{"id":4314,"date":"2026-04-08T23:27:04","date_gmt":"2026-04-08T23:27:04","guid":{"rendered":"https:\/\/www.diagrams-ai.com\/vn\/common-use-case-diagram-mistakes-product-managers\/"},"modified":"2026-04-08T23:27:04","modified_gmt":"2026-04-08T23:27:04","slug":"common-use-case-diagram-mistakes-product-managers","status":"publish","type":"post","link":"https:\/\/www.diagrams-ai.com\/vn\/common-use-case-diagram-mistakes-product-managers\/","title":{"rendered":"Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng m\u00e0 c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng m\u1eafc ph\u1ea3i v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ch\u00fang"},"content":{"rendered":"<p>C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i then ch\u1ed1t gi\u1eefa chi\u1ebfn l\u01b0\u1ee3c kinh doanh v\u00e0 th\u1ef1c thi k\u1ef9 thu\u1eadt. M\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd nh\u1ea5t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y l\u00e0 s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Nh\u1eefng bi\u1ec3u \u0111\u1ed3 tr\u1ef1c quan n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1ch ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng, n\u00eau r\u00f5 ranh gi\u1edbi, c\u00e1c t\u00e1c nh\u00e2n v\u00e0 h\u00e0nh vi li\u00ean quan. Tuy nhi\u00ean, d\u00f9 c\u00f3 t\u1ea7m quan tr\u1ecdng l\u1edbn, nhi\u1ec1u nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m v\u1eabn t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 g\u00e2y hi\u1ec3u l\u1ea7m, qu\u00e1 ph\u1ee9c t\u1ea1p ho\u1eb7c kh\u00f4ng ch\u00ednh x\u00e1c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt. Khi s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ea5t b\u1ea1i, h\u1ec7 qu\u1ea3 lan r\u1ed9ng \u0111\u1ebfn kh\u00e2u ph\u00e1t tri\u1ec3n, ki\u1ec3m th\u1eed v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 tr\u1ea3i nghi\u1ec7m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/p>\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y. Ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n x\u1ea3y ra, t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n, v\u00e0 cung c\u1ea5p c\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 \u0111\u1ec3 kh\u1eafc ph\u1ee5c. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 nh\u1eefng chi ti\u1ebft tinh t\u1ebf trong m\u00f4 h\u00ecnh h\u00f3a UML, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea7m nh\u00ecn c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ea1t m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 r\u00f5 r\u00e0ng.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Whimsical infographic illustrating six common Use Case Diagram mistakes Product Managers make and how to fix them: misidentifying actors, incorrect granularity, confusing relationships, ignoring system boundaries, neglecting maintenance, and overlooking non-functional requirements. Features playful cartoon visuals with red X marks for errors, green checkmarks for solutions, and a best practices checklist. Designed in 16:9 aspect ratio with pastel colors, hand-drawn elements, and clear English typography for product strategy teams.\" decoding=\"async\" src=\"https:\/\/www.diagrams-ai.com\/wp-content\/uploads\/2026\/04\/use-case-diagram-mistakes-product-managers-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83e\uddd0 T\u1ea1i sao s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi chi\u1ebfn l\u01b0\u1ee3c s\u1ea3n ph\u1ea9m<\/h2>\n<p>S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t b\u00e0i t\u1eadp v\u1ebd. \u0110\u00f3 l\u00e0 c\u00f4ng c\u1ee5 m\u00f4 t\u1ea3 ch\u1ee9c n\u0103ng. N\u00f3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cH\u1ec7 th\u1ed1ng l\u00e0m g\u00ec cho ng\u01b0\u1eddi d\u00f9ng?\u201d Kh\u00e1c v\u1edbi b\u1ea3n ph\u00e1c th\u1ea3o b\u1ed1 c\u1ee5c (wireframes), hay s\u01a1 \u0111\u1ed3 lu\u1ed3ng logic (flowcharts), s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1eadp trung v\u00e0o<strong>t\u01b0\u01a1ng t\u00e1c<\/strong>. Ch\u00fang x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1ee5c ti\u00eau ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00e0 c\u00e1c kh\u1ea3 n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ed7 tr\u1ee3 nh\u1eefng m\u1ee5c ti\u00eau \u0111\u00f3.<\/p>\n<p>Khi c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y b\u1ecb l\u1ed7i, s\u1ebd n\u1ea3y sinh m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1:<\/p>\n<ul>\n<li><strong>M\u1edf r\u1ed9ng ph\u1ea1m vi kh\u00f4ng ki\u1ec3m so\u00e1t:<\/strong>C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 tri\u1ec3n khai nh\u1eefng t\u00ednh n\u0103ng ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng, v\u00ec s\u01a1 \u0111\u1ed3 \u0111\u00e3 ng\u1ee5 \u00fd ph\u1ea1m vi r\u1ed9ng h\u01a1n.<\/li>\n<li><strong>Kho\u1ea3ng tr\u1ed1ng ki\u1ec3m th\u1eed:<\/strong>\u0110\u1ed9i QA c\u00f3 th\u1ec3 b\u1ecf s\u00f3t c\u00e1c \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng n\u1ebfu c\u00e1c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng.<\/li>\n<li><strong>S\u1ef1 \u0111\u1ed5 v\u1ee1 trong giao ti\u1ebfp:<\/strong>C\u00e1c b\u00ean li\u00ean quan c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh nh\u1eefng m\u00f4 h\u00ecnh t\u01b0 duy kh\u00e1c nhau v\u1ec1 s\u1ea3n ph\u1ea9m d\u1ef1a tr\u00ean h\u00ecnh \u1ea3nh m\u01a1 h\u1ed3.<\/li>\n<\/ul>\n<p>Vi\u1ec7c kh\u1eafc ph\u1ee5c nh\u1eefng l\u1ed7i n\u00e0y s\u1edbm s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 ngu\u1ed3n l\u1ef1c v\u1ec1 sau. H\u00e3y c\u00f9ng \u0111i s\u00e2u v\u00e0o nh\u1eefng l\u0129nh v\u1ef1c c\u1ee5 th\u1ec3 m\u00e0 c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng g\u1eb7p kh\u00f3 kh\u0103n.