{"id":1858,"date":"2026-04-12T09:55:01","date_gmt":"2026-04-12T09:55:01","guid":{"rendered":"https:\/\/www.go-diagram.com\/vi\/uml-package-dependencies-visibility-guide\/"},"modified":"2026-04-12T09:55:01","modified_gmt":"2026-04-12T09:55:01","slug":"uml-package-dependencies-visibility-guide","status":"publish","type":"post","link":"https:\/\/www.go-diagram.com\/vi\/uml-package-dependencies-visibility-guide\/","title":{"rendered":"Kh\u00e1m ph\u00e1 s\u00e2u: Hi\u1ec3u v\u1ec1 C\u00e1c Ph\u1ee5 thu\u1ed9c v\u00e0 T\u00ednh Minh b\u1ea1ch trong S\u01a1 \u0111\u1ed3 G\u00f3i UML"},"content":{"rendered":"

Trong b\u1ed1i c\u1ea3nh ph\u1ee9c t\u1ea1p c\u1ee7a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111\u1ed3ng ti\u1ec1n. S\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd t\u1ed5ng th\u1ec3, gi\u00fap c\u00e1c \u0111\u1ed9i h\u00ecnh h\u00ecnh dung \u0111\u01b0\u1ee3c c\u00e1ch t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng b\u1ecb l\u1ea1c trong chi ti\u1ebft nh\u1ecf c\u1ee7a tri\u1ec3n khai c\u1ea5p l\u1edbp. Trong c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y, hai kh\u00e1i ni\u1ec7m then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec c\u1ee7a h\u1ec7 th\u1ed1ng:c\u00e1c ph\u1ee5 thu\u1ed9c<\/strong> v\u00e0 t\u00ednh minh b\u1ea1ch<\/strong>. Hi\u1ec3u c\u00e1ch c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau l\u00e0 n\u1ec1n t\u1ea3ng cho vi\u1ec7c thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m v\u1eefng ch\u1eafc, m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c v\u00e0 c\u00f3 t\u00ednh module cao.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 c\u01a1 ch\u1ebf c\u1ee7a c\u00e1c m\u1ed1i quan h\u1ec7 g\u00f3i, nh\u1eefng tinh t\u1ebf trong ki\u1ec3m so\u00e1t truy c\u1eadp, v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n ki\u1ebfn tr\u00fac. Ch\u00fang ta s\u1ebd \u0111i xa h\u01a1n c\u00e1c \u0111\u1ecbnh ngh\u0129a \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 xem x\u00e9t c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn, v\u00e0 t\u00e1c \u0111\u1ed9ng l\u00e2u d\u00e0i c\u1ee7a c\u00e1c l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u1ea7n m\u1ec1m.<\/p>\n

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\"Hand-drawn<\/figure>\n<\/div>\n

N\u1ec1n t\u1ea3ng c\u1ee7a S\u01a1 \u0111\u1ed3 G\u00f3i \ud83c\udfd7\ufe0f<\/h2>\n

Tr\u01b0\u1edbc khi ph\u00e2n t\u00edch c\u00e1c m\u1ed1i quan h\u1ec7, \u0111i\u1ec1u thi\u1ebft y\u1ebfu l\u00e0 ph\u1ea3i \u0111\u1ecbnh ngh\u0129a r\u00f5 ch\u00ednh container \u0111\u00f3. M\u1ed9t g\u00f3i trong Ng\u00f4n ng\u1eef M\u00f4 h\u00ecnh h\u00f3a \u0110\u01a1n nh\u1ea5t (UML) l\u00e0 c\u01a1 ch\u1ebf mang t\u00ednh t\u1ed5ng qu\u00e1t \u0111\u1ec3 t\u1ed5 ch\u1ee9c c\u00e1c th\u00e0nh ph\u1ea7n th\u00e0nh c\u00e1c nh\u00f3m. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t kh\u00f4ng gian t\u00ean, gi\u1ea3m thi\u1ec3u xung \u0111\u1ed9t t\u00ean v\u00e0 cung c\u1ea5p c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p cho h\u1ec7 th\u1ed1ng.<\/p>\n

T\u1ea1i sao G\u00f3i l\u1ea1i quan tr\u1ecdng<\/h3>\n
    \n
  • T\u1ed5 ch\u1ee9c:<\/strong>C\u00e1c h\u1ec7 th\u1ed1ng l\u1edbn ch\u1ee9a h\u00e0ng ng\u00e0n l\u1edbp. C\u00e1c g\u00f3i nh\u00f3m c\u00e1c l\u1edbp n\u00e0y m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd, ch\u1eb3ng h\u1ea1n theo l\u0129nh v\u1ef1c kinh doanh ho\u1eb7c l\u1edbp k\u1ef9 thu\u1eadt.<\/li>\n
  • Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a:<\/strong> Ch\u00fang cho ph\u00e9p nh\u00e0 ph\u00e1t tri\u1ec3n l\u00e0m vi\u1ec7c \u1edf m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng cao h\u01a1n, t\u1eadp trung v\u00e0o t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c module thay v\u00ec c\u00e1c ch\u1eef k\u00fd ph\u01b0\u01a1ng th\u1ee9c ri\u00eang l\u1ebb.<\/li>\n
  • Bao \u0111\u00f3ng:<\/strong> C\u00e1c g\u00f3i \u1ea9n c\u00e1c chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9 kh\u1ecfi c\u00e1c ph\u1ea7n kh\u00e1c c\u1ee7a h\u1ec7 th\u1ed1ng, ch\u1ec9 c\u00f4ng khai c\u00e1c giao di\u1ec7n c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n

