{"id":89639,"date":"2025-07-21T09:43:07","date_gmt":"2025-07-21T02:43:07","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=89639"},"modified":"2025-07-21T09:47:26","modified_gmt":"2025-07-21T02:47:26","slug":"ky-nang-giai-quyet-van-de","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/","title":{"rendered":"K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt: 7 b\u01b0\u1edbc Developer c\u1ea7n n\u1eafm"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/#Ky_nang_giai_quyet_van_de_quan_trong_voi_Developer_trong_nganh_IT_nhu_the_nao\" >K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng v\u1edbi Developer trong ng\u00e0nh IT nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/#7_buoc_giai_quyet_van_de_ky_thuat_ma_lap_trinh_vien_can_nam_vung\" >7 b\u01b0\u1edbc gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n n\u1eafm v\u1eefng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/#Ky_nang_bo_tro_can_thiet_de_giai_quyet_van_de_hieu_qua\" >K\u1ef9 n\u0103ng b\u1ed5 tr\u1ee3 c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 hi\u1ec7u qu\u1ea3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/#Cac_cau_hoi_thuong_gap_ve_ky_nang_giai_quyet_van_de\" >C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/#Tong_ket\" >T\u1ed5ng k\u1ebft<\/a><\/li><\/ul><\/nav><\/div>\n\n<p><strong><em><span>Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u00e0 qu\u00e1 tr\u00ecnh x\u00e1c \u0111\u1ecbnh r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a v\u1ea5n \u0111\u1ec1, ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n, \u0111\u1ec1 xu\u1ea5t v\u00e0 th\u1ef1c thi gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u. Trong l\u0129nh v\u1ef1c l\u1eadp tr\u00ecnh, k\u1ef9 n\u0103ng n\u00e0y gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean x\u1eed l\u00fd l\u1ed7i, t\u1ed1i \u01b0u h\u1ec7 th\u1ed1ng ho\u1eb7c x\u00e2y d\u1ef1ng t\u00ednh n\u0103ng m\u1edbi nhanh ch\u00f3ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u 7 b\u01b0\u1edbc gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt m\u00e0 b\u1ea5t k\u1ef3 l\u1eadp tr\u00ecnh vi\u00ean n\u00e0o c\u0169ng n\u00ean n\u1eafm v\u1eefng \u0111\u1ec3 c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/span>, t\u1eeb \u0111\u00f3 l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n v\u1eefng h\u01a1n.<\/em><\/strong><\/p>\n\n\n\n<p>\u0110\u1ecdc b\u00e0i sau \u0111\u1ec3 hi\u1ec3u:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea7m quan tr\u1ecdng c\u1ee7a k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/li>\n\n\n\n<li>7 b\u01b0\u1edbc gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt hi\u1ec7u qu\u1ea3<\/li>\n\n\n\n<li>K\u1ef9 n\u0103ng b\u1ed5 tr\u1ee3&nbsp; gi\u00fap c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-k\u1ef9-nang-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1-quan-tr\u1ecdng-v\u1edbi-developer-trong-nganh-it-nh\u01b0-th\u1ebf-nao\"><span class=\"ez-toc-section\" id=\"Ky_nang_giai_quyet_van_de_quan_trong_voi_Developer_trong_nganh_IT_nhu_the_nao\"><\/span>K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng v\u1edbi Developer trong ng\u00e0nh IT nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00f4ng vi\u1ec7c c\u1ee7a l\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf vi\u1ec7c vi\u1ebft code v\u00e0 n\u1eafm v\u1eefng c\u00fa ph\u00e1p, m\u00e0 ph\u1ea7n l\u1edbn th\u1eddi gian s\u1ebd d\u00e0nh cho vi\u1ec7c ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng, s\u1eeda l\u1ed7i, \u0111\u1ecdc hi\u1ec3u m\u00e3 c\u0169 v\u00e0 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p s\u00e1ng t\u1ea1o.<\/p>\n\n\n\n<p>Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u00ec th\u1ebf kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng chuy\u00ean m\u00f4n, m\u00e0 c\u00f2n l\u00e0 m\u1ed9t t\u01b0 duy c\u1ea7n thi\u1ebft. M\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean th\u00e0nh th\u1ea1o k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 s\u1ebd d\u1ec5 d\u00e0ng:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e2ng cao s\u1ef1 t\u1ef1 tin nh\u1edd kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch v\u00e0 t\u01b0 duy ph\u1ea3n bi\u1ec7n t\u1ed1t.<\/li>\n\n\n\n<li>X\u1eed l\u00fd th\u00e1ch th\u1ee9c m\u1edbi nhanh ch\u00f3ng v\u00e0 s\u00e1ng t\u1ea1o;<\/li>\n\n\n\n<li>Th\u00edch \u1ee9ng t\u1ed1t v\u1edbi m\u00f4i tr\u01b0\u1eddng, c\u00f4ng ngh\u1ec7 v\u00e0 c\u00f4ng c\u1ee5 kh\u00e1c nhau;<\/li>\n\n\n\n<li>Gi\u1ea3m th\u1eddi gian th\u1eed nghi\u1ec7m gi\u00fap ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean, t\u0103ng t\u1ed1c ti\u1ebfn \u0111\u1ed9 d\u1ef1 \u00e1n;<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u00e1p d\u1ee5ng k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u00e0 t\u00ednh n\u0103ng <a href=\"https:\/\/blog.google\/products\/search\/how-google-autocomplete-works-search\/\" target=\"_blank\" rel=\"noreferrer noopener\">Autocomplete<\/a> c\u1ee7a Google, h\u1ec7 th\u1ed1ng d\u1ef1 \u0111o\u00e1n t\u1eeb kh\u00f3a ngay khi ng\u01b0\u1eddi d\u00f9ng b\u1eaft \u0111\u1ea7u nh\u1eadp, gi\u00fap h\u1ecd ho\u00e0n th\u00e0nh truy v\u1ea5n nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c ch\u1ec9 sau v\u00e0i k\u00fd t\u1ef1. \u0110\u1ec3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t t\u00ednh n\u0103ng t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n n\u00e0y, Google \u0111\u00e3 