![\"Charcoal](\"https:\/\/www.hi-posts.com\/wp-content\/uploads\/2026\/03\/uml-interaction-diagrams-comparison-charcoal-infographic.jpg\"\/)
<\/figure>\n<\/div>\n\ud83d\udcc9 Hi\u1ec3u v\u1ec1 S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1<\/h2>\n
S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 l\u00e0 lo\u1ea1i s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n r\u1ed9ng r\u00e3i nh\u1ea5t. Ch\u00fang s\u1eafp x\u1ebfp c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c ng\u01b0\u1eddi tham gia theo chi\u1ec1u ngang v\u00e0 th\u1eddi gian theo chi\u1ec1u d\u1ecdc. B\u1ed1 c\u1ee5c n\u00e0y gi\u00fap d\u1ec5 d\u00e0ng theo d\u00f5i th\u1ee9 t\u1ef1 th\u1eddi gian c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n.<\/p>\n
C\u01a1 ch\u1ebf ch\u00ednh<\/h3>\n\n- \u0110\u01b0\u1eddng s\u1ed1ng:<\/strong>C\u00e1c \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t \u0111\u1ee9ng \u0111\u1ea1i di\u1ec7n cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng.<\/li>\n
- Tin nh\u1eafn:<\/strong>C\u00e1c m\u0169i t\u00ean gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng s\u1ed1ng th\u1ec3 hi\u1ec7n d\u1eef li\u1ec7u ho\u1eb7c l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c.<\/li>\n
- Thanh k\u00edch ho\u1ea1t:<\/strong>C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt tr\u00ean \u0111\u01b0\u1eddng s\u1ed1ng cho bi\u1ebft khi n\u00e0o m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang th\u1ef1c s\u1ef1 x\u1eed l\u00fd m\u1ed9t y\u00eau c\u1ea7u.<\/li>\n
- C\u00e1c kh\u1ed1i k\u1ebft h\u1ee3p:<\/strong>C\u00e1c h\u1ed9p \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n b\u1eb1ng c\u00e1c t\u1eeb kh\u00f3a nh\u01b0
alt<\/code>, opt<\/code>, ho\u1eb7c loop<\/code>x\u00e1c \u0111\u1ecbnh h\u00e0nh vi \u0111i\u1ec1u ki\u1ec7n ho\u1eb7c l\u1eb7p l\u1ea1i.<\/li>\n<\/ul>\nKhi n\u00e0o n\u00ean s\u1eed d\u1ee5ng S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1<\/h3>\n
Ch\u1ecdn s\u01a1 \u0111\u1ed3 n\u00e0y khi th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t. N\u00f3 l\u00fd t\u01b0\u1edfng cho:<\/p>\n
\n- Chi ti\u1ebft h\u00f3a c\u00e1c lu\u1ed3ng tin nh\u1eafn ph\u1ee9c t\u1ea1p gi\u1eefa nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- Thi\u1ebft k\u1ebf c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u1ee5 th\u1ec3 ho\u1eb7c \u0111i\u1ec3m cu\u1ed1i API.<\/li>\n
- Tr\u1ef1c quan h\u00f3a v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t giao d\u1ecbch.<\/li>\n
- G\u1ee1 l\u1ed7i c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 th\u1eddi gian ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n c\u1ea1nh tranh trong logic.<\/li>\n<\/ul>\n
S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 xu\u1ea5t s\u1eafc trong vi\u1ec7c th\u1ec3 hi\u1ec7n khi n\u00e0o<\/em>m\u1ed9t vi\u1ec7c g\u00ec \u0111\u00f3 x\u1ea3y ra. Ch\u00fang kh\u00f4ng t\u1ef1 nhi\u00ean th\u1ec3 hi\u1ec7n \u1edf \u0111\u00e2u<\/em> c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi nhau, v\u00e0 ch\u00fang c\u0169ng kh\u00f4ng x\u1eed l\u00fd t\u1ed1t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n c\u1ea5p cao.<\/p>\n\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
\u0110i\u1ec3m m\u1ea1nh ch\u00ednh l\u00e0 s\u1ef1 r\u00f5 r\u00e0ng v\u1ec1 th\u1eddi gian. M\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 theo d\u00f5i m\u1ed9t y\u00eau c\u1ea7u t\u1eeb \u0111\u1ea7u v\u00e0o \u0111\u1ebfn \u0111\u1ea7u ra m\u00e0 kh\u00f4ng g\u00e2y nh\u1ea7m l\u1eabn. Tuy nhi\u00ean, ch\u00fang nhanh ch\u00f3ng tr\u1edf n\u00ean l\u1ed9n x\u1ed9n. N\u1ebfu h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u ti\u1ebfn tr\u00ecnh song song ho\u1eb7c logic nh\u00e1nh ph\u1ee9c t\u1ea1p, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi r\u1ed1i ren c\u00e1c m\u0169i t\u00ean.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Th\u1ee9 t\u1ef1 th\u1eddi gian \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng. D\u1ec5 \u0111\u1ecdc cho c\u00e1c lu\u1ed3ng tuy\u1ebfn t\u00ednh.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Kh\u00f3 th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed9n x\u1ed9n khi c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean tham gia.<\/li>\n<\/ul>\n
\ud83d\udd17 Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/h2>\n
Tr\u01b0\u1edbc \u0111\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 h\u1ee3p t\u00e1c, s\u01a1 \u0111\u1ed3 giao ti\u1ebfp t\u1eadp trung v\u00e0o t\u1ed5 ch\u1ee9c c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thay v\u00ec th\u1ee9 t\u1ef1 c\u00e1c tin nh\u1eafn. Ch\u00fang hi\u1ec3n th\u1ecb c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 c\u00e1c n\u00fat v\u00e0 tin nh\u1eafn nh\u01b0 c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n.<\/p>\n
C\u01a1 ch\u1ebf ch\u00ednh<\/h3>\n\n- C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 n\u00fat:<\/strong>C\u00e1c h\u1ed9p bi\u1ec3u di\u1ec5n c\u00e1c th\u1ec3 hi\u1ec7n ho\u1eb7c l\u1edbp tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- C\u00e1c li\u00ean k\u1ebft nh\u01b0 k\u1ebft n\u1ed1i:<\/strong>C\u00e1c \u0111\u01b0\u1eddng n\u1ed1i k\u1ebft c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng li\u00ean quan.<\/li>\n
- Nh\u00e3n s\u1ed1 h\u1ecdc:<\/strong>C\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 \u0111\u1ec3 ch\u1ec9 th\u1ee9 t\u1ef1 (1, 1.1, 1.2) thay v\u00ec v\u1ecb tr\u00ed kh\u00f4ng gian.<\/li>\n
- C\u00e1c h\u00e0nh tr\u00ecnh \u0111i\u1ec1u h\u01b0\u1edbng:<\/strong>S\u01a1 \u0111\u1ed3 cho th\u1ea5y c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c \u0111\u1ec3 g\u1eedi tin nh\u1eafn.<\/li>\n<\/ul>\n
Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/h3>\n
Lo\u1ea1i s\u01a1 \u0111\u1ed3 n\u00e0y ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng quan tr\u1ecdng h\u01a1n th\u1eddi \u0111i\u1ec3m ch\u00ednh x\u00e1c. H\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p sau:<\/p>\n
\n- Tr\u1ef1c quan h\u00f3a m\u1ea1ng l\u01b0\u1edbi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho m\u1ed9t t\u00ednh n\u0103ng.<\/li>\n
- Hi\u1ec3u r\u00f5 c\u00e1c h\u00e0nh tr\u00ecnh \u0111i\u1ec1u h\u01b0\u1edbng qua \u0111\u1ed3 th\u1ecb \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- C\u00e1c cu\u1ed9c xem x\u00e9t ki\u1ebfn tr\u00fac c\u1ea5p cao n\u01a1i c\u1ea5u tr\u00fac l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/li>\n
- C\u00e1c t\u00ecnh hu\u1ed1ng c\u00f3 \u00edt tin nh\u1eafn nh\u01b0ng k\u1ebft n\u1ed1i \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n
S\u01a1 \u0111\u1ed3 giao ti\u1ebfp cung c\u1ea5p c\u00e1i nh\u00ecn v\u1ec1 m\u1eb7t topo. Ch\u00fang gi\u00fap tr\u1ea3 l\u1eddi c\u00e1c c\u00e2u h\u1ecfi nh\u01b0, ‘Nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o c\u1ea7n giao ti\u1ebfp v\u1edbi nhau?’ thay v\u00ec ‘\u0110i\u1ec1u g\u00ec x\u1ea3y ra tr\u01b0\u1edbc ti\u00ean?’<\/p>\n
\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