    C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a m\u1ed9t G\u00f3i<\/h3>\n

    M\u1ed9t s\u01a1 \u0111\u1ed3 g\u00f3i th\u01b0\u1eddng bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n sau:<\/p>\n

      \n
    • C\u00e1c n\u00fat G\u00f3i:<\/strong> \u0110\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng bi\u1ec3u t\u01b0\u1ee3ng th\u01b0 m\u1ee5c, ch\u00fang x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi.<\/li>\n
    • C\u00e1c ph\u1ee5 thu\u1ed9c:<\/strong> C\u00e1c \u0111\u01b0\u1eddng n\u1ed1i c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean m\u1edf, th\u1ec3 hi\u1ec7n m\u1ed1i quan h\u1ec7 s\u1eed d\u1ee5ng.<\/li>\n
    • C\u00e1c b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh T\u00ednh minh b\u1ea1ch:<\/strong> C\u00e1c ch\u1ec9 b\u00e1o x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec c\u00f3 th\u1ec3 truy c\u1eadp b\u00ean ngo\u00e0i ranh gi\u1edbi g\u00f3i.<\/li>\n
    • C\u00e1c giao di\u1ec7n:<\/strong> C\u00e1c h\u1ee3p \u0111\u1ed3ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi m\u1ed9t g\u00f3i v\u00e0 \u0111\u01b0\u1ee3c tri\u1ec3n khai b\u1edfi g\u00f3i kh\u00e1c.<\/li>\n<\/ul>\n

      Gi\u1ea3i m\u00e3 C\u00e1c Ph\u1ee5 thu\u1ed9c \ud83d\udd04<\/h2>\n

      M\u1ed9t ph\u1ee5 thu\u1ed9c \u0111\u1ea1i di\u1ec7n cho m\u1ed1i quan h\u1ec7 s\u1eed d\u1ee5ng, n\u01a1i m\u1ed9t thay \u0111\u1ed5i trong b\u1ea3n ch\u1ea5t c\u1ee7a m\u1ed9t th\u00e0nh ph\u1ea7n (ngu\u1ed3n cung c\u1ea5p) c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u00e0nh ph\u1ea7n kh\u00e1c (kh\u00e1ch h\u00e0ng). Trong s\u01a1 \u0111\u1ed3 g\u00f3i, \u0111\u00e2y l\u00e0 c\u01a1 ch\u1ebf ch\u00ednh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ef1\u8026 h\u1ee3p.<\/p>\n

      B\u1ea3n ch\u1ea5t c\u1ee7a S\u1ef1\u8026 h\u1ee3p<\/h3>\n

      C\u00e1c ph\u1ee5 thu\u1ed9c t\u1ea1o ra s\u1ef1\u8026 h\u1ee3p. S\u1ef1\u8026 h\u1ee3p ch\u1eb7t ch\u1ebd khi\u1ebfn h\u1ec7 th\u1ed1ng d\u1ec5 g\u00e3y; s\u1ef1\u8026 h\u1ee3p l\u1ecfng l\u1ebbo gi\u00fap ch\u00fang tr\u1edf n\u00ean b\u1ec1n b\u1ec9. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c ph\u1ee5 thu\u1ed9c, v\u00ec \u0111i\u1ec1u \u0111\u00f3 l\u00e0 kh\u00f4ng th\u1ec3, m\u00e0 l\u00e0 qu\u1ea3n l\u00fd ch\u00fang m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u00fd.<\/p>\n

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      • Nh\u1eefng ph\u1ee5 thu\u1ed9c ng\u1ea7m \u0111\u1ecbnh:<\/strong>X\u1ea3y ra khi m\u1ed9t g\u00f3i s\u1eed d\u1ee5ng m\u1ed9t g\u00f3i kh\u00e1c m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c khai b\u00e1o r\u00f5 r\u00e0ng, th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn chi ph\u00ed b\u1ea3o tr\u00ec \u1ea9n.<\/li>\n
      • Nh\u1eefng ph\u1ee5 thu\u1ed9c r\u00f5 r\u00e0ng:<\/strong>\u0110\u01b0\u1ee3c khai b\u00e1o r\u00f5 r\u00e0ng trong s\u01a1 \u0111\u1ed3, gi\u00fap ki\u1ebfn tr\u00fac tr\u1edf n\u00ean minh b\u1ea1ch v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c b\u00ean li\u00ean quan.<\/li>\n<\/ul>\n