ph\u1ea3i:<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 1:<\/strong> X\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1:<\/p>\n\n\n\n<p>Trong h\u00e0nh vi t\u00ecm ki\u1ebfm th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng \u0111\u1ebfn Google v\u1edbi m\u1ed9t \u00fd t\u01b0\u1edfng nh\u1ea5t \u0111\u1ecbnh trong \u0111\u1ea7u, nh\u01b0ng h\u1ecd kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng bi\u1ebft c\u00e1ch di\u1ec5n \u0111\u1ea1t tr\u1ecdn v\u1eb9n ho\u1eb7c ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p>Vi\u1ec7c nh\u1eadp to\u00e0n b\u1ed9 t\u1eeb kh\u00f3a c\u00f3 th\u1ec3 m\u1ea5t th\u1eddi gian, \u0111\u1eb7c bi\u1ec7t tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng. \u0110\u1ed3ng th\u1eddi, n\u1ebfu ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng r\u00f5 m\u00ecnh n\u00ean t\u00ecm theo c\u1ee5m t\u1eeb n\u00e0o, tr\u1ea3i nghi\u1ec7m t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 tr\u1edf n\u00ean ch\u1eadm ch\u1ea1p, thi\u1ebfu \u0111\u1ecbnh h\u01b0\u1edbng.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 2:<\/strong> X\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n&nbsp;<\/p>\n\n\n\n<p>Google nh\u1eadn ra r\u1eb1ng, v\u1ea5n \u0111\u1ec1 kh\u00f4ng n\u1eb1m \u1edf c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm, m\u00e0 \u1edf ch\u00ednh kho\u1ea3nh kh\u1eafc khi ng\u01b0\u1eddi d\u00f9ng b\u1eaft \u0111\u1ea7u g\u00f5, \u0111\u00e2y l\u00e0 \u0111i\u1ec3m ti\u1ebfp x\u00fac \u0111\u1ea7u ti\u00ean, v\u00e0 c\u0169ng l\u00e0 n\u01a1i h\u1ecd c\u1ea7n \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nhi\u1ec1u nh\u1ea5t. Ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng l\u01b0\u1ee1ng l\u1ef1 gi\u1eefa nhi\u1ec1u c\u00e1ch di\u1ec5n \u0111\u1ea1t kh\u00e1c nhau, ho\u1eb7c kh\u00f4ng bi\u1ebft ch\u00ednh x\u00e1c m\u00ecnh c\u1ea7n c\u1ee5 th\u1ec3 h\u00f3a \u0111i\u1ec1u g\u00ec.<\/p>\n\n\n\n<p>Vi\u1ec7c g\u1ee3i \u00fd c\u00e1c truy v\u1ea5n c\u00f3 xu h\u01b0\u1edbng ph\u1ed5 bi\u1ebfn, \u0111\u00fang ng\u1eef c\u1ea3nh v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi v\u1ecb tr\u00ed ho\u1eb7c th\u1eddi \u0111i\u1ec3m, ch\u00ednh l\u00e0 ch\u00eca kh\u00f3a gi\u00fap Google gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n<p><strong>B\u01b0\u1edbc 3: <\/strong>\u0110\u1ec1 xu\u1ea5t ph\u01b0\u01a1ng \u00e1n:<\/p>\n\n\n\n<p>\u0110\u1ec3 ra m\u1eaft \u0111\u01b0\u1ee3c t\u00ednh n\u0103ng n\u00e0y, Google \u0111\u00e3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thi\u1ebft k\u1ebf UI v\u00e0 x\u1eed l\u00fd g\u1ee3i \u00fd theo th\u1eddi gian th\u1ef1c;<\/li>\n\n\n\n<li>Ph\u00e2n t\u00edch d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 \u0111\u01b0a ra g\u1ee3i \u00fd ph\u00f9 h\u1ee3p;<\/li>\n\n\n\n<li>M\u1edf r\u1ed9ng backend x\u1eed l\u00fd h\u00e0ng tri\u1ec7u truy v\u1ea5n;<\/li>\n\n\n\n<li>Lo\u1ea1i b\u1ecf n\u1ed9i dung ph\u1ea3n c\u1ea3m b\u1eb1ng thu\u1eadt to\u00e1n v\u00e0 d\u1eef li\u1ec7u xu h\u01b0\u1edbng.<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1edd \u0111\u00f3, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 gi\u1ea3m kho\u1ea3ng 25% th\u1eddi gian g\u00f5 ph\u00edm, ti\u1ebft ki\u1ec7m t\u1ed5ng c\u1ed9ng h\u01a1n 200 n\u0103m th\u1eddi gian g\u00f5 m\u1ed7i ng\u00e0y tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<p>Qua \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y, gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 kh\u00f4ng ch\u1ec9 l\u00e0 ra l\u1ec7nh cho m\u00e1y t\u00ednh, m\u00e0 l\u00e0 hi\u1ec3u ng\u01b0\u1eddi d\u00f9ng v\u00e0 thi\u1ebft k\u1ebf gi\u1ea3i ph\u00e1p \u0111\u00e1p \u1ee9ng \u0111\u00fang nhu c\u1ea7u.<\/p>\n\n\n\n<p>\u0110\u1ed3ng th\u1eddi, hi\u1ec7n nay, nhi\u1ec1u c\u00f4ng ty c\u00f4ng ngh\u1ec7 v\u1eabn ti\u1ebfp t\u1ee5c \u01b0u ti\u00ean t\u00ecm ki\u1ebfm \u1ee9ng vi\u00ean IT c\u00f3 k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 t\u1ed1t. B\u1eb1ng ch\u1ee9ng l\u00e0 s\u1ed1 li\u1ec7u t\u1eeb <a href=\"https:\/\/itviec.com\/bao-cao\/luong-it-va-thi-truong-tuyen-dung-it-vietnam\" target=\"_blank\" rel=\"noreferrer noopener\">B\u00e1o c\u00e1o L\u01b0\u01a1ng v\u00e0 Th\u1ecb tr\u01b0\u1eddng Tuy\u1ec3n d\u1ee5ng IT t\u1ea1i Vi\u1ec7t Nam 2024-2025<\/a> cho th\u1ea5y K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u00e0 1 trong 5 k\u1ef9 n\u0103ng m\u1ec1m c\u00f3 nhu c\u1ea7u tuy\u1ec3n d\u1ee5ng cao nh\u1ea5t n\u1eeda \u0111\u1ea7u n\u0103m 2025, v\u1edbi 37.3%.<\/p>\n\n\n\n<p>V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 hi\u1ec7u qu\u1ea3?\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-7-b\u01b0\u1edbc-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1-k\u1ef9-thu\u1eadt-ma-l\u1eadp-trinh-vien-c\u1ea7n-n\u1eafm-v\u1eefng\"><span class=\"ez-toc-section\" id=\"7_buoc_giai_quyet_van_de_ky_thuat_ma_lap_trinh_vien_can_nam_vung\"><\/span>7 b\u01b0\u1edbc gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n n\u1eafm v\u1eefng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-1-xac-d\u1ecbnh-v\u1ea5n-d\u1ec1\">B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh v\u1ea5n \u0111\u1ec1<\/h3>\n\n\n\n<p>B\u1ea5t c\u1ee9 khi n\u00e0o m\u1ed9t L\u1eadp tr\u00ecnh vi\u00ean \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u x\u00e2y d\u1ef1ng gi\u1ea3i ph\u00e1p cho m\u1ed9t v\u1ea5n \u0111\u1ec1, tr\u01b0\u1edbc ti\u00ean b\u1ea1n ph\u1ea3i nghi\u00ean c\u1ee9u v\u1ea5n \u0111\u1ec1 \u0111\u00f3 v\u00e0 x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec c\u1ea7n l\u00e0m. N\u00f3i c\u00e1ch kh\u00e1c, b\u1ea1n c\u1ea7n gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u1eb7t kh\u00e1i ni\u1ec7m tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n gi\u1ea3i ph\u00e1p \u0111\u00f3 m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf. V\u00ec khi x\u00e1c \u0111\u1ecbnh sai v\u1ea5n \u0111\u1ec1, m\u1ecdi n\u1ed7 l\u1ef1c v\u1ec1 sau s\u1ebd tr\u1edf n\u00ean l\u00e3ng ph\u00ed.