{"id":59793,"date":"2024-11-27T10:32:44","date_gmt":"2024-11-27T03:32:44","guid":{"rendered":"https:\/\/jobsgo.vn\/blog\/?p=59793"},"modified":"2024-11-27T16:14:27","modified_gmt":"2024-11-27T09:14:27","slug":"fix-bug-la-gi","status":"publish","type":"post","link":"https:\/\/jobsgo.vn\/blog\/fix-bug-la-gi\/","title":{"rendered":"Fix-bug L\u00e0 G\u00ec? 4 Lo\u1ea1i Bug Ph\u1ed5 Bi\u1ebfn"},"content":{"rendered":"\n<div class=\"kk-star-ratings\n     kksr-valign-top     kksr-align-left    \"\n    data-payload=\"{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;59793&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;count&quot;:&quot;0&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.5&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\\u0110\\u00e1nh gi\\u00e1 post&quot;,&quot;legend&quot;:&quot;4.5\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;22&quot;,&quot;width&quot;:&quot;119&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;}\">\n    \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 119px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 22px; height: 22px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n    \n<div class=\"kksr-legend\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1 post<\/span>\n    <\/div>\n<\/div>\n<p><em>Fix-bug l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, khi m\u00e0 c\u00e1c l\u1ed7i, v\u1ea5n \u0111\u1ec1 xu\u1ea5t hi\u1ec7n trong m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n v\u00e0 s\u1eeda ch\u1eefa. N\u00f3 \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u1ee9ng d\u1ee5ng, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng m\u01b0\u1ee3t m\u00e0. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n <\/em><strong><em>fix-bug l\u00e0 g\u00ec<\/em><\/strong><em> c\u0169ng nh\u01b0 c\u00e1ch fix-bug hi\u1ec7u qu\u1ea3 nh\u1ea5t, c\u00e1c b\u1ea1n h\u00e3y \u0111\u1ecdc ngay b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/em><\/p>\n<div id=\"toc_container\" class=\"toc_light_blue no_bullets\"><p class=\"toc_title\">M\u1ee5c l\u1ee5c<\/p><ul class=\"toc_list\"><li><a href=\"#1_Bug_La_Gi_Fix-bug_La_Gi\">1. Bug L\u00e0 G\u00ec? Fix-bug L\u00e0 G\u00ec?<\/a><\/li><li><a href=\"#2_Loi_Ich_Cua_Viec_Fix-bug\">2. L\u1ee3i \u00cdch C\u1ee7a Vi\u1ec7c Fix-bug<\/a><ul><li><a href=\"#21_Dam_Bao_Chat_Luong\">2.1. \u0110\u1ea3m B\u1ea3o Ch\u1ea5t L\u01b0\u1ee3ng<\/a><\/li><li><a href=\"#22_Tinh_On_Dinh\">2.2. T\u00ednh \u1ed4n \u0110\u1ecbnh<\/a><\/li><li><a href=\"#23_Tang_Hieu_Suat\">2.3. T\u0103ng Hi\u1ec7u Su\u1ea5t<\/a><\/li><li><a href=\"#24_Nang_Cao_Hinh_Anh_Va_Uy_Tin\">2.4. N\u00e2ng Cao H\u00ecnh \u1ea2nh V\u00e0 Uy T\u00edn<\/a><\/li><li><a href=\"#25_Tiet_Kiem_Thoi_Gian\">2.5. Ti\u1ebft Ki\u1ec7m Th\u1eddi Gian<\/a><\/li><\/ul><\/li><li><a href=\"#3_Cach_Ghi_Lai_Bug_Phuc_Vu_Fix-Bug\">3. C\u00e1ch Ghi L\u1ea1i Bug Ph\u1ee5c V\u1ee5 Fix-Bug<\/a><\/li><li><a href=\"#4_Nguyen_Nhan_Xuat_Hien_Bug\">4. Nguy\u00ean Nh\u00e2n Xu\u1ea5t Hi\u1ec7n Bug<\/a><ul><li><a href=\"#41_Do_Con_Nguoi\">4.1. Do Con Ng\u01b0\u1eddi<\/a><\/li><li><a href=\"#42_Qua_Trinh_Trao_Doi_Thong_Tin\">4.2. Qu\u00e1 Tr\u00ecnh Trao \u0110\u1ed5i Th\u00f4ng Tin<\/a><\/li><li><a href=\"#43_Ung_Dung_Qua_Phuc_Tap\">4.3. \u1ee8ng D\u1ee5ng Qu\u00e1 Ph\u1ee9c T\u1ea1p<\/a><\/li><li><a href=\"#44_Thoi_Gian_Bi_Han_Che\">4.4. Th\u1eddi Gian B\u1ecb H\u1ea1n Ch\u1ebf<\/a><\/li><li><a href=\"#45_Ky_Nang_Test_Kem\">4.5. K\u1ef9 N\u0103ng Test K\u00e9m<\/a><\/li><li><a href=\"#46_Thay_Doi_Yeu_Cau_Lien_Tuc\">4.6. Thay \u0110\u1ed5i Y\u00eau C\u1ea7u Li\u00ean T\u1ee5c<\/a><\/li><li><a href=\"#47_Phien_Ban_Khong_Dong_Nhat\">4.7. Phi\u00ean B\u1ea3n Kh\u00f4ng \u0110\u1ed3ng Nh\u1ea5t<\/a><\/li><li><a href=\"#48_Code_Chua_Hieu_Qua\">4.8. Code Ch\u01b0a Hi\u1ec7u Qu\u1ea3<\/a><\/li><li><a href=\"#49_Dung_Tool_Sai_Cach\">4.9. D\u00f9ng Tool Sai C\u00e1ch<\/a><\/li><\/ul><\/li><li><a href=\"#5_Cac_Loai_Bug_Thuong_Gap\">5. C\u00e1c Lo\u1ea1i Bug Th\u01b0\u1eddng G\u1eb7p<\/a><ul><li><a href=\"#51_Bug_Chuc_Nang\">5.1. Bug Ch\u1ee9c N\u0103ng<\/a><\/li><li><a href=\"#52_Bug_Logic\">5.2. Bug Logic<\/a><\/li><li><a href=\"#53_Bug_Quy_Trinh_Lam_Viec\">5.3. Bug Quy Tr\u00ecnh L\u00e0m Vi\u1ec7c<\/a><\/li><li><a href=\"#54_Bug_Tich_Hop_Cap_He_Thong\">5.4. Bug T\u00edch H\u1ee3p C\u1ea5p H\u1ec7 Th\u1ed1ng<\/a><\/li><li><a href=\"#55_Bug_Cap_Don_Vi\">5.5. Bug C\u1ea5p \u0110\u01a1n V\u1ecb<\/a><\/li><li><a href=\"#56_Bug_Ngoai_Gioi_Han\">5.6. Bug Ngo\u00e0i Gi\u1edbi H\u1ea1n<\/a><\/li><\/ul><\/li><li><a href=\"#6_Cach_Fix-bug_Hieu_Qua_Nhat\">6. C\u00e1ch Fix-bug Hi\u1ec7u Qu\u1ea3 Nh\u1ea5t<\/a><ul><li><a href=\"#61_Buoc_1_Tiep_Nhan_Thong_Tin_Ve_Bug\">6.1. B\u01b0\u1edbc 1: Ti\u1ebfp Nh\u1eadn Th\u00f4ng Tin V\u1ec1 Bug<\/a><\/li><li><a href=\"#62_Buoc_2_Xac_Nhan_Va_Tai_Tao_Bug\">6.2. B\u01b0\u1edbc 2: X\u00e1c Nh\u1eadn V\u00e0 T\u00e1i T\u1ea1o Bug<\/a><\/li><li><a href=\"#63_Buoc_3_Phan_Tich_Va_Xac_Dinh_Nguyen_Nhan\">6.3. B\u01b0\u1edbc 3: Ph\u00e2n T\u00edch V\u00e0 X\u00e1c \u0110\u1ecbnh Nguy\u00ean Nh\u00e2n<\/a><\/li><li><a href=\"#64_Buoc_4_Tien_Hanh_Fix-Bug\">6.4. B\u01b0\u1edbc 4: Ti\u1ebfn H\u00e0nh Fix-Bug<\/a><\/li><li><a href=\"#65_Buoc_5_Kiem_Tra_Lai_Sau_Khi_Fix-Bug\">6.5. B\u01b0\u1edbc 5: Ki\u1ec3m Tra L\u1ea1i Sau Khi Fix-Bug<\/a><\/li><li><a href=\"#66_Buoc_6_Trien_Khai_Va_Theo_Doi_Fix-Bug\">6.6. B\u01b0\u1edbc 6: Tri\u1ec3n Khai V\u00e0 Theo D\u00f5i Fix-Bug<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h2><span id=\"1_Bug_La_Gi_Fix-bug_La_Gi\"><strong>1. Bug L\u00e0 G\u00ec? Fix-bug L\u00e0 G\u00ec?