        C\u00e1c lo\u1ea1i ph\u1ee5 thu\u1ed9c<\/h3>\n

        Kh\u00f4ng ph\u1ea3i m\u1ecdi ph\u1ee5 thu\u1ed9c n\u00e0o c\u0169ng nh\u01b0 nhau. Ph\u00e2n bi\u1ec7t gi\u1eefa ch\u00fang gi\u00fap \u0111\u00e1nh gi\u00e1 r\u1ee7i ro v\u00e0 t\u00e1c \u0111\u1ed9ng.<\/p>\n\n\n\n\n\n\n\n\n\n
        Lo\u1ea1i ph\u1ee5 thu\u1ed9c<\/th>\nK\u00fd hi\u1ec7u<\/th>\nM\u00f4 t\u1ea3<\/th>\nTr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
        S\u1eed d\u1ee5ng<\/strong><\/td>\nM\u0169i t\u00ean m\u1edf<\/td>\nKh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 c\u1ee7a Nh\u00e0 cung c\u1ea5p.<\/td>\nG\u1ecdi m\u1ed9t h\u00e0m ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c ti\u1ec7n \u00edch.<\/td>\n<\/tr>\n
        Bao g\u1ed3m<\/strong><\/td>\nM\u0169i t\u00ean g\u1ea1ch<\/td>\nKh\u00e1ch h\u00e0ng bao g\u1ed3m h\u00e0nh vi c\u1ee7a Nh\u00e0 cung c\u1ea5p.<\/td>\nT\u00e1i c\u1ea5u tr\u00fac h\u00e0nh vi chung th\u00e0nh m\u1ed9t g\u00f3i chung.<\/td>\n<\/tr>\n
        M\u1edf r\u1ed9ng<\/strong><\/td>\nM\u0169i t\u00ean g\u1ea1ch<\/td>\nNh\u00e0 cung c\u1ea5p m\u1edf r\u1ed9ng h\u00e0nh vi c\u1ee7a Kh\u00e1ch h\u00e0ng.<\/td>\nTh\u00eam ch\u1ee9c n\u0103ng t\u00f9y ch\u1ecdn v\u00e0o m\u1ed9t g\u00f3i c\u1ed1t l\u00f5i.<\/td>\n<\/tr>\n
        Th\u1ef1c hi\u1ec7n<\/strong><\/td>\nM\u0169i t\u00ean l\u1edbn r\u1ed7ng<\/td>\nKh\u00e1ch h\u00e0ng th\u1ef1c hi\u1ec7n h\u1ee3p \u0111\u1ed3ng c\u1ee7a Nh\u00e0 cung c\u1ea5p.<\/td>\nTri\u1ec3n khai m\u1ed9t giao di\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong m\u1ed9t g\u00f3i kh\u00e1c.<\/td>\n<\/tr>\n
        Nh\u1eadp<\/strong><\/td>\nM\u0169i t\u00ean k\u00e9p<\/td>\nKh\u00e1ch h\u00e0ng nh\u1eadp c\u00e1c th\u00e0nh ph\u1ea7n t\u1eeb Nh\u00e0 cung c\u1ea5p.<\/td>\n\u0110\u01b0a c\u00e1c ki\u1ec3u c\u1ee5 th\u1ec3 v\u00e0o kh\u00f4ng gian t\u00ean.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Ph\u00e2n t\u00edch H\u01b0\u1edbng c\u1ee7a Ph\u1ee5 thu\u1ed9c<\/h3>\n

        H\u01b0\u1edbng c\u1ee7a m\u0169i t\u00ean l\u00e0 \u0111i\u1ec1u quan tr\u1ecdng. M\u1ed9t m\u0169i t\u00ean ch\u1ec9 t\u1eeb ph\u1ea7n t\u1eed ph\u1ee5 thu\u1ed9c \u0111\u1ebfn ph\u1ea7n t\u1eed \u0111\u01b0\u1ee3c ph\u1ee5 thu\u1ed9c. H\u01b0\u1edbng n\u00e0y x\u00e1c \u0111\u1ecbnh lu\u1ed3ng th\u00f4ng tin v\u00e0 \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

          \n
        • Ph\u1ee5 thu\u1ed9c Xu\u1ed1ng d\u00f2ng:<\/strong>Khi m\u1ed9t g\u00f3i c\u1ea5p th\u1ea5p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi m\u1ed9t g\u00f3i c\u1ea5p cao, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nguy\u00ean t\u1eafc ph\u00e2n l\u1edbp.<\/li>\n
        • Ph\u1ee5 thu\u1ed9c L\u00ean d\u00f2ng:<\/strong>Khi m\u1ed9t g\u00f3i c\u1ea5p cao ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t g\u00f3i c\u1ea5p th\u1ea5p, \u0111i\u1ec1u n\u00e0y vi ph\u1ea1m Nguy\u00ean t\u1eafc \u0110\u1ea3o ng\u01b0\u1ee3c Ph\u1ee5 thu\u1ed9c v\u00e0 t\u1ea1o ra s\u1ef1 c\u1ee9ng nh\u1eafc.<\/li>\n<\/ul>\n

          To\u00e1n t\u1eed Quy\u1ec1n truy c\u1eadp \ud83d\udd12<\/h2>\n

          Quy\u1ec1n truy c\u1eadp ki\u1ec3m so\u00e1t nh\u1eefng ph\u1ea7n t\u1eed trong m\u1ed9t g\u00f3i n\u00e0o \u0111\u00f3 c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c ph\u1ea7n t\u1eed b\u00ean ngo\u00e0i g\u00f3i \u0111\u00f3. N\u00f3 l\u00e0 ng\u01b0\u1eddi gi\u1eef c\u1eeda c\u1ee7a t\u00ednh \u0111\u00f3ng g\u00f3i.<\/p>\n

          B\u1ee9c tranh Quy\u1ec1n truy c\u1eadp<\/h3>\n

          UML \u0111\u1ecbnh ngh\u0129a m\u1ed9t s\u1ed1 m\u1ee9c quy\u1ec1n truy c\u1eadp x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi truy c\u1eadp:<\/p>\n