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>&#8220;N\u1ebfu t\u00f4i c\u00f3 m\u1ed9t gi\u1edd \u0111\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t v\u1ea5n \u0111\u1ec1, t\u00f4i s\u1ebd d\u00e0nh 55 ph\u00fat \u0111\u1ec3 suy ngh\u0129 v\u1ec1 v\u1ea5n \u0111\u1ec1 \u0111\u00f3 v\u00e0 5 ph\u00fat \u0111\u1ec3 ngh\u0129 v\u1ec1 gi\u1ea3i ph\u00e1p.&#8221; &#8211; Albert Einstein<\/em><\/p>\n<\/blockquote>\n\n\n\n<p>H\u00e3y m\u00f4 t\u1ea3 v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch c\u1ee5 th\u1ec3, c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c v\u00e0 \u0111\u1ea3m b\u1ea3o l\u00e0 b\u1ea1n \u0111\u00e3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vi\u1ebft v\u1ea5n \u0111\u1ec1 ra gi\u1ea5y \u0111\u1ec3 l\u00e0m r\u00f5 v\u00e0 th\u1ed1ng nh\u1ea5t \u0111\u1ecbnh ngh\u0129a v\u1ec1 v\u1ea5n \u0111\u1ec1 gi\u1eefa c\u00e1c b\u00ean;<\/li>\n\n\n\n<li>X\u00e1c \u0111\u1ecbnh r\u00f5 y\u00eau c\u1ea7u v\u00e0 ph\u1ea1m vi c\u1ea7n x\u1eed l\u00fd;<\/li>\n\n\n\n<li>Hi\u1ec3u \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a gi\u1ea3i ph\u00e1p.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-2-phan-tich-nguyen-nhan-g\u1ed1c-r\u1ec5\">B\u01b0\u1edbc 2: Ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5<\/h3>\n\n\n\n<p>Khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 \u201c\u0111\u00e0o s\u00e2u\u201d \u0111\u1ec3 t\u00ecm hi\u1ec3u v\u00ec sao n\u00f3 x\u1ea3y ra. Vi\u1ec7c n\u00e0y gi\u00fap b\u1ea1n tr\u00e1nh vi\u1ec7c \u201cch\u1eefa\u201d tri\u1ec7u ch\u1ee9ng m\u00e0 b\u1ecf qua c\u0103n nguy\u00ean. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c L\u1eadp tr\u00ecnh vi\u00ean s\u1eed d\u1ee5ng nh\u01b0:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-bi\u1ec3u-d\u1ed3-x\u01b0\u01a1ng-ca\"><strong>Bi\u1ec3u \u0111\u1ed3 x\u01b0\u01a1ng c\u00e1<\/strong><\/h4>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap b\u1ea1n h\u00ecnh dung m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo nh\u00f3m. H\u00ecnh d\u1ea1ng bi\u1ec3u \u0111\u1ed3 gi\u1ed1ng x\u01b0\u01a1ng c\u00e1, trong \u0111\u00f3 &#8220;x\u01b0\u01a1ng s\u1ed1ng&#8221; l\u00e0 v\u1ea5n \u0111\u1ec1 ch\u00ednh, c\u00f2n c\u00e1c &#8220;x\u01b0\u01a1ng nh\u00e1nh&#8221; l\u00e0 nh\u00f3m nguy\u00ean nh\u00e2n nh\u01b0 con ng\u01b0\u1eddi, quy tr\u00ecnh, thi\u1ebft b\u1ecb, m\u00f4i tr\u01b0\u1eddng,&#8230; B\u1eb1ng c\u00e1ch li\u1ec7t k\u00ea m\u1ecdi y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1 theo t\u1eebng nh\u00f3m, b\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i v\u00e0 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng \u0111\u1ec3 d\u1ec5 d\u00e0ng x\u00e2y d\u1ef1ng gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, v\u1ea5n \u0111\u1ec1 l\u00e0 web t\u1ea3i ch\u1eadm b\u1ea5t th\u01b0\u1eddng th\u00ec nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>X\u01b0\u01a1ng s\u1ed1ng: T\u1ed1c \u0111\u1ed9 t\u1ea3i ch\u1eadm<\/li>\n\n\n\n<li>X\u01b0\u01a1ng nh\u00e1nh:\n<ul class=\"wp-block-list\">\n<li>Con ng\u01b0\u1eddi: L\u1eadp tr\u00ecnh vi\u00ean thi\u1ebfu kinh nghi\u1ec7m t\u1ed1i \u01b0u frontend<\/li>\n\n\n\n<li>Quy tr\u00ecnh: Kh\u00f4ng c\u00f3 b\u01b0\u1edbc ki\u1ec3m tra hi\u1ec7u n\u0103ng tr\u01b0\u1edbc khi release<\/li>\n\n\n\n<li>Thi\u1ebft b\u1ecb: Server qu\u00e1 t\u1ea3i v\u00e0o gi\u1edd cao \u0111i\u1ec3m<\/li>\n\n\n\n<li>M\u00f4i tr\u01b0\u1eddng: K\u1ebft n\u1ed1i m\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh t\u1eeb ph\u00eda ng\u01b0\u1eddi d\u00f9ng<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>K\u1ebft qu\u1ea3 l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n t\u00edch to\u00e0n di\u1ec7n \u0111\u1ec3 bi\u1ebft nguy\u00ean nh\u00e2n ch\u00ednh n\u1eb1m \u1edf \u0111\u00e2u (v\u00ed d\u1ee5: ph\u1ea7n m\u1ec1m v\u00e0 quy tr\u00ecnh).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"421\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60.png\" alt=\"\" class=\"wp-image-89640\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60.png 800w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60-300x158.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60-640x337.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60-200x105.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-60-768x404.