<\/p>\n<h2>\ud83d\udc65 Sai l\u1ea7m 1: X\u00e1c \u0111\u1ecbnh sai t\u00e1c nh\u00e2n<\/h2>\n<p>T\u00e1c nh\u00e2n \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ef1c th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m g\u00e2y nh\u1ea7m l\u1eabn \u0111\u1ea7u ti\u00ean. M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 nh\u1ea7m l\u1eabn gi\u1eefa c\u00e1c vai tr\u00f2 ng\u01b0\u1eddi d\u00f9ng c\u1ee5 th\u1ec3 v\u1edbi ch\u00ednh h\u1ec7 th\u1ed1ng, ho\u1eb7c kh\u00f4ng ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 n\u1ed9i b\u1ed9 v\u00e0 b\u00ean ngo\u00e0i.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng li\u1ec7t k\u00ea m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ph\u1ea7n m\u1ec1m nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n. V\u00ed d\u1ee5, li\u1ec7t k\u00ea \u201cQu\u1ea3n tr\u1ecb vi\u00ean\u201d, \u201cQu\u1ea3n l\u00fd\u201d, \u201cGi\u00e1m s\u00e1t vi\u00ean\u201d v\u00e0 \u201cNg\u01b0\u1eddi d\u00f9ng\u201d khi t\u1ea5t c\u1ea3 \u0111\u1ec1u th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c gi\u1ed1ng nhau trong h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra ti\u1ebfng \u1ed3n. M\u1eb7t kh\u00e1c, h\u1ecd qu\u00ean bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn c\u1ed5ng thanh to\u00e1n b\u00ean th\u1ee9 ba, c\u1ed5ng \u0111\u00f3 ch\u00ednh l\u00e0 m\u1ed9t t\u00e1c nh\u00e2n, d\u00f9 n\u00f3 l\u00e0 ph\u1ea7n m\u1ec1m.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>Khi c\u00e1c t\u00e1c nh\u00e2n b\u1ecb x\u00e1c \u0111\u1ecbnh sai, c\u00e1c y\u00eau c\u1ea7u ph\u00e1t sinh s\u1ebd tr\u1edf n\u00ean h\u1ed7n lo\u1ea1n. \u0110\u1ed9i ph\u00e1t tri\u1ec3n kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u1ee9c \u0111\u1ed9 quy\u1ec1n h\u1ea1n. C\u00e1c y\u00eau c\u1ea7u b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 b\u1ecb b\u1ecf qua n\u1ebfu kh\u00f4ng ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa t\u00e1c nh\u00e2n \u201cQu\u1ea3n tr\u1ecb vi\u00ean\u201d v\u00e0 \u201cNg\u01b0\u1eddi d\u00f9ng\u201d.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>\u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, h\u00e3y \u00e1p d\u1ee5ng c\u00e1c ti\u00eau ch\u00ed sau khi x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n:<\/p>\n<ul>\n<li><strong>T\u01b0\u01a1ng t\u00e1c b\u00ean ngo\u00e0i:<\/strong>Li\u1ec7u th\u1ef1c th\u1ec3 \u0111\u00f3 c\u00f3 kh\u1edfi t\u1ea1o ho\u1eb7c nh\u1eadn d\u1eef li\u1ec7u t\u1eeb ranh gi\u1edbi h\u1ec7 th\u1ed1ng kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec \u0111\u00f3 l\u00e0 m\u1ed9t t\u00e1c nh\u00e2n.<\/li>\n<li><strong>Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a vai tr\u00f2:<\/strong>Nh\u00f3m ng\u01b0\u1eddi d\u00f9ng theo h\u00e0nh vi. N\u1ebfu \u201cQu\u1ea3n l\u00fd\u201d v\u00e0 \u201cGi\u00e1m s\u00e1t vi\u00ean\u201d ch\u1ec9 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00ea duy\u1ec7t y\u00eau c\u1ea7u, th\u00ec th\u01b0\u1eddng c\u00f3 th\u1ec3 gom chung d\u01b0\u1edbi m\u1ed9t t\u00e1c nh\u00e2n \u201cNg\u01b0\u1eddi ph\u00ea duy\u1ec7t\u201d n\u1ebfu quy\u1ec1n k\u1ef9 thu\u1eadt c\u1ee7a h\u1ecd gi\u1ed1ng nhau.<\/li>\n<li><strong>Bao g\u1ed3m h\u1ec7 th\u1ed1ng:<\/strong>Kh\u00f4ng gi\u1edbi h\u1ea1n c\u00e1c t\u00e1c nh\u00e2n ch\u1ec9 \u1edf con ng\u01b0\u1eddi. C\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u, API b\u00ean ngo\u00e0i v\u00e0 thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng c\u1ea7n \u0111\u01b0\u1ee3c bao g\u1ed3m n\u1ebfu ch\u00fang k\u00edch ho\u1ea1t m\u1ed9t ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<h3>B\u1ea3ng so s\u00e1nh: X\u00e1c \u0111\u1ecbnh t\u00e1c nh\u00e2n<\/h3>\n<table border=\"1\" cellpadding=\"10\" cellspacing=\"0\">\n<tr>\n<th><strong>C\u00e1ch ti\u1ebfp c\u1eadn sai l\u1ea7m<\/strong><\/th>\n<th><strong>C\u00e1ch ti\u1ebfp c\u1eadn \u0111\u00fang \u0111\u1eafn<\/strong><\/th>\n<th><strong>T\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng<\/strong><\/th>\n<\/tr>\n<tr>\n<td>Li\u1ec7t k\u00ea t\u1eebng ch\u1ee9c danh c\u00f4ng vi\u1ec7c (v\u00ed d\u1ee5: Qu\u1ea3n l\u00fd nh\u00e2n s\u1ef1, Gi\u00e1m \u0111\u1ed1c nh\u00e2n s\u1ef1)<\/td>\n<td>Ph\u00e2n nh\u00f3m theo ch\u1ee9c n\u0103ng (v\u00ed d\u1ee5: Nh\u00e2n vi\u00ean h\u00e0nh ch\u00ednh nh\u00e2n s\u1ef1)<\/td>\n<td>Gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 t\u1eadp trung v\u00e0o quy\u1ec1n h\u1ea1n.<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i b\u1ecf c\u00e1c API b\u00ean ngo\u00e0i<\/td>\n<td>Bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i nh\u01b0 c\u00e1c t\u00e1c nh\u00e2n<\/td>\n<td>\u0110\u1ea3m b\u1ea3o c\u00e1c \u0111i\u1ec3m t\u00edch h\u1ee3p \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed.<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eb7t nh\u00e3n cho ch\u00ednh h\u1ec7 th\u1ed1ng nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n<\/td>\n<td>Lo\u1ea1i b\u1ecf h\u1ec7 th\u1ed1ng kh\u1ecfi danh s\u00e1ch t\u00e1c nh\u00e2n<\/td>\n<td>Ng\u0103n ch\u1eb7n logic v\u00f2ng l\u1eb7p trong s\u01a1 \u0111\u1ed3.<\/td>\n<\/tr>\n<\/table>\n<h2>\ud83d\udccf Sai l\u1ea7m 2: \u0110\u1ed9 chi ti\u1ebft v\u00e0 ph\u1ea1m vi kh\u00f4ng \u0111\u00fang<\/h2>\n<p>\u0110\u1ed9 chi ti\u1ebft \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 chi ti\u1ebft trong s\u01a1 \u0111\u1ed3. M\u1ed9t s\u01a1 \u0111\u1ed3 qu\u00e1 r\u1ed9ng l\u00e0 v\u00f4 d\u1ee5ng; m\u1ed9t s\u01a1 \u0111\u1ed3 qu\u00e1 chi ti\u1ebft th\u00ec kh\u00f3 \u0111\u1ecdc. C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng dao \u0111\u1ed9ng gi\u1eefa hai c\u1ef1c n\u00e0y.