            \n
          • C\u00f4ng khai (+):<\/strong>C\u00e1c ph\u1ea7n t\u1eed c\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb b\u1ea5t k\u1ef3 \u0111\u00e2u. \u0110\u00e2y l\u00e0 m\u1eb7c \u0111\u1ecbnh cho giao di\u1ec7n nh\u01b0ng n\u00ean \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u \u0111\u1ed1i v\u1edbi chi ti\u1ebft tri\u1ec3n khai n\u1ed9i b\u1ed9.<\/li>\n
          • Ri\u00eang t\u01b0 (-):<\/strong>C\u00e1c ph\u1ea7n t\u1eed ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp b\u00ean trong ch\u00ednh g\u00f3i \u0111\u00f3. \u0110i\u1ec1u n\u00e0y b\u1ea3o v\u1ec7 tr\u1ea1ng th\u00e1i v\u00e0 logic n\u1ed9i b\u1ed9.<\/li>\n
          • B\u1ea3o v\u1ec7 (#):<\/strong>C\u00e1c ph\u1ea7n t\u1eed c\u00f3 th\u1ec3 truy c\u1eadp trong g\u00f3i v\u00e0 b\u1edfi c\u00e1c ph\u1ea7n t\u1eed \u0111\u01b0\u1ee3c k\u1ebf th\u1eeba t\u1eeb c\u00e1c g\u00f3i kh\u00e1c. H\u1eefu \u00edch cho c\u00e1c c\u1ea5u tr\u00fac k\u1ebf th\u1eeba.<\/li>\n
          • G\u00f3i (~):<\/strong>C\u00e1c ph\u1ea7n t\u1eed ch\u1ec9 c\u00f3 th\u1ec3 truy c\u1eadp b\u1edfi c\u00e1c ph\u1ea7n t\u1eed kh\u00e1c trong c\u00f9ng m\u1ed9t g\u00f3i. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng cho s\u1ef1 h\u1ee3p t\u00e1c n\u1ed9i b\u1ed9 m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9 ra b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n\n\n\n\n\n\n\n\n
            To\u00e1n t\u1eed<\/th>\nK\u00fd hi\u1ec7u<\/th>\nPh\u1ea1m vi<\/th>\nT\u00e1c \u0111\u1ed9ng \u0111\u1ebfn s\u1ef1 li\u00ean k\u1ebft<\/th>\n<\/tr>\n<\/thead>\n
            C\u00f4ng khai<\/td>\n+<\/td>\nTo\u00e0n c\u1ee5c<\/td>\nTi\u1ebfp x\u00fac cao<\/td>\n<\/tr>\n
            Ri\u00eang t\u01b0<\/td>\n\u2013<\/td>\nCh\u1ec9 n\u1ed9i b\u1ed9<\/td>\nTi\u1ebfp x\u00fac th\u1ea5p<\/td>\n<\/tr>\n
            B\u1ea3o v\u1ec7<\/td>\n#<\/td>\nChu\u1ed7i k\u1ebf th\u1eeba<\/td>\nM\u1ee9c \u0111\u1ed9 ph\u01a1i b\u00e0y trung b\u00ecnh<\/td>\n<\/tr>\n
            G\u00f3i<\/td>\n~<\/td>\nC\u00f9ng kh\u00f4ng gian t\u00ean<\/td>\nPh\u01a1i b\u00e0y c\u00f3 ki\u1ec3m so\u00e1t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            T\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0 m\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb \ud83e\udde9<\/h2>\n

            M\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb v\u00e0 c\u00e1c ph\u1ee5 thu\u1ed9c kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m t\u00e1ch bi\u1ec7t. M\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb c\u1ee7a m\u1ed9t th\u00e0nh vi\u00ean g\u00f3i s\u1ebd x\u00e1c \u0111\u1ecbnh xem li\u1ec7u m\u1ed9t ph\u1ee5 thu\u1ed9c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra hay kh\u00f4ng.<\/p>\n

              \n
            • Ph\u1ee5 thu\u1ed9c c\u00f4ng khai:<\/strong> N\u1ebfu G\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t th\u00e0nh vi\u00ean c\u00f4ng khai c\u1ee7a G\u00f3i B, th\u00ec ph\u1ee5 thu\u1ed9c \u0111\u00f3 l\u00e0 \u1ed5n \u0111\u1ecbnh v\u00e0 r\u00f5 r\u00e0ng.<\/li>\n
            • Ph\u1ee5 thu\u1ed9c \u1ea9n:<\/strong> N\u1ebfu G\u00f3i A truy c\u1eadp m\u1ed9t th\u00e0nh vi\u00ean ri\u00eang t\u01b0 c\u1ee7a G\u00f3i B th\u00f4ng qua m\u1ed9t API c\u00f4ng khai, th\u00ec ph\u1ee5 thu\u1ed9c t\u1ed3n t\u1ea1i nh\u01b0ng kh\u00f4ng hi\u1ec3n th\u1ecb trong s\u01a1 \u0111\u1ed3 g\u00f3i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra n\u1ee3 k\u1ef9 thu\u1eadt.<\/li>\n<\/ul>\n

              Khi thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac g\u00f3i, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c ph\u1ee5 thu\u1ed9c ph\u00f9 h\u1ee3p v\u1edbi quy t\u1eafc hi\u1ec3n th\u1ecb. M\u1ed9t g\u00f3i kh\u00f4ng n\u00ean ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c chi ti\u1ebft n\u1ed9i b\u1ed9 c\u1ee7a g\u00f3i kh\u00e1c, ngay c\u1ea3 khi nh\u1eefng chi ti\u1ebft \u0111\u00f3 t\u1ea1m th\u1eddi c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/p>\n

              Quy t\u1eafc \u00edt \u0111\u1eb7c quy\u1ec1n nh\u1ea5t<\/h3>\n

              \u00c1p d\u1ee5ng nguy\u00ean t\u1eafc \u00edt \u0111\u1eb7c quy\u1ec1n nh\u1ea5t \u0111\u1ed1i v\u1edbi m\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb. M\u1eb7c \u0111\u1ecbnh h\u00e3y \u0111\u1eb7t c\u00e1c th\u00e0nh ph\u1ea7n \u1edf ch\u1ebf \u0111\u1ed9 ri\u00eang t\u01b0 v\u00e0 ch\u1ec9 c\u00f4ng khai nh\u1eefng g\u00ec th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ti\u1ec1m \u1ea9n l\u1ed7i v\u00e0 c\u00e1c ph\u1ee5 thu\u1ed9c kh\u00f4ng mong mu\u1ed1n.<\/p>\n