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-phan-tich-nguyen-nhan-va-k\u1ebft-qu\u1ea3-nbsp\"><strong>Ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3&nbsp;<\/strong><\/h4>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u00ecm hi\u1ec3u v\u1ea5n \u0111\u1ec1 b\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u1ea3 nguy\u00ean nh\u00e2n tr\u1ef1c ti\u1ebfp v\u00e0 gi\u00e1n ti\u1ebfp, c\u0169ng nh\u01b0 c\u00e1c h\u1ec7 qu\u1ea3, gi\u00fap b\u1ea1n hi\u1ec3u s\u00e2u h\u01a1n v\u00e0 x\u00e2y d\u1ef1ng gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<p>Ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n v\u00e0 k\u1ebft qu\u1ea3 \u0111\u00f2i h\u1ecfi b\u1ea1n ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u1ea7y \u0111\u1ee7 c\u00e1c nguy\u00ean nh\u00e2n v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng c\u1ee7a t\u1eebng nguy\u00ean nh\u00e2n. \u0110\u00e2y l\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn to\u00e0n di\u1ec7n v\u00e0 ph\u00f9 h\u1ee3p khi b\u1ea1n c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, team g\u1eb7p v\u1ea5n \u0111\u1ec1 khi m\u1ed9t API th\u01b0\u1eddng xuy\u00ean tr\u1ea3 v\u1ec1 l\u1ed7i 500. B\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nguy\u00ean nh\u00e2n tr\u1ef1c ti\u1ebfp: H\u00e0m x\u1eed l\u00fd logic trong API g\u1eb7p null object<\/li>\n\n\n\n<li>Nguy\u00ean nh\u00e2n gi\u00e1n ti\u1ebfp:\n<ul class=\"wp-block-list\">\n<li>Thi\u1ebfu ki\u1ec3m tra d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o<\/li>\n\n\n\n<li>Database c\u00f3 b\u1ea3n ghi b\u1ecb thi\u1ebfu<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>H\u1ec7 qu\u1ea3:\n<ul class=\"wp-block-list\">\n<li>Client-side crash<\/li>\n\n\n\n<li>Gi\u1ea3m tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng<\/li>\n\n\n\n<li>\u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c microservice kh\u00e1c<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Qua \u0111\u00f3, b\u1ea1n hi\u1ec3u \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c nguy\u00ean nh\u00e2n v\u00e0 h\u1eadu qu\u1ea3, \u0111\u1ec3 l\u00ean k\u1ebf ho\u1ea1ch s\u1eeda l\u1ed7i tri\u1ec7t \u0111\u1ec3.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-ph\u01b0\u01a1ng-phap-5-l\u1ea7n-t\u1ea1i-sao\"><strong>Ph\u01b0\u01a1ng ph\u00e1p &#8220;5 l\u1ea7n T\u1ea1i sao&#8221;<\/strong><\/h4>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p \u201c5 l\u1ea7n t\u1ea1i sao\u201d gi\u00fap hi\u1ec3u s\u00e2u nguy\u00ean nh\u00e2n b\u1eb1ng c\u00e1ch li\u00ean t\u1ee5c \u0111\u1eb7t c\u00e2u h\u1ecfi \u201cT\u1ea1i sao?\u201d. M\u1ed7i c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 c\u01a1 s\u1edf cho c\u00e2u h\u1ecfi k\u1ebf ti\u1ebfp. C\u00e1ch n\u00e0y gi\u00fap kh\u00e1m ph\u00e1 nguy\u00ean nh\u00e2n s\u00e2u xa, tr\u00e1nh gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 sai tr\u1ecdng t\u00e2m.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 c\u00e1ch \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y khi b\u1ea1n g\u1eb7p v\u1ea5n \u0111\u1ec1 \u1ee9ng d\u1ee5ng Android kh\u00f4ng g\u1eedi \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o \u0111\u1ea9y nh\u01b0 sau:<\/p>\n\n\n\n<p>Ph\u00e2n t\u00edch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea1i sao th\u00f4ng b\u00e1o kh\u00f4ng g\u1eedi \u0111\u01b0\u1ee3c? Do Firebase kh\u00f4ng nh\u1eadn y\u00eau c\u1ea7u t\u1eeb app<\/li>\n\n\n\n<li>T\u1ea1i sao Firebase kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u? App kh\u00f4ng g\u1ecdi \u0111\u01b0\u1ee3c API g\u1eedi push<\/li>\n\n\n\n<li>T\u1ea1i sao API kh\u00f4ng \u0111\u01b0\u1ee3c g\u1ecdi? H\u00e0m g\u1eedi push kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c thi<\/li>\n\n\n\n<li>T\u1ea1i sao h\u00e0m kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c thi? L\u1ed7i trong x\u1eed l\u00fd callback<\/li>\n\n\n\n<li>T\u1ea1i sao c\u00f3 l\u1ed7i trong callback? Dev ch\u01b0a ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n null<\/li>\n<\/ul>\n\n\n\n<p>V\u1edbi v\u00ed d\u1ee5 tr\u00ean, b\u1ea1n t\u00ecm ra nguy\u00ean nh\u00e2n g\u1ed1c l\u00e0 l\u1ed7i logic do thi\u1ebfu ki\u1ec3m tra null.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-ph\u01b0\u01a1ng-phap-pareto\"><strong>Ph\u01b0\u01a1ng ph\u00e1p Pareto<\/strong><\/h4>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p Pareto gi\u00fap x\u00e1c \u0111\u1ecbnh \u0111\u00e2u l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n quan tr\u1ecdng nh\u1ea5t c\u1ea7n \u01b0u ti\u00ean gi\u1ea3i quy\u1ebft d\u1ef1a tr\u00ean nguy\u00ean l\u00fd 80\/20, ngh\u0129a l\u00e0 80% v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng \u0111\u1ebfn t\u1eeb 20% nguy\u00ean nh\u00e2n. Bi\u1ec3u \u0111\u1ed3 n\u00e0y \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n theo c\u00e1ch sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 c\u00e1c nguy\u00ean nh\u00e2n c\u1ee7a v\u1ea5n \u0111\u1ec1 c\u00f9ng v\u1edbi s\u1ed1 l\u1ea7n x\u1ea3y ra ho\u1eb7c m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng.<\/li>\n\n\n\n<li>V\u1ebd bi\u1ec3u \u0111\u1ed3 c\u1ed9t, trong \u0111\u00f3 m\u1ed7i c\u1ed9t \u0111\u1ea1i di\u1ec7n cho m\u1ed9t nguy\u00ean nh\u00e2n v\u00e0 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 t\u1eeb nguy\u00ean nh\u00e2n \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t \u0111\u1ebfn nh\u1ecf nh\u1ea5t.<\/li>\n\n\n\n<li>Sau \u0111\u00f3 v\u1ebd th\u00eam m\u1ed9t \u0111\u01b0\u1eddng cong th\u1ec3 hi\u1ec7n t\u1ef7 l\u1ec7 t\u00edch l\u0169y t\u1eeb tr\u00e1i sang ph\u1ea3i, gi\u00fap b\u1ea1n th\u1ea5y r\u00f5 nh\u00f3m nguy\u00ean nh\u00e2n ch\u00ednh chi\u1ebfm bao nhi\u00eau ph\u1ea7n tr\u0103m t\u1ed5ng \u1ea3nh h\u01b0\u1edfng.