B\u1ed1 c\u1ee5c linh ho\u1ea1t. B\u1ea1n c\u00f3 th\u1ec3 s\u1eafp x\u1ebfp c\u00e1c n\u00fat \u0111\u1ec3 l\u00e0m r\u00f5 m\u1ed1i quan h\u1ec7. Tuy nhi\u00ean, th\u1ee9 t\u1ef1 \u00edt tr\u1ef1c quan h\u01a1n. V\u00ec c\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1, b\u1ea1n ph\u1ea3i \u0111\u1ecdc c\u00e1c nh\u00e3n \u0111\u1ec3 hi\u1ec3u lu\u1ed3ng, thay v\u00ec qu\u00e9t t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u0111\u1ed3 th\u1ecb \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Th\u1ee9 t\u1ef1 b\u1ecb \u1ea9n trong c\u00e1c nh\u00e3n. Kh\u00f3 \u0111\u1ecdc \u0111\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh d\u00e0i v\u00e0 tuy\u1ebfn t\u00ednh.<\/li>\n<\/ul>\n
\ud83d\udd04 Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/h2>\n
S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c (IOD) k\u1ebft h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 t\u1eeb s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn c\u1ea5p cao v\u1ec1 m\u1ed9t quy tr\u00ecnh g\u1ed3m nhi\u1ec1u t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau.<\/p>\n
C\u01a1 ch\u1ebf ch\u00ednh<\/h3>\n\n- C\u00e1c n\u00fat:<\/strong>C\u00e1c n\u00fat s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng (h\u00ecnh tr\u00f2n, h\u00ecnh thoi) ki\u1ec3m so\u00e1t lu\u1ed3ng.<\/li>\n
- Khung t\u01b0\u01a1ng t\u00e1c:<\/strong>C\u00e1c khung ch\u1ee9a s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 ho\u1eb7c s\u01a1 \u0111\u1ed3 giao ti\u1ebfp \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00e1c n\u00fat con.<\/li>\n
- Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n:<\/strong>C\u00e1c m\u0169i t\u00ean gi\u1eefa c\u00e1c khung cho th\u1ea5y s\u1ef1 chuy\u1ec3n ti\u1ebfp t\u1eeb m\u1ed9t t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng t\u00e1c sang t\u00ecnh hu\u1ed1ng kh\u00e1c.<\/li>\n
- Chia nh\u00e1nh:<\/strong>C\u00e1c \u0111i\u1ec3m quy\u1ebft \u0111\u1ecbnh x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng \u0111i t\u01b0\u01a1ng t\u00e1c n\u00e0o c\u1ea7n theo.<\/li>\n<\/ul>\n
Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/h3>\n
IODs r\u1ea5t m\u1ea1nh m\u1ebd trong m\u00f4 h\u00ecnh h\u00f3a c\u1ea5p cao. Ch\u00fang ph\u00f9 h\u1ee3p khi:<\/p>\n
\n- M\u1ed9t t\u00ednh n\u0103ng duy nh\u1ea5t tr\u1ea3i d\u00e0i qua nhi\u1ec1u chu\u1ed7i t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau.<\/li>\n
- B\u1ea1n c\u1ea7n hi\u1ec3n th\u1ecb c\u00e1c v\u00f2ng l\u1eb7p ho\u1eb7c nh\u00e1nh \u0111i\u1ec1u ki\u1ec7n xuy\u00ean su\u1ed1t c\u00e1c t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- H\u00e0nh vi h\u1ec7 th\u1ed1ng qu\u00e1 ph\u1ee9c t\u1ea1p \u0111\u1ec3 m\u00f4 t\u1ea3 b\u1eb1ng m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 duy nh\u1ea5t.<\/li>\n
- T\u00e0i li\u1ec7u h\u00f3a h\u00e0nh tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng bao g\u1ed3m nhi\u1ec1u tr\u1ea1ng th\u00e1i h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n
H\u00e3y ngh\u0129 \u0111\u1ebfn IOD nh\u01b0 m\u1ee5c l\u1ee5c cho m\u00f4 h\u00ecnh t\u01b0\u01a1ng t\u00e1c c\u1ee7a b\u1ea1n. N\u00f3 d\u1eabn d\u1eaft ng\u01b0\u1eddi \u0111\u1ecdc \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 ho\u1eb7c s\u01a1 \u0111\u1ed3 giao ti\u1ebfp c\u1ee5 th\u1ec3 c\u1ea7n thi\u1ebft cho t\u1eebng b\u01b0\u1edbc.<\/p>\n
\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
\u01afu \u0111i\u1ec3m ch\u00ednh l\u00e0 t\u00ednh tr\u1eebu t\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb b\u1ee9c tranh t\u1ed5ng th\u1ec3 m\u00e0 kh\u00f4ng b\u1ecb m\u1eafc k\u1eb9t v\u00e0o chi ti\u1ebft tin nh\u1eafn. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u00e0i li\u1ec7u d\u1ec5 qu\u1ea3n l\u00fd. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 n\u00f3 thi\u1ebfu chi ti\u1ebft \u1edf c\u1ea5p \u0111\u1ed9 tin nh\u1eafn. N\u00f3 kh\u00f4ng th\u1ec3 hi\u1ec7n logic n\u1ed9i b\u1ed9 c\u1ee7a c\u00e1c t\u01b0\u01a1ng t\u00e1c b\u00ean trong c\u00e1c khung.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u1ee9c t\u1ea1p. K\u1ebft h\u1ee3p lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u1edbi chi ti\u1ebft t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Y\u00eau c\u1ea7u c\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed3ng gh\u00e9p chi ti\u1ebft. Kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi logic ch\u1ec9 m\u1ed9t b\u01b0\u1edbc.<\/li>\n<\/ul>\n
\u2696\ufe0f Nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh nh\u00ecn nhanh<\/h2>\n
\u0110\u1ec3 l\u00e0m r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t, ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh ba lo\u1ea1i s\u01a1 \u0111\u1ed3 tr\u00ean nhi\u1ec1u kh\u00eda c\u1ea1nh kh\u00e1c nhau. B\u1ea3ng n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00f4ng c\u1ee5 n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u t\u00e0i li\u1ec7u h\u00f3a c\u1ee5 th\u1ec3.<\/p>\n
\n\n\nT\u00ednh n\u0103ng<\/th>\n S\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1<\/th>\n S\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/th>\n S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/th>\n<\/tr>\n<\/thead>\n \n\n\u0110i\u1ec3m t\u1eadp trung ch\u00ednh<\/strong><\/td>\nTh\u1eddi gian v\u00e0 th\u1ee9 t\u1ef1<\/td>\n M\u1ed1i quan h\u1ec7 \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n & T\u00ecnh hu\u1ed1ng<\/td>\n<\/tr>\n \nB\u1ed1 c\u1ee5c<\/strong><\/td>\nTr\u1ee5c th\u1eddi gian th\u1eb3ng \u0111\u1ee9ng<\/td>\n Topo linh ho\u1ea1t<\/td>\n Lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n \nPh\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi<\/strong><\/td>\nLu\u1ed3ng tin nh\u1eafn tuy\u1ebfn t\u00ednh<\/td>\n \u0110\u01b0\u1eddng \u0111i \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n Logic nh\u00e1nh ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n \nM\u1ee9c \u0111\u1ed9 chi ti\u1ebft<\/strong><\/td>\nCao (m\u1ee9c tin nh\u1eafn)<\/td>\n Trung b\u00ecnh (m\u1ee9c li\u00ean k\u1ebft)<\/td>\n Th\u1ea5p (m\u1ee9c t\u00ecnh hu\u1ed1ng)<\/td>\n<\/tr>\n \nX\u1eed l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p<\/strong><\/td>\nTh\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n Trung b\u00ecnh<\/td>\n Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\ud83e\udded Khung quy\u1ebft \u0111\u1ecbnh: Ch\u1ecdn s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p<\/h2>\n
Vi\u1ec7c ch\u1ecdn s\u01a1 \u0111\u1ed3 \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3 c\u1ee7a t\u00e0i li\u1ec7u c\u1ee7a b\u1ea1n. S\u1eed d\u1ee5ng khung sau \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ecnh hu\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n
1. \u0110i\u1ec3m t\u1eadp trung c\u00f3 ph\u1ea3i l\u00e0 th\u1eddi gian?<\/h3>\n
N\u1ebfu c\u00e1c b\u00ean li\u00ean quan c\u1ee7a b\u1ea1n c\u1ea7n bi\u1ebft ch\u00ednh x\u00e1c th\u1eddi \u0111i\u1ec3m m\u1ed9t thao t\u00e1c ghi d\u1eef li\u1ec7u v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u x\u1ea3y ra so v\u1edbi ph\u1ea3n h\u1ed3i c\u1ee7a API, th\u00ec s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00fang. Tr\u1ee5c th\u1eb3ng \u0111\u1ee9ng cung c\u1ea5p bi\u1ec3u di\u1ec5n tr\u1ef1c quan ngay l\u1eadp t\u1ee9c v\u1ec1 \u0111\u1ed9 tr\u1ec5 v\u00e0 th\u1ee9 t\u1ef1.<\/p>\n