<\/strong><\/span><\/h2>\n<figure id=\"attachment_86955\" aria-describedby=\"caption-attachment-86955\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" class=\"wp-image-86955 size-full\" src=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/fix-bug-la-gi-1.jpg\" alt=\"fix-bug l\u00e0 g\u00ec\" width=\"800\" height=\"550\" srcset=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/fix-bug-la-gi-1.jpg 800w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/fix-bug-la-gi-1-300x206.jpg 300w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/fix-bug-la-gi-1-150x103.jpg 150w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/fix-bug-la-gi-1-768x528.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-86955\" class=\"wp-caption-text\"><center>Fix-bug L\u00e0 G\u00ec?<\/center><\/figcaption><\/figure>\n<p>Bug l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin \u0111\u1ec3 m\u00f4 t\u1ea3 m\u1ed9t l\u1ed7i ho\u1eb7c v\u1ea5n \u0111\u1ec1 trong m\u00e3 ngu\u1ed3n c\u1ee7a ph\u1ea7n m\u1ec1m, \u1ee9ng d\u1ee5ng. Bug xu\u1ea5t hi\u1ec7n khi ch\u01b0\u01a1ng tr\u00ecnh kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 d\u1ef1 ki\u1ebfn ho\u1eb7c kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u00fang v\u1edbi y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<blockquote id=\"debugging_la\u0300_gi\u0300\" cite=\"https:\/\/jobsgo.vn\/blog\/fix-bug-la-gi\/#debugger_la_gi\"><p>Fix-bug l\u00e0 qu\u00e1 tr\u00ecnh t\u00ecm ra v\u00e0 kh\u1eafc ph\u1ee5c l\u1ed7i trong m\u00e3 ngu\u1ed3n \u0111\u1ec3 ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 mong \u0111\u1ee3i. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n c\u1ee7a bug, ch\u1ec9nh s\u1eeda m\u00e3 ngu\u1ed3n \u0111\u1ec3 s\u1eeda l\u1ed7i v\u00e0 sau \u0111\u00f3 ki\u1ec3m th\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng bug \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa m\u00e0 kh\u00f4ng t\u1ea1o ra c\u00e1c v\u1ea5n \u0111\u1ec1 m\u1edbi.<\/p><\/blockquote>\n<p>S\u1eeda bug th\u01b0\u1eddng l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a quy tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m v\u00e0 b\u1ea3o tr\u00ec \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh, ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n<p><strong>Xem th\u00eam:<\/strong> <a href=\"https:\/\/jobsgo.vn\/blog\/mo-ta-cong-viec-phat-trien-phan-mem\/\" target=\"_blank\" rel=\"noopener\"><strong>Ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m l\u00e0 c\u00f4ng vi\u1ec7c nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/a><\/p>\n<h2><span id=\"2_Loi_Ich_Cua_Viec_Fix-bug\"><strong>2. L\u1ee3i \u00cdch C\u1ee7a Vi\u1ec7c Fix-bug<\/strong><\/span><\/h2>\n<p>S\u1eeda bug trong ph\u1ea7n m\u1ec1m mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, kh\u00f4ng ch\u1ec9 \u0111\u1ed1i v\u1edbi nh\u00e0 ph\u00e1t tri\u1ec3n m\u00e0 c\u00f2n \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi s\u1eed d\u1ee5ng v\u00e0 doanh nghi\u1ec7p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 l\u1ee3i \u00edch ch\u00ednh c\u1ee7a vi\u1ec7c fix-bug:<\/p>\n<h3><span id=\"21_Dam_Bao_Chat_Luong\"><strong>2.1. \u0110\u1ea3m B\u1ea3o Ch\u1ea5t L\u01b0\u1ee3ng<\/strong><\/span><\/h3>\n<p>Fix-bug \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ph\u1ea7n m\u1ec1m. Khi c\u00e1c l\u1ed7i \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf, ph\u1ea7n m\u1ec1m s\u1ebd th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1c ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, \u0111\u00e1p \u1ee9ng k\u1ef3 v\u1ecdng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. M\u1ed9t ph\u1ea7n m\u1ec1m ch\u1ea5t l\u01b0\u1ee3ng cao kh\u00f4ng ch\u1ec9 h\u1ea1n ch\u1ebf sai s\u00f3t m\u00e0 c\u00f2n mang l\u1ea1i s\u1ef1 tin t\u01b0\u1edfng l\u00e2u d\u00e0i cho kh\u00e1ch h\u00e0ng, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c ng\u00e0nh \u0111\u00f2i h\u1ecfi t\u00ednh ch\u00ednh x\u00e1c cao nh\u01b0 t\u00e0i ch\u00ednh, y t\u1ebf ho\u1eb7c h\u00e0ng kh\u00f4ng.<\/p>\n<h3><span id=\"22_Tinh_On_Dinh\"><strong>2.2. T\u00ednh \u1ed4n \u0110\u1ecbnh<\/strong><\/span><\/h3>\n<p>T\u00ednh \u1ed5n \u0111\u1ecbnh gi\u00fap ph\u1ea7n m\u1ec1m ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0, gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 c\u1ed1 gi\u00e1n \u0111o\u1ea1n nh\u01b0 crash (\u0111\u01a1 ph\u1ea7n m\u1ec1m) hay freeze (treo h\u1ec7 th\u1ed1ng). Khi fix-bug, \u0111\u1ed9i ng\u0169 ph\u00e1t tri\u1ec3n kh\u00f4ng ch\u1ec9 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc m\u1eaft m\u00e0 c\u00f2n ng\u0103n ch\u1eb7n nh\u1eefng s\u1ef1 c\u1ed1 ti\u1ec1m \u1ea9n c\u00f3 th\u1ec3 x\u1ea3y ra trong t\u01b0\u01a1ng lai. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng th\u1eddi gian th\u1ef1c ho\u1eb7c h\u1ec7 th\u1ed1ng ph\u1ea3i ch\u1ea1y li\u00ean t\u1ee5c, nh\u01b0 ph\u1ea7n m\u1ec1m qu\u1ea3n l\u00fd nh\u00e0 m\u00e1y ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n giao th\u00f4ng.