<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5, \u1ee9ng d\u1ee5ng b\u1ecb crash nhi\u1ec1u trong tu\u1ea7n qua, sau khi thu th\u1eadp log v\u00e0 ph\u00e2n lo\u1ea1i nguy\u00ean nh\u00e2n crash nh\u01b0 sau:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Nguy\u00ean nh\u00e2n<\/strong><\/td><td><strong>S\u1ed1 l\u1ea7n x\u1ea3y ra<\/strong><\/td><td><strong>T\u1ef7 l\u1ec7<\/strong><\/td><td><strong>T\u1ef7 l\u1ec7 t\u00edch l\u0169y<\/strong><\/td><\/tr><tr><td>L\u1ed7i Null Pointer (\u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng t\u1ed3n t\u1ea1i)<\/td><td>40<\/td><td>40%<\/td><td>40%<\/td><\/tr><tr><td>L\u1ed7i ph\u00e2n t\u00edch JSON (d\u1eef li\u1ec7u kh\u00f4ng \u0111\u00fang \u0111\u1ecbnh d\u1ea1ng)<\/td><td>25<\/td><td>25%<\/td><td>65%<\/td><\/tr><tr><td>L\u1ed7i k\u1ebft n\u1ed1i m\u1ea1ng<\/td><td>20<\/td><td>20%<\/td><td>85%<\/td><\/tr><tr><td>L\u1ed7i kh\u00f4ng t\u01b0\u01a1ng th\u00edch phi\u00ean b\u1ea3n Android<\/td><td>10<\/td><td>10%<\/td><td>95%<\/td><\/tr><tr><td>L\u1ed7i giao di\u1ec7n (UI)<\/td><td>5<\/td><td>5%<\/td><td>100%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 v\u1ebd bi\u1ec3u \u0111\u1ed3 Pareto b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tr\u1ee5c X: c\u00e1c nguy\u00ean nh\u00e2n, \u0111\u01b0\u1ee3c s\u1eafp theo th\u1ee9 t\u1ef1 t\u1eeb \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t xu\u1ed1ng nh\u1ecf nh\u1ea5t.<\/li>\n\n\n\n<li>Tr\u1ee5c Y tr\u00e1i: s\u1ed1 l\u1ea7n x\u1ea3y ra (\u0111\u01a1n v\u1ecb: l\u1ea7n) v\u00e0 bi\u1ec3u di\u1ec5n b\u1eb1ng c\u1ed9t.<\/li>\n\n\n\n<li>Tr\u1ee5c Y ph\u1ea3i: t\u1ef7 l\u1ec7 t\u00edch l\u0169y (%), bi\u1ec3u di\u1ec5n b\u1eb1ng \u0111\u01b0\u1eddng cong.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"421\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61.png\" alt=\"\" class=\"wp-image-89642\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61.png 800w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61-300x158.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61-640x337.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61-200x105.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-61-768x404.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Sau khi xem bi\u1ec3u \u0111\u1ed3, nh\u00f3m nh\u1eadn ra: 2 nguy\u00ean nh\u00e2n \u0111\u1ea7u ti\u00ean (null pointer + l\u1ed7i JSON) chi\u1ebfm t\u1edbi 65% t\u1ed5ng s\u1ed1 l\u1ea7n crash.<\/p>\n\n\n\n<p>\u0110\u1eebng qu\u00ean thu th\u1eadp th\u00eam \u00fd ki\u1ebfn t\u1eeb \u0111\u1ed3ng \u0111\u1ed9i, ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c nh\u1eefng ng\u01b0\u1eddi li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 c\u00f3 th\u00eam g\u00f3c nh\u00ecn. \u0110\u1ed3ng th\u1eddi, x\u00e1c \u0111\u1ecbnh r\u00f5 gi\u1edbi h\u1ea1n c\u1ee7a gi\u1ea3i ph\u00e1p: nh\u1eefng g\u00ec b\u1ea1n c\u00f3 th\u1ec3 v\u00e0 kh\u00f4ng th\u1ec3 x\u1eed l\u00fd nh\u01b0 ng\u00e2n s\u00e1ch, c\u00f4ng ngh\u1ec7 cho \u0111\u1ebfn th\u1eddi gian.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>Chi ti\u1ebft c\u00e1ch Pareto \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong <a href=\"https:\/\/itviec.com\/blog\/ky-nang-quan-ly-thoi-gian\/\" target=\"_blank\" rel=\"noreferrer noopener\">k\u1ef9 n\u0103ng qu\u1ea3n l\u00fd th\u1eddi gian<\/a> \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c cho d\u00e2n IT.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-3-phat-tri\u1ec3n-cac-ph\u01b0\u01a1ng-an-thu\u1eadt-toan\">B\u01b0\u1edbc 3: Ph\u00e1t tri\u1ec3n c\u00e1c ph\u01b0\u01a1ng \u00e1n, thu\u1eadt to\u00e1n<\/h3>\n\n\n\n<p>Khi v\u1ea5n \u0111\u1ec1 \u0111\u00e3 r\u00f5 r\u00e0ng v\u00e0 nguy\u00ean nh\u00e2n \u0111\u00e3 \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n, \u0111\u00e2y l\u00e0 l\u00fac b\u1ea1n b\u1eaft \u0111\u1ea7u \u0111\u1ec1 xu\u1ea5t c\u00e1c gi\u1ea3i ph\u00e1p. \u0110\u1eebng ch\u1ecdn ngay ph\u01b0\u01a1ng \u00e1n \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n trong \u0111\u1ea7u m\u00e0 h\u00e3y \u0111\u1ec1 xu\u1ea5t nhi\u1ec1u h\u01b0\u1edbng ti\u1ebfp c\u1eadn, ph\u00e2n t\u00edch \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 th\u1ea3o lu\u1eadn v\u1edbi \u0111\u1ed3ng \u0111\u1ed9i.<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 g\u1ee3i \u00fd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1eadp gi\u1ea3 thuy\u1ebft v\u00e0 th\u1eed nghi\u1ec7m t\u1eebng b\u01b0\u1edbc;<\/li>\n\n\n\n<li>Suy ngh\u0129 t\u1eeb nhi\u1ec1u g\u00f3c nh\u00ecn (L\u1eadp tr\u00ecnh vi\u00ean, PO, user, doanh nghi\u1ec7p);<\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf thu\u1eadt to\u00e1n v\u00e0 m\u00f4 t\u1ea3 b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi chuy\u1ec3n sang code.<\/li>\n<\/ul>\n\n\n\n<p>Vi\u1ec7c vi\u1ebft ra thu\u1eadt to\u00e1n b\u1eb1ng v\u0103n b\u1ea3n s\u1ebd gi\u00fap b\u1ea1n \u0111\u1ecbnh h\u00ecnh logic r\u00f5 r\u00e0ng v\u00e0 h\u1ea1n ch\u1ebf l\u1ed7i trong b\u01b0\u1edbc hi\u1ec7n th\u1ef1c h\u00f3a sau \u0111\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-4-code\">B\u01b0\u1edbc 4: Code<\/h3>\n\n\n\n<p>D\u1ef1a tr\u00ean thu\u1eadt to\u00e1n \u0111\u00e3 x\u00e2y d\u1ef1ng, b\u1ea1n b\u1eaft \u0111\u1ea7u tri\u1ec3n khai b\u1eb1ng ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh ph\u00f9 h\u1ee3p. H\u00e3y \u0111\u1ea3m b\u1ea3o code r\u00f5 r\u00e0ng, d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00c1p d\u1ee5ng clean code, \u0111\u1eb7t t\u00ean bi\u1ebfn\/h\u00e0m c\u00f3 \u00fd ngh\u0129a;<\/li>\n\n\n\n<li>Chia nh\u1ecf ch\u1ee9c n\u0103ng th\u00e0nh c\u00e1c module d\u1ec5 ki\u1ec3m so\u00e1t;<\/li>\n\n\n\n<li>\u0110\u1ea3m b\u1ea3o m\u00e3 linh ho\u1ea1t, c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng ho\u1eb7c t\u00e1i s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-5-th\u1eed-nghi\u1ec7m-va-debug\">B\u01b0\u1edbc 5: Th\u1eed nghi\u1ec7m v\u00e0 debug<\/h3>\n\n\n\n<p>Sau khi code xong, b\u1ea1n c\u1ea7n ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 mong \u0111\u1ee3i. Kh\u00f4ng ch\u1ec9 ki\u1ec3m th\u1eed \u0111\u1ea7u v\u00e0o &#8211; \u0111\u1ea7u ra, m\u00e0 c\u00f2n c\u1ea7n \u0111\u00e1nh gi\u00e1 hi\u1ec7u n\u0103ng, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tr\u01b0\u1edbc khi chuy\u1ec3n sang cho Tester.