{"id":11029,"date":"2026-03-09T17:07:13","date_gmt":"2026-03-09T09:07:13","guid":{"rendered":"https:\/\/www.archimetric.com\/vn\/what-is-sequence-diagram\/"},"modified":"2026-03-09T17:07:13","modified_gmt":"2026-03-09T09:07:13","slug":"what-is-sequence-diagram","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/vn\/what-is-sequence-diagram\/","title":{"rendered":"S\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 l\u00e0 g\u00ec"},"content":{"rendered":"<div class=\"tutorial-info\">C\u1ea3 hai <a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp#:~:text=A%20sequence%20diagram%20is%20an,the%20functionality%20of%20the%20scenario.\">s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1<\/a> v\u00e0 s\u01a1 \u0111\u1ed3 h\u1ee3p t\u00e1c l\u00e0 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c. S\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c t\u1eadp trung v\u00e0o quan \u0111i\u1ec3m \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. M\u1ed9t <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1<\/a> l\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 t\u01b0\u01a1ng t\u00e1c nh\u1ea5n m\u1ea1nh th\u1ee9 t\u1ef1 th\u1eddi gian c\u1ee7a c\u00e1c tin nh\u1eafn. N\u00f3 m\u00f4 t\u1ea3 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 l\u1edbp tham gia v\u00e0o t\u00ecnh hu\u1ed1ng v\u00e0 tr\u00ecnh t\u1ef1 c\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c trao \u0111\u1ed5i gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng c\u1ee7a t\u00ecnh hu\u1ed1ng. Th\u00f4ng th\u01b0\u1eddng, b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh lu\u1ed3ng ch\u00ednh c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a s\u01a1 \u0111\u1ed3 \u0111\u00f3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c lu\u1ed3ng ngo\u1ea1i l\u1ec7 c\u1ee7a m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/div>\n<div><\/div>\n<div><img alt=\"Sequence Diagram, UML Diagrams Example: Break Communication Fragment - Visual Paradigm Community Circle\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png\"\/><\/div>\n<div class=\"tutorial-comment-header\"><\/div>\n<div class=\"content-tutorial\">\n<hr\/>\n<h2>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1<\/h2>\n<h3 class=\"h2\">\u0110\u1ed1i t\u01b0\u1ee3ng<\/h3>\n<p>Trong UML, m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng trong s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng h\u00ecnh ch\u1eef nh\u1eadt ch\u1ee9a t\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c g\u1ea1ch ch\u00e2n. M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean theo m\u1ed9t trong ba c\u00e1ch: t\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng, t\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 l\u1edbp c\u1ee7a n\u00f3, ho\u1eb7c ch\u1ec9 t\u00ean l\u1edbp (\u0111\u1ed1i t\u01b0\u1ee3ng \u1ea9n danh). Ba c\u00e1ch \u0111\u1eb7t t\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong h\u00ecnh b\u00ean d\u01b0\u1edbi.