<\/p>\n<h3><span id=\"23_Tang_Hieu_Suat\"><strong>2.3. T\u0103ng Hi\u1ec7u Su\u1ea5t<\/strong><\/span><\/h3>\n<p>M\u1ed9t s\u1ed1 l\u1ed7i kh\u00f4ng tr\u1ef1c ti\u1ebfp g\u00e2y ra s\u1ef1 c\u1ed1 nh\u01b0ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng kh\u00f4ng hi\u1ec7u qu\u1ea3, v\u00f2ng l\u1eb7p m\u00e3 kh\u00f4ng t\u1ed1i \u01b0u ho\u1eb7c x\u1eed l\u00fd \u0111\u1ed3ng th\u1eddi k\u00e9m. Khi fix-bug, nh\u00e0 ph\u00e1t tri\u1ec3n kh\u00f4ng ch\u1ec9 kh\u1eafc ph\u1ee5c l\u1ed7i m\u00e0 c\u00f2n t\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n, gi\u00fap ph\u1ea7n m\u1ec1m ch\u1ea1y nhanh h\u01a1n, gi\u1ea3m thi\u1ec3u s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean v\u00e0 mang l\u1ea1i tr\u1ea3i nghi\u1ec7m t\u1ed1t h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3><span id=\"24_Nang_Cao_Hinh_Anh_Va_Uy_Tin\"><strong>2.4. N\u00e2ng Cao H\u00ecnh \u1ea2nh V\u00e0 Uy T\u00edn<\/strong><\/span><\/h3>\n<p>Ph\u1ea7n m\u1ec1m c\u00f3 \u00edt l\u1ed7i ho\u1eb7c kh\u00f4ng c\u00f3 l\u1ed7i l\u1edbn th\u1ec3 hi\u1ec7n s\u1ef1 chuy\u00ean nghi\u1ec7p, tr\u00e1ch nhi\u1ec7m c\u1ee7a nh\u00e0 ph\u00e1t tri\u1ec3n. Ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng \u0111\u00e1nh gi\u00e1 cao nh\u1eefng s\u1ea3n ph\u1ea9m mang l\u1ea1i tr\u1ea3i nghi\u1ec7m t\u1ed1t, \u0111i\u1ec1u n\u00e0y gi\u00fap n\u00e2ng cao h\u00ecnh \u1ea3nh c\u1ee7a c\u00f4ng ty. \u0110\u1ed1i v\u1edbi doanh nghi\u1ec7p, vi\u1ec7c fix-bug k\u1ecbp th\u1eddi, hi\u1ec7u qu\u1ea3 c\u00f2n l\u00e0 c\u00e1ch b\u1ea3o v\u1ec7 th\u01b0\u01a1ng hi\u1ec7u, nh\u1ea5t l\u00e0 trong tr\u01b0\u1eddng h\u1ee3p c\u00e1c l\u1ed7i nghi\u00eam tr\u1ecdng c\u00f3 nguy c\u01a1 lan truy\u1ec1n r\u1ed9ng r\u00e3i tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i ho\u1eb7c b\u00e1o ch\u00ed.<\/p>\n<h3><span id=\"25_Tiet_Kiem_Thoi_Gian\"><strong>2.5. Ti\u1ebft Ki\u1ec7m Th\u1eddi Gian<\/strong><\/span><\/h3>\n<p>S\u1eeda l\u1ed7i ngay khi ph\u00e1t hi\u1ec7n gi\u00fap tr\u00e1nh vi\u1ec7c l\u1ed7i nh\u1ecf t\u00edch l\u0169y v\u00e0 ph\u00e1t tri\u1ec3n th\u00e0nh l\u1ed7i l\u1edbn h\u01a1n, g\u00e2y t\u1ed1n k\u00e9m th\u1eddi gian, t\u00e0i nguy\u00ean \u0111\u1ec3 s\u1eeda ch\u1eefa. Quy tr\u00ecnh fix-bug s\u1edbm, k\u1ebft h\u1ee3p v\u1edbi vi\u1ec7c vi\u1ebft c\u00e1c test case ph\u00f9 h\u1ee3p c\u0169ng gi\u1ea3m thi\u1ec3u th\u1eddi gian c\u1ea7n thi\u1ebft \u0111\u1ec3 ki\u1ec3m tra ph\u1ea7n m\u1ec1m sau n\u00e0y, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn v\u1edbi nhi\u1ec1u v\u00f2ng ph\u00e1t tri\u1ec3n.<\/p>\n<h2><span id=\"3_Cach_Ghi_Lai_Bug_Phuc_Vu_Fix-Bug\"><strong>3. C\u00e1ch Ghi L\u1ea1i Bug Ph\u1ee5c V\u1ee5 Fix-Bug<\/strong><\/span><\/h2>\n<figure id=\"attachment_86956\" aria-describedby=\"caption-attachment-86956\" style=\"width: 840px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" class=\"wp-image-86956 size-full\" src=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugging-la-gi.jpg\" alt=\"debugging l\u00e0 g\u00ec\" width=\"840\" height=\"500\" srcset=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugging-la-gi.jpg 840w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugging-la-gi-300x179.jpg 300w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugging-la-gi-150x89.jpg 150w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugging-la-gi-768x457.jpg 768w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><figcaption id=\"caption-attachment-86956\" class=\"wp-caption-text\"><center>C\u00e1ch Ghi L\u1ea1i Bug Ph\u1ee5c V\u1ee5 Fix-Bug<\/center><\/figcaption><\/figure>\n<p>Ghi l\u1ea1i bug hi\u1ec7u qu\u1ea3 l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng gi\u00fap qu\u00e1 tr\u00ecnh fix-bug di\u1ec5n ra nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ghi l\u1ea1i bug ph\u1ee5c v\u1ee5 vi\u1ec7c s\u1eeda l\u1ed7i:<\/p>\n<ul>\n<li aria-level=\"1\">Ghi ch\u00e9p th\u1eddi \u0111i\u1ec3m ch\u00ednh x\u00e1c m\u00e0 b\u1ea1n ph\u00e1t hi\u1ec7n ra bug. \u0110i\u1ec1u n\u00e0y gi\u00fap theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a bug v\u00e0 l\u00e0m n\u1ec1n t\u1ea3ng cho qu\u00e1 tr\u00ecnh s\u1eeda ch\u1eefa.<\/li>\n<li aria-level=\"1\">M\u00f4 t\u1ea3 chi ti\u1ebft v\u1ec1 c\u00e1ch bug x\u1ea3y ra, c\u1ed1 g\u1eafng ch\u1ee5p \u1ea3nh ho\u1eb7c quay video n\u1ebfu c\u00f3 th\u1ec3. Th\u00f4ng tin chi ti\u1ebft n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 b\u1ea1n hi\u1ec3u r\u00f5 v\u1ea5n \u0111\u1ec1 v\u00e0 h\u1ed7 tr\u1ee3 trong qu\u00e1 tr\u00ecnh fix bug.<\/li>\n<li aria-level=\"1\">Khi \u0111\u00e3 s\u1eeda bug, b\u1ea1n ghi l\u1ea1i nguy\u00ean nh\u00e2n ch\u00ednh x\u00e1c g\u00e2y ra l\u1ed7i. Vi\u1ec7c n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n s\u1ef1 t\u00e1i ph\u00e1t hi\u1ec7n c\u1ee7a bug v\u00e0 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng m\u00e3 ngu\u1ed3n.<\/li>\n<li aria-level=\"1\">Ghi l\u1ea1i c\u00e1ch b\u1ea1n \u0111\u00e3 x\u1eed l\u00fd bug v\u00e0 k\u1ebft qu\u1ea3 sau khi s\u1eeda. B\u1ea1n h\u00e3y l\u01b0u tr\u1eef th\u00f4ng tin n\u00e0y v\u00e0o m\u1ed9t file chung c\u1ee7a d\u1ef1 \u00e1n \u0111\u1ec3 d\u1ec5 d\u00e0ng tra c\u1ee9u v\u00e0 chia s\u1ebb kinh nghi\u1ec7m v\u1edbi c\u00e1c th\u00e0nh vi\u00ean kh\u00e1c trong nh\u00f3m.<\/li>\n<\/ul>\n<h2><span id=\"4_Nguyen_Nhan_Xuat_Hien_Bug\"><strong>4. Nguy\u00ean Nh\u00e2n Xu\u1ea5t Hi\u1ec7n Bug<\/strong><\/span><\/h2>\n<p>Vi\u1ec7c xu\u1ea5t hi\u1ec7n bug trong ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb nhi\u1ec1u kh\u00eda c\u1ea1nh kh\u00e1c nhau nh\u01b0:<\/p>\n<h3><span id=\"41_Do_Con_Nguoi\"><strong>4.1. Do Con Ng\u01b0\u1eddi<\/strong><\/span><\/h3>\n<p>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t d\u1eabn \u0111\u1ebfn bug l\u00e0 sai s\u00f3t t\u1eeb con ng\u01b0\u1eddi. Khi <a href=\"https:\/\/jobsgo.vn\/blog\/lap-trinh-vien\/\" target=\"_blank\" rel=\"noopener\"><strong>l\u1eadp tr\u00ecnh vi\u00ean<\/strong><\/a> vi\u1ebft m\u00e3, h\u1ecd c\u00f3 th\u1ec3 m\u1eafc l\u1ed7i logic, sai c\u00fa ph\u00e1p ho\u1eb7c th\u1eadm ch\u00ed qu\u00ean ki\u1ec3m tra c\u00e1c t\u00ecnh hu\u1ed1ng \u0111\u1eb7c bi\u1ec7t trong ch\u01b0\u01a1ng tr\u00ecnh. Ngo\u00e0i ra, \u00e1p l\u1ef1c c\u00f4ng vi\u1ec7c ho\u1eb7c s\u1ef1 thi\u1ebfu kinh nghi\u1ec7m c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 c\u1ea9n th\u1eadn trong c\u00f4ng vi\u1ec7c. Vi\u1ec7c thi\u1ebfu ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7u v\u00e0o c\u1ee7a m\u1ed9t ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i khi ch\u01b0\u01a1ng tr\u00ecnh x\u1eed l\u00fd c\u00e1c gi\u00e1 tr\u1ecb b\u1ea5t ng\u1edd. Nh\u1eefng l\u1ed7i n\u00e0y th\u01b0\u1eddng kh\u00f3 ph\u00e1t hi\u1ec7n v\u00ec ch\u00fang c\u00f3 th\u1ec3 ch\u1ec9 xu\u1ea5t hi\u1ec7n trong nh\u1eefng t\u00ecnh hu\u1ed1ng r\u1ea5t c\u1ee5 th\u1ec3.