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>M\u1ed9t m\u1eb7t, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ee9a ba tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u1edbn: \u201cQu\u1ea3n l\u00fd ng\u01b0\u1eddi d\u00f9ng\u201d, \u201cX\u1eed l\u00fd \u0111\u01a1n h\u00e0ng\u201d v\u00e0 \u201cT\u1ea1o b\u00e1o c\u00e1o\u201d. Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y qu\u00e1 m\u01a1 h\u1ed3 \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n. M\u1eb7t kh\u00e1c, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 li\u1ec7t k\u00ea t\u1eebng l\u1ea7n nh\u1ea5n n\u00fat nh\u01b0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ri\u00eang bi\u1ec7t (v\u00ed d\u1ee5: \u201cNh\u1ea5n L\u01b0u\u201d, \u201cNh\u1ea5n H\u1ee7y\u201d, \u201cNh\u1ea5n G\u1eedi\u201d). \u0110i\u1ec1u n\u00e0y vi ph\u1ea1m nguy\u00ean t\u1eafc r\u1eb1ng m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t \u0111\u01a1n v\u1ecb gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c cung c\u1ea5p cho t\u00e1c nh\u00e2n.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng qu\u00e1 r\u1ed9ng d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng \u201cb\u1ed9i th\u1ef1c t\u00ednh n\u0103ng\u201d, n\u01a1i c\u00e1c \u0111\u1ed9i ph\u00e1t tri\u1ec3n cho r\u1eb1ng m\u1ecdi th\u1ee9 \u0111\u1ec1u n\u1eb1m trong ph\u1ea1m vi. C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng qu\u00e1 chi ti\u1ebft khi\u1ebfn s\u01a1 \u0111\u1ed3 tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ea3n ph\u00e1c th\u1ea3o giao di\u1ec7n, l\u00e0m r\u1ed1i m\u1eaft v\u00e0 che khu\u1ea5t m\u1ee5c ti\u00eau th\u1ef1c s\u1ef1 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>H\u01b0\u1edbng \u0111\u1ebfn c\u00e1ch ti\u1ebfp c\u1eadn \u201ch\u01b0\u1edbng \u0111\u1ebfn m\u1ee5c ti\u00eau\u201d. M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng n\u00ean m\u00f4 t\u1ea3 m\u1ed9t nhi\u1ec7m v\u1ee5 ho\u00e0n ch\u1ec9nh mang l\u1ea1i gi\u00e1 tr\u1ecb cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<ul>\n<li><strong>M\u1ed9t m\u1ee5c ti\u00eau cho m\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong>N\u1ebfu m\u1ed9t s\u01a1 \u0111\u1ed3 ch\u1ee9a \u201cT\u00ecm ki\u1ebfm\u201d, n\u00f3 n\u00ean bao g\u1ed3m to\u00e0n b\u1ed9 quy tr\u00ecnh t\u00ecm ki\u1ebfm, t\u1eeb nh\u1eadp truy v\u1ea5n \u0111\u1ebfn hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3. Kh\u00f4ng n\u00ean chia t\u00e1ch th\u00e0nh \u201cNh\u1eadp truy v\u1ea5n\u201d v\u00e0 \u201cXem k\u1ebft qu\u1ea3\u201d tr\u1eeb khi ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1eebng l\u1ea1i sau khi nh\u1eadp (\u0111i\u1ec1u n\u00e0y r\u1ea5t hi\u1ebfm).<\/li>\n<li><strong>Tr\u00e1nh c\u00e1c b\u01b0\u1edbc k\u1ef9 thu\u1eadt:<\/strong>Kh\u00f4ng v\u1ebd chi ti\u1ebft tri\u1ec3n khai k\u1ef9 thu\u1eadt nh\u01b0 \u201cX\u00e1c th\u1ef1c k\u1ebft n\u1ed1i c\u01a1 s\u1edf d\u1eef li\u1ec7u\u201d. \u0110i\u1ec1u n\u00e0y thu\u1ed9c v\u1ec1 ki\u1ebfn tr\u00fac k\u1ef9 thu\u1eadt, ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u00e0nh vi ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li><strong>S\u1eed d\u1ee5ng &lt;<include>&gt; v\u00e0 &lt;<extend>&gt; m\u1ed9t c\u00e1ch ti\u1ebft ch\u1ebf:<\/extend><\/include><\/strong>N\u1ebfu m\u1ed9t b\u01b0\u1edbc chung cho nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng (v\u00ed d\u1ee5: \u201c\u0110\u0103ng nh\u1eadp\u201d ho\u1eb7c \u201cX\u00e1c th\u1ef1c phi\u00ean l\u00e0m vi\u1ec7c\u201d), h\u00e3y s\u1eed d\u1ee5ng m\u1ed1i quan h\u1ec7 &lt;<include>&gt; . N\u1ebfu m\u1ed9t b\u01b0\u1edbc l\u00e0 t\u00f9y ch\u1ecdn (v\u00ed d\u1ee5: \u201c\u00c1p d\u1ee5ng gi\u1ea3m gi\u00e1\u201d), h\u00e3y s\u1eed d\u1ee5ng &lt;<extend>&gt;.<\/extend><\/include><\/li>\n<\/ul>\n<h2>\ud83d\udd17 Sai l\u1ea7m 3: Nh\u1ea7m l\u1eabn c\u00e1c lo\u1ea1i m\u1ed1i quan h\u1ec7<\/h2>\n<p>UML \u0111\u1ecbnh ngh\u0129a c\u00e1c m\u1ed1i quan h\u1ec7 c\u1ee5 th\u1ec3 gi\u1eefa c\u00e1c t\u00e1c nh\u00e2n v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, c\u0169ng nh\u01b0 gi\u1eefa c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u1edbi nhau. Vi\u1ec7c s\u1eed d\u1ee5ng sai c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y s\u1ebd t\u1ea1o ra c\u00e1c l\u1ed7i logic trong y\u00eau c\u1ea7u.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>Hai m\u1ed1i quan h\u1ec7 ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 <strong>Li\u00ean k\u1ebft<\/strong>, <strong>Bao g\u1ed3m<\/strong>, v\u00e0 <strong>M\u1edf r\u1ed9ng<\/strong>. C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng coi ch\u00fang thay th\u1ebf cho nhau. V\u00ed d\u1ee5: s\u1eed d\u1ee5ng m\u1ed1i quan h\u1ec7 Bao g\u1ed3m cho m\u1ed9t t\u00ednh n\u0103ng t\u00f9y ch\u1ecdn, ho\u1eb7c d\u00f9ng \u0111\u01b0\u1eddng n\u1ed1i Li\u00ean k\u1ebft khi c\u1ea7n c\u00f3 m\u1ed1i quan h\u1ec7 Bao g\u1ed3m.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>S\u1ef1 nh\u1ea7m l\u1eabn \u1edf \u0111\u00e2y d\u1eabn \u0111\u1ebfn c\u00e1c kho\u1ea3ng tr\u1ed1ng logic. N\u1ebfu m\u1ed9t nh\u00e0 ph\u00e1t tri\u1ec3n th\u1ea5y m\u1ed1i quan h\u1ec7 Bao g\u1ed3m, h\u1ecd hi\u1ec3u r\u1eb1ng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c bao g\u1ed3m l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ec3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh ho\u00e0n th\u00e0nh. N\u1ebfu h\u1ecd th\u1ea5y M\u1edf r\u1ed9ng, h\u1ecd bi\u1ebft r\u1eb1ng n\u00f3 l\u00e0 t\u00f9y ch\u1ecdn. Vi\u1ec7c tr\u1ed9n l\u1eabn ch\u00fang s\u1ebd d\u1eabn \u0111\u1ebfn l\u1ed7i x\u00e2y d\u1ef1ng ho\u1eb7c l\u1ed7i logic trong m\u00e3 ngu\u1ed3n.