              Qu\u1ea3n l\u00fd s\u1ef1 li\u00ean k\u1ebft v\u00e0 t\u00ednh g\u1eafn k\u1ebft \ud83d\udee1\ufe0f<\/h2>\n

              M\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng c\u1ee7a vi\u1ec7c qu\u1ea3n l\u00fd c\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0 m\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb l\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh g\u1eafn k\u1ebft cao v\u00e0 s\u1ef1 li\u00ean k\u1ebft th\u1ea5p.<\/p>\n

              T\u00ednh g\u1eafn k\u1ebft cao<\/h3>\n

              M\u1ed9t g\u00f3i c\u00f3 t\u00ednh g\u1eafn k\u1ebft cao khi c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 c\u00f3 m\u1ed1i li\u00ean h\u1ec7 ch\u1eb7t ch\u1ebd v\u00e0 ph\u1ee5c v\u1ee5 m\u1ed9t m\u1ee5c \u0111\u00edch duy nh\u1ea5t, r\u00f5 r\u00e0ng.<\/p>\n

                \n
              • Tr\u00e1ch nhi\u1ec7m duy nh\u1ea5t:<\/strong> M\u1ed7i g\u00f3i n\u00ean c\u00f3 m\u1ed9t l\u00fd do duy nh\u1ea5t \u0111\u1ec3 thay \u0111\u1ed5i.<\/li>\n
              • S\u1eafp x\u1ebfp h\u1ee3p l\u00fd:<\/strong> C\u00e1c l\u1edbp trong m\u1ed9t g\u00f3i n\u00ean c\u00f3 li\u00ean h\u1ec7 v\u1edbi nhau theo l\u0129nh v\u1ef1c, ch\u1ee9c n\u0103ng ho\u1eb7c t\u1ea7ng c\u00f4ng ngh\u1ec7.<\/li>\n<\/ul>\n

                S\u1ef1 li\u00ean k\u1ebft th\u1ea5p<\/h3>\n

                M\u1ed9t g\u00f3i c\u00f3 s\u1ef1 li\u00ean k\u1ebft th\u1ea5p khi n\u00f3 c\u00f3 \u00edt ph\u1ee5 thu\u1ed9c nh\u1ea5t v\u00e0o c\u00e1c g\u00f3i kh\u00e1c.<\/p>\n

                  \n
                • Quy t\u1eafc ph\u1ee5 thu\u1ed9c:<\/strong> C\u00e1c ph\u1ee5 thu\u1ed9c lu\u00f4n ph\u1ea3i h\u01b0\u1edbng \u0111\u1ebfn c\u00e1c g\u00f3i \u1ed5n \u0111\u1ecbnh v\u00e0 tr\u1eebu t\u01b0\u1ee3ng h\u01a1n.<\/li>\n
                • T\u00e1ch bi\u1ec7t giao di\u1ec7n:<\/strong> C\u00e1c g\u00f3i n\u00ean ph\u1ee5 thu\u1ed9c v\u00e0o giao di\u1ec7n thay v\u00ec c\u00e1c tri\u1ec3n khai c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n

                  C\u00e1c m\u1eabu ki\u1ebfn tr\u00fac ph\u1ed5 bi\u1ebfn \ud83c\udfdb\ufe0f<\/h2>\n

                  M\u1ed9t s\u1ed1 m\u1eabu xu\u1ea5t hi\u1ec7n khi t\u1ed5 ch\u1ee9c c\u00e1c g\u00f3i v\u00e0 c\u00e1c ph\u1ee5 thu\u1ed9c c\u1ee7a ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n

                  Ki\u1ebfn tr\u00fac l\u1edbp<\/h3>\n

                  \u0110\u00e2y l\u00e0 m\u1eabu ph\u1ed5 bi\u1ebfn nh\u1ea5t. C\u00e1c g\u00f3i \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo c\u00e1c l\u1edbp, ch\u1eb3ng h\u1ea1n nh\u01b0 Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng, Logic kinh doanh v\u00e0 Truy c\u1eadp d\u1eef li\u1ec7u.<\/p>\n

                    \n
                  • Lu\u1ed3ng:<\/strong>C\u00e1c ph\u1ee5 thu\u1ed9c ch\u1ea3y theo chi\u1ec1u t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi (Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng -> Logic -> D\u1eef li\u1ec7u).<\/li>\n
                  • L\u1ee3i \u00edch:<\/strong>S\u1ef1 t\u00e1ch bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa c\u00e1c kh\u00eda c\u1ea1nh quan t\u00e2m.<\/li>\n
                  • Gi\u1edbi h\u1ea1n:<\/strong>C\u00e1c l\u1edbp \u1edf tr\u00ean kh\u00f4ng th\u1ec3 ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c l\u1edbp \u1edf d\u01b0\u1edbi m\u00e0 kh\u00f4ng c\u00f3 giao di\u1ec7n.<\/li>\n<\/ul>\n

                    Ki\u1ebfn tr\u00fac module<\/h3>\n

                    C\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c module, m\u1ed7i module c\u00f3 c\u00e1c ph\u1ee5 thu\u1ed9c n\u1ed9i b\u1ed9 ri\u00eang v\u00e0 t\u01b0\u01a1ng t\u00e1c b\u00ean ngo\u00e0i b\u1ecb gi\u1edbi h\u1ea1n.<\/p>\n