2. \u0110i\u1ec3m t\u1eadp trung c\u00f3 ph\u1ea3i l\u00e0 c\u1ea5u tr\u00fac \u0111\u1ed1i t\u01b0\u1ee3ng?<\/h3>\n
N\u1ebfu ki\u1ebfn tr\u00fac ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t m\u1ea1ng l\u01b0\u1edbi c\u1ee5 th\u1ec3 c\u00e1c d\u1ecbch v\u1ee5 ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng giao ti\u1ebfp th\u01b0\u1eddng xuy\u00ean, s\u01a1 \u0111\u1ed3 giao ti\u1ebfp s\u1ebd l\u00e0m r\u00f5 topo. N\u00f3 cho th\u1ea5y \u0111\u1ed1i t\u01b0\u1ee3ng A n\u00f3i chuy\u1ec7n v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng B, v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng B n\u00f3i chuy\u1ec7n v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng C, m\u00e0 kh\u00f4ng c\u1ea7n m\u1ed9t th\u1eddi gian bi\u1ec3u nghi\u00eam ng\u1eb7t.<\/p>\n
3. Quy tr\u00ecnh c\u00f3 ph\u1ee9c t\u1ea1p kh\u00f4ng?<\/h3>\n
N\u1ebfu t\u00ednh n\u0103ng bao g\u1ed3m nhi\u1ec1u \u0111i\u1ec3m quy\u1ebft \u0111\u1ecbnh, th\u1eed l\u1ea1i ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng \u0111i thay th\u1ebf, m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 duy nh\u1ea5t s\u1ebd tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c chia quy tr\u00ecnh th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf d\u1ec5 qu\u1ea3n l\u00fd. M\u1ed7i ph\u1ea7n c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1.<\/p>\n
\ud83d\udee0\ufe0f C\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/h2>\n
H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o c\u00e1c nhi\u1ec7m v\u1ee5 m\u00f4 h\u00ecnh h\u00f3a th\u1ef1c t\u1ebf.<\/p>\n
T\u00ecnh hu\u1ed1ng A: H\u1ec7 th\u1ed1ng \u0111\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng<\/h3>\n
Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp th\u00f4ng tin x\u00e1c th\u1ef1c, h\u1ec7 th\u1ed1ng x\u00e1c minh ch\u00fang v\u00e0 c\u1ea5p m\u1ed9t m\u00e3 th\u00f4ng b\u00e1o. \u0110\u00e2y l\u00e0 m\u1ed9t lu\u1ed3ng tuy\u1ebfn t\u00ednh.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong> S\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1.<\/li>\n
- L\u00fd do:<\/strong> Th\u1ee9 t\u1ef1 c\u00e1c b\u01b0\u1edbc x\u00e1c th\u1ef1c l\u00e0 r\u1ea5t quan tr\u1ecdng. Lu\u1ed3ng t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi ph\u00f9 h\u1ee3p v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n
T\u00ecnh hu\u1ed1ng B: Ki\u1ec3m tra t\u1ed3n kho th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed<\/h3>\n
M\u1ed9t y\u00eau c\u1ea7u \u0111\u1eb7t h\u00e0ng ki\u1ec3m tra nhi\u1ec1u kho h\u00e0ng. N\u1ebfu m\u1ed9t kho th\u1ea5t b\u1ea1i, n\u00f3 s\u1ebd th\u1eed kho kh\u00e1c. N\u1ebfu th\u00e0nh c\u00f4ng, n\u00f3 c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong>S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- L\u00fd do:<\/strong> \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn logic nh\u00e1nh (n\u1ebfu\/ho\u1eb7c). S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb n\u00fat quy\u1ebft \u0111\u1ecbnh v\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 c\u1ee5 th\u1ec3 cho t\u1eebng l\u1ea7n ki\u1ec3m tra kho h\u00e0ng.<\/li>\n<\/ul>\n
T\u00ecnh hu\u1ed1ng C: Giao ti\u1ebfp gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 vi m\u00f4<\/h3>\n
D\u1ecbch v\u1ee5 A g\u1ecdi d\u1ecbch v\u1ee5 B, d\u1ecbch v\u1ee5 B g\u1ecdi d\u1ecbch v\u1ee5 C. D\u1ecbch v\u1ee5 C c\u0169ng g\u1ecdi d\u1ecbch v\u1ee5 D.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong>S\u01a1 \u0111\u1ed3 giao ti\u1ebfp.<\/li>\n
- L\u00fd do:<\/strong> Ki\u1ebfn tr\u00fac \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c k\u1ebft n\u1ed1i. Hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb c\u00e1c d\u1ecbch v\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi th\u1eddi gian g\u1eedi tin nh\u1eafn.<\/li>\n<\/ul>\n
\u2699\ufe0f C\u00e1c k\u1ef9 thu\u1eadt m\u00f4 h\u00ecnh h\u00f3a n\u00e2ng cao<\/h2>\n
M\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 th\u01b0\u1eddng bao g\u1ed3m vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y. Hi\u1ec3u r\u00f5 c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c s\u1ebd c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng t\u00e0i li\u1ec7u t\u1ed5ng th\u1ec3.<\/p>\n
L\u1ed3ng gh\u00e9p c\u00e1c t\u01b0\u01a1ng t\u00e1c<\/h3>\n
B\u1ea1n c\u00f3 th\u1ec3 l\u1ed3ng m\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c b\u00ean trong m\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c kh\u00e1c. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00e0i li\u1ec7u h\u00f3a theo c\u1ea5p \u0111\u1ed9. Tuy nhi\u00ean, h\u00e3y gi\u1eef \u0111\u1ed9 s\u00e2u \u1edf m\u1ee9c th\u1ea5p \u0111\u1ec3 duy tr\u00ec t\u00ednh d\u1ec5 \u0111\u1ecdc.<\/p>\n
K\u1ebft h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng<\/h3>\n
M\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng chuy\u00ean bi\u1ec7t. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u chu\u1ea9n c\u1ee7a s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng cho lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 ch\u00e8n c\u00e1c khung t\u01b0\u01a1ng t\u00e1c cho c\u00e1c ph\u1ea7n c\u00f4ng vi\u1ec7c n\u1eb7ng. C\u00e1ch ti\u1ebfp c\u1eadn k\u1ebft h\u1ee3p n\u00e0y ph\u1ed5 bi\u1ebfn trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng quy m\u00f4 l\u1edbn.<\/p>\n
Tinh ch\u1ec9nh b\u1eb1ng khung<\/h3>\n
S\u1eed d\u1ee5ng khung \u0111\u1ec3 nh\u00f3m c\u00e1c t\u01b0\u01a1ng t\u00e1c li\u00ean quan. Trong s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1, m\u1ed9t khung c\u00f3 th\u1ec3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng. Trong s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c, c\u00e1c khung \u0111\u1ea1i di\u1ec7n cho c\u00e1c quy tr\u00ecnh con.<\/p>\n
\u26a0\ufe0f Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/h2>\n
Ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi m\u00f4 h\u00ecnh h\u00f3a c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. H\u00e3y c\u1ea9n tr\u1ecdng v\u1edbi nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn n\u00e0y.<\/p>\n
\n- Qu\u00e1 t\u1ea3i s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1:<\/strong> \u0110\u1eebng \u0111\u1eb7t m\u1ecdi t\u01b0\u01a1ng t\u00e1c kh\u1ea3 d\u0129 v\u00e0o m\u1ed9t s\u01a1 \u0111\u1ed3. Chia nh\u1ecf theo t\u00ednh n\u0103ng ho\u1eb7c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n
- B\u1ecf qua IOD:<\/strong> N\u1ebfu b\u1ea1n c\u00f3 n\u0103m s\u01a1 \u0111\u1ed3 Chu\u1ed7i cho m\u1ed9t t\u00ednh n\u0103ng, b\u1ea1n c\u00f3 l\u1ebd c\u1ea7n m\u1ed9t IOD \u0111\u1ec3 k\u1ebft n\u1ed1i ch\u00fang l\u1ea1i v\u1edbi nhau.<\/li>\n
- B\u1ecf qua danh t\u00ednh \u0111\u1ed1i t\u01b0\u1ee3ng:<\/strong> Trong c\u00e1c s\u01a1 \u0111\u1ed3 Giao ti\u1ebfp, h\u00e3y \u0111\u1ea3m b\u1ea3o c\u00e1c th\u1ec3 hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n r\u00f5 r\u00e0ng. S\u1ef1 m\u01a1 h\u1ed3 d\u1eabn \u0111\u1ebfn nh\u1ea7m l\u1eabn v\u1ec1 d\u1eef li\u1ec7u n\u00e0o \u0111ang \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i.<\/li>\n