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>Tu\u00e2n th\u1ee7 c\u00e1c \u0111\u1ecbnh ngh\u0129a nghi\u00eam ng\u1eb7t c\u1ee7a c\u00e1c m\u1ed1i quan h\u1ec7 n\u00e0y:<\/p>\n<ul>\n<li><strong>Li\u00ean k\u1ebft:<\/strong>K\u1ebft n\u1ed1i m\u1ed9t T\u00e1c nh\u00e2n v\u1edbi m\u1ed9t Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. N\u00f3 cho th\u1ea5y t\u00e1c nh\u00e2n kh\u1edfi t\u1ea1o tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/li>\n<li><strong>Bao g\u1ed3m:<\/strong>H\u00e0nh vi b\u1eaft bu\u1ed9c. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A bao g\u1ed3m Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A kh\u00f4ng th\u1ec3 ho\u00e0n th\u00e0nh n\u1ebfu kh\u00f4ng c\u00f3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B. V\u00ed d\u1ee5: \u201cThanh to\u00e1n\u201d bao g\u1ed3m \u201cX\u00e1c th\u1ef1c thanh to\u00e1n\u201d.<\/li>\n<li><strong>M\u1edf r\u1ed9ng:<\/strong>H\u00e0nh vi t\u00f9y ch\u1ecdn. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A m\u1edf r\u1ed9ng Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B. Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng B c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng A, nh\u01b0ng A s\u1ebd b\u1ed5 sung ch\u1ee9c n\u0103ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3. V\u00ed d\u1ee5: \u201c\u0110\u1eb7t h\u00e0ng\u201d c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng b\u1edfi \u201c\u00c1p d\u1ee5ng m\u00e3 gi\u1ea3m gi\u00e1\u201d.<\/li>\n<\/ul>\n<h2>\ud83d\udce6 Sai l\u1ea7m 4: B\u1ecf qua ranh gi\u1edbi h\u1ec7 th\u1ed1ng<\/h2>\n<p>Ranh gi\u1edbi h\u1ec7 th\u1ed1ng (th\u01b0\u1eddng \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng h\u00ecnh ch\u1eef nh\u1eadt) x\u00e1c \u0111\u1ecbnh ph\u1ea7n n\u00e0o n\u1eb1m trong ph\u1ea7n m\u1ec1m v\u00e0 ph\u1ea7n n\u00e0o n\u1eb1m ngo\u00e0i. M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 v\u1ebd ranh gi\u1edbi qu\u00e1 ch\u1eb7t ho\u1eb7c qu\u00e1 r\u1ed9ng.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>M\u1ed9t s\u1ed1 nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m v\u1ebd khung quanh t\u00ednh n\u0103ng c\u1ee5 th\u1ec3 h\u1ecd \u0111ang x\u00e2y d\u1ef1ng, b\u1ecf qua c\u00e1c ph\u1ee5 thu\u1ed9c v\u1ed1n l\u00e0 m\u1ed9t ph\u1ea7n k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea3n ph\u00e1t h\u00e0nh hi\u1ec7n t\u1ea1i. M\u1ed9t s\u1ed1 kh\u00e1c v\u1ebd khung quanh to\u00e0n b\u1ed9 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00f4ng ty. S\u1ef1 m\u01a1 h\u1ed3 n\u00e0y khi\u1ebfn kh\u00f4ng r\u00f5 r\u00e0ng \u0111\u1ed9i ph\u00e1t tri\u1ec3n ch\u1ecbu tr\u00e1ch nhi\u1ec7m g\u00ec.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>Khi ranh gi\u1edbi kh\u00f4ng r\u00f5 r\u00e0ng, c\u00f4ng vi\u1ec7c t\u00edch h\u1ee3p tr\u1edf th\u00e0nh ngu\u1ed3n xung \u0111\u1ed9t. \u0110\u1ed9i frontend c\u00f3 th\u1ec3 cho r\u1eb1ng \u0111\u1ed9i backend x\u1eed l\u00fd m\u1ed9t ki\u1ec3m tra c\u1ee5 th\u1ec3, trong khi \u0111\u1ed9i backend l\u1ea1i cho r\u1eb1ng \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ee7a frontend. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c \u201c\u0111\u1ed5 l\u1ed7i\u201d cho nhau trong su\u1ed1t chu k\u1ef3 sprint.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>X\u00e1c \u0111\u1ecbnh ranh gi\u1edbi d\u1ef1a tr\u00ean <strong>Ph\u1ea1m vi ph\u00e1t h\u00e0nh<\/strong>. Khung ph\u1ea3i bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n \u0111ang \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng, s\u1eeda \u0111\u1ed5i ho\u1eb7c b\u1ea3o tr\u00ec trong chu k\u1ef3 c\u1ee5 th\u1ec3 n\u00e0y. C\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i ch\u1ec9 \u0111\u1ecdc ho\u1eb7c ho\u00e0n to\u00e0n l\u00e0 b\u00ean th\u1ee9 ba ph\u1ea3i n\u1eb1m ngo\u00e0i khung.<\/p>\n<ul>\n<li><strong>L\u1ea7n l\u1eb7p hi\u1ec7n t\u1ea1i:<\/strong>Ch\u1ec9 bao g\u1ed3m c\u00e1c t\u00ednh n\u0103ng \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh ngay b\u00e2y gi\u1edd.<\/li>\n<li><strong>C\u00f4ng vi\u1ec7c t\u01b0\u01a1ng lai:<\/strong>N\u1ebfu m\u1ed9t t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch cho qu\u00fd t\u1edbi, \u0111\u1eebng bao g\u1ed3m n\u00f3 v\u00e0o s\u01a1 \u0111\u1ed3 hi\u1ec7n t\u1ea1i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra k\u1ef3 v\u1ecdng sai l\u1ec7ch.<\/li>\n<li><strong>H\u1ec7 th\u1ed1ng c\u0169:<\/strong>N\u1ebfu h\u1ec7 th\u1ed1ng t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u0169, h\u00e3y gi\u1eef c\u01a1 s\u1edf d\u1eef li\u1ec7u b\u00ean ngo\u00e0i ranh gi\u1edbi tr\u1eeb khi b\u1ea1n \u0111ang ti\u1ebfn h\u00e0nh di d\u1eddi n\u00f3.<\/li>\n<\/ul>\n<h2>\ud83e\uddf9 Sai l\u1ea7m 5: B\u1ecf qua vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n<\/h2>\n<p>S\u01a1 \u0111\u1ed3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o trong giai \u0111o\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch r\u1ed3i b\u1ecb b\u1ecf qu\u00ean. Khi s\u1ea3n ph\u1ea9m ph\u00e1t tri\u1ec3n, s\u01a1 \u0111\u1ed3 tr\u1edf n\u00ean l\u1ed7i th\u1eddi. \u0110\u00e2y l\u00e0 m\u1ed9t thi\u1ebfu s\u00f3t nghi\u00eam tr\u1ecdng. M\u1ed9t s\u01a1 \u0111\u1ed3 kh\u00f4ng c\u00f2n ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng hi\u1ec7n t\u1ea1i c\u00f2n t\u1ec7 h\u01a1n c\u1ea3 kh\u00f4ng c\u00f3 s\u01a1 \u0111\u1ed3, v\u00ec n\u00f3 \u0111ang g\u00e2y hi\u1ec3u l\u1ea7m t\u00edch c\u1ef1c.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m t\u1eadp trung m\u1ea1nh v\u00e0o vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 ban \u0111\u1ea7u nh\u01b0ng l\u1ea1i kh\u00f4ng thi\u1ebft l\u1eadp quy tr\u00ecnh c\u1eadp nh\u1eadt. Khi th\u00eam m\u1ed9t t\u00ednh n\u0103ng m\u1edbi, s\u01a1 \u0111\u1ed3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u1ee7 c\u00f4ng trong c\u00f4ng c\u1ee5, nh\u01b0ng c\u00e1c thay \u0111\u1ed5i kh\u00f4ng \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o cho \u0111\u1ed9i ng\u0169. S\u01a1 \u0111\u1ed3 tr\u1edf th\u00e0nh m\u1ed9t t\u00e0i s\u1ea3n &#8216;ma qu\u00e1i&#8217;.