<\/p>\n<h3><span id=\"42_Qua_Trinh_Trao_Doi_Thong_Tin\"><strong>4.2. Qu\u00e1 Tr\u00ecnh Trao \u0110\u1ed5i Th\u00f4ng Tin<\/strong><\/span><\/h3>\n<p>Giao ti\u1ebfp kh\u00f4ng hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c b\u00ean li\u00ean quan trong d\u1ef1 \u00e1n c\u0169ng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra bug. V\u00ed d\u1ee5, n\u1ebfu y\u00eau c\u1ea7u t\u1eeb kh\u00e1ch h\u00e0ng kh\u00f4ng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 chi ti\u1ebft ho\u1eb7c \u0111\u1ed9i ng\u0169 ph\u00e1t tri\u1ec3n hi\u1ec3u sai \u00fd \u0111\u1ecbnh, ph\u1ea7n m\u1ec1m s\u1ebd kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u00fang nhu c\u1ea7u. Ngo\u00e0i ra, thi\u1ebfu t\u00e0i li\u1ec7u h\u00f3a ho\u1eb7c c\u00e1c cu\u1ed9c h\u1ecdp kh\u00f4ng r\u00f5 r\u00e0ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c tri\u1ec3n khai t\u00ednh n\u0103ng kh\u00f4ng nh\u01b0 k\u1ef3 v\u1ecdng. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p khi ph\u1ea3i s\u1eeda ch\u1eefa v\u00e0 t\u00e1i c\u1ea5u tr\u00fac m\u00e3 ngu\u1ed3n.<\/p>\n<h3><span id=\"43_Ung_Dung_Qua_Phuc_Tap\"><strong>4.3. \u1ee8ng D\u1ee5ng Qu\u00e1 Ph\u1ee9c T\u1ea1p<\/strong><\/span><\/h3>\n<p>Nh\u1eefng h\u1ec7 th\u1ed1ng ph\u1ea7n m\u1ec1m l\u1edbn v\u00e0 ph\u1ee9c t\u1ea1p th\u01b0\u1eddng kh\u00f3 ki\u1ec3m so\u00e1t v\u00e0 d\u1ec5 g\u1eb7p l\u1ed7i h\u01a1n so v\u1edbi nh\u1eefng \u1ee9ng d\u1ee5ng \u0111\u01a1n gi\u1ea3n. Khi m\u1ed9t \u1ee9ng d\u1ee5ng c\u00f3 h\u00e0ng tr\u0103m ngh\u00ecn d\u00f2ng m\u00e3 ho\u1eb7c c\u00f3 nhi\u1ec1u module t\u01b0\u01a1ng t\u00e1c, vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n ho\u1ea1t \u0111\u1ed9ng \u0103n kh\u1edbp l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c. M\u1ed9t thay \u0111\u1ed5i nh\u1ecf trong m\u1ed9t module c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra bug \u1edf c\u00e1c ph\u1ea7n kh\u00e1c n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u1ea9n th\u1eadn. Ngo\u00e0i ra, s\u1ef1 ph\u1ee9c t\u1ea1p c\u00f2n l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng b\u1ecf s\u00f3t l\u1ed7i trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra.<\/p>\n<h3><span id=\"44_Thoi_Gian_Bi_Han_Che\"><strong>4.4. Th\u1eddi Gian B\u1ecb H\u1ea1n Ch\u1ebf<\/strong><\/span><\/h3>\n<p>\u00c1p l\u1ef1c ho\u00e0n th\u00e0nh d\u1ef1 \u00e1n trong th\u1eddi gian ng\u1eafn th\u01b0\u1eddng khi\u1ebfn \u0111\u1ed9i ng\u0169 ph\u00e1t tri\u1ec3n b\u1ecf qua c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng. N\u00f3 d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u00e1t h\u00e0nh ph\u1ea7n m\u1ec1m v\u1edbi nh\u1eefng l\u1ed7i kh\u00f4ng \u0111\u00e1ng c\u00f3. Khi th\u1eddi gian b\u1ecb gi\u1edbi h\u1ea1n, l\u1eadp tr\u00ecnh vi\u00ean th\u01b0\u1eddng ph\u1ea3i vi\u1ebft m\u00e3 nhanh, c\u00f3 th\u1ec3 b\u1ecf qua c\u00e1c nguy\u00ean t\u1eafc l\u1eadp tr\u00ecnh t\u1ed1t ho\u1eb7c kh\u00f4ng ki\u1ec3m tra \u0111\u1ee7 c\u00e1c tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7. H\u1ec7 qu\u1ea3 l\u00e0 bug xu\u1ea5t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m.<\/p>\n<h3><span id=\"45_Ky_Nang_Test_Kem\"><strong>4.5. K\u1ef9 N\u0103ng Test K\u00e9m<\/strong><\/span><\/h3>\n<p>Vi\u1ec7c ki\u1ec3m th\u1eed kh\u00f4ng hi\u1ec7u qu\u1ea3 c\u0169ng g\u00f3p ph\u1ea7n l\u1edbn v\u00e0o vi\u1ec7c bug kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n tr\u01b0\u1edbc khi ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh. N\u1ebfu \u0111\u1ed9i ki\u1ec3m th\u1eed kh\u00f4ng x\u00e2y d\u1ef1ng k\u1ecbch b\u1ea3n ki\u1ec3m th\u1eed \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c kh\u00f4ng t\u1eadp trung v\u00e0o nh\u1eefng t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf, nhi\u1ec1u l\u1ed7i c\u00f3 th\u1ec3 b\u1ecb b\u1ecf s\u00f3t. V\u00ed d\u1ee5, c\u00e1c l\u1ed7i trong \u0111i\u1ec1u ki\u1ec7n bi\u00ean ho\u1eb7c tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7 th\u01b0\u1eddng ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n khi ng\u01b0\u1eddi d\u00f9ng b\u00e1o c\u00e1o, thay v\u00ec \u0111\u01b0\u1ee3c \u0111\u1ed9i ng\u0169 ki\u1ec3m th\u1eed ph\u00e1t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n.<\/p>\n<h3><span id=\"46_Thay_Doi_Yeu_Cau_Lien_Tuc\"><strong>4.6. Thay \u0110\u1ed5i Y\u00eau C\u1ea7u Li\u00ean T\u1ee5c<\/strong><\/span><\/h3>\n<p>Thay \u0111\u1ed5i y\u00eau c\u1ea7u t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng ho\u1eb7c qu\u1ea3n l\u00fd d\u1ef1 \u00e1n trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m th\u01b0\u1eddng g\u00e2y ra s\u1ef1 x\u00e1o tr\u1ed9n l\u1edbn trong m\u00e3 ngu\u1ed3n. Khi m\u1ed9t y\u00eau c\u1ea7u m\u1edbi \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, nh\u1eefng ph\u1ea7n m\u00e3 hi\u1ec7n t\u1ea1i ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u00e0 n\u00f3 c\u00f3 th\u1ec3 l\u00e0m xu\u1ea5t hi\u1ec7n l\u1ed7i kh\u00f4ng mong mu\u1ed1n. Vi\u1ec7c thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean c\u00f2n l\u00e0m cho \u0111\u1ed9i ph\u00e1t tri\u1ec3n kh\u00f4ng c\u00f3 \u0111\u1ee7 th\u1eddi gian \u0111\u1ec3 ki\u1ec3m tra to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, khi\u1ebfn bug tr\u1edf n\u00ean kh\u00f3 tr\u00e1nh kh\u1ecfi.