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-6-danh-gia-k\u1ebft-qu\u1ea3\">B\u01b0\u1edbc 6: \u0110\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3<\/h3>\n\n\n\n<p>Sau khi gi\u1ea3i ph\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c tri\u1ec3n khai, h\u00e3y d\u00e0nh th\u1eddi gian \u0111\u1ec3 suy ng\u1eabm v\u1ec1 quy tr\u00ecnh v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 b\u1eb1ng m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ea3i ph\u00e1p c\u00f3 gi\u1ea3i quy\u1ebft \u0111\u00fang v\u1ea5n \u0111\u1ec1 kh\u00f4ng?<\/li>\n\n\n\n<li>Gi\u1ea3i ph\u00e1p c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u ban \u0111\u1ea7u kh\u00f4ng?<\/li>\n\n\n\n<li>Gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n th\u00eam \u1edf \u0111\u00e2u?<\/li>\n\n\n\n<li>Gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng ho\u1eb7c m\u1edf r\u1ed9ng kh\u00f4ng?<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u00e2y l\u00e0 b\u01b0\u1edbc gi\u00fap b\u1ea1n \u0111\u00fac k\u1ebft ra b\u00e0i h\u1ecdc kinh nghi\u1ec7m \u0111\u1ec3 \u00e1p d\u1ee5ng cho c\u00e1c th\u00e1ch th\u1ee9c kh\u00e1c trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b\u01b0\u1edbc-7-ghi-l\u1ea1i-tai-li\u1ec7u-documenting\">B\u01b0\u1edbc 7: Ghi l\u1ea1i t\u00e0i li\u1ec7u (Documenting)<\/h3>\n\n\n\n<p>Cu\u1ed1i c\u00f9ng, \u0111\u1eebng qu\u00ean vi\u1ebft t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt. \u0110\u00e2y l\u00e0 ph\u1ea7n th\u01b0\u1eddng b\u1ecb b\u1ecf qua nh\u01b0ng l\u1ea1i c\u1ef1c k\u1ef3 quan tr\u1ecdng khi c\u1ea7n b\u1ea3o tr\u00ec, n\u00e2ng c\u1ea5p ho\u1eb7c chia s\u1ebb cho \u0111\u1ed3ng \u0111\u1ed9i sau n\u00e0y.<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 tr\u00ecnh b\u00e0y theo m\u00f4 h\u00ecnh STAR:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Situation (T\u00ecnh hu\u1ed1ng): M\u00f4 t\u1ea3 b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt ho\u1eb7c v\u1ea5n \u0111\u1ec1 c\u1ea7n gi\u1ea3i quy\u1ebft<\/li>\n\n\n\n<li>Task (Nhi\u1ec7m v\u1ee5): N\u00eau r\u00f5 m\u1ee5c ti\u00eau k\u1ef9 thu\u1eadt b\u1ea1n \u0111\u1eb7t ra \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<\/li>\n\n\n\n<li>Action (H\u00e0nh \u0111\u1ed9ng): Tr\u00ecnh b\u00e0y chi ti\u1ebft gi\u1ea3i ph\u00e1p b\u1ea1n \u0111\u00e3 th\u1ef1c hi\u1ec7n:\n<ul class=\"wp-block-list\">\n<li>Thu\u1eadt to\u00e1n v\u00e0 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng<\/li>\n\n\n\n<li>Ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng ho\u1eb7c thi\u1ebft k\u1ebf lu\u1ed3ng x\u1eed l\u00fd<\/li>\n\n\n\n<li>C\u00f4ng c\u1ee5, th\u01b0 vi\u1ec7n, framework h\u1ed7 tr\u1ee3<\/li>\n\n\n\n<li>Quy tr\u00ecnh tri\u1ec3n khai, testing ho\u1eb7c c\u00e1c l\u01b0u \u00fd khi debug<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Result (K\u1ebft qu\u1ea3): \u0110\u01b0a ra k\u1ebft qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u01b0 hi\u1ec7u su\u1ea5t c\u1ea3i thi\u1ec7n ra sao, ch\u1ec9 s\u1ed1 \u0111o l\u01b0\u1eddng ho\u1eb7c ph\u1ea3n h\u1ed3i t\u1eeb ng\u01b0\u1eddi d\u00f9ng<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-k\u1ef9-nang-b\u1ed5-tr\u1ee3-c\u1ea7n-thi\u1ebft-d\u1ec3-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1-hi\u1ec7u-qu\u1ea3\"><span class=\"ez-toc-section\" id=\"Ky_nang_bo_tro_can_thiet_de_giai_quyet_van_de_hieu_qua\"><\/span>K\u1ef9 n\u0103ng b\u1ed5 tr\u1ee3 c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/itviec.com\/blog\/cai-thien-ky-nang-lam-viec-nhom\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>K\u1ef9 n\u0103ng l\u00e0m vi\u1ec7c nh\u00f3m<\/strong><\/a><strong>:<\/strong> L\u00e0m vi\u1ec7c nh\u00f3m gi\u00fap b\u1ea1n nh\u00ecn nh\u1eadn v\u1ea5n \u0111\u1ec1 t\u1eeb nhi\u1ec1u g\u00f3c \u0111\u1ed9 kh\u00e1c nhau, \u0111\u01b0a ra gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n h\u01a1n. Vi\u1ec7c bi\u1ebft c\u00e1ch l\u1eafng nghe, ti\u1ebfp thu ph\u1ea3n h\u1ed3i v\u00e0 ph\u1ed1i h\u1ee3p nh\u1ecbp nh\u00e0ng v\u1edbi \u0111\u1ed3ng \u0111\u1ed9i l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 x\u1eed l\u00fd v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n v\u1eefng.<\/li>\n\n\n\n<li><a href=\"https:\/\/itviec.com\/blog\/cai-thien-ky-nang-giao-tiep\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>K\u1ef9 n\u0103ng giao ti\u1ebfp:<\/strong><\/a> D\u00f9 gi\u1ea3i ph\u00e1p b\u1ea1n \u0111\u01b0a ra c\u00f3 xu\u1ea5t s\u1eafc \u0111\u1ebfn \u0111\u00e2u, n\u00f3 c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ea1t m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng, d\u1ec5 hi\u1ec3u, ngay c\u1ea3 v\u1edbi ng\u01b0\u1eddi kh\u00f4ng chuy\u00ean v\u1ec1 k\u1ef9 thu\u1eadt. Trong b\u1ed1i c\u1ea3nh to\u00e0n c\u1ea7u h\u00f3a v\u00e0 l\u00e0m vi\u1ec7c t\u1eeb xa ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn, kh\u1ea3 n\u0103ng giao ti\u1ebfp m\u1ea1ch l\u1ea1c b\u1eb1ng l\u1eddi n\u00f3i v\u00e0 v\u0103n b\u1ea3n tr\u1edf n\u00ean thi\u1ebft y\u1ebfu \u0111\u1ec3 chia s\u1ebb \u00fd t\u01b0\u1edfng, gi\u1ea3i th\u00edch v\u1ea5n \u0111\u1ec1 v\u00e0 tr\u00ecnh b\u00e0y ph\u01b0\u01a1ng \u00e1n x\u1eed l\u00fd.