- Thi\u1ebfu tin nh\u1eafn tr\u1ea3 v\u1ec1:<\/strong> Trong c\u00e1c s\u01a1 \u0111\u1ed3 Chu\u1ed7i, c\u00e1c tin nh\u1eafn tr\u1ea3 v\u1ec1 th\u01b0\u1eddng b\u1ecb b\u1ecf qua. H\u00e3y bao g\u1ed3m ch\u00fang n\u1ebfu d\u1eef li\u1ec7u ph\u1ea3n h\u1ed3i l\u00e0 quan tr\u1ecdng.<\/li>\n
- B\u1ecf qua c\u00e1c t\u01b0\u01a1ng t\u00e1c t\u1ef1 th\u00e2n:<\/strong> \u0110\u00f4i khi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng x\u1eed l\u00fd d\u1eef li\u1ec7u tr\u01b0\u1edbc khi g\u1eedi ti\u1ebfp \u0111i. H\u00e3y th\u1ec3 hi\u1ec7n \u0111i\u1ec1u n\u00e0y b\u1eb1ng v\u00f2ng l\u1eb7p t\u1ef1 th\u00e2n trong s\u01a1 \u0111\u1ed3 Chu\u1ed7i.<\/li>\n<\/ul>\n
\ud83d\udcdd C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho t\u00e0i li\u1ec7u<\/h2>\n
T\u00ednh nh\u1ea5t qu\u00e1n l\u00e0 ch\u00eca kh\u00f3a. Thi\u1ebft l\u1eadp m\u1ed9t ti\u00eau chu\u1ea9n cho \u0111\u1ed9i nh\u00f3m c\u1ee7a b\u1ea1n v\u1ec1 c\u00e1ch t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y.<\/p>\n
\n- Ti\u00eau chu\u1ea9n h\u00f3a k\u00fd hi\u1ec7u:<\/strong> Th\u1ed1ng nh\u1ea5t c\u00e1ch bi\u1ec3u di\u1ec5n tin nh\u1eafn, ph\u1ea3n h\u1ed3i v\u00e0 c\u00e1c \u0111o\u1ea1n.<\/li>\n
- Duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p v\u1edbi c\u01a1 s\u1edf m\u00e3 hi\u1ec7n t\u1ea1i. C\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed7i th\u1eddi c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3.<\/li>\n
- S\u1eed d\u1ee5ng nh\u00e3n r\u00f5 r\u00e0ng:<\/strong> C\u00e1c nh\u00e3n tin nh\u1eafn n\u00ean m\u00f4 t\u1ea3 m\u1ee5c \u0111\u00edch, ch\u1ee9 kh\u00f4ng ch\u1ec9 t\u00ean ph\u01b0\u01a1ng th\u1ee9c (v\u00ed d\u1ee5: \u201cG\u1eedi th\u00f4ng b\u00e1o\u201d thay v\u00ec \u201cnotifyUser\u201d).<\/li>\n
- Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong> N\u1ebfu m\u1ed9t s\u01a1 \u0111\u1ed3 c\u1ea7n ch\u00fa th\u00edch \u0111\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c, th\u00ec n\u00f3 qu\u00e1 ph\u1ee9c t\u1ea1p. \u0110\u01a1n gi\u1ea3n h\u00f3a m\u00f4 h\u00ecnh.<\/li>\n<\/ul>\n
\ud83d\udd0d Nh\u1eefng chi ti\u1ebft k\u1ef9 thu\u1eadt<\/h2>\n
Hi\u1ec3u r\u00f5 c\u00e1c n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ebd gi\u00fap \u00e1p d\u1ee5ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n
Truy\u1ec1n tin nh\u1eafn so v\u1edbi \u0110i\u1ec1u h\u01b0\u1edbng<\/h3>\n
C\u00e1c s\u01a1 \u0111\u1ed3 Chu\u1ed7i th\u1ec3 hi\u1ec7n vi\u1ec7c truy\u1ec1n tin nh\u1eafn. C\u00e1c s\u01a1 \u0111\u1ed3 Giao ti\u1ebfp th\u1ec3 hi\u1ec7n \u0111i\u1ec1u h\u01b0\u1edbng. Trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111i\u1ec1u h\u01b0\u1edbng x\u1ea3y ra th\u00f4ng qua tham chi\u1ebfu \u0111\u1ed1i t\u01b0\u1ee3ng. Truy\u1ec1n tin nh\u1eafn x\u1ea3y ra th\u00f4ng qua l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c. C\u1ea3 hai s\u01a1 \u0111\u1ed3 \u0111\u1ec1u m\u00f4 h\u00ecnh h\u00f3a nh\u1eefng \u0111i\u1ec1u n\u00e0y, nh\u01b0ng v\u1edbi tr\u1ecdng t\u00e2m h\u00ecnh \u1ea3nh kh\u00e1c nhau.<\/p>\n
Tr\u1ea1ng th\u00e1i so v\u1edbi T\u01b0\u01a1ng t\u00e1c<\/h3>\n
\u0110\u1eebng nh\u1ea7m l\u1eabn S\u01a1 \u0111\u1ed3 T\u01b0\u01a1ng t\u00e1c v\u1edbi S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i. S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i th\u1ec3 hi\u1ec7n c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i. S\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c th\u1ec3 hi\u1ec7n c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ed1i h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau. D\u00f9ng s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i cho v\u00f2ng \u0111\u1eddi \u0111\u1ed1i t\u01b0\u1ee3ng, v\u00e0 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c cho lu\u1ed3ng x\u1eed l\u00fd.<\/p>\n
\u0110\u1ed9ng so v\u1edbi T\u0129nh<\/h3>\n
C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y l\u00e0 m\u00f4 h\u00ecnh \u0111\u1ed9ng. Ch\u00fang m\u00f4 t\u1ea3 h\u00e0nh vi theo th\u1eddi gian. C\u00e1c m\u00f4 h\u00ecnh t\u0129nh (nh\u01b0 S\u01a1 \u0111\u1ed3 L\u1edbp) m\u00f4 t\u1ea3 c\u1ea5u tr\u00fac. D\u00f9ng S\u01a1 \u0111\u1ed3 L\u1edbp \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, v\u00e0 S\u01a1 \u0111\u1ed3 T\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1ch ch\u00fang di chuy\u1ec3n d\u1eef li\u1ec7u.<\/p>\n
\ud83d\ude80 M\u1edf r\u1ed9ng n\u1ed7 l\u1ef1c m\u00f4 h\u00ecnh h\u00f3a<\/h2>\n
Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, vi\u1ec7c duy tr\u00ec t\u00e0i li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. C\u00e1c chi\u1ebfn l\u01b0\u1ee3c m\u1edf r\u1ed9ng bao g\u1ed3m:<\/p>\n
\n- Chia nh\u1ecf th\u00e0nh m\u00f4-\u0111un:<\/strong> Chia h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c h\u1ec7 th\u1ed1ng con. M\u1ed7i h\u1ec7 th\u1ed1ng con s\u1ebd c\u00f3 b\u1ed9 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c ri\u00eang c\u1ee7a n\u00f3.<\/li>\n
- Tr\u1eebu t\u01b0\u1ee3ng:<\/strong>S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 lo\u1ea1i b\u1ecf chi ti\u1ebft kh\u1ecfi c\u00e1c cu\u1ed9c \u0111\u00e1nh gi\u00e1 ki\u1ebfn tr\u00fac c\u1ea5p cao.<\/li>\n
- T\u1ef1 \u0111\u1ed9ng h\u00f3a:<\/strong>N\u01a1i c\u00f3 th\u1ec3, h\u00e3y t\u1ea1o s\u01a1 \u0111\u1ed3 t\u1eeb m\u00e3 ngu\u1ed3n ho\u1eb7c nh\u1eadt k\u00fd \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n
B\u1eb1ng c\u00e1ch ch\u1ecdn s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c ph\u00f9 h\u1ee3p, b\u1ea1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n lu\u00f4n r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u00e0 h\u1eefu \u00edch. D\u00f9 b\u1ea1n \u0111ang m\u00f4 ph\u1ecfng m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u0103ng nh\u1eadp \u0111\u01a1n gi\u1ea3n hay m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n ph\u1ee9c t\u1ea1p, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1, S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng v\u00e0 S\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c s\u1ebd quy\u1ebft \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 giao ti\u1ebfp c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"
M\u00f4 h\u00ecnh h\u00f3a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. Khi ghi l\u1ea1i h\u00e0nh vi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng, vi\u1ec7c ch\u1ecdn \u0111\u00fang s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c UML (Ng\u00f4n…<\/p>\n","protected":false},"author":1,"featured_media":237,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML so v\u1edbi S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng","_yoast_wpseo_metadesc":"So s\u00e1nh s\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML, S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng. H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt.","inline_featured_image":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[5],"tags":[6,18],"class_list":["post-236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-interaction-overview-diagram"],"yoast_head":"\n