                      \n
                    • Lu\u1ed3ng:<\/strong>C\u00e1c module giao ti\u1ebfp th\u00f4ng qua c\u00e1c giao di\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng.<\/li>\n
                    • L\u1ee3i \u00edch:<\/strong>Kh\u1ea3 n\u0103ng ki\u1ec3m th\u1eed cao v\u00e0 d\u1ec5 thay th\u1ebf.<\/li>\n
                    • Gi\u1edbi h\u1ea1n:<\/strong>Y\u00eau c\u1ea7u qu\u1ea3n l\u00fd quy\u1ec1n truy c\u1eadp nghi\u00eam ng\u1eb7t \u0111\u1ec3 ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9 gi\u1eefa c\u00e1c module.<\/li>\n<\/ul>\n

                      Ki\u1ebfn tr\u00fac plugin<\/h3>\n

                      M\u1ed9t h\u1ec7 th\u1ed1ng c\u1ed1t l\u00f5i cung c\u1ea5p m\u1ed9t giao di\u1ec7n m\u00e0 c\u00e1c g\u00f3i b\u00ean ngo\u00e0i c\u00f3 th\u1ec3 tri\u1ec3n khai \u0111\u1ec3 m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng.<\/p>\n

                        \n
                      • Lu\u1ed3ng:<\/strong>G\u00f3i c\u1ed1t l\u00f5i ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c giao di\u1ec7n plugin, ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1c tri\u1ec3n khai.<\/li>\n
                      • L\u1ee3i \u00edch:<\/strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n bi\u00ean d\u1ecbch l\u1ea1i c\u1ed1t l\u00f5i.<\/li>\n
                      • Gi\u1edbi h\u1ea1n:<\/strong>C\u1ea7n m\u1ed9t c\u01a1 ch\u1ebf \u0111\u0103ng k\u00fd ho\u1eb7c ph\u00e1t hi\u1ec7n m\u1ea1nh m\u1ebd.<\/li>\n<\/ul>\n

                        T\u00e1i c\u1ea5u tr\u00fac v\u00e0 B\u1ea3o tr\u00ec \ud83d\udd27<\/h2>\n

                        Ph\u1ea7n m\u1ec1m ch\u01b0a bao gi\u1edd l\u00e0 t\u0129nh. Khi y\u00eau c\u1ea7u thay \u0111\u1ed5i, c\u1ea5u tr\u00fac g\u00f3i ph\u1ea3i ti\u1ebfn h\u00f3a. T\u00e1i c\u1ea5u tr\u00fac l\u00e0 qu\u00e1 tr\u00ecnh s\u1eafp x\u1ebfp l\u1ea1i m\u00e3 ngu\u1ed3n hi\u1ec7n c\u00f3 m\u00e0 kh\u00f4ng thay \u0111\u1ed5i h\u00e0nh vi b\u00ean ngo\u00e0i c\u1ee7a n\u00f3.<\/p>\n

                        Nh\u1eadn di\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u<\/h3>\n

                        Tr\u01b0\u1edbc khi refactoring, h\u00e3y x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u c\u1ee7a vi\u1ec7c t\u1ed5 ch\u1ee9c g\u00f3i k\u00e9m:<\/p>\n

                          \n
                        • Kh\u1ea3 n\u0103ng ph\u1ee5 thu\u1ed9c v\u00f2ng:<\/strong>G\u00f3i A ph\u1ee5 thu\u1ed9c v\u00e0o B, v\u00e0 B ph\u1ee5 thu\u1ed9c v\u00e0o A. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra t\u00ecnh tr\u1ea1ng k\u1eb9t trong qu\u00e1 tr\u00ecnh bi\u00ean d\u1ecbch ho\u1eb7c t\u1ea3i.<\/li>\n
                        • G\u00f3i Th\u1ea7n:<\/strong>M\u1ed9t g\u00f3i ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ecdi th\u1ee9 v\u00e0 b\u1ecb m\u1ecdi th\u1ee9 ph\u1ee5 thu\u1ed9c v\u00e0o. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y s\u1ef1 thi\u1ebfu t\u00e1ch bi\u1ec7t.<\/li>\n
                        • C\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c h\u1ed7n \u0111\u1ed9n:<\/strong>M\u1ed9t m\u1ea1ng l\u01b0\u1edbi k\u1ebft n\u1ed1i r\u1ed1i ren, kh\u00f4ng c\u00f3 th\u1ee9 t\u1ef1 ph\u00e2n c\u1ea5p hay m\u1eabu r\u00f5 r\u00e0ng.<\/li>\n<\/ul>\n

                          Chi\u1ebfn l\u01b0\u1ee3c refactoring<\/h3>\n
                            \n
                          1. T\u00e1ch g\u00f3i:<\/strong>Chuy\u1ec3n m\u1ed9t nh\u00f3m c\u00e1c l\u1edbp li\u00ean quan v\u00e0o m\u1ed9t g\u00f3i m\u1edbi \u0111\u1ec3 gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c l\u1eabn nhau.<\/li>\n
                          2. Di chuy\u1ec3n l\u1edbp:<\/strong>Di chuy\u1ec3n m\u1ed9t l\u1edbp \u0111\u1ebfn m\u1ed9t g\u00f3i m\u00e0 n\u00f3 h\u1ee3p l\u00fd v\u1ec1 m\u1eb7t logic.<\/li>\n
                          3. Gi\u1edbi thi\u1ec7u giao di\u1ec7n:<\/strong>Thay th\u1ebf c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c c\u1ee5 th\u1ec3 b\u1eb1ng giao di\u1ec7n \u0111\u1ec3 t\u00e1ch bi\u1ec7t chi ti\u1ebft tri\u1ec3n khai.<\/li>\n
                          4. T\u1eadp trung quy\u1ec1n truy c\u1eadp:<\/strong>Thay \u0111\u1ed5i quy\u1ec1n truy c\u1eadp private th\u00e0nh quy\u1ec1n truy c\u1eadp g\u00f3i \u1edf nh\u1eefng n\u01a1i ph\u00f9 h\u1ee3p \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 ti\u1ebfp x\u00fac t\u1eeb b\u00ean ngo\u00e0i.<\/li>\n<\/ol>\n