<\/p>\n<h3><span id=\"47_Phien_Ban_Khong_Dong_Nhat\"><strong>4.7. Phi\u00ean B\u1ea3n Kh\u00f4ng \u0110\u1ed3ng Nh\u1ea5t<\/strong><\/span><\/h3>\n<p>Khi nhi\u1ec1u l\u1eadp tr\u00ecnh vi\u00ean c\u00f9ng l\u00e0m vi\u1ec7c tr\u00ean m\u1ed9t d\u1ef1 \u00e1n m\u00e0 kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n t\u1ed1t, c\u00e1c xung \u0111\u1ed9t trong m\u00e3 ngu\u1ed3n d\u1ec5 x\u1ea3y ra. Ch\u1eb3ng h\u1ea1n, m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean ch\u1ec9nh s\u1eeda m\u1ed9t ch\u1ee9c n\u0103ng trong khi ng\u01b0\u1eddi kh\u00e1c \u0111ang s\u1eeda m\u1ed9t ph\u1ea7n li\u00ean quan c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i khi t\u00edch h\u1ee3p m\u00e3. S\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn c\u00e1c bug ph\u1ee9c t\u1ea1p, kh\u00f3 ph\u00e1t hi\u1ec7n v\u00e0 t\u1ed1n nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 s\u1eeda ch\u1eefa.<\/p>\n<h3><span id=\"48_Code_Chua_Hieu_Qua\"><strong>4.8. Code Ch\u01b0a Hi\u1ec7u Qu\u1ea3<\/strong><\/span><\/h3>\n<p>M\u00e3 ngu\u1ed3n kh\u00f4ng \u0111\u01b0\u1ee3c vi\u1ebft t\u1ed1i \u01b0u ho\u1eb7c kh\u00f4ng tu\u00e2n theo c\u00e1c nguy\u00ean t\u1eafc l\u1eadp tr\u00ecnh t\u1ed1t l\u00e0 nguy\u00ean nh\u00e2n ch\u00ednh khi\u1ebfn bug xu\u1ea5t hi\u1ec7n. Nh\u1eefng l\u1ed7i nh\u01b0 tham chi\u1ebfu null, l\u1ed7i tr\u00e0n b\u1ed9 nh\u1edb ho\u1eb7c x\u1eed l\u00fd logic sai c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n n\u1ebfu l\u1eadp tr\u00ecnh vi\u00ean kh\u00f4ng ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng m\u00e3 ngu\u1ed3n. Nh\u1eefng \u0111o\u1ea1n m\u00e3 kh\u00f4ng hi\u1ec7u qu\u1ea3 c\u0169ng d\u1ec5 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t, g\u00e2y ra l\u1ed7i trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u1ea3i cao ho\u1eb7c khi x\u1eed l\u00fd d\u1eef li\u1ec7u l\u1edbn.<\/p>\n<h3><span id=\"49_Dung_Tool_Sai_Cach\"><strong>4.9. D\u00f9ng Tool Sai C\u00e1ch<\/strong><\/span><\/h3>\n<p>S\u1eed d\u1ee5ng sai c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n ho\u1eb7c kh\u00f4ng n\u1eafm r\u00f5 c\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 c\u0169ng d\u1eabn \u0111\u1ebfn bug. V\u00ed d\u1ee5, c\u1ea5u h\u00ecnh sai m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c th\u01b0 vi\u1ec7n kh\u00f4ng t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 l\u00e0m cho h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00fang. Ngo\u00e0i ra, c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a ki\u1ec3m th\u1eed n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 b\u1ecf s\u00f3t c\u00e1c l\u1ed7i quan tr\u1ecdng ho\u1eb7c t\u1ea1o ra k\u1ebft qu\u1ea3 ki\u1ec3m th\u1eed kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n<p><strong>Xem th\u00eam:<\/strong> <a href=\"https:\/\/jobsgo.vn\/blog\/tester-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>Tester l\u00e0 g\u00ec? M\u00f4 t\u1ea3 c\u00f4ng vi\u1ec7c v\u00e0 k\u1ef9 n\u0103ng c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u00e0m Tester<\/strong><\/a><\/p>\n<figure id=\"attachment_86957\" aria-describedby=\"caption-attachment-86957\" style=\"width: 840px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" class=\"wp-image-86957 size-full\" src=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugger-la-gi.jpg\" alt=\"debugger l\u00e0 g\u00ec\" width=\"840\" height=\"500\" srcset=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugger-la-gi.jpg 840w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugger-la-gi-300x179.jpg 300w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugger-la-gi-150x89.jpg 150w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/debugger-la-gi-768x457.jpg 768w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/><figcaption id=\"caption-attachment-86957\" class=\"wp-caption-text\"><center>Nguy\u00ean Nh\u00e2n Xu\u1ea5t Hi\u1ec7n Bug<\/center><\/figcaption><\/figure>\n<h2><span id=\"5_Cac_Loai_Bug_Thuong_Gap\"><strong>5. C\u00e1c Lo\u1ea1i Bug Th\u01b0\u1eddng G\u1eb7p<\/strong><\/span><\/h2>\n<p>C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i bug c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn:<\/p>\n<h3><span id=\"51_Bug_Chuc_Nang\"><strong>5.1. Bug Ch\u1ee9c N\u0103ng<\/strong><\/span><\/h3>\n<p>Bug ch\u1ee9c n\u0103ng l\u00e0 lo\u1ea1i l\u1ed7i xu\u1ea5t hi\u1ec7n khi m\u1ed9t ho\u1eb7c nhi\u1ec1u ch\u1ee9c n\u0103ng c\u1ee7a ph\u1ea7n m\u1ec1m kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang theo y\u00eau c\u1ea7u, m\u00f4 t\u1ea3. Th\u00f4ng th\u01b0\u1eddng, \u0111\u00e2y l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn vi\u1ec7c kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh n\u0103ng c\u01a1 b\u1ea3n, ch\u1ee9c n\u0103ng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00fang c\u00e1ch, kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u00fang v\u1edbi c\u00e1c k\u1ecbch b\u1ea3n s\u1eed d\u1ee5ng,&#8230;<\/p>\n<p>Bug ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111\u00f2i h\u1ecfi s\u1ef1 can thi\u1ec7p c\u1ee7a nh\u00f3m ph\u00e1t tri\u1ec3n \u0111\u1ec3 s\u1eeda ch\u1eefa, \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a ph\u1ea7n m\u1ec1m.