S\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML so v\u1edbi S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng<\/title>\n<meta name=\"description\" content=\"So s\u00e1nh s\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML, S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng. H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c. 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H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c. 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alt<\/code>, opt<\/code>, ho\u1eb7c loop<\/code>x\u00e1c \u0111\u1ecbnh h\u00e0nh vi \u0111i\u1ec1u ki\u1ec7n ho\u1eb7c l\u1eb7p l\u1ea1i.<\/li>\n<\/ul>\nKhi n\u00e0o n\u00ean s\u1eed d\u1ee5ng S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1<\/h3>\n
Ch\u1ecdn s\u01a1 \u0111\u1ed3 n\u00e0y khi th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t. N\u00f3 l\u00fd t\u01b0\u1edfng cho:<\/p>\n
\n- Chi ti\u1ebft h\u00f3a c\u00e1c lu\u1ed3ng tin nh\u1eafn ph\u1ee9c t\u1ea1p gi\u1eefa nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- Thi\u1ebft k\u1ebf c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u1ee5 th\u1ec3 ho\u1eb7c \u0111i\u1ec3m cu\u1ed1i API.<\/li>\n
- Tr\u1ef1c quan h\u00f3a v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t giao d\u1ecbch.<\/li>\n
- G\u1ee1 l\u1ed7i c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 th\u1eddi gian ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n c\u1ea1nh tranh trong logic.<\/li>\n<\/ul>\n
S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 xu\u1ea5t s\u1eafc trong vi\u1ec7c th\u1ec3 hi\u1ec7n khi n\u00e0o<\/em>m\u1ed9t vi\u1ec7c g\u00ec \u0111\u00f3 x\u1ea3y ra. Ch\u00fang kh\u00f4ng t\u1ef1 nhi\u00ean th\u1ec3 hi\u1ec7n \u1edf \u0111\u00e2u<\/em> c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi nhau, v\u00e0 ch\u00fang c\u0169ng kh\u00f4ng x\u1eed l\u00fd t\u1ed1t lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n c\u1ea5p cao.<\/p>\n\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
\u0110i\u1ec3m m\u1ea1nh ch\u00ednh l\u00e0 s\u1ef1 r\u00f5 r\u00e0ng v\u1ec1 th\u1eddi gian. M\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 theo d\u00f5i m\u1ed9t y\u00eau c\u1ea7u t\u1eeb \u0111\u1ea7u v\u00e0o \u0111\u1ebfn \u0111\u1ea7u ra m\u00e0 kh\u00f4ng g\u00e2y nh\u1ea7m l\u1eabn. Tuy nhi\u00ean, ch\u00fang nhanh ch\u00f3ng tr\u1edf n\u00ean l\u1ed9n x\u1ed9n. N\u1ebfu h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u ti\u1ebfn tr\u00ecnh song song ho\u1eb7c logic nh\u00e1nh ph\u1ee9c t\u1ea1p, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi r\u1ed1i ren c\u00e1c m\u0169i t\u00ean.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Th\u1ee9 t\u1ef1 th\u1eddi gian \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng. D\u1ec5 \u0111\u1ecdc cho c\u00e1c lu\u1ed3ng tuy\u1ebfn t\u00ednh.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Kh\u00f3 th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00f3 th\u1ec3 tr\u1edf n\u00ean l\u1ed9n x\u1ed9n khi c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean tham gia.<\/li>\n<\/ul>\n
\ud83d\udd17 Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/h2>\n
Tr\u01b0\u1edbc \u0111\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u01a1 \u0111\u1ed3 h\u1ee3p t\u00e1c, s\u01a1 \u0111\u1ed3 giao ti\u1ebfp t\u1eadp trung v\u00e0o t\u1ed5 ch\u1ee9c c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thay v\u00ec th\u1ee9 t\u1ef1 c\u00e1c tin nh\u1eafn. Ch\u00fang hi\u1ec3n th\u1ecb c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 c\u00e1c n\u00fat v\u00e0 tin nh\u1eafn nh\u01b0 c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n.<\/p>\n
C\u01a1 ch\u1ebf ch\u00ednh<\/h3>\n\n- C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 n\u00fat:<\/strong>C\u00e1c h\u1ed9p bi\u1ec3u di\u1ec5n c\u00e1c th\u1ec3 hi\u1ec7n ho\u1eb7c l\u1edbp tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- C\u00e1c li\u00ean k\u1ebft nh\u01b0 k\u1ebft n\u1ed1i:<\/strong>C\u00e1c \u0111\u01b0\u1eddng n\u1ed1i k\u1ebft c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng li\u00ean quan.<\/li>\n
- Nh\u00e3n s\u1ed1 h\u1ecdc:<\/strong>C\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 \u0111\u1ec3 ch\u1ec9 th\u1ee9 t\u1ef1 (1, 1.1, 1.2) thay v\u00ec v\u1ecb tr\u00ed kh\u00f4ng gian.<\/li>\n
- C\u00e1c h\u00e0nh tr\u00ecnh \u0111i\u1ec1u h\u01b0\u1edbng:<\/strong>S\u01a1 \u0111\u1ed3 cho th\u1ea5y c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c \u0111\u1ec3 g\u1eedi tin nh\u1eafn.<\/li>\n<\/ul>\n
Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/h3>\n
Lo\u1ea1i s\u01a1 \u0111\u1ed3 n\u00e0y ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng quan tr\u1ecdng h\u01a1n th\u1eddi \u0111i\u1ec3m ch\u00ednh x\u00e1c. H\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p sau:<\/p>\n
\n- Tr\u1ef1c quan h\u00f3a m\u1ea1ng l\u01b0\u1edbi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho m\u1ed9t t\u00ednh n\u0103ng.<\/li>\n
- Hi\u1ec3u r\u00f5 c\u00e1c h\u00e0nh tr\u00ecnh \u0111i\u1ec1u h\u01b0\u1edbng qua \u0111\u1ed3 th\u1ecb \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- C\u00e1c cu\u1ed9c xem x\u00e9t ki\u1ebfn tr\u00fac c\u1ea5p cao n\u01a1i c\u1ea5u tr\u00fac l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/li>\n
- C\u00e1c t\u00ecnh hu\u1ed1ng c\u00f3 \u00edt tin nh\u1eafn nh\u01b0ng k\u1ebft n\u1ed1i \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n
S\u01a1 \u0111\u1ed3 giao ti\u1ebfp cung c\u1ea5p c\u00e1i nh\u00ecn v\u1ec1 m\u1eb7t topo. Ch\u00fang gi\u00fap tr\u1ea3 l\u1eddi c\u00e1c c\u00e2u h\u1ecfi nh\u01b0, ‘Nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o c\u1ea7n giao ti\u1ebfp v\u1edbi nhau?’ thay v\u00ec ‘\u0110i\u1ec1u g\u00ec x\u1ea3y ra tr\u01b0\u1edbc ti\u00ean?’<\/p>\n
\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
B\u1ed1 c\u1ee5c linh ho\u1ea1t. B\u1ea1n c\u00f3 th\u1ec3 s\u1eafp x\u1ebfp c\u00e1c n\u00fat \u0111\u1ec3 l\u00e0m r\u00f5 m\u1ed1i quan h\u1ec7. Tuy nhi\u00ean, th\u1ee9 t\u1ef1 \u00edt tr\u1ef1c quan h\u01a1n. V\u00ec c\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1, b\u1ea1n ph\u1ea3i \u0111\u1ecdc c\u00e1c nh\u00e3n \u0111\u1ec3 hi\u1ec3u lu\u1ed3ng, thay v\u00ec qu\u00e9t t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. Ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u0111\u1ed3 th\u1ecb \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Th\u1ee9 t\u1ef1 b\u1ecb \u1ea9n trong c\u00e1c nh\u00e3n. Kh\u00f3 \u0111\u1ecdc \u0111\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh d\u00e0i v\u00e0 tuy\u1ebfn t\u00ednh.<\/li>\n<\/ul>\n
\ud83d\udd04 Hi\u1ec3u v\u1ec1 s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/h2>\n
S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c (IOD) k\u1ebft h\u1ee3p c\u00e1c y\u1ebfu t\u1ed1 t\u1eeb s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c. Ch\u00fang cung c\u1ea5p c\u00e1i nh\u00ecn c\u1ea5p cao v\u1ec1 m\u1ed9t quy tr\u00ecnh g\u1ed3m nhi\u1ec1u t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau.<\/p>\n