                            Nh\u1eefng sai l\u1ea7m c\u1ea7n tr\u00e1nh \u26a0\ufe0f<\/h2>\n

                            Ngay c\u1ea3 c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. Nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn s\u1ebd gi\u00fap duy tr\u00ec s\u1ee9c kh\u1ecfe h\u1ec7 th\u1ed1ng.<\/p>\n

                              \n
                            • Ti\u1ebfp x\u00fac qu\u00e1 m\u1ee9c:<\/strong>L\u00e0m cho qu\u00e1 nhi\u1ec1u th\u00e0nh ph\u1ea7n c\u00f4ng khai s\u1ebd t\u1ea1o ra s\u1ef1 ph\u1ee5 thu\u1ed9c ch\u1eb7t ch\u1ebd. N\u1ebfu tri\u1ec3n khai n\u1ed9i b\u1ed9 thay \u0111\u1ed5i, c\u00e1c g\u00f3i b\u00ean ngo\u00e0i s\u1ebd b\u1ecb h\u1ecfng.<\/li>\n
                            • Ti\u1ebfp x\u00fac qu\u00e1 \u00edt:<\/strong>L\u00e0m cho m\u1ecdi th\u1ee9 \u0111\u1ec1u private s\u1ebd ng\u0103n c\u1ea3n s\u1ef1 t\u00edch h\u1ee3p c\u1ea7n thi\u1ebft. C\u00e2n b\u1eb1ng l\u00e0 ch\u00eca kh\u00f3a.<\/li>\n
                            • B\u1ecf qua c\u00e1c m\u1ed1i ph\u1ee5 thu\u1ed9c truy\u1ec1n d\u1eabn:<\/strong>N\u1ebfu A ph\u1ee5 thu\u1ed9c v\u00e0o B, v\u00e0 B ph\u1ee5 thu\u1ed9c v\u00e0o C, th\u00ec A ng\u1ea7m ph\u1ee5 thu\u1ed9c v\u00e0o C. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra xung \u0111\u1ed9t phi\u00ean b\u1ea3n.<\/li>\n
                            • Vi ph\u1ea1m ph\u00e2n l\u1edbp:<\/strong>Cho ph\u00e9p c\u00e1c g\u00f3i c\u1ea5p th\u1ea5p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c g\u00f3i c\u1ea5p cao vi ph\u1ea1m Nguy\u00ean t\u1eafc \u0111\u1ea3o ng\u01b0\u1ee3c ph\u1ee5 thu\u1ed9c.<\/li>\n<\/ul>\n

                              Chi\u1ebfn l\u01b0\u1ee3c tri\u1ec3n khai \ud83d\udee0\ufe0f<\/h2>\n

                              L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u00e1p d\u1ee5ng nh\u1eefng kh\u00e1i ni\u1ec7m n\u00e0y v\u00e0o m\u1ed9t d\u1ef1 \u00e1n th\u1ef1c t\u1ebf?<\/p>\n

                              B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi<\/h3>\n

                              B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c mi\u1ec1n c\u1ed1t l\u00f5i c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed7i mi\u1ec1n s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t g\u00f3i. \u0110\u1ea3m b\u1ea3o c\u00e1c mi\u1ec1n kh\u00f4ng chia s\u1ebb c\u1ea5u tr\u00fac d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp tr\u1eeb khi ho\u00e0n to\u00e0n c\u1ea7n thi\u1ebft.<\/p>\n

                              B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh giao di\u1ec7n<\/h3>\n

                              T\u1ea1o c\u00e1c giao di\u1ec7n cho t\u1eebng g\u00f3i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u1ee3p \u0111\u1ed3ng t\u01b0\u01a1ng t\u00e1c. C\u00e1c giao di\u1ec7n n\u00e0y n\u00ean c\u00f4ng khai, trong khi c\u00e1c l\u1edbp tri\u1ec3n khai v\u1eabn gi\u1eef b\u00ed m\u1eadt.<\/p>\n

                              B\u01b0\u1edbc 3: B\u1ea3n \u0111\u1ed3 h\u00f3a c\u00e1c ph\u1ee5 thu\u1ed9c<\/h3>\n

                              V\u1ebd s\u01a1 \u0111\u1ed3 g\u00f3i. \u0110\u00e1nh d\u1ea5u t\u1ea5t c\u1ea3 c\u00e1c ph\u1ee5 thu\u1ed9c. Xem x\u00e9t s\u01a1 \u0111\u1ed3 \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c chu tr\u00ecnh ho\u1eb7c vi ph\u1ea1m quy t\u1eafc ph\u00e2n l\u1edbp. Ki\u1ec3m tra tr\u1ef1c quan l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd.<\/p>\n