<\/li>\n\n\n\n<li><strong>T\u01b0 duy logic v\u00e0 ph\u1ea3n bi\u1ec7n:<\/strong> L\u1eadp tr\u00ecnh vi\u00ean th\u01b0\u1eddng d\u00e0nh ph\u1ea7n l\u1edbn th\u1eddi gian \u0111\u1ec3 t\u00ecm l\u1ed7i v\u00e0 debug. T\u01b0 duy logic gi\u00fap L\u1eadp tr\u00ecnh vi\u00ean ph\u00e2n t\u00edch quy tr\u00ecnh, ph\u00e1t hi\u1ec7n b\u1ea5t th\u01b0\u1eddng v\u00e0 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m sai s\u00f3t. B\u00ean c\u1ea1nh \u0111\u00f3, t\u01b0 duy ph\u1ea3n bi\u1ec7n cho ph\u00e9p b\u1ea1n \u0111\u00e1nh gi\u00e1 v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch kh\u00e1ch quan, truy v\u1ebft nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 v\u00e0 c\u00e2n nh\u1eafc \u01b0u &#8211; nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a t\u1eebng gi\u1ea3i ph\u00e1p tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng \u00e1n t\u1ed1i \u01b0u.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cac-cau-h\u1ecfi-th\u01b0\u1eddng-g\u1eb7p-v\u1ec1-k\u1ef9-nang-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1\"><span class=\"ez-toc-section\" id=\"Cac_cau_hoi_thuong_gap_ve_ky_nang_giai_quyet_van_de\"><\/span>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-k\u1ef9-nang-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1-trong-nganh-it-khac-gi-so-v\u1edbi-cac-nganh-ngh\u1ec1-khac\">K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 trong ng\u00e0nh IT kh\u00e1c g\u00ec so v\u1edbi c\u00e1c ng\u00e0nh ngh\u1ec1 kh\u00e1c?<\/h3>\n\n\n\n<p>K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin \u0111\u00f2i h\u1ecfi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa t\u01b0 duy logic, kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch h\u1ec7 th\u1ed1ng v\u00e0 hi\u1ec3u bi\u1ebft s\u00e2u v\u1ec1 c\u00f4ng ngh\u1ec7 v\u00e0 c\u00f4ng c\u1ee5. Kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 x\u1eed l\u00fd t\u00ecnh hu\u1ed1ng, L\u1eadp tr\u00ecnh vi\u00ean ph\u1ea3i truy v\u1ebft nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ee7a l\u1ed7i, ph\u00e2n t\u00edch lu\u1ed3ng d\u1eef li\u1ec7u, c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng v\u00e0 t\u00ecm ra gi\u1ea3i ph\u00e1p c\u00f3 th\u1ec3 th\u1ef1c thi b\u1eb1ng c\u00f4ng c\u1ee5 k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p.&nbsp;<\/p>\n\n\n\n<p>Quy tr\u00ecnh gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 c\u00e0ng quan tr\u1ecdng h\u01a1n khi m\u1ed7i quy\u1ebft \u0111\u1ecbnh \u0111\u01b0a ra kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a ph\u1ea7n m\u1ec1m m\u00e0 c\u00f2n t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-vi-sao-hi\u1ec3u-ro-v\u1ea5n-d\u1ec1-l\u1ea1i-quan-tr\u1ecdng-h\u01a1n-tim-ra-gi\u1ea3i-phap\">V\u00ec sao hi\u1ec3u r\u00f5 v\u1ea5n \u0111\u1ec1 l\u1ea1i quan tr\u1ecdng h\u01a1n t\u00ecm ra gi\u1ea3i ph\u00e1p?<\/h3>\n\n\n\n<p>Hi\u1ec3u r\u00f5 v\u1ea5n \u0111\u1ec1 l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong quy tr\u00ecnh gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u00e0 c\u0169ng l\u00e0 b\u01b0\u1edbc n\u1ec1n t\u1ea3ng quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt. Vi\u1ec7c gi\u1ea3i quy\u1ebft sai v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 t\u1ed1n h\u00e0ng gi\u1edd vi\u1ebft code cho m\u1ed9t gi\u1ea3i ph\u00e1p kh\u00f4ng c\u1ea7n thi\u1ebft, th\u1eadm ch\u00ed, d\u1ec5 t\u1ea1o ra \u201ctechnical debt\u201d &#8211; nh\u1eefng chi ph\u00ed k\u1ef9 thu\u1eadt t\u00edch t\u1ee5 do gi\u1ea3i ph\u00e1p t\u1ea1m b\u1ee3.&nbsp;<\/p>\n\n\n\n<p>Ng\u01b0\u1ee3c l\u1ea1i, khi hi\u1ec3u \u0111\u00fang \u201cg\u1ed1c r\u1ec5\u201d c\u1ee7a v\u1ea5n \u0111\u1ec1, L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 ch\u1ecdn c\u00f4ng c\u1ee5 v\u00e0 c\u00e1ch ti\u1ebfp c\u1eadn ph\u00f9 h\u1ee3p h\u01a1n, t\u1eeb \u0111\u00f3 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3, b\u1ec1n v\u1eefng v\u00e0 tr\u00e1nh l\u1eb7p l\u1ea1i l\u1ed7i trong t\u01b0\u01a1ng lai. \u0110i\u1ec1u n\u00e0y g\u00f3p ph\u1ea7n x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng \u1ed5n \u0111\u1ecbnh v\u00e0 d\u1ec5 m\u1edf r\u1ed9ng v\u1ec1 l\u00e2u d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-lam-th\u1ebf-nao-d\u1ec3-l\u1eadp-trinh-vien-sang-t\u1ea1o-h\u01a1n-khi-gi\u1ea3i-quy\u1ebft-v\u1ea5n-d\u1ec1\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 L\u1eadp tr\u00ecnh vi\u00ean s\u00e1ng t\u1ea1o h\u01a1n khi gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1?