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>Vi\u1ec7c gi\u1edbi thi\u1ec7u th\u00e0nh vi\u00ean m\u1edbi v\u00e0o \u0111\u1ed9i ng\u0169 tr\u1edf n\u00ean kh\u00f3 kh\u0103n. H\u1ecd nghi\u00ean c\u1ee9u t\u00e0i li\u1ec7u v\u00e0 th\u1ea5y c\u00e1c t\u00ednh n\u0103ng \u0111\u00e3 kh\u00f4ng c\u00f2n t\u1ed3n t\u1ea1i. N\u1ee3 k\u1ef9 thu\u1eadt gia t\u0103ng v\u00ec c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u1eabn d\u1ef1a v\u00e0o m\u00f4 h\u00ecnh t\u01b0 duy c\u0169 thay v\u00ec th\u1ef1c t\u1ebf hi\u1ec7n t\u1ea1i.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>T\u00edch h\u1ee3p vi\u1ec7c b\u1ea3o tr\u00ec s\u01a1 \u0111\u1ed3 v\u00e0o quy tr\u00ecnh l\u00e0m vi\u1ec7c ti\u00eau chu\u1ea9n.<\/p>\n<ul>\n<li><strong>Li\u00ean k\u1ebft \u0111\u1ebfn c\u00e1c c\u00e2u chuy\u1ec7n ng\u01b0\u1eddi d\u00f9ng:<\/strong>N\u1ebfu s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u00f4ng vi\u1ec7c, h\u00e3y li\u00ean k\u1ebft phi\u00ean b\u1ea3n s\u01a1 \u0111\u1ed3 v\u1edbi c\u00e1c b\u1ea3n t\u01b0\u1eddng thu\u1eadt ho\u1eb7c c\u00e2u chuy\u1ec7n c\u1ee5 th\u1ec3.<\/li>\n<li><strong>Xem x\u00e9t trong c\u00e1c bu\u1ed5i t\u1ed5ng k\u1ebft:<\/strong>Thi\u1ebft l\u1eadp vi\u1ec7c c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 th\u00e0nh m\u1ee5c ti\u00eau chu\u1ea9n trong c\u00e1c bu\u1ed5i t\u1ed5ng k\u1ebft sprint.<\/li>\n<li><strong>Ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n:<\/strong>Xem file s\u01a1 \u0111\u1ed3 nh\u01b0 m\u00e3 ngu\u1ed3n. Duy tr\u00ec l\u1ecbch s\u1eed phi\u00ean b\u1ea3n \u0111\u1ec3 c\u00f3 th\u1ec3 ho\u00e0n nguy\u00ean n\u1ebfu m\u1ed9t thay \u0111\u1ed5i l\u00e0m h\u1ecfng logic.<\/li>\n<\/ul>\n<h2>\ud83d\udd0d Sai l\u1ea7m 6: B\u1ecf qua c\u00e1c y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng<\/h2>\n<p>S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu th\u1ec3 hi\u1ec7n h\u00e0nh vi ch\u1ee9c n\u0103ng. Tuy nhi\u00ean, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng b\u1ecf qua vi\u1ec7c ghi ch\u00fa c\u00e1c r\u00e0ng bu\u1ed9c quan tr\u1ecdng trong s\u01a1 \u0111\u1ed3 ho\u1eb7c t\u00e0i li\u1ec7u li\u00ean quan.<\/p>\n<h3>V\u1ea5n \u0111\u1ec1<\/h3>\n<p>M\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1ebd \u0111\u00fang, nh\u01b0ng l\u1ea1i kh\u00f4ng n\u00eau r\u00f5 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u n\u0103ng. V\u00ed d\u1ee5, &#8216;T\u00ecm ki\u1ebfm c\u01a1 s\u1edf d\u1eef li\u1ec7u&#8217; l\u00e0 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng h\u1ee3p l\u1ec7. Nh\u01b0ng n\u00f3 c\u00f3 c\u1ea7n tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 trong d\u01b0\u1edbi 200ms kh\u00f4ng? C\u00f3 c\u1ea7n x\u1eed l\u00fd \u0111\u01b0\u1ee3c 10.000 ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3ng th\u1eddi kh\u00f4ng? Nh\u1eefng \u0111i\u1ec1u n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n qua h\u00ecnh d\u1ea1ng tr\u1ef1c quan c\u1ee7a s\u01a1 \u0111\u1ed3.<\/p>\n<h3>H\u1eadu qu\u1ea3<\/h3>\n<p>C\u00e1c \u0111i\u1ec3m ngh\u1ebdn hi\u1ec7u n\u0103ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n mu\u1ed9n trong giai \u0111o\u1ea1n ki\u1ec3m th\u1eed. H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang v\u1ec1 m\u1eb7t logic, nh\u01b0ng l\u1ea1i th\u1ea5t b\u1ea1i khi ch\u1ecbu t\u1ea3i v\u00ec c\u00e1c y\u00eau c\u1ea7u phi ch\u1ee9c n\u0103ng ch\u01b0a \u0111\u01b0\u1ee3c l\u00e0m n\u1ed5i b\u1eadt trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p<\/h3>\n<p>S\u1eed d\u1ee5ng ghi ch\u00fa ho\u1eb7c c\u00e1c kh\u1ed1i t\u00e0i li\u1ec7u ri\u00eang bi\u1ec7t li\u00ean k\u1ebft v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 \u0111\u1ec3 l\u00e0m n\u1ed5i b\u1eadt c\u00e1c r\u00e0ng bu\u1ed9c.<\/p>\n<ul>\n<li><strong>Ghi ch\u00fa hi\u1ec7u n\u0103ng:<\/strong>Th\u00eam c\u00e1c ghi ch\u00fa v\u0103n b\u1ea3n nh\u01b0 \u201c<em>Th\u1eddi gian ph\u1ea3n h\u1ed3i &lt; 1 gi\u00e2y<\/em>&#8221; b\u00ean c\u1ea1nh c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng cao.<\/li>\n<li><strong>C\u00e1c r\u00e0ng bu\u1ed9c b\u1ea3o m\u1eadt:<\/strong>X\u00e1c \u0111\u1ecbnh xem m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 y\u00eau c\u1ea7u x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 ho\u1eb7c m\u00e3 h\u00f3a d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 hay kh\u00f4ng.<\/li>\n<li><strong>T\u00ednh s\u1eb5n c\u00f3:<\/strong>Ghi ch\u00fa n\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ea3i s\u1eb5n s\u00e0ng 99,9% th\u1eddi gian.<\/li>\n<\/ul>\n<h2>\u2705 Danh s\u00e1ch ki\u1ec3m tra c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t d\u00e0nh cho c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m<\/h2>\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c s\u01a1 \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee7a b\u1ea1n hi\u1ec7u qu\u1ea3, h\u00e3y xem x\u00e9t l\u1ea1i c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n d\u1ef1a tr\u00ean danh s\u00e1ch ki\u1ec3m tra n\u00e0y tr\u01b0\u1edbc khi tr\u00ecnh b\u00e0y cho c\u00e1c b\u00ean li\u00ean quan v\u00e0 c\u00e1c \u0111\u1ed9i k\u1ef9 thu\u1eadt.<\/p>\n<ul>\n<li><strong>\u2705 X\u00e1c minh Ng\u01b0\u1eddi tham gia:<\/strong>Ch\u00fang ta \u0111\u00e3 x\u00e1c \u0111\u1ecbnh t\u1ea5t c\u1ea3 c\u00e1c ng\u01b0\u1eddi tham gia con ng\u01b0\u1eddi v\u00e0 h\u1ec7 th\u1ed1ng ch\u01b0a? C\u00e1c vai tr\u00f2 \u0111\u00e3 \u0111\u01b0\u1ee3c tr\u1eebu t\u01b0\u1ee3ng h\u00f3a \u0111\u00fang c\u00e1ch ch\u01b0a?<\/li>\n<li><strong>\u2705 Ki\u1ec3m tra ranh gi\u1edbi:<\/strong>Ranh gi\u1edbi h\u1ec7 th\u1ed1ng c\u00f3 r\u00f5 r\u00e0ng kh\u00f4ng? C\u00e1c ph\u1ee5 thu\u1ed9c b\u00ean ngo\u00e0i c\u00f3 n\u1eb1m ngo\u00e0i khung kh\u00f4ng?