<\/p>\n<h3 class=\"h2\">D\u00e2y s\u1ed1ng<\/h3>\n<p>C\u00e1c th\u1ef1c th\u1ec3 c\u1ee7a c\u00e1c th\u00e0nh vi\u00ean tham gia v\u00e0o m\u1ed9t h\u1ee3p t\u00e1c (t\u00ecnh hu\u1ed1ng) \u0111\u01b0\u1ee3c vi\u1ebft theo chi\u1ec1u ngang \u1edf ph\u00eda tr\u00ean s\u01a1 \u0111\u1ed3. M\u1ed9t d\u00e2y s\u1ed1ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t \u0111\u1ee9ng \u0111\u01b0\u1ee3c v\u1ebd ph\u00eda d\u01b0\u1edbi m\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng. Nh\u1eefng \u0111\u01b0\u1eddng n\u00e0y cho th\u1ea5y s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng.<\/p>\n<p><img alt=\"Lifelines\" decoding=\"async\" height=\"151\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/01-lifelines.png\" width=\"293\"\/><\/p>\n<p>T\u00ean \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: myAccount) ho\u1eb7c c\u00f3 th\u1ec3 chung (v\u00ed d\u1ee5: myAccount :Account). Th\u01b0\u1eddng xuy\u00ean, m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng \u1ea9n danh (:Account) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 bi\u1ec3u di\u1ec5n b\u1ea5t k\u1ef3 \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o trong l\u1edbp. M\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng c\u0169ng c\u00f3 th\u1eddi gian s\u1ed1ng c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t ph\u00eda d\u01b0\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c tin nh\u1eafn gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c m\u0169i t\u00ean ch\u1ec9 t\u1eeb \u0111\u1ed1i t\u01b0\u1ee3ng g\u1eedi \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn.<\/p>\n<p>M\u1ecdi th\u1ee9 trong m\u1ed9t h\u1ec7 th\u1ed1ng h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ea3m nh\u1eadn tr\u00e1ch nhi\u1ec7m v\u1ec1 c\u00e1c vi\u1ec7c nh\u01b0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u, di chuy\u1ec3n d\u1eef li\u1ec7u trong h\u1ec7 th\u1ed1ng, ph\u1ea3n h\u1ed3i c\u00e1c y\u00eau c\u1ea7u v\u00e0 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0m vi\u1ec7c c\u00f9ng nhau b\u1eb1ng c\u00e1ch giao ti\u1ebfp ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau.<\/p>\n<h3 class=\"h2\">Tin nh\u1eafn<\/h3>\n<p>C\u00e1c tin nh\u1eafn th\u1ec3 hi\u1ec7n vi\u1ec7c g\u1ecdi c\u00e1c thao t\u00e1c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb theo chi\u1ec1u ngang. Ch\u00fang \u0111\u01b0\u1ee3c v\u1ebd t\u1eeb \u0111\u1ed1i t\u01b0\u1ee3ng g\u1eedi \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn. Th\u1ee9 t\u1ef1 \u0111\u01b0\u1ee3c ch\u1ec9 ra b\u1eb1ng v\u1ecb tr\u00ed theo chi\u1ec1u d\u1ecdc, v\u1edbi tin nh\u1eafn \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf ph\u00eda tr\u00ean s\u01a1 \u0111\u1ed3, v\u00e0 tin nh\u1eafn cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb \u1edf ph\u00eda d\u01b0\u1edbi. Do \u0111\u00f3, s\u1ed1 th\u1ee9 t\u1ef1 l\u00e0 t\u00f9y ch\u1ecdn.