C\u01a1 ch\u1ebf ch\u00ednh<\/h3>\n\n- C\u00e1c n\u00fat:<\/strong>C\u00e1c n\u00fat s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng (h\u00ecnh tr\u00f2n, h\u00ecnh thoi) ki\u1ec3m so\u00e1t lu\u1ed3ng.<\/li>\n
- Khung t\u01b0\u01a1ng t\u00e1c:<\/strong>C\u00e1c khung ch\u1ee9a s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 ho\u1eb7c s\u01a1 \u0111\u1ed3 giao ti\u1ebfp \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u00e1c n\u00fat con.<\/li>\n
- Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n:<\/strong>C\u00e1c m\u0169i t\u00ean gi\u1eefa c\u00e1c khung cho th\u1ea5y s\u1ef1 chuy\u1ec3n ti\u1ebfp t\u1eeb m\u1ed9t t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng t\u00e1c sang t\u00ecnh hu\u1ed1ng kh\u00e1c.<\/li>\n
- Chia nh\u00e1nh:<\/strong>C\u00e1c \u0111i\u1ec3m quy\u1ebft \u0111\u1ecbnh x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng \u0111i t\u01b0\u01a1ng t\u00e1c n\u00e0o c\u1ea7n theo.<\/li>\n<\/ul>\n
Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/h3>\n
IODs r\u1ea5t m\u1ea1nh m\u1ebd trong m\u00f4 h\u00ecnh h\u00f3a c\u1ea5p cao. Ch\u00fang ph\u00f9 h\u1ee3p khi:<\/p>\n
\n- M\u1ed9t t\u00ednh n\u0103ng duy nh\u1ea5t tr\u1ea3i d\u00e0i qua nhi\u1ec1u chu\u1ed7i t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau.<\/li>\n
- B\u1ea1n c\u1ea7n hi\u1ec3n th\u1ecb c\u00e1c v\u00f2ng l\u1eb7p ho\u1eb7c nh\u00e1nh \u0111i\u1ec1u ki\u1ec7n xuy\u00ean su\u1ed1t c\u00e1c t\u01b0\u01a1ng t\u00e1c kh\u00e1c nhau gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/li>\n
- H\u00e0nh vi h\u1ec7 th\u1ed1ng qu\u00e1 ph\u1ee9c t\u1ea1p \u0111\u1ec3 m\u00f4 t\u1ea3 b\u1eb1ng m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 duy nh\u1ea5t.<\/li>\n
- T\u00e0i li\u1ec7u h\u00f3a h\u00e0nh tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng bao g\u1ed3m nhi\u1ec1u tr\u1ea1ng th\u00e1i h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n
H\u00e3y ngh\u0129 \u0111\u1ebfn IOD nh\u01b0 m\u1ee5c l\u1ee5c cho m\u00f4 h\u00ecnh t\u01b0\u01a1ng t\u00e1c c\u1ee7a b\u1ea1n. N\u00f3 d\u1eabn d\u1eaft ng\u01b0\u1eddi \u0111\u1ecdc \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 ho\u1eb7c s\u01a1 \u0111\u1ed3 giao ti\u1ebfp c\u1ee5 th\u1ec3 c\u1ea7n thi\u1ebft cho t\u1eebng b\u01b0\u1edbc.<\/p>\n
\u01afu \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n
\u01afu \u0111i\u1ec3m ch\u00ednh l\u00e0 t\u00ednh tr\u1eebu t\u01b0\u1ee3ng. B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb b\u1ee9c tranh t\u1ed5ng th\u1ec3 m\u00e0 kh\u00f4ng b\u1ecb m\u1eafc k\u1eb9t v\u00e0o chi ti\u1ebft tin nh\u1eafn. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u00e0i li\u1ec7u d\u1ec5 qu\u1ea3n l\u00fd. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 n\u00f3 thi\u1ebfu chi ti\u1ebft \u1edf c\u1ea5p \u0111\u1ed9 tin nh\u1eafn. N\u00f3 kh\u00f4ng th\u1ec3 hi\u1ec7n logic n\u1ed9i b\u1ed9 c\u1ee7a c\u00e1c t\u01b0\u01a1ng t\u00e1c b\u00ean trong c\u00e1c khung.<\/p>\n
\n- \u01afu \u0111i\u1ec3m:<\/strong>Qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u1ee9c t\u1ea1p. K\u1ebft h\u1ee3p lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u1edbi chi ti\u1ebft t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong>Y\u00eau c\u1ea7u c\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed3ng gh\u00e9p chi ti\u1ebft. Kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi logic ch\u1ec9 m\u1ed9t b\u01b0\u1edbc.<\/li>\n<\/ul>\n
\u2696\ufe0f Nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh nh\u00ecn nhanh<\/h2>\n
\u0110\u1ec3 l\u00e0m r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t, ch\u00fang ta c\u00f3 th\u1ec3 so s\u00e1nh ba lo\u1ea1i s\u01a1 \u0111\u1ed3 tr\u00ean nhi\u1ec1u kh\u00eda c\u1ea1nh kh\u00e1c nhau. B\u1ea3ng n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00f4ng c\u1ee5 n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u t\u00e0i li\u1ec7u h\u00f3a c\u1ee5 th\u1ec3.<\/p>\n
\n\n\nT\u00ednh n\u0103ng<\/th>\n S\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1<\/th>\n S\u01a1 \u0111\u1ed3 giao ti\u1ebfp<\/th>\n S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c<\/th>\n<\/tr>\n<\/thead>\n \n\n\u0110i\u1ec3m t\u1eadp trung ch\u00ednh<\/strong><\/td>\nTh\u1eddi gian v\u00e0 th\u1ee9 t\u1ef1<\/td>\n M\u1ed1i quan h\u1ec7 \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n Lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n & T\u00ecnh hu\u1ed1ng<\/td>\n<\/tr>\n \nB\u1ed1 c\u1ee5c<\/strong><\/td>\nTr\u1ee5c th\u1eddi gian th\u1eb3ng \u0111\u1ee9ng<\/td>\n Topo linh ho\u1ea1t<\/td>\n Lu\u1ed3ng ho\u1ea1t \u0111\u1ed9ng<\/td>\n<\/tr>\n \nPh\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi<\/strong><\/td>\nLu\u1ed3ng tin nh\u1eafn tuy\u1ebfn t\u00ednh<\/td>\n \u0110\u01b0\u1eddng \u0111i \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng<\/td>\n Logic nh\u00e1nh ph\u1ee9c t\u1ea1p<\/td>\n<\/tr>\n \nM\u1ee9c \u0111\u1ed9 chi ti\u1ebft<\/strong><\/td>\nCao (m\u1ee9c tin nh\u1eafn)<\/td>\n Trung b\u00ecnh (m\u1ee9c li\u00ean k\u1ebft)<\/td>\n Th\u1ea5p (m\u1ee9c t\u00ecnh hu\u1ed1ng)<\/td>\n<\/tr>\n \nX\u1eed l\u00fd \u0111\u1ed9 ph\u1ee9c t\u1ea1p<\/strong><\/td>\nTh\u1ea5p \u0111\u1ebfn trung b\u00ecnh<\/td>\n Trung b\u00ecnh<\/td>\n Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\ud83e\udded Khung quy\u1ebft \u0111\u1ecbnh: Ch\u1ecdn s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p<\/h2>\n
Vi\u1ec7c ch\u1ecdn s\u01a1 \u0111\u1ed3 \u0111\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee5c ti\u00eau c\u1ee5 th\u1ec3 c\u1ee7a t\u00e0i li\u1ec7u c\u1ee7a b\u1ea1n. S\u1eed d\u1ee5ng khung sau \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ecnh hu\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n
1. \u0110i\u1ec3m t\u1eadp trung c\u00f3 ph\u1ea3i l\u00e0 th\u1eddi gian?<\/h3>\n
N\u1ebfu c\u00e1c b\u00ean li\u00ean quan c\u1ee7a b\u1ea1n c\u1ea7n bi\u1ebft ch\u00ednh x\u00e1c th\u1eddi \u0111i\u1ec3m m\u1ed9t thao t\u00e1c ghi d\u1eef li\u1ec7u v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u x\u1ea3y ra so v\u1edbi ph\u1ea3n h\u1ed3i c\u1ee7a API, th\u00ec s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00fang. Tr\u1ee5c th\u1eb3ng \u0111\u1ee9ng cung c\u1ea5p bi\u1ec3u di\u1ec5n tr\u1ef1c quan ngay l\u1eadp t\u1ee9c v\u1ec1 \u0111\u1ed9 tr\u1ec5 v\u00e0 th\u1ee9 t\u1ef1.<\/p>\n
2. \u0110i\u1ec3m t\u1eadp trung c\u00f3 ph\u1ea3i l\u00e0 c\u1ea5u tr\u00fac \u0111\u1ed1i t\u01b0\u1ee3ng?<\/h3>\n
N\u1ebfu ki\u1ebfn tr\u00fac ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t m\u1ea1ng l\u01b0\u1edbi c\u1ee5 th\u1ec3 c\u00e1c d\u1ecbch v\u1ee5 ho\u1eb7c \u0111\u1ed1i t\u01b0\u1ee3ng giao ti\u1ebfp th\u01b0\u1eddng xuy\u00ean, s\u01a1 \u0111\u1ed3 giao ti\u1ebfp s\u1ebd l\u00e0m r\u00f5 topo. N\u00f3 cho th\u1ea5y \u0111\u1ed1i t\u01b0\u1ee3ng A n\u00f3i chuy\u1ec7n v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng B, v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng B n\u00f3i chuy\u1ec7n v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng C, m\u00e0 kh\u00f4ng c\u1ea7n m\u1ed9t th\u1eddi gian bi\u1ec3u nghi\u00eam ng\u1eb7t.<\/p>\n