<\/p>\n<h3><span id=\"52_Bug_Logic\"><strong>5.2. Bug Logic<\/strong><\/span><\/h3>\n<p>Bug logic x\u1ea3y ra khi lu\u1ed3ng logic ho\u1eb7c thu\u1eadt to\u00e1n c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh sai l\u1ec7ch, d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c. V\u00ed d\u1ee5, m\u1ed9t \u1ee9ng d\u1ee5ng t\u00ednh ti\u1ec1n chi\u1ebft kh\u1ea5u sai ph\u1ea7n tr\u0103m ho\u1eb7c kh\u00f4ng \u00e1p d\u1ee5ng \u0111\u00fang \u0111i\u1ec1u ki\u1ec7n logic cho khuy\u1ebfn m\u00e3i. Nh\u1eefng l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng d\u1ec5 ph\u00e1t hi\u1ec7n ngay l\u1eadp t\u1ee9c, v\u00ec ch\u00fang th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn x\u1eed l\u00fd d\u1eef li\u1ec7u n\u1ed9i b\u1ed9, y\u00eau c\u1ea7u ki\u1ec3m tra k\u1ef9 thu\u1eadt v\u00e0 hi\u1ec3u r\u00f5 h\u1ec7 th\u1ed1ng.<\/p>\n<h3><span id=\"53_Bug_Quy_Trinh_Lam_Viec\"><strong>5.3. Bug Quy Tr\u00ecnh L\u00e0m Vi\u1ec7c<\/strong><\/span><\/h3>\n<p>Bug quy tr\u00ecnh l\u00e0m vi\u1ec7c l\u00e0 l\u1ed7i trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c ho\u1eb7c quy tr\u00ecnh l\u00e0m vi\u1ec7c trong ph\u1ea7n m\u1ec1m. \u0110\u00f3 c\u00f3 th\u1ec3 l\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn thi\u1ebfu s\u00f3t trong c\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c, hi\u1ec3u l\u1ea7m trong quy tr\u00ecnh l\u00e0m vi\u1ec7c ho\u1eb7c s\u1ef1 kh\u00f4ng hi\u1ec7u qu\u1ea3 trong t\u1ed5 ch\u1ee9c c\u00f4ng vi\u1ec7c.<\/p>\n<p>Bug quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 hi\u1ec7u qu\u1ea3 t\u1ed5ng th\u1ec3 c\u1ee7a d\u1ef1 \u00e1n v\u00e0 \u0111\u00f2i h\u1ecfi s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh trong quy tr\u00ecnh l\u00e0m vi\u1ec7c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0, hi\u1ec7u qu\u1ea3. Vi\u1ec7c s\u1eeda ch\u1eefa bug quy tr\u00ecnh l\u00e0m vi\u1ec7c th\u01b0\u1eddng c\u1ea7n s\u1ef1 h\u1ee3p t\u00e1c ch\u1eb7t ch\u1ebd gi\u1eefa c\u00e1c th\u00e0nh vi\u00ean trong nh\u00f3m ph\u00e1t tri\u1ec3n v\u00e0 qu\u1ea3n l\u00fd d\u1ef1 \u00e1n.<\/p>\n<h3><span id=\"54_Bug_Tich_Hop_Cap_He_Thong\"><strong>5.4. Bug T\u00edch H\u1ee3p C\u1ea5p H\u1ec7 Th\u1ed1ng<\/strong><\/span><\/h3>\n<p>Lo\u1ea1i bug n\u00e0y x\u1ea3y ra khi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau c\u1ee7a h\u1ec7 th\u1ed1ng kh\u00f4ng giao ti\u1ebfp ho\u1eb7c t\u01b0\u01a1ng th\u00edch v\u1edbi nhau.Ch\u1eb3ng h\u1ea1n khi m\u1ed9t \u1ee9ng d\u1ee5ng web s\u1eed d\u1ee5ng API nh\u01b0ng kh\u00f4ng x\u1eed l\u00fd \u0111\u00fang ph\u1ea3n h\u1ed3i t\u1eeb API, d\u1eabn \u0111\u1ebfn l\u1ed7i hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u. Nh\u1eefng l\u1ed7i n\u00e0y th\u01b0\u1eddng ph\u1ee9c t\u1ea1p v\u00ec ch\u00fang li\u00ean quan \u0111\u1ebfn nhi\u1ec1u ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u ph\u1ed1i h\u1ee3p gi\u1eefa c\u00e1c nh\u00f3m kh\u00e1c nhau \u0111\u1ec3 s\u1eeda ch\u1eefa.<\/p>\n<h3><span id=\"55_Bug_Cap_Don_Vi\"><strong>5.5. Bug C\u1ea5p \u0110\u01a1n V\u1ecb<\/strong><\/span><\/h3>\n<p>Bug c\u1ea5p \u0111\u01a1n v\u1ecb l\u00e0 lo\u1ea1i l\u1ed7i xu\u1ea5t hi\u1ec7n t\u1ea1i m\u1ee9c \u0111\u01a1n v\u1ecb c\u1ee7a m\u00e3 ngu\u1ed3n, th\u01b0\u1eddng l\u00e0 do l\u1ed7i trong m\u1ed9t h\u00e0m ho\u1eb7c ph\u01b0\u01a1ng th\u1ee9c c\u1ee5 th\u1ec3. Nh\u1eefng l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m sai s\u00f3t trong c\u00fa ph\u00e1p, logic, x\u1eed l\u00fd d\u1eef li\u1ec7u ngay t\u1ea1i n\u01a1i ch\u00fang \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n<p>Bug c\u1ea5p \u0111\u01a1n v\u1ecb th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda ch\u1eefa trong qu\u00e1 tr\u00ecnh ki\u1ec3m th\u1eed unit, n\u01a1i m\u00e0 c\u00e1c \u0111\u01a1n v\u1ecb nh\u1ecf nh\u1ea5t c\u1ee7a m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9c l\u1eadp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u00fang \u0111\u1eafn, \u1ed5n \u0111\u1ecbnh c\u1ee7a t\u1eebng ph\u1ea7n nh\u1ecf trong \u1ee9ng d\u1ee5ng.<\/p>\n<h3><span id=\"56_Bug_Ngoai_Gioi_Han\"><strong>5.6. Bug Ngo\u00e0i Gi\u1edbi H\u1ea1n<\/strong><\/span><\/h3>\n<p>Bug ngo\u00e0i gi\u1edbi h\u1ea1n xu\u1ea5t hi\u1ec7n khi ph\u1ea7n m\u1ec1m ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng ho\u1eb7c t\u1ea3i tr\u1ecdng kh\u00e1c nhau so v\u1edbi m\u00f4i tr\u01b0\u1eddng ki\u1ec3m th\u1eed th\u00f4ng th\u01b0\u1eddng. C\u00e1c l\u1ed7i n\u00e0y th\u01b0\u1eddng kh\u00f4ng th\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n v\u00e0 x\u1ea3y ra khi \u1ee9ng d\u1ee5ng \u0111ang ch\u1ea1y trong c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf.<\/p>\n<p>Bug ngo\u00e0i gi\u1edbi h\u1ea1n \u0111\u00f4i khi \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bug hi\u1ec7u su\u1ea5t. N\u00f3 \u0111\u00f2i h\u1ecfi qu\u00e1 tr\u00ecnh ki\u1ec3m th\u1eed k\u1ef9 l\u01b0\u1ee1ng d\u01b0\u1edbi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1p \u1ee9ng linh ho\u1ea1t c\u1ee7a ph\u1ea7n m\u1ec1m.<\/p>\n<figure id=\"attachment_86958\" aria-describedby=\"caption-attachment-86958\" style=\"width: 800px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" class=\"wp-image-86958 size-full\" src=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/cong-cu-debug-dung-de.jpg\" alt=\"c\u00f4ng c\u1ee5 debug d\u00f9ng \u0111\u1ec3\" width=\"800\" height=\"550\" srcset=\"https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/cong-cu-debug-dung-de.jpg 800w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/cong-cu-debug-dung-de-300x206.jpg 300w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/cong-cu-debug-dung-de-150x103.jpg 150w, https:\/\/media-blog.jobsgo.vn\/blog\/wp-content\/uploads\/2023\/12\/cong-cu-debug-dung-de-768x528.