<\/p>\n<p>Lo\u1ea1i \u0111\u01b0\u1eddng v\u00e0 lo\u1ea1i \u0111\u1ea7u m\u0169i t\u00ean cho th\u1ea5y lo\u1ea1i tin nh\u1eafn \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng:<\/p>\n<ol class=\"contentList\">\n<li>M\u1ed9t <b>tin nh\u1eafn \u0111\u1ed3ng b\u1ed9<\/b> (th\u01b0\u1eddng l\u00e0 m\u1ed9t l\u1eddi g\u1ecdi thao t\u00e1c) \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng li\u1ec1n c\u00f3 \u0111\u1ea7u m\u0169i t\u00ean \u0111\u1ea7y. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1eddi g\u1ecdi tin nh\u1eafn th\u00f4ng th\u01b0\u1eddng d\u00f9ng cho giao ti\u1ebfp b\u00ecnh th\u01b0\u1eddng gi\u1eefa ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn.<br \/>\n<img alt=\"Lifelines with synchronous message\" decoding=\"async\" height=\"151\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/02-lifelines-with-synchronous-message.png\" width=\"223\"\/><\/li>\n<li>M\u1ed9t <b>tin nh\u1eafn tr\u1ea3 v\u1ec1<\/b> s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean h\u1edf.<br \/>\n<img alt=\"Lifelines with return message\" decoding=\"async\" height=\"151\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/03-lifelines-with-return-message.png\" width=\"223\"\/><\/li>\n<li>M\u1ed9t <b>tin nh\u1eafn b\u1ea5t \u0111\u1ed3ng b\u1ed9<\/b> c\u00f3 \u0111\u01b0\u1eddng li\u1ec1n v\u1edbi \u0111\u1ea7u m\u0169i t\u00ean h\u1edf. M\u1ed9t t\u00edn hi\u1ec7u l\u00e0 m\u1ed9t tin nh\u1eafn b\u1ea5t \u0111\u1ed3ng b\u1ed9 kh\u00f4ng c\u00f3 ph\u1ea3n h\u1ed3i.<br \/>\n<img alt=\"Lifelines with asynchronous\" decoding=\"async\" height=\"151\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/04-lifelines-with-asynchronous-message.png\" width=\"223\"\/><\/li>\n<\/ol>\n<h3 class=\"h3\">Tin nh\u1eafn t\u1ea1o v\u00e0 h\u1ee7y<\/h3>\n<p>C\u00e1c th\u00e0nh vi\u00ean kh\u00f4ng nh\u1ea5t thi\u1ebft t\u1ed3n t\u1ea1i trong su\u1ed1t to\u00e0n b\u1ed9 th\u1eddi gian t\u01b0\u01a1ng t\u00e1c c\u1ee7a s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1. C\u00e1c th\u00e0nh vi\u00ean c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra v\u00e0 h\u1ee7y b\u1ecf t\u00f9y theo c\u00e1c tin nh\u1eafn \u0111ang \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i.<\/p>\n<p>M\u1ed9t <b>tin nh\u1eafn t\u1ea1o<\/b> t\u1ea1o ra \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn. Ng\u01b0\u1eddi g\u1eedi \u0111\u00e3 t\u1ed3n t\u1ea1i t\u1eeb \u0111\u1ea7u t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf ph\u00eda tr\u00ean s\u01a1 \u0111\u1ed3. C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00edch \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh t\u01b0\u01a1ng t\u00e1c nh\u1edd l\u1eddi g\u1ecdi t\u1ea1o s\u1ebd \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng \u0111\u1eb7t \u1edf ph\u00eda d\u01b0\u1edbi s\u01a1 \u0111\u1ed3.