<\/h3>\n\n\n\n<p>L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u1edbi 9 m\u1eb9o d\u01b0\u1edbi \u0111\u00e2y. B\u1eb1ng c\u00e1ch th\u1ef1c h\u00e0nh c\u00e1c k\u1ef9 thu\u1eadt n\u00e0y, b\u1ea1n s\u1ebd n\u00e2ng cao k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 v\u00e0 l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>M\u1eb9o<\/strong><\/td><td><strong>M\u00f4 t\u1ea3<\/strong><\/td><td><strong>L\u1ee3i \u00edch ch\u00ednh<\/strong><\/td><\/tr><tr><td>H\u00ecnh dung v\u1ea5n \u0111\u1ec1<\/td><td>V\u1ebd s\u01a1 \u0111\u1ed3, bi\u1ec3u \u0111\u1ed3 ho\u1eb7c lu\u1ed3ng x\u1eed l\u00fd \u0111\u1ec3 hi\u1ec3u r\u00f5 b\u1ea3n ch\u1ea5t v\u00e0 m\u1ed1i li\u00ean k\u1ebft gi\u1eefa c\u00e1c ph\u1ea7n c\u1ee7a v\u1ea5n \u0111\u1ec1<\/td><td>L\u00e0m r\u00f5 v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p<\/td><\/tr><tr><td>\u0110\u1ea3o ng\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1<\/td><td>Xem x\u00e9t h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a m\u1ee5c ti\u00eau \u0111\u1ec3 kh\u00e1m ph\u00e1 g\u00f3c nh\u00ecn m\u1edbi<\/td><td>M\u1edf ra g\u00f3c nh\u00ecn m\u1edbi<\/td><\/tr><tr><td>L\u00e0m vi\u1ec7c trong gi\u1edbi h\u1ea1n<\/td><td>L\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng gi\u1edbi h\u1ea1n v\u1ec1 th\u1eddi gian ho\u1eb7c ng\u00e2n s\u00e1ch&nbsp;<\/td><td>Kh\u01a1i d\u1eady s\u1ef1 s\u00e1ng t\u1ea1o<\/td><\/tr><tr><td>Ph\u00e9p lo\u1ea1i suy t\u1eeb l\u0129nh v\u1ef1c kh\u00e1c<\/td><td>V\u1eadn d\u1ee5ng gi\u1ea3i ph\u00e1p t\u1eeb l\u0129nh v\u1ef1c kh\u00e1c \u0111\u1ec3 m\u1edf r\u1ed9ng c\u00e1ch ti\u1ebfp c\u1eadn<\/td><td>\u00c1p d\u1ee5ng gi\u1ea3i ph\u00e1p t\u1eeb l\u0129nh v\u1ef1c kh\u00e1c<\/td><\/tr><tr><td>Rubber duck debugging<\/td><td>Gi\u1ea3i th\u00edch code ho\u1eb7c v\u1ea5n \u0111\u1ec1 cho ng\u01b0\u1eddi kh\u00e1c \u0111\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c l\u1ed7i c\u1ee7a m\u00ecnh<\/td><td>T\u1ef1 ph\u00e1t hi\u1ec7n l\u1ed7i<\/td><\/tr><tr><td>Ngh\u1ec9 gi\u1ea3i lao<\/td><td>Ngh\u1ec9 ng\u01a1i gi\u00fap t\u00e1i t\u1ea1o n\u0103ng l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u00edch s\u00e1ng t\u1ea1o<\/td><td>L\u00e0m m\u1edbi t\u01b0 duy<\/td><\/tr><tr><td>C\u1ed9ng t\u00e1c<\/td><td>Th\u1ea3o lu\u1eadn nh\u00f3m gi\u00fap khai th\u00e1c nhi\u1ec1u g\u00f3c nh\u00ecn v\u00e0 t\u1ea1o ra gi\u1ea3i ph\u00e1p phong ph\u00fa h\u01a1n<\/td><td>T\u1eadn d\u1ee5ng g\u00f3c nh\u00ecn \u0111a d\u1ea1ng t\u1eeb nhi\u1ec1u ng\u01b0\u1eddi<\/td><\/tr><tr><td>T\u1ea1o nguy\u00ean m\u1eabu v\u00e0 th\u1eed nghi\u1ec7m<\/td><td>L\u00e0m b\u1ea3n th\u1eed nghi\u1ec7m \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 ki\u1ec3m tra nhanh \u00fd t\u01b0\u1edfng tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng gi\u1ea3i ph\u00e1p<\/td><td>Ki\u1ec3m tra \u00fd t\u01b0\u1edfng nhanh<\/td><\/tr><tr><td>H\u1ecdc t\u1eeb th\u1ea5t b\u1ea1i<\/td><td>Ph\u00e2n t\u00edch nh\u1eefng g\u00ec kh\u00f4ng hi\u1ec7u qu\u1ea3 \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1ch ti\u1ebfp c\u1eadn trong t\u01b0\u01a1ng lai<\/td><td>C\u1ea3i thi\u1ec7n k\u1ebft qu\u1ea3 trong t\u01b0\u01a1ng lai<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-t\u1ed5ng-k\u1ebft\"><span class=\"ez-toc-section\" id=\"Tong_ket\"><\/span>T\u1ed5ng k\u1ebft<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, m\u00e0 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u01b0 duy v\u00e0 c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c. Vi\u1ec7c \u00e1p d\u1ee5ng quy tr\u00ecnh 7 b\u01b0\u1edbc, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c k\u1ef9 n\u0103ng h\u1ed7 tr\u1ee3 nh\u01b0 t\u01b0 duy logic, l\u00e0m vi\u1ec7c nh\u00f3m v\u00e0 giao ti\u1ebfp k\u1ef9 thu\u1eadt s\u1ebd gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean t\u0103ng kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi th\u1eed th\u00e1ch th\u1ef1c t\u1ebf. Trong b\u1ed1i c\u1ea3nh ng\u00e0nh IT ng\u00e0y c\u00e0ng \u0111\u1ec1 cao k\u1ef9 n\u0103ng m\u1ec1m, vi\u1ec7c \u0111\u1ea7u t\u01b0 nghi\u00eam t\u00fac cho kh\u1ea3 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c t\u1ed1t h\u01a1n, m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u00e0 qu\u00e1 tr\u00ecnh x\u00e1c \u0111\u1ecbnh r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a v\u1ea5n \u0111\u1ec1, ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n, \u0111\u1ec1 xu\u1ea5t v\u00e0 th\u1ef1c thi gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u. Trong l\u0129nh v\u1ef1c l\u1eadp tr\u00ecnh, k\u1ef9 n\u0103ng n\u00e0y gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean x\u1eed l\u00fd l\u1ed7i, t\u1ed1i \u01b0u h\u1ec7 th\u1ed1ng ho\u1eb7c x\u00e2y d\u1ef1ng t\u00ednh n\u0103ng m\u1edbi nhanh ch\u00f3ng. [&hellip;]<\/p>\n","protected":false},"author":233,"featured_media":89737,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[99,94],"tags":[],"class_list":["post-89639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-developer","category-su-nghiep-it"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt: 7 b\u01b0\u1edbc Developer c\u1ea7n n\u1eafm - ITviec Blog<\/title>\n<meta name=\"description\" content=\"T\u00ecm hi\u1ec3u 7 b\u01b0\u1edbc c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt d\u00e0nh cho Developer gi\u00fap \u0111\u01b0a ra gi\u1ea3i ph\u00e1p ch\u00ednh x\u00e1c, ti\u1ebft ki\u1ec7m th\u1eddi gian.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itviec.com\/blog\/ky-nang-giai-quyet-van-de\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"K\u1ef9 n\u0103ng gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt: 7 b\u01b0\u1edbc Developer c\u1ea7n n\u1eafm\" \/>\n<meta property=\"og:description\" content=\"Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 l\u00e0 qu\u00e1 tr\u00ecnh x\u00e1c \u0111\u1ecbnh r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a v\u1ea5n \u0111\u1ec1, ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n, \u0111\u1ec1 xu\u1ea5t v\u00e0 th\u1ef1c thi gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u. 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