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-86958\" class=\"wp-caption-text\"><center>C\u00e1c Lo\u1ea1i Bug Th\u01b0\u1eddng G\u1eb7p<\/center><\/figcaption><\/figure>\n<h2><span id=\"6_Cach_Fix-bug_Hieu_Qua_Nhat\"><strong>6. C\u00e1ch Fix-bug Hi\u1ec7u Qu\u1ea3 Nh\u1ea5t<\/strong><\/span><\/h2>\n<p>\u0110\u1ec3 s\u1eeda bug m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o v\u00e0 \u00e1p d\u1ee5ng quy tr\u00ecnh sau \u0111\u00e2y:<\/p>\n<h3><span id=\"61_Buoc_1_Tiep_Nhan_Thong_Tin_Ve_Bug\"><strong>6.1. B\u01b0\u1edbc 1: Ti\u1ebfp Nh\u1eadn Th\u00f4ng Tin V\u1ec1 Bug<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">Ngu\u1ed3n th\u00f4ng tin: Bug c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o t\u1eeb ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i, \u0111\u1ed9i ki\u1ec3m th\u1eed ho\u1eb7c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t t\u1ef1 \u0111\u1ed9ng.<\/li>\n<li aria-level=\"1\">M\u00f4 t\u1ea3 bug: Thu th\u1eadp \u0111\u1ea7y \u0111\u1ee7 th\u00f4ng tin nh\u01b0 m\u00f4 t\u1ea3 l\u1ed7i, c\u00e1c b\u01b0\u1edbc t\u00e1i hi\u1ec7n l\u1ed7i, m\u00f4i tr\u01b0\u1eddng (h\u1ec7 \u0111i\u1ec1u h\u00e0nh, phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m) v\u00e0 t\u1ea7m \u1ea3nh h\u01b0\u1edfng.<\/li>\n<li aria-level=\"1\">\u01afu ti\u00ean x\u1eed l\u00fd: \u0110\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng (critical, high, medium, low) \u0111\u1ec3 l\u00ean k\u1ebf ho\u1ea1ch x\u1eed l\u00fd ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n<h3><span id=\"62_Buoc_2_Xac_Nhan_Va_Tai_Tao_Bug\"><strong>6.2. B\u01b0\u1edbc 2: X\u00e1c Nh\u1eadn V\u00e0 T\u00e1i T\u1ea1o Bug<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">M\u1ee5c ti\u00eau: X\u00e1c minh r\u1eb1ng l\u1ed7i th\u1ef1c s\u1ef1 t\u1ed3n t\u1ea1i v\u00e0 c\u00f3 th\u1ec3 t\u00e1i hi\u1ec7n \u0111\u01b0\u1ee3c.<\/li>\n<li aria-level=\"1\">H\u00e0nh \u0111\u1ed9ng: D\u1ef1a tr\u00ean m\u00f4 t\u1ea3, th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra trong m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m ho\u1eb7c t\u01b0\u01a1ng t\u1ef1 v\u1edbi m\u00f4i tr\u01b0\u1eddng ph\u00e1t hi\u1ec7n l\u1ed7i.<\/li>\n<li aria-level=\"1\">K\u1ebft qu\u1ea3: N\u1ebfu bug kh\u00f4ng t\u00e1i t\u1ea1o \u0111\u01b0\u1ee3c, c\u1ea7n y\u00eau c\u1ea7u th\u00f4ng tin chi ti\u1ebft h\u01a1n t\u1eeb ng\u01b0\u1eddi b\u00e1o c\u00e1o.<\/li>\n<\/ul>\n<h3><span id=\"63_Buoc_3_Phan_Tich_Va_Xac_Dinh_Nguyen_Nhan\"><strong>6.3. B\u01b0\u1edbc 3: Ph\u00e2n T\u00edch V\u00e0 X\u00e1c \u0110\u1ecbnh Nguy\u00ean Nh\u00e2n<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">\u0110i\u1ec1u tra l\u1ed7i: D\u1ef1a v\u00e0o log, d\u1eef li\u1ec7u gi\u00e1m s\u00e1t ho\u1eb7c debug \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ph\u1ea7n n\u00e0o trong m\u00e3 ngu\u1ed3n, c\u1ea5u h\u00ecnh ho\u1eb7c m\u00f4i tr\u01b0\u1eddng g\u00e2y ra l\u1ed7i.<\/li>\n<li aria-level=\"1\">Nguy\u00ean nh\u00e2n g\u1ed1c: X\u00e1c \u0111\u1ecbnh r\u00f5 bug ph\u00e1t sinh t\u1eeb logic sai, l\u1ed7i t\u00edch h\u1ee3p, sai c\u00fa ph\u00e1p hay v\u1ea5n \u0111\u1ec1 v\u1ec1 m\u00f4i tr\u01b0\u1eddng (nh\u01b0 phi\u00ean b\u1ea3n kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t).<\/li>\n<li aria-level=\"1\">\u01afu ti\u00ean: \u0110\u1ea3m b\u1ea3o kh\u00f4ng ch\u1ec9 kh\u1eafc ph\u1ee5c tri\u1ec7u ch\u1ee9ng m\u00e0 c\u00f2n x\u1eed l\u00fd nguy\u00ean nh\u00e2n g\u1ed1c \u0111\u1ec3 tr\u00e1nh l\u1ed7i t\u00e1i ph\u00e1t.<\/li>\n<\/ul>\n<h3><span id=\"64_Buoc_4_Tien_Hanh_Fix-Bug\"><strong>6.4. B\u01b0\u1edbc 4: Ti\u1ebfn H\u00e0nh Fix-Bug<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">Ch\u1ec9nh s\u1eeda m\u00e3: S\u1eeda \u0111o\u1ea1n m\u00e3 li\u00ean quan ho\u1eb7c c\u1ea5u h\u00ecnh h\u1ec7 th\u1ed1ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1.<\/li>\n<li aria-level=\"1\">Vi\u1ebft unit test: Th\u00eam test case \u0111\u1ec3 ki\u1ec3m tra l\u1ed7i \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c v\u00e0 tr\u00e1nh t\u00e1i xu\u1ea5t hi\u1ec7n.<\/li>\n<li aria-level=\"1\">Xem x\u00e9t \u0111\u1ed3ng nghi\u1ec7p: Y\u00eau c\u1ea7u \u0111\u1ed3ng nghi\u1ec7p (peer review) ki\u1ec3m tra \u0111o\u1ea1n m\u00e3 s\u1eeda \u0111\u1ed5i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng ph\u00e1t sinh l\u1ed7i m\u1edbi.<\/li>\n<\/ul>\n<h3><span id=\"65_Buoc_5_Kiem_Tra_Lai_Sau_Khi_Fix-Bug\"><strong>6.5. B\u01b0\u1edbc 5: Ki\u1ec3m Tra L\u1ea1i Sau Khi Fix-Bug<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">T\u00e1i t\u1ea1o l\u1ed7i: Th\u1ef1c hi\u1ec7n l\u1ea1i c\u00e1c b\u01b0\u1edbc t\u00e1i hi\u1ec7n bug \u0111\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng l\u1ed7i \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c.<\/li>\n<li aria-level=\"1\">Ki\u1ec3m tra li\u00ean quan: Ki\u1ec3m tra c\u00e1c ph\u1ea7n kh\u00e1c c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1eeda l\u1ed7i kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng li\u00ean quan (regression testing).<\/li>\n<li aria-level=\"1\">M\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf: \u0110\u1ea3m b\u1ea3o fix-bug ho\u1ea1t \u0111\u1ed9ng t\u1ed1t tr\u00ean m\u00f4i tr\u01b0\u1eddng th\u1ef1c t\u1ebf (staging ho\u1eb7c production).