e0 ch\u00eca kh\u00f3a:<\/strong>Gi\u1ea5u s\u1ef1 ph\u1ee9c t\u1ea1p \u0111\u1ec3 ki\u1ec3m so\u00e1t n\u00f3.<\/li>\n
                                  • L\u1eb7p l\u1ea1i:<\/strong>Ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m hi\u1ebfm khi l\u00e0 tuy\u1ebfn t\u00ednh.<\/li>\n<\/ul>\n

                                    H\u00e0nh tr\u00ecnh t\u1eeb ph\u00e2n t\u00edch \u0111\u1ebfn tri\u1ec3n khai ch\u00ednh l\u00e0 nh\u1ecbp \u0111\u1eadp c\u1ee7a k\u1ef9 thu\u1eadt ph\u1ea7n m\u1ec1m. Ch\u1ea5p nh\u1eadn qu\u00e1 tr\u00ecnh n\u00e0y, v\u00e0 m\u00e3 ngu\u1ed3n c\u1ee7a b\u1ea1n s\u1ebd ph\u1ea3n \u00e1nh chi\u1ec1u s\u00e2u t\u01b0 duy c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                    Vi\u1ec7c x\u00e2y d\u1ef1ng ph\u1ea7n m\u1ec1m th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi vi\u1ec7c ch\u1ec9 g\u00f5 m\u00e3 cho \u0111\u1ebfn khi n\u00f3 ho\u1ea1t \u0111\u1ed9ng. Tuy nhi\u00ean, c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 kinh nghi\u1ec7m \u0111\u1ec1u…<\/p>\n","protected":false},"author":1,"featured_media":670,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 OOA\/D: T\u1eeb y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e3 ngu\u1ed3n","_yoast_wpseo_metadesc":"H\u1ecdc ph\u00e2n t\u00edch v\u00e0 thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n bao g\u1ed3m y\u00eau c\u1ea7u, s\u01a1 \u0111\u1ed3 l\u1edbp, nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf v\u00e0 c\u00e1c b\u01b0\u1edbc tri\u1ec3n khai.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[44],"tags":[40,43],"class_list":["post-669","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-object-oriented-analysis-and-design","tag-academic","tag-object-oriented-analysis-and-design"],"yoast_head":"\nH\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 OOA\/D: T\u1eeb y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e3 ngu\u1ed3n<\/title>\n<meta name=\"description\" content=\"H\u1ecdc ph\u00e2n t\u00edch v\u00e0 thi\u1ebft k\u1ebf h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. 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