<\/p>\n<p><img alt=\"Lifelines with constructor\" decoding=\"async\" height=\"205\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/05-lifelines-with-constructor.png\" width=\"223\"\/>A<\/p>\n<p><b>tin nh\u1eafn h\u1ee7y<\/b>h\u1ee7y \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn. C\u00f3 nh\u1eefng c\u00e1ch kh\u00e1c \u0111\u1ec3 ch\u1ec9 ra r\u1eb1ng m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng m\u1ee5c ti\u00eau b\u1ecb h\u1ee7y trong qu\u00e1 tr\u00ecnh t\u01b0\u01a1ng t\u00e1c. Ch\u1ec9 khi h\u1ee7y \u0111\u1ed1i t\u01b0\u1ee3ng m\u1ee5c ti\u00eau \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh &#8216;sau destructor&#8217; th\u00ec b\u1ea1n m\u1edbi c\u1ea7n s\u1eed d\u1ee5ng destructor.<\/p>\n<p><img alt=\"Lifelines with destructor\" decoding=\"async\" height=\"151\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/06-lifelines-with-desstructor.png\" width=\"223\"\/><\/p>\n<h3 class=\"h3\">Tin nh\u1eafn kh\u00f4ng t\u1ee9c th\u1eddi<\/h3>\n<p>C\u00e1c tin nh\u1eafn th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ee9c th\u1eddi, do \u0111\u00f3 th\u1eddi gian \u0111\u1ec3 \u0111\u1ebfn \u0111\u01b0\u1ee3c ng\u01b0\u1eddi nh\u1eadn l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3. C\u00e1c tin nh\u1eafn \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng m\u0169i t\u00ean ngang. \u0110\u1ec3 ch\u1ec9 ra r\u1eb1ng m\u1ea5t m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh tr\u01b0\u1edbc khi ng\u01b0\u1eddi nh\u1eadn th\u1ef1c s\u1ef1 nh\u1eadn \u0111\u01b0\u1ee3c tin nh\u1eafn, m\u1ed9t<b>m\u0169i t\u00ean xi\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/b>.<\/p>\n<p><img alt=\"Lifelines with instantaneous message\" decoding=\"async\" height=\"182\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/07-lifelines-with-instantaneous-message.png\" width=\"223\"\/><\/p>\n<h3 class=\"h2\">T\u1eadp trung ki\u1ec3m so\u00e1t<\/h3>\n<p>T\u1eadp trung ki\u1ec3m so\u00e1t bi\u1ec3u th\u1ecb kho\u1ea3ng th\u1eddi gian m\u00e0 m\u1ed9t ph\u1ea7n t\u1eed \u0111ang th\u1ef1c hi\u1ec7n m\u1ed9t thao t\u00e1c. Ph\u1ea7n tr\u00ean v\u00e0 ph\u1ea7n d\u01b0\u1edbi c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh v\u1edbi th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u v\u00e0 th\u1eddi \u0111i\u1ec3m ho\u00e0n th\u00e0nh t\u01b0\u01a1ng \u1ee9ng<\/p>\n<h3 class=\"h2\">K\u00fd hi\u1ec7u l\u1eb7p<\/h3>\n<p><b>K\u00fd hi\u1ec7u l\u1eb7p<\/b>bi\u1ec3u th\u1ecb r\u1eb1ng m\u1ed9t tin nh\u1eafn \u0111\u01b0\u1ee3c g\u1eedi nhi\u1ec1u l\u1ea7n \u0111\u1ebfn nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng nh\u1eadn, nh\u01b0 tr\u01b0\u1eddng h\u1ee3p b\u1ea1n \u0111ang l\u1eb7p qua m\u1ed9t t\u1eadp h\u1ee3p. B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb c\u01a1 s\u1edf c\u1ee7a vi\u1ec7c l\u1eb7p trong d\u1ea5u ngo\u1eb7c vu\u00f4ng, ch\u1eb3ng h\u1ea1n nh\u01b0 *[cho t\u1ea5t c\u1ea3 c\u00e1c d\u00f2ng \u0111\u01a1n h\u00e0ng].