<\/li>\n<li><strong>\u2705 H\u01b0\u1edbng \u0111\u1ebfn m\u1ee5c ti\u00eau:<\/strong>M\u1ed7i h\u00ecnh elip c\u00f3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t m\u1ee5c ti\u00eau ng\u01b0\u1eddi d\u00f9ng ho\u00e0n ch\u1ec9nh, ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u1ec9 m\u1ed9t h\u00e0nh \u0111\u1ed9ng \u0111\u01a1n l\u1ebb kh\u00f4ng?<\/li>\n<li><strong>\u2705 \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u1ed1i quan h\u1ec7:<\/strong>C\u00e1c m\u1ed1i quan h\u1ec7 &lt;<include>&gt; v\u00e0 &lt;<extend>&gt; \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch d\u1ef1a tr\u00ean logic b\u1eaft bu\u1ed9c so v\u1edbi t\u00f9y ch\u1ecdn?<\/extend><\/include><\/li>\n<li><strong>\u2705 T\u00ednh nh\u1ea5t qu\u00e1n:<\/strong>C\u00e1c ng\u01b0\u1eddi tham gia v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi ng\u00f4n ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong T\u00e0i li\u1ec7u Y\u00eau c\u1ea7u S\u1ea3n ph\u1ea9m (PRD) kh\u00f4ng?<\/li>\n<li><strong>\u2705 Kh\u1ea3 n\u0103ng truy c\u1eadp:<\/strong>S\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecdc d\u1ec5 d\u00e0ng tr\u00ean \u0111\u1ed9 ph\u00e2n gi\u1ea3i m\u00e0n h\u00ecnh ti\u00eau chu\u1ea9n m\u00e0 kh\u00f4ng c\u1ea7n cu\u1ed9n qu\u00e1 nhi\u1ec1u kh\u00f4ng?<\/li>\n<li><strong>\u2705 L\u1ecbch c\u1eadp nh\u1eadt:<\/strong>C\u00f3 k\u1ebf ho\u1ea1ch c\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3 n\u00e0y khi s\u1ea3n ph\u1ea9m thay \u0111\u1ed5i kh\u00f4ng?<\/li>\n<\/ul>\n<h2>\ud83d\udd04 \u0110\u1ed3ng b\u1ed9 h\u00f3a s\u01a1 \u0111\u1ed3 v\u1edbi c\u00e1c y\u00eau c\u1ea7u<\/h2>\n<p>M\u1ed9t trong nh\u1eefng sai l\u1ea7m tinh vi nh\u1ea5t l\u00e0 t\u1ea1o ra m\u1ed9t s\u01a1 \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c vi\u1ebft ra. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra s\u1ef1 t\u00e1ch bi\u1ec7t gi\u1eefa &#8216;\u0111i\u1ec1u g\u00ec&#8217; (y\u00eau c\u1ea7u) v\u00e0 &#8216;c\u00e1ch th\u1ee9c&#8217; (h\u00ecnh \u1ea3nh minh h\u1ecda). C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng tr\u00ean s\u01a1 \u0111\u1ed3 \u0111\u1ec1u c\u00f3 m\u1ee5c t\u01b0\u01a1ng \u1ee9ng trong t\u00e0i li\u1ec7u y\u00eau c\u1ea7u.<\/p>\n<p>N\u1ebfu m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u1ebd nh\u01b0ng kh\u00f4ng c\u00f3 v\u0103n b\u1ea3n y\u00eau c\u1ea7u, \u0111\u00f3 l\u00e0 r\u1ee7i ro m\u1edf r\u1ed9ng ph\u1ea1m vi. N\u1ebfu m\u1ed9t y\u00eau c\u1ea7u t\u1ed3n t\u1ea1i nh\u01b0ng kh\u00f4ng c\u00f3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, \u0111\u00f3 l\u00e0 m\u1ed9t t\u00ednh n\u0103ng ch\u01b0a \u0111\u01b0\u1ee3c ghi ch\u00e9p. S\u1ef1 \u0111\u1ed3ng b\u1ed9 n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c. Khi m\u1ed9t l\u1ed7i \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o, c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 truy v\u1ebft l\u1ea1i t\u01b0\u01a1ng t\u00e1c c\u1ee5 th\u1ec3 v\u1edbi m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Khi m\u1ed9t t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 x\u00e1c minh xem t\u00ednh n\u0103ng \u0111\u00f3 c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u1ea5u tr\u00fac s\u01a1 \u0111\u1ed3 hi\u1ec7n t\u1ea1i hay kh\u00f4ng.<\/p>\n<p>\u0110\u1ec3 duy tr\u00ec s\u1ef1 \u0111\u1ed3ng b\u1ed9 n\u00e0y:<\/p>\n<ul>\n<li><strong>Ma tr\u1eadn kh\u1ea3 n\u0103ng truy xu\u1ea5t:<\/strong>T\u1ea1o m\u1ed9t b\u1ea3ng \u00e1nh x\u1ea1 \u0111\u01a1n gi\u1ea3n li\u00ean k\u1ebft c\u00e1c ID Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u1edbi c\u00e1c ID Y\u00eau c\u1ea7u.<\/li>\n<li><strong>C\u00e1c bu\u1ed5i xem x\u00e9t:<\/strong>\u0110i qua s\u01a1 \u0111\u1ed3 c\u00f9ng K\u1ef9 s\u01b0 tr\u01b0\u1edfng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh kh\u1ea3 thi v\u1ec1 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p v\u1edbi ph\u1ea1m vi tr\u1ef1c quan.<\/li>\n<li><strong>T\u00e1i c\u1ea5u tr\u00fac th\u01b0\u1eddng xuy\u00ean:<\/strong>N\u1ebfu y\u00eau c\u1ea7u thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3, s\u01a1 \u0111\u1ed3 ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt ngay l\u1eadp t\u1ee9c. \u0110\u1eebng \u0111\u1ec3 ch\u00fang ph\u00e2n k\u1ef3.<\/li>\n<\/ul>\n<h2>\ud83d\udee0 Ti\u1ebfn b\u01b0\u1edbc v\u1edbi s\u1ef1 r\u00f5 r\u00e0ng<\/h2>\n<p>Vi\u1ec7c t\u1ea1o s\u01a1 \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ebd nh\u1eefng h\u00ecnh d\u1ea1ng \u0111\u1eb9p m\u1eaft. \u0110\u00f3 l\u00e0 v\u1ec1 vi\u1ec7c x\u00e1c \u0111\u1ecbnh h\u1ee3p \u0111\u1ed3ng gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 ph\u1ea7n m\u1ec1m. Khi c\u00e1c Qu\u1ea3n l\u00fd S\u1ea3n ph\u1ea9m d\u00e0nh th\u1eddi gian \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y \u0111\u00fang \u0111\u1eafn, h\u1ecd s\u1ebd gi\u1ea3m thi\u1ec3u s\u1ef1 m\u01a1 h\u1ed3, l\u00e0m cho qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n tr\u01a1n tru h\u01a1n v\u00e0 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng.<\/p>\n<p>B\u1eb1ng c\u00e1ch tr\u00e1nh nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u01b0 nh\u1ea7m l\u1eabn vai tr\u00f2 ng\u01b0\u1eddi d\u00f9ng, \u0111\u1ed9 chi ti\u1ebft kh\u00f4ng ch\u00ednh x\u00e1c v\u00e0 l\u1ed7i quan h\u1ec7, b\u1ea1n s\u1ebd x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho l\u1ed9 tr\u00ecnh s\u1ea3n ph\u1ea9m c\u1ee7a m\u00ecnh. H\u00e3y nh\u1edb r\u1eb1ng nh\u1eefng s\u01a1 \u0111\u1ed3 n\u00e0y l\u00e0 t\u00e0i li\u1ec7u s\u1ed1ng \u0111\u1ed9ng. Ch\u00fang c\u1ea7n ph\u00e1t tri\u1ec3n c\u00f9ng s\u1ea3n ph\u1ea9m. H\u00e3y \u0111\u1ed1i x\u1eed v\u1edbi ch\u00fang b\u1eb1ng s\u1ef1 t\u00f4n tr\u1ecdng nh\u01b0 b\u1ea1n d\u00e0nh cho m\u00e3 ngu\u1ed3n hay chi\u1ebfn l\u01b0\u1ee3c kinh doanh c\u1ee7a m\u00ecnh.