3. Quy tr\u00ecnh c\u00f3 ph\u1ee9c t\u1ea1p kh\u00f4ng?<\/h3>\n
N\u1ebfu t\u00ednh n\u0103ng bao g\u1ed3m nhi\u1ec1u \u0111i\u1ec3m quy\u1ebft \u0111\u1ecbnh, th\u1eed l\u1ea1i ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng \u0111i thay th\u1ebf, m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 duy nh\u1ea5t s\u1ebd tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc. S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c chia quy tr\u00ecnh th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf d\u1ec5 qu\u1ea3n l\u00fd. M\u1ed7i ph\u1ea7n c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1.<\/p>\n
\ud83d\udee0\ufe0f C\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/h2>\n
H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o c\u00e1c nhi\u1ec7m v\u1ee5 m\u00f4 h\u00ecnh h\u00f3a th\u1ef1c t\u1ebf.<\/p>\n
T\u00ecnh hu\u1ed1ng A: H\u1ec7 th\u1ed1ng \u0111\u0103ng nh\u1eadp ng\u01b0\u1eddi d\u00f9ng<\/h3>\n
Ng\u01b0\u1eddi d\u00f9ng nh\u1eadp th\u00f4ng tin x\u00e1c th\u1ef1c, h\u1ec7 th\u1ed1ng x\u00e1c minh ch\u00fang v\u00e0 c\u1ea5p m\u1ed9t m\u00e3 th\u00f4ng b\u00e1o. \u0110\u00e2y l\u00e0 m\u1ed9t lu\u1ed3ng tuy\u1ebfn t\u00ednh.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong> S\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1.<\/li>\n
- L\u00fd do:<\/strong> Th\u1ee9 t\u1ef1 c\u00e1c b\u01b0\u1edbc x\u00e1c th\u1ef1c l\u00e0 r\u1ea5t quan tr\u1ecdng. Lu\u1ed3ng t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi ph\u00f9 h\u1ee3p v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n
T\u00ecnh hu\u1ed1ng B: Ki\u1ec3m tra t\u1ed3n kho th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed<\/h3>\n
M\u1ed9t y\u00eau c\u1ea7u \u0111\u1eb7t h\u00e0ng ki\u1ec3m tra nhi\u1ec1u kho h\u00e0ng. N\u1ebfu m\u1ed9t kho th\u1ea5t b\u1ea1i, n\u00f3 s\u1ebd th\u1eed kho kh\u00e1c. N\u1ebfu th\u00e0nh c\u00f4ng, n\u00f3 c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong>S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c.<\/li>\n
- L\u00fd do:<\/strong> \u0110i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn logic nh\u00e1nh (n\u1ebfu\/ho\u1eb7c). S\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb n\u00fat quy\u1ebft \u0111\u1ecbnh v\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn c\u00e1c s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1 c\u1ee5 th\u1ec3 cho t\u1eebng l\u1ea7n ki\u1ec3m tra kho h\u00e0ng.<\/li>\n<\/ul>\n
T\u00ecnh hu\u1ed1ng C: Giao ti\u1ebfp gi\u1eefa c\u00e1c d\u1ecbch v\u1ee5 vi m\u00f4<\/h3>\n
D\u1ecbch v\u1ee5 A g\u1ecdi d\u1ecbch v\u1ee5 B, d\u1ecbch v\u1ee5 B g\u1ecdi d\u1ecbch v\u1ee5 C. D\u1ecbch v\u1ee5 C c\u0169ng g\u1ecdi d\u1ecbch v\u1ee5 D.<\/p>\n
\n- \u0110\u1ec1 xu\u1ea5t:<\/strong>S\u01a1 \u0111\u1ed3 giao ti\u1ebfp.<\/li>\n
- L\u00fd do:<\/strong> Ki\u1ebfn tr\u00fac \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c k\u1ebft n\u1ed1i. Hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb c\u00e1c d\u1ecbch v\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi th\u1eddi gian g\u1eedi tin nh\u1eafn.<\/li>\n<\/ul>\n
\u2699\ufe0f C\u00e1c k\u1ef9 thu\u1eadt m\u00f4 h\u00ecnh h\u00f3a n\u00e2ng cao<\/h2>\n
M\u00f4 h\u00ecnh h\u00f3a hi\u1ec7u qu\u1ea3 th\u01b0\u1eddng bao g\u1ed3m vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y. Hi\u1ec3u r\u00f5 c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c s\u1ebd c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng t\u00e0i li\u1ec7u t\u1ed5ng th\u1ec3.<\/p>\n
L\u1ed3ng gh\u00e9p c\u00e1c t\u01b0\u01a1ng t\u00e1c<\/h3>\n
B\u1ea1n c\u00f3 th\u1ec3 l\u1ed3ng m\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c b\u00ean trong m\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c kh\u00e1c. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p t\u00e0i li\u1ec7u h\u00f3a theo c\u1ea5p \u0111\u1ed9. Tuy nhi\u00ean, h\u00e3y gi\u1eef \u0111\u1ed9 s\u00e2u \u1edf m\u1ee9c th\u1ea5p \u0111\u1ec3 duy tr\u00ec t\u00ednh d\u1ec5 \u0111\u1ecdc.<\/p>\n
K\u1ebft h\u1ee3p v\u1edbi s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng<\/h3>\n
M\u1ed9t s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng chuy\u00ean bi\u1ec7t. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u chu\u1ea9n c\u1ee7a s\u01a1 \u0111\u1ed3 ho\u1ea1t \u0111\u1ed9ng cho lu\u1ed3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 ch\u00e8n c\u00e1c khung t\u01b0\u01a1ng t\u00e1c cho c\u00e1c ph\u1ea7n c\u00f4ng vi\u1ec7c n\u1eb7ng. C\u00e1ch ti\u1ebfp c\u1eadn k\u1ebft h\u1ee3p n\u00e0y ph\u1ed5 bi\u1ebfn trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng quy m\u00f4 l\u1edbn.<\/p>\n
Tinh ch\u1ec9nh b\u1eb1ng khung<\/h3>\n
S\u1eed d\u1ee5ng khung \u0111\u1ec3 nh\u00f3m c\u00e1c t\u01b0\u01a1ng t\u00e1c li\u00ean quan. Trong s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1, m\u1ed9t khung c\u00f3 th\u1ec3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 ho\u1eb7c m\u1ed9t c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng. Trong s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c, c\u00e1c khung \u0111\u1ea1i di\u1ec7n cho c\u00e1c quy tr\u00ecnh con.<\/p>\n
\u26a0\ufe0f Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/h2>\n
Ngay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi m\u00f4 h\u00ecnh h\u00f3a c\u00f3 kinh nghi\u1ec7m c\u0169ng m\u1eafc sai l\u1ea7m. H\u00e3y c\u1ea9n tr\u1ecdng v\u1edbi nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn n\u00e0y.<\/p>\n
\n- Qu\u00e1 t\u1ea3i s\u01a1 \u0111\u1ed3 th\u1ee9 t\u1ef1:<\/strong> \u0110\u1eebng \u0111\u1eb7t m\u1ecdi t\u01b0\u01a1ng t\u00e1c kh\u1ea3 d\u0129 v\u00e0o m\u1ed9t s\u01a1 \u0111\u1ed3. Chia nh\u1ecf theo t\u00ednh n\u0103ng ho\u1eb7c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n
- B\u1ecf qua IOD:<\/strong> N\u1ebfu b\u1ea1n c\u00f3 n\u0103m s\u01a1 \u0111\u1ed3 Chu\u1ed7i cho m\u1ed9t t\u00ednh n\u0103ng, b\u1ea1n c\u00f3 l\u1ebd c\u1ea7n m\u1ed9t IOD \u0111\u1ec3 k\u1ebft n\u1ed1i ch\u00fang l\u1ea1i v\u1edbi nhau.<\/li>\n
- B\u1ecf qua danh t\u00ednh \u0111\u1ed1i t\u01b0\u1ee3ng:<\/strong> Trong c\u00e1c s\u01a1 \u0111\u1ed3 Giao ti\u1ebfp, h\u00e3y \u0111\u1ea3m b\u1ea3o c\u00e1c th\u1ec3 hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111\u00e1nh nh\u00e3n r\u00f5 r\u00e0ng. S\u1ef1 m\u01a1 h\u1ed3 d\u1eabn \u0111\u1ebfn nh\u1ea7m l\u1eabn v\u1ec1 d\u1eef li\u1ec7u n\u00e0o \u0111ang \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i.<\/li>\n
- Thi\u1ebfu tin nh\u1eafn tr\u1ea3 v\u1ec1:<\/strong> Trong c\u00e1c s\u01a1 \u0111\u1ed3 Chu\u1ed7i, c\u00e1c tin nh\u1eafn tr\u1ea3 v\u1ec1 th\u01b0\u1eddng b\u1ecb b\u1ecf qua. H\u00e3y bao g\u1ed3m ch\u00fang n\u1ebfu d\u1eef li\u1ec7u ph\u1ea3n h\u1ed3i l\u00e0 quan tr\u1ecdng.<\/li>\n