<\/p>\n<h2 class=\"h2\">V\u00ed d\u1ee5: \u0110\u1eb7t h\u00e0ng<\/h2>\n<p>V\u00ed d\u1ee5 n\u00e0y hi\u1ec3n th\u1ecb m\u1ed9t s\u01a1 \u0111\u1ed3 chu\u1ed7i v\u1edbi ba \u0111\u1ed1i t\u01b0\u1ee3ng tham gia: Kh\u00e1ch h\u00e0ng, \u0110\u01a1n h\u00e0ng v\u00e0 Kho. Ngay c\u1ea3 khi ch\u01b0a bi\u1ebft r\u00f5 k\u00fd hi\u1ec7u m\u1ed9t c\u00e1ch ch\u00ednh th\u1ee9c, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 h\u00ecnh dung kh\u00e1 r\u00f5 r\u00e0ng v\u1ec1 nh\u1eefng g\u00ec \u0111ang di\u1ec5n ra.<\/p>\n<ol class=\"contentPoint\">\n<li>B\u01b0\u1edbc 1 v\u00e0 2: Kh\u00e1ch h\u00e0ng t\u1ea1o m\u1ed9t \u0111\u01a1n h\u00e0ng.<\/li>\n<li>B\u01b0\u1edbc 3: Kh\u00e1ch h\u00e0ng th\u00eam c\u00e1c m\u1eb7t h\u00e0ng v\u00e0o \u0111\u01a1n h\u00e0ng.<\/li>\n<li>B\u01b0\u1edbc 4, 5: M\u1ed7i m\u1eb7t h\u00e0ng \u0111\u01b0\u1ee3c ki\u1ec3m tra xem c\u00f3 s\u1eb5n trong kho hay kh\u00f4ng.<\/li>\n<li>B\u01b0\u1edbc 6, 7, 8: N\u1ebfu s\u1ea3n ph\u1ea9m c\u00f3 s\u1eb5n, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u01a1n h\u00e0ng.<\/li>\n<li>B\u01b0\u1edbc 9 tr\u1ea3 v\u1ec1<\/li>\n<li>B\u01b0\u1edbc 10, 11: l\u01b0u v\u00e0 h\u1ee7y \u0111\u01a1n h\u00e0ng<\/li>\n<\/ol>\n<p><img alt=\"Sequence Diagram example\" decoding=\"async\" height=\"616\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/08-sequence-diagram-example.png\" width=\"735\"\/><\/p>\n<h3 class=\"h2\">C\u00e1c \u0111o\u1ea1n chu\u1ed7i<\/h3>\n<p>Trong s\u01a1 \u0111\u1ed3 chu\u1ed7i UML, c\u00e1c \u0111o\u1ea1n k\u1ebft h\u1ee3p cho ph\u00e9p b\u1ea1n hi\u1ec3n th\u1ecb c\u00e1c v\u00f2ng l\u1eb7p, nh\u00e1nh v\u00e0 c\u00e1c l\u1ef1a ch\u1ecdn kh\u00e1c. M\u1ed9t \u0111o\u1ea1n k\u1ebft h\u1ee3p bao g\u1ed3m m\u1ed9t ho\u1eb7c nhi\u1ec1u to\u00e1n h\u1ea1ng t\u01b0\u01a1ng t\u00e1c, v\u00e0 m\u1ed7i to\u00e1n h\u1ea1ng n\u00e0y bao g\u1ed3m m\u1ed9t ho\u1eb7c nhi\u1ec1u tin nh\u1eafn, s\u1eed d\u1ee5ng t\u01b0\u01a1ng t\u00e1c ho\u1eb7c c\u00e1c \u0111o\u1ea1n k\u1ebft h\u1ee3p kh\u00e1c.<\/p>\n<p>M\u1ed9t \u0111o\u1ea1n chu\u1ed7i \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u1ed9p g\u1ecdi l\u00e0 \u0111o\u1ea1n k\u1ebft h\u1ee3p, bao g\u1ed3m m\u1ed9t ph\u1ea7n t\u01b0\u01a1ng t\u00e1c trong s\u01a1 \u0111\u1ed3 chu\u1ed7i. To\u00e1n t\u1eed \u0111o\u1ea1n (\u1edf g\u00f3c tr\u00ean b\u00ean tr\u00e1i) ch\u1ec9 ra lo\u1ea1i \u0111o\u1ea1n. C\u00e1c lo\u1ea1i \u0111o\u1ea1n bao g\u1ed3m ref, assert, loop, break, alt, opt v\u00e0 neg, ref, sd.<\/p>\n<h2>T\u00f3m t\u1eaft k\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 chu\u1ed7i<\/h2>\n<table border=\"1\">\n<tbody>\n<tr>\n<td width=\"150\"><b>To\u00e1n t\u1eed<\/b><\/td>\n<td><b>\u00dd ngh\u0129a<\/b><\/td>\n<\/tr>\n<tr>\n<td>alt<\/td>\n<td><b>C\u00e1c \u0111o\u1ea1n thay th\u1ebf nhi\u1ec1u \u0111o\u1ea1n: ch\u1ec9 \u0111o\u1ea1n n\u00e0o c\u00f3 \u0111i\u1ec1u ki\u1ec7n \u0111\u00fang s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c thi.