<\/p>\n<p>\u00c1p d\u1ee5ng c\u00e1c s\u1eeda \u0111\u1ed5i n\u00e0y m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. Ki\u1ec3m tra l\u1ea1i c\u00e1c s\u01a1 \u0111\u1ed3 hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n d\u1ef1a tr\u00ean nh\u1eefng sai l\u1ea7m \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea \u1edf tr\u00ean. N\u1ebfu b\u1ea1n ph\u00e1t hi\u1ec7n l\u1ed7i, h\u00e3y d\u00e0nh th\u1eddi gian s\u1eeda ch\u00fang ngay b\u00e2y gi\u1edd. Chi ph\u00ed s\u1eeda m\u1ed9t s\u01a1 \u0111\u1ed3 ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n nh\u1ecf chi ph\u00ed s\u1eeda m\u1ed9t t\u00ednh n\u0103ng \u0111\u00e3 tri\u1ec3n khai nh\u01b0ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean y\u00eau c\u1ea7u b\u1ecb hi\u1ec3u nh\u1ea7m.<\/p>\n<p>S\u1ef1 r\u00f5 r\u00e0ng l\u00e0 l\u1ee3i th\u1ebf c\u1ea1nh tranh. \u0110\u1ea3m b\u1ea3o \u0111\u1ed9i ng\u0169 c\u1ee7a b\u1ea1n hi\u1ec3u r\u00f5 ch\u00ednh x\u00e1c \u0111i\u1ec1u h\u1ecd \u0111ang x\u00e2y d\u1ef1ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 ch\u00ednh x\u00e1c, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u1ec3 trang tr\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ea7u n\u1ed1i then ch\u1ed1t gi\u1eefa chi\u1ebfn l\u01b0\u1ee3c kinh doanh v\u00e0 th\u1ef1c thi k\u1ef9 thu\u1eadt. M\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd nh\u1ea5t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y l\u00e0 s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng. Nh\u1eefng bi\u1ec3u \u0111\u1ed3 tr\u1ef1c quan n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1ch ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng, n\u00eau r\u00f5 ranh gi\u1edbi, c\u00e1c t\u00e1c nh\u00e2n v\u00e0 h\u00e0nh vi li\u00ean quan. Tuy nhi\u00ean, d\u00f9 c\u00f3 t\u1ea7m quan tr\u1ecdng l\u1edbn, nhi\u1ec1u nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m v\u1eabn t\u1ea1o ra c\u00e1c s\u01a1 \u0111\u1ed3 g\u00e2y hi\u1ec3u l\u1ea7m, qu\u00e1 ph\u1ee9c t\u1ea1p ho\u1eb7c kh\u00f4ng ch\u00ednh x\u00e1c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt. Khi s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng th\u1ea5t b\u1ea1i, h\u1ec7 qu\u1ea3 lan r\u1ed9ng \u0111\u1ebfn kh\u00e2u ph\u00e1t tri\u1ec3n, ki\u1ec3m th\u1eed v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 tr\u1ea3i nghi\u1ec7m c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i. H\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00e1m ph\u00e1 nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y. Ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n x\u1ea3y ra, t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n, v\u00e0 cung c\u1ea5p c\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3 \u0111\u1ec3 kh\u1eafc ph\u1ee5c. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 nh\u1eefng chi ti\u1ebft tinh t\u1ebf trong m\u00f4 h\u00ecnh h\u00f3a UML, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea7m nh\u00ecn c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ea1t m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 r\u00f5 r\u00e0ng. \ud83e\uddd0 T\u1ea1i sao s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi chi\u1ebfn l\u01b0\u1ee3c s\u1ea3n ph\u1ea9m S\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t b\u00e0i t\u1eadp v\u1ebd. \u0110\u00f3 l\u00e0 c\u00f4ng c\u1ee5 m\u00f4 t\u1ea3 ch\u1ee9c n\u0103ng. N\u00f3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi: \u201cH\u1ec7 th\u1ed1ng l\u00e0m g\u00ec cho ng\u01b0\u1eddi d\u00f9ng?\u201d Kh\u00e1c v\u1edbi b\u1ea3n ph\u00e1c th\u1ea3o b\u1ed1 c\u1ee5c (wireframes), hay s\u01a1 \u0111\u1ed3 lu\u1ed3ng logic (flowcharts), s\u01a1 \u0111\u1ed3 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng t\u1eadp trung v\u00e0ot\u01b0\u01a1ng t\u00e1c. Ch\u00fang x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1ee5c ti\u00eau ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00e0 c\u00e1c kh\u1ea3 n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ed7 tr\u1ee3 nh\u1eefng m\u1ee5c ti\u00eau \u0111\u00f3. Khi c\u00e1c s\u01a1 \u0111\u1ed3 n\u00e0y b\u1ecb l\u1ed7i, s\u1ebd n\u1ea3y sinh m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1: M\u1edf r\u1ed9ng ph\u1ea1m vi kh\u00f4ng ki\u1ec3m so\u00e1t:C\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 tri\u1ec3n khai nh\u1eefng t\u00ednh n\u0103ng ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng, v\u00ec s\u01a1 \u0111\u1ed3 \u0111\u00e3 ng\u1ee5 \u00fd ph\u1ea1m vi r\u1ed9ng h\u01a1n. Kho\u1ea3ng tr\u1ed1ng ki\u1ec3m th\u1eed:\u0110\u1ed9i QA c\u00f3 th\u1ec3 b\u1ecf s\u00f3t c\u00e1c \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng n\u1ebfu c\u00e1c t\u01b0\u01a1ng t\u00e1c kh\u00f4ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. S\u1ef1 \u0111\u1ed5 v\u1ee1 trong giao ti\u1ebfp:C\u00e1c b\u00ean li\u00ean quan c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh nh\u1eefng m\u00f4 h\u00ecnh t\u01b0 duy kh\u00e1c nhau v\u1ec1 s\u1ea3n ph\u1ea9m d\u1ef1a tr\u00ean h\u00ecnh \u1ea3nh m\u01a1 h\u1ed3. Vi\u1ec7c kh\u1eafc ph\u1ee5c nh\u1eefng l\u1ed7i n\u00e0y s\u1edbm s\u1ebd ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 ngu\u1ed3n l\u1ef1c v\u1ec1 sau. H\u00e3y c\u00f9ng \u0111i s\u00e2u v\u00e0o nh\u1eefng l\u0129nh v\u1ef1c c\u1ee5 th\u1ec3 m\u00e0 c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng g\u1eb7p kh\u00f3 kh\u0103n. \ud83d\udc65 Sai l\u1ea7m 1: X\u00e1c \u0111\u1ecbnh sai t\u00e1c nh\u00e2n T\u00e1c nh\u00e2n \u0111\u1ea1i di\u1ec7n cho m\u1ed9t th\u1ef1c th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m g\u00e2y nh\u1ea7m l\u1eabn \u0111\u1ea7u ti\u00ean. M\u1ed9t l\u1ed7i ph\u1ed5 bi\u1ebfn l\u00e0 nh\u1ea7m