                              B\u01b0\u1edbc 4: Th\u1ef1c thi t\u00ednh kh\u1ea3 ki\u1ebfn<\/h3>\n

                              C\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng x\u00e2y d\u1ef1ng \u0111\u1ec3 th\u1ef1c thi c\u00e1c quy t\u1eafc kh\u1ea3 ki\u1ebfn. N\u1ebfu m\u1ed9t g\u00f3i c\u1ed1 g\u1eafng truy c\u1eadp th\u00e0nh vi\u00ean b\u00ed m\u1eadt c\u1ee7a g\u00f3i kh\u00e1c, qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng ph\u1ea3i th\u1ea5t b\u1ea1i.<\/p>\n

                              B\u01b0\u1edbc 5: L\u1eb7p l\u1ea1i<\/h3>\n

                              Xem x\u00e9t l\u1ea1i ki\u1ebfn tr\u00fac th\u01b0\u1eddng xuy\u00ean. Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, c\u00e1c g\u00f3i c\u00f3 th\u1ec3 c\u1ea7n t\u00e1ch ra ho\u1eb7c h\u1ee3p nh\u1ea5t. Xem s\u01a1 \u0111\u1ed3 nh\u01b0 m\u1ed9t t\u00e0i li\u1ec7u s\u1ed1ng \u0111\u1ed9ng.<\/p>\n

                              T\u00f3m t\u1eaft c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t \u2705<\/h2>\n

                              T\u00f3m l\u1ea1i nh\u1eefng \u0111i\u1ec3m ch\u00ednh \u0111\u1ec3 qu\u1ea3n l\u00fd s\u01a1 \u0111\u1ed3 g\u00f3i UML:<\/p>\n

                                \n
                              • Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong>Tr\u00e1nh s\u1ef1 ph\u1ee9c t\u1ea1p kh\u00f4ng c\u1ea7n thi\u1ebft trong chu\u1ed7i ph\u1ee5 thu\u1ed9c.<\/li>\n
                              • R\u00f5 r\u00e0ng:<\/strong>C\u00f4ng khai t\u1ea5t c\u1ea3 c\u00e1c ph\u1ee5 thu\u1ed9c r\u00f5 r\u00e0ng trong s\u01a1 \u0111\u1ed3.<\/li>\n
                              • T\u00f4n tr\u1ecdng ranh gi\u1edbi:<\/strong>Kh\u00f4ng v\u01b0\u1ee3t qua ranh gi\u1edbi kh\u1ea3 ki\u1ebfn c\u1ee7a g\u00f3i m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 cho ph\u00e9p.<\/li>\n
                              • T\u1eadp trung v\u00e0o t\u00ednh \u1ed5n \u0111\u1ecbnh:<\/strong>D\u1ef1a v\u00e0o c\u00e1c tr\u1eebu t\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1c tri\u1ec3n khai d\u1ec5 thay \u0111\u1ed5i.<\/li>\n
                              • T\u00e0i li\u1ec7u m\u1ee5c \u0111\u00edch:<\/strong>S\u1eed d\u1ee5ng ch\u00fa th\u00edch \u0111\u1ec3 gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao m\u1ed9t ph\u1ee5 thu\u1ed9c t\u1ed3n t\u1ea1i, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 n\u00f3 t\u1ed3n t\u1ea1i.<\/li>\n<\/ul>\n

                                B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc n\u00e0y, c\u00e1c \u0111\u1ed9i ng\u0169 c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m kh\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u00f4m nay m\u00e0 c\u00f2n linh ho\u1ea1t \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c c\u1ee7a ng\u00e0y mai. Vi\u1ec7c \u0111\u1ea7u t\u01b0 v\u00e0o c\u1ea5u tr\u00fac g\u00f3i r\u00f5 r\u00e0ng s\u1ebd mang l\u1ea1i l\u1ee3i \u00edch trong vi\u1ec7c gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec v\u00e0 \u0111\u1ea9y nhanh t\u1ed1c \u0111\u1ed9 tri\u1ec3n khai t\u00ednh n\u0103ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                Trong b\u1ed1i c\u1ea3nh ph\u1ee9c t\u1ea1p c\u1ee7a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m, s\u1ef1 r\u00f5 r\u00e0ng l\u00e0 \u0111\u1ed3ng ti\u1ec1n. S\u01a1 \u0111\u1ed3 g\u00f3i \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ea3n v\u1ebd t\u1ed5ng th\u1ec3, gi\u00fap c\u00e1c \u0111\u1ed9i…<\/p>\n","protected":false},"author":1,"featured_media":1859,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"Kh\u00e1m ph\u00e1 s\u00e2u: H\u01b0\u1edbng d\u1eabn v\u1ec1 ph\u1ee5 thu\u1ed9c g\u00f3i UML v\u00e0 t\u00ednh kh\u1ea3 ki\u1ebfn \ud83d\udce6","_yoast_wpseo_metadesc":"H\u1ecdc s\u01a1 \u0111\u1ed3 g\u00f3i UML. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c ph\u1ee5 thu\u1ed9c, c\u00e1c b\u1ed9 s\u1eeda kh\u1ea3 ki\u1ebfn v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m s\u1ea1ch s\u1ebd.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[79],"tags":[82,93],"class_list":["post-1858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-package-diagram"],"yoast_head":"\nKh\u00e1m ph\u00e1 s\u00e2u: H\u01b0\u1edbng d\u1eabn v\u1ec1 ph\u1ee5 thu\u1ed9c g\u00f3i UML v\u00e0 t\u00ednh kh\u1ea3 ki\u1ebfn \ud83d\udce6<\/title>\n<meta name=\"description\" content=\"H\u1ecdc s\u01a1 \u0111\u1ed3 g\u00f3i UML. 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