<\/b><\/td>\n<\/tr>\n<tr>\n<td>opt<\/td>\n<td><b>T\u00f9y ch\u1ecdn<\/b>: \u0111o\u1ea1n m\u00e3 ch\u1ec9 \u0111\u01b0\u1ee3c th\u1ef1c thi n\u1ebfu \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p l\u00e0 \u0111\u00fang. T\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u1ed9t alt ch\u1ec9 c\u00f3 m\u1ed9t lu\u1ed3ng.<\/td>\n<\/tr>\n<tr>\n<td>par<\/td>\n<td><b>Song song<\/b>: m\u1ed7i \u0111o\u1ea1n \u0111\u01b0\u1ee3c th\u1ef1c thi \u0111\u1ed3ng th\u1eddi.<\/td>\n<\/tr>\n<tr>\n<td>loop<\/td>\n<td><b>V\u00f2ng l\u1eb7p<\/b>: \u0111o\u1ea1n m\u00e3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c thi nhi\u1ec1u l\u1ea7n, v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 x\u00e1c \u0111\u1ecbnh c\u01a1 s\u1edf l\u1eb7p l\u1ea1i.<\/td>\n<\/tr>\n<tr>\n<td>critical<\/td>\n<td><b>V\u00f9ng nghi\u00eam ng\u1eb7t<\/b>: \u0111o\u1ea1n m\u00e3 ch\u1ec9 c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t lu\u1ed3ng th\u1ef1c thi t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/td>\n<\/tr>\n<tr>\n<td>neg<\/td>\n<td><b>Ti\u00eau c\u1ef1c<\/b>: \u0111o\u1ea1n m\u00e3 hi\u1ec3n th\u1ecb m\u1ed9t t\u01b0\u01a1ng t\u00e1c kh\u00f4ng h\u1ee3p l\u1ec7.<\/td>\n<\/tr>\n<tr>\n<td>ref<\/td>\n<td><b>Tham chi\u1ebfu<\/b>: tham chi\u1ebfu \u0111\u1ebfn m\u1ed9t t\u01b0\u01a1ng t\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a tr\u00ean s\u01a1 \u0111\u1ed3 kh\u00e1c. Khung \u0111\u01b0\u1ee3c v\u1ebd \u0111\u1ec3 bao ph\u1ee7 c\u00e1c \u0111\u01b0\u1eddng \u0111\u1eddi tham gia v\u00e0o t\u01b0\u01a1ng t\u00e1c. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecbnh ngh\u0129a tham s\u1ed1 v\u00e0 gi\u00e1 tr\u1ecb tr\u1ea3 v\u1ec1.<\/td>\n<\/tr>\n<tr>\n<td>sd<\/td>\n<td><b>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/b>: \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bao quanh to\u00e0n b\u1ed9 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\"h3\">V\u00ed d\u1ee5 \u0096 T\u00ecnh hu\u1ed1ng \u0110\u1eb7t h\u00e0ng<\/h2>\n<p>M\u1ed9t th\u00e0nh vi\u00ean c\u1ee7a m\u1ed9t t\u00e0u mu\u1ed1n \u0111\u1eb7t h\u00e0ng tr\u1ef1c tuy\u1ebfn. H\u00e0ng h\u00f3a \u0111\u01b0\u1ee3c \u0111\u1eb7t s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn th\u00e0nh vi\u00ean th\u00f4ng qua d\u1ecbch v\u1ee5 chuy\u1ec3n ph\u00e1t nhanh ho\u1eb7c b\u01b0u \u0111i\u1ec7n th\u01b0\u1eddng t\u00f9y theo tr\u1ea1ng th\u00e1i th\u00e0nh vi\u00ean (VIP, th\u00e0nh vi\u00ean th\u01b0\u1eddng). T\u00f9y ch\u1ecdn, c\u1eeda h\u00e0ng s\u1ebd g\u1eedi cho th\u00e0nh vi\u00ean th\u00f4ng b\u00e1o x\u00e1c nh\u1eadn n\u1ebfu th\u00e0nh vi\u00ean \u0111\u00e3 ch\u1ecdn t\u00f9y ch\u1ecdn th\u00f4ng b\u00e1o trong \u0111\u01a1n h\u00e0ng.<\/p>\n<p><img alt=\"Sequence Diagram example\" decoding=\"async\" height=\"439\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/09-sequence-