<\/li>\n<\/ul>\n<h3><span id=\"66_Buoc_6_Trien_Khai_Va_Theo_Doi_Fix-Bug\"><strong>6.6. B\u01b0\u1edbc 6: Tri\u1ec3n Khai V\u00e0 Theo D\u00f5i Fix-Bug<\/strong><\/span><\/h3>\n<ul>\n<li aria-level=\"1\">Tri\u1ec3n khai: \u0110\u01b0a b\u1ea3n s\u1eeda l\u1ed7i l\u00ean m\u00f4i tr\u01b0\u1eddng production theo quy tr\u00ecnh CI\/CD.<\/li>\n<li aria-level=\"1\">Gi\u00e1m s\u00e1t: Theo d\u00f5i h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n b\u1ea5t k\u1ef3 v\u1ea5n \u0111\u1ec1 ph\u00e1t sinh n\u00e0o sau khi tri\u1ec3n khai.<\/li>\n<li aria-level=\"1\">Ph\u1ea3n h\u1ed3i: Th\u00f4ng b\u00e1o cho \u0111\u1ed9i ng\u0169 li\u00ean quan ho\u1eb7c kh\u00e1ch h\u00e0ng v\u1ec1 vi\u1ec7c l\u1ed7i \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c, \u0111\u1ed3ng th\u1eddi ghi nh\u1eadn l\u1ea1i quy tr\u00ecnh \u0111\u1ec3 c\u1ea3i thi\u1ec7n h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/jobsgo.vn\/blog\/fix-bug-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>Fix-bug l\u00e0 g\u00ec<\/strong><\/a>? Fix-bug kh\u00f4ng ch\u1ec9 l\u00e0 vi\u1ec7c s\u1eeda l\u1ed7i m\u00e0 c\u00f2n l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a chu k\u1ef3 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. B\u1eb1ng c\u00e1ch n\u00e0y, nh\u00f3m ph\u00e1t tri\u1ec3n kh\u00f4ng ch\u1ec9 c\u1ea3i thi\u1ec7n t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a s\u1ea3n ph\u1ea9m m\u00e0 c\u00f2n n\u00e2ng cao s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i c\u00f9ng. Hy v\u1ecdng b\u00e0i vi\u1ebft tr\u00ean s\u1ebd h\u1eefu \u00edch v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c b\u1ea1n. N\u1ebfu c\u00f2n b\u1ea5t k\u1ef3 th\u1eafc m\u1eafc n\u00e0o, \u0111\u1eebng ng\u1ea7n ng\u1ea1i \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn ph\u00eda d\u01b0\u1edbi \u0111\u1ec3 <a href=\"https:\/\/jobsgo.vn\/\" target=\"_blank\" rel=\"noopener\"><strong>JobsGO<\/strong><\/a> gi\u1ea3i \u0111\u00e1p nh\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u00e1nh gi\u00e1 post Fix-bug l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, khi m\u00e0 c\u00e1c l\u1ed7i, v\u1ea5n \u0111\u1ec1 xu\u1ea5t hi\u1ec7n trong m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n v\u00e0 s\u1eeda ch\u1eefa. N\u00f3 \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i&#8230;<\/p>\n","protected":false},"author":43,"featured_media":86955,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"fix bug l\u00e0 g\u00ec","_yoast_wpseo_title":"Fix-bug L\u00e0 G\u00ec? 6 B\u01b0\u1edbc Fix-bug Hi\u1ec7u Qu\u1ea3 Nh\u1ea5t %%sep%% %%sitename%%","_yoast_wpseo_metadesc":"Fix-bug l\u00e0 g\u00ec? Fix-bug c\u00f3 l\u1ee3i \u00edch g\u00ec? C\u00f3 nh\u1eefng lo\u1ea1i bug n\u00e0o? \u0110\u00e2u l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra bug? Tham kh\u1ea3o ngay 6 b\u01b0\u1edbc fix-bug chuy\u00ean nghi\u1ec7p, hi\u1ec7u qu\u1ea3 nh\u1ea5t!","_yoast_wpseo_focus_keyphrase":"","faq":"1. Debug L\u00e0 G\u00ec?\r\n\r\nDebug l\u00e0 qu\u00e1 tr\u00ecnh ki\u1ec3m tra, ph\u00e2n t\u00edch, s\u1eeda l\u1ed7i trong m\u00e3 ngu\u1ed3n ph\u1ea7n m\u1ec1m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang v\u00e0 hi\u1ec7u qu\u1ea3.\r\n\r\n2. Debugging L\u00e0 G\u00ec?\r\n\r\nDebugging l\u00e0 qu\u00e1 tr\u00ecnh t\u00ecm v\u00e0 s\u1eeda l\u1ed7i (bug) trong ph\u1ea7n m\u1ec1m ho\u1eb7c ch\u01b0\u01a1ng tr\u00ecnh m\u00e1y t\u00ednh. Khi ph\u1ea7n m\u1ec1m kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 mong \u0111\u1ee3i ho\u1eb7c g\u1eb7p s\u1ef1 c\u1ed1, c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean s\u1eed d\u1ee5ng debugging \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u00e2y l\u1ed7i v\u00e0 kh\u1eafc ph\u1ee5c ch\u00fang.\r\n\r\n3. Debugger L\u00e0 G\u00ec?\r\n\r\nDebugger l\u00e0 c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh vi\u00ean trong vi\u1ec7c debugging. C\u00f4ng c\u1ee5 debug d\u00f9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n, ph\u00e2n t\u00edch c\u00e1c l\u1ed7i trong ph\u1ea7n m\u1ec1m th\u00f4ng qua c\u00e1c t\u00ednh n\u0103ng nh\u01b0 d\u1eebng ch\u01b0\u01a1ng tr\u00ecnh t\u1ea1i \u0111i\u1ec3m l\u1ed7i (breakpoints), theo d\u00f5i gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c bi\u1ebfn, ki\u1ec3m tra lu\u1ed3ng ch\u01b0\u01a1ng tr\u00ecnh.\r\n\r\n4. Bug B\u1ea5t Ng\u1edd L\u00e0 G\u00ec?\r\n\r\nBug b\u1ea5t ng\u1edd l\u00e0 nh\u1eefng l\u1ed7i xu\u1ea5t hi\u1ec7n m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c d\u1ef1 \u0111o\u00e1n ho\u1eb7c ph\u00e1t hi\u1ec7n trong qu\u00e1 tr\u00ecnh ki\u1ec3m th\u1eed tr\u01b0\u1edbc.\r\n\r\n5. Bug Kh\u1ee7ng L\u00e0 G\u00ec?\r\n\r\nBug kh\u1ee7ng (critical bug) l\u00e0 m\u1ed9t lo\u1ea1i bug c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh ho\u1eb7c ch\u1ee9c n\u0103ng c\u1ee7a ph\u1ea7n m\u1ec1m. \u0110\u00e2y l\u00e0 nh\u1eefng l\u1ed7i c\u1ea7n \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cao v\u00e0 s\u1eeda ngay l\u1eadp t\u1ee9c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng, hi\u1ec7u su\u1ea5t c\u1ee7a \u1ee9ng d\u1ee5ng.\r\n","nganh_nghe_chuc_vu_lien_quan":["Nh\u00e2n Vi\u00ean C\u00f4ng Ngh\u1ec7 Th\u00f4ng Tin","K\u1ef9 S\u01b0 C\u00f4ng Ngh\u1ec7 Th\u00f4ng Tin","Chuy\u00ean Vi\u00ean C\u00f4ng Ngh\u1ec7 Th\u00f4ng Tin"]},"categories":[7],"tags":[],"yoast_head":"\n<title>Fix-bug L\u00e0 G\u00ec? 6 B\u01b0\u1edbc Fix-bug Hi\u1ec7u Qu\u1ea3 Nh\u1ea5t - JobsGO Blog<\/title>\n<meta name=\"description\" content=\"Fix-bug l\u00e0 g\u00ec? Fix-bug c\u00f3 l\u1ee3i \u00edch g\u00ec? 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