l\u1eabn gi\u1eefa c\u00e1c vai tr\u00f2 ng\u01b0\u1eddi d\u00f9ng c\u1ee5 th\u1ec3 v\u1edbi ch\u00ednh h\u1ec7 th\u1ed1ng, ho\u1eb7c kh\u00f4ng ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c gi\u1eefa c\u00e1c th\u1ef1c th\u1ec3 n\u1ed9i b\u1ed9 v\u00e0 b\u00ean ngo\u00e0i. V\u1ea5n \u0111\u1ec1 C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng li\u1ec7t k\u00ea m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi ph\u1ea7n m\u1ec1m nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n. V\u00ed d\u1ee5, li\u1ec7t k\u00ea \u201cQu\u1ea3n tr\u1ecb vi\u00ean\u201d, \u201cQu\u1ea3n l\u00fd\u201d, \u201cGi\u00e1m s\u00e1t vi\u00ean\u201d v\u00e0 \u201cNg\u01b0\u1eddi d\u00f9ng\u201d khi t\u1ea5t c\u1ea3 \u0111\u1ec1u th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c gi\u1ed1ng nhau trong h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra ti\u1ebfng \u1ed3n. M\u1eb7t kh\u00e1c, h\u1ecd qu\u00ean bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i. N\u1ebfu \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn c\u1ed5ng thanh to\u00e1n b\u00ean th\u1ee9 ba, c\u1ed5ng \u0111\u00f3 ch\u00ednh l\u00e0 m\u1ed9t t\u00e1c nh\u00e2n, d\u00f9 n\u00f3 l\u00e0 ph\u1ea7n m\u1ec1m. H\u1eadu qu\u1ea3 Khi c\u00e1c t\u00e1c nh\u00e2n b\u1ecb x\u00e1c \u0111\u1ecbnh sai, c\u00e1c y\u00eau c\u1ea7u ph\u00e1t sinh s\u1ebd tr\u1edf n\u00ean h\u1ed7n lo\u1ea1n. \u0110\u1ed9i ph\u00e1t tri\u1ec3n kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c m\u1ee9c \u0111\u1ed9 quy\u1ec1n h\u1ea1n. C\u00e1c y\u00eau c\u1ea7u b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 b\u1ecb b\u1ecf qua n\u1ebfu kh\u00f4ng ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa t\u00e1c nh\u00e2n \u201cQu\u1ea3n tr\u1ecb vi\u00ean\u201d v\u00e0 \u201cNg\u01b0\u1eddi d\u00f9ng\u201d. Gi\u1ea3i ph\u00e1p \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, h\u00e3y \u00e1p d\u1ee5ng c\u00e1c ti\u00eau ch\u00ed sau khi x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e1c nh\u00e2n: T\u01b0\u01a1ng t\u00e1c b\u00ean ngo\u00e0i:Li\u1ec7u th\u1ef1c th\u1ec3 \u0111\u00f3 c\u00f3 kh\u1edfi t\u1ea1o ho\u1eb7c nh\u1eadn d\u1eef li\u1ec7u t\u1eeb ranh gi\u1edbi h\u1ec7 th\u1ed1ng kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec \u0111\u00f3 l\u00e0 m\u1ed9t t\u00e1c nh\u00e2n. Tr\u1eebu t\u01b0\u1ee3ng h\u00f3a vai tr\u00f2:Nh\u00f3m ng\u01b0\u1eddi d\u00f9ng theo h\u00e0nh vi. N\u1ebfu \u201cQu\u1ea3n l\u00fd\u201d v\u00e0 \u201cGi\u00e1m s\u00e1t vi\u00ean\u201d ch\u1ec9 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00ea duy\u1ec7t y\u00eau c\u1ea7u, th\u00ec th\u01b0\u1eddng c\u00f3 th\u1ec3 gom chung d\u01b0\u1edbi m\u1ed9t t\u00e1c nh\u00e2n \u201cNg\u01b0\u1eddi ph\u00ea duy\u1ec7t\u201d n\u1ebfu quy\u1ec1n k\u1ef9 thu\u1eadt c\u1ee7a h\u1ecd gi\u1ed1ng nhau. Bao g\u1ed3m h\u1ec7 th\u1ed1ng:Kh\u00f4ng gi\u1edbi h\u1ea1n c\u00e1c t\u00e1c nh\u00e2n ch\u1ec9 \u1edf con ng\u01b0\u1eddi. C\u00e1c c\u01a1 s\u1edf d\u1eef li\u1ec7u, API b\u00ean ngo\u00e0i v\u00e0 thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng c\u1ea7n \u0111\u01b0\u1ee3c bao g\u1ed3m n\u1ebfu ch\u00fang k\u00edch ho\u1ea1t m\u1ed9t ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng. B\u1ea3ng so s\u00e1nh: X\u00e1c \u0111\u1ecbnh t\u00e1c nh\u00e2n C\u00e1ch ti\u1ebfp c\u1eadn sai l\u1ea7m C\u00e1ch ti\u1ebfp c\u1eadn \u0111\u00fang \u0111\u1eafn T\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng Li\u1ec7t k\u00ea t\u1eebng ch\u1ee9c danh c\u00f4ng vi\u1ec7c (v\u00ed d\u1ee5: Qu\u1ea3n l\u00fd nh\u00e2n s\u1ef1, Gi\u00e1m \u0111\u1ed1c nh\u00e2n s\u1ef1) Ph\u00e2n nh\u00f3m theo ch\u1ee9c n\u0103ng (v\u00ed d\u1ee5: Nh\u00e2n vi\u00ean h\u00e0nh ch\u00ednh nh\u00e2n s\u1ef1) Gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 t\u1eadp trung v\u00e0o quy\u1ec1n h\u1ea1n. Lo\u1ea1i b\u1ecf c\u00e1c API b\u00ean ngo\u00e0i Bao g\u1ed3m c\u00e1c h\u1ec7 th\u1ed1ng b\u00ean ngo\u00e0i nh\u01b0 c\u00e1c t\u00e1c nh\u00e2n \u0110\u1ea3m b\u1ea3o c\u00e1c \u0111i\u1ec3m t\u00edch h\u1ee3p \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed. \u0110\u1eb7t nh\u00e3n cho ch\u00ednh h\u1ec7 th\u1ed1ng nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n Lo\u1ea1i b\u1ecf h\u1ec7 th\u1ed1ng kh\u1ecfi danh s\u00e1ch t\u00e1c nh\u00e2n Ng\u0103n ch\u1eb7n logic v\u00f2ng l\u1eb7p trong s\u01a1 \u0111\u1ed3. \ud83d\udccf Sai l\u1ea7m 2: \u0110\u1ed9 chi ti\u1ebft v\u00e0 ph\u1ea1m vi kh\u00f4ng \u0111\u00fang \u0110\u1ed9 chi ti\u1ebft \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 chi ti\u1ebft trong s\u01a1 \u0111\u1ed3. M\u1ed9t s\u01a1 \u0111\u1ed3 qu\u00e1 r\u1ed9ng l\u00e0 v\u00f4 d\u1ee5ng; m\u1ed9t s\u01a1 \u0111\u1ed3 qu\u00e1 chi ti\u1ebft th\u00ec kh\u00f3 \u0111\u1ecdc. C\u00e1c nh\u00e0 qu\u1ea3n l\u00fd s\u1ea3n ph\u1ea9m th\u01b0\u1eddng dao \u0111\u1ed9ng gi\u1eefa hai c\u1ef1c n\u00e0y. V\u1ea5n \u0111\u1ec1 M\u1ed9t m\u1eb7t, s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ee9a ba tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u1edbn:<\/p>\n","protected":false},"author":1,"featured_media":4315,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[77,87],"class_list":["post-4314","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-use-case-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn trong s\u01a1 \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c cho c\u00e1c Qu\u1ea3n l\u00fd S\u1ea3n ph\u1ea9m<\/title>\n<meta name=\"description\" content=\"H\u1ecdc v\u1ec1 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t trong s\u01a1 \u0111\u1ed3 Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng d\u00e0nh cho c\u00e1c Qu\u1ea3n l\u00fd S\u1ea3n ph\u1ea9m. 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