- B\u1ecf qua c\u00e1c t\u01b0\u01a1ng t\u00e1c t\u1ef1 th\u00e2n:<\/strong> \u0110\u00f4i khi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng x\u1eed l\u00fd d\u1eef li\u1ec7u tr\u01b0\u1edbc khi g\u1eedi ti\u1ebfp \u0111i. H\u00e3y th\u1ec3 hi\u1ec7n \u0111i\u1ec1u n\u00e0y b\u1eb1ng v\u00f2ng l\u1eb7p t\u1ef1 th\u00e2n trong s\u01a1 \u0111\u1ed3 Chu\u1ed7i.<\/li>\n<\/ul>\n
\ud83d\udcdd C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho t\u00e0i li\u1ec7u<\/h2>\n
T\u00ednh nh\u1ea5t qu\u00e1n l\u00e0 ch\u00eca kh\u00f3a. Thi\u1ebft l\u1eadp m\u1ed9t ti\u00eau chu\u1ea9n cho \u0111\u1ed9i nh\u00f3m c\u1ee7a b\u1ea1n v\u1ec1 c\u00e1ch t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y.<\/p>\n
\n- Ti\u00eau chu\u1ea9n h\u00f3a k\u00fd hi\u1ec7u:<\/strong> Th\u1ed1ng nh\u1ea5t c\u00e1ch bi\u1ec3u di\u1ec5n tin nh\u1eafn, ph\u1ea3n h\u1ed3i v\u00e0 c\u00e1c \u0111o\u1ea1n.<\/li>\n
- Duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9:<\/strong> \u0110\u1ea3m b\u1ea3o c\u00e1c s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p v\u1edbi c\u01a1 s\u1edf m\u00e3 hi\u1ec7n t\u1ea1i. C\u00e1c s\u01a1 \u0111\u1ed3 l\u1ed7i th\u1eddi c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3.<\/li>\n
- S\u1eed d\u1ee5ng nh\u00e3n r\u00f5 r\u00e0ng:<\/strong> C\u00e1c nh\u00e3n tin nh\u1eafn n\u00ean m\u00f4 t\u1ea3 m\u1ee5c \u0111\u00edch, ch\u1ee9 kh\u00f4ng ch\u1ec9 t\u00ean ph\u01b0\u01a1ng th\u1ee9c (v\u00ed d\u1ee5: \u201cG\u1eedi th\u00f4ng b\u00e1o\u201d thay v\u00ec \u201cnotifyUser\u201d).<\/li>\n
- Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong> N\u1ebfu m\u1ed9t s\u01a1 \u0111\u1ed3 c\u1ea7n ch\u00fa th\u00edch \u0111\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c, th\u00ec n\u00f3 qu\u00e1 ph\u1ee9c t\u1ea1p. \u0110\u01a1n gi\u1ea3n h\u00f3a m\u00f4 h\u00ecnh.<\/li>\n<\/ul>\n
\ud83d\udd0d Nh\u1eefng chi ti\u1ebft k\u1ef9 thu\u1eadt<\/h2>\n
Hi\u1ec3u r\u00f5 c\u00e1c n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ebd gi\u00fap \u00e1p d\u1ee5ng c\u00e1c s\u01a1 \u0111\u1ed3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n
Truy\u1ec1n tin nh\u1eafn so v\u1edbi \u0110i\u1ec1u h\u01b0\u1edbng<\/h3>\n
C\u00e1c s\u01a1 \u0111\u1ed3 Chu\u1ed7i th\u1ec3 hi\u1ec7n vi\u1ec7c truy\u1ec1n tin nh\u1eafn. C\u00e1c s\u01a1 \u0111\u1ed3 Giao ti\u1ebfp th\u1ec3 hi\u1ec7n \u0111i\u1ec1u h\u01b0\u1edbng. Trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111i\u1ec1u h\u01b0\u1edbng x\u1ea3y ra th\u00f4ng qua tham chi\u1ebfu \u0111\u1ed1i t\u01b0\u1ee3ng. Truy\u1ec1n tin nh\u1eafn x\u1ea3y ra th\u00f4ng qua l\u1eddi g\u1ecdi ph\u01b0\u01a1ng th\u1ee9c. C\u1ea3 hai s\u01a1 \u0111\u1ed3 \u0111\u1ec1u m\u00f4 h\u00ecnh h\u00f3a nh\u1eefng \u0111i\u1ec1u n\u00e0y, nh\u01b0ng v\u1edbi tr\u1ecdng t\u00e2m h\u00ecnh \u1ea3nh kh\u00e1c nhau.<\/p>\n
Tr\u1ea1ng th\u00e1i so v\u1edbi T\u01b0\u01a1ng t\u00e1c<\/h3>\n
\u0110\u1eebng nh\u1ea7m l\u1eabn S\u01a1 \u0111\u1ed3 T\u01b0\u01a1ng t\u00e1c v\u1edbi S\u01a1 \u0111\u1ed3 M\u00e1y tr\u1ea1ng th\u00e1i. S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i th\u1ec3 hi\u1ec7n c\u00e1ch m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i. S\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c th\u1ec3 hi\u1ec7n c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ed1i h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau. D\u00f9ng s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i cho v\u00f2ng \u0111\u1eddi \u0111\u1ed1i t\u01b0\u1ee3ng, v\u00e0 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c cho lu\u1ed3ng x\u1eed l\u00fd.<\/p>\n
\u0110\u1ed9ng so v\u1edbi T\u0129nh<\/h3>\n
C\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y l\u00e0 m\u00f4 h\u00ecnh \u0111\u1ed9ng. Ch\u00fang m\u00f4 t\u1ea3 h\u00e0nh vi theo th\u1eddi gian. C\u00e1c m\u00f4 h\u00ecnh t\u0129nh (nh\u01b0 S\u01a1 \u0111\u1ed3 L\u1edbp) m\u00f4 t\u1ea3 c\u1ea5u tr\u00fac. D\u00f9ng S\u01a1 \u0111\u1ed3 L\u1edbp \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, v\u00e0 S\u01a1 \u0111\u1ed3 T\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1ch ch\u00fang di chuy\u1ec3n d\u1eef li\u1ec7u.<\/p>\n
\ud83d\ude80 M\u1edf r\u1ed9ng n\u1ed7 l\u1ef1c m\u00f4 h\u00ecnh h\u00f3a<\/h2>\n
Khi h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n, vi\u1ec7c duy tr\u00ec t\u00e0i li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n. C\u00e1c chi\u1ebfn l\u01b0\u1ee3c m\u1edf r\u1ed9ng bao g\u1ed3m:<\/p>\n
\n- Chia nh\u1ecf th\u00e0nh m\u00f4-\u0111un:<\/strong> Chia h\u1ec7 th\u1ed1ng th\u00e0nh c\u00e1c h\u1ec7 th\u1ed1ng con. M\u1ed7i h\u1ec7 th\u1ed1ng con s\u1ebd c\u00f3 b\u1ed9 s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c ri\u00eang c\u1ee7a n\u00f3.<\/li>\n
- Tr\u1eebu t\u01b0\u1ee3ng:<\/strong>S\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 t\u1ed5ng quan t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 lo\u1ea1i b\u1ecf chi ti\u1ebft kh\u1ecfi c\u00e1c cu\u1ed9c \u0111\u00e1nh gi\u00e1 ki\u1ebfn tr\u00fac c\u1ea5p cao.<\/li>\n
- T\u1ef1 \u0111\u1ed9ng h\u00f3a:<\/strong>N\u01a1i c\u00f3 th\u1ec3, h\u00e3y t\u1ea1o s\u01a1 \u0111\u1ed3 t\u1eeb m\u00e3 ngu\u1ed3n ho\u1eb7c nh\u1eadt k\u00fd \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n
B\u1eb1ng c\u00e1ch ch\u1ecdn s\u01a1 \u0111\u1ed3 ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c ph\u00f9 h\u1ee3p, b\u1ea1n \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n lu\u00f4n r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u00e0 h\u1eefu \u00edch. D\u00f9 b\u1ea1n \u0111ang m\u00f4 ph\u1ecfng m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u0103ng nh\u1eadp \u0111\u01a1n gi\u1ea3n hay m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n ph\u1ee9c t\u1ea1p, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1, S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng v\u00e0 S\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c s\u1ebd quy\u1ebft \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 giao ti\u1ebfp c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"
M\u00f4 h\u00ecnh h\u00f3a ki\u1ebfn tr\u00fac ph\u1ea7n m\u1ec1m \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. Khi ghi l\u1ea1i h\u00e0nh vi c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng, vi\u1ec7c ch\u1ecdn \u0111\u00fang s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c UML (Ng\u00f4n…<\/p>\n","protected":false},"author":1,"featured_media":237,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"S\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML so v\u1edbi S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng","_yoast_wpseo_metadesc":"So s\u00e1nh s\u01a1 \u0111\u1ed3 T\u1ed5ng quan T\u01b0\u01a1ng t\u00e1c UML, S\u01a1 \u0111\u1ed3 Th\u1ee9 t\u1ef1 v\u00e0 S\u01a1 \u0111\u1ed3 Truy\u1ec1n th\u00f4ng. H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a h\u1ec7 th\u1ed1ng ch\u00ednh x\u00e1c. H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt.","inline_featured_image":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[5],"tags":[6,18],"class_list":["post-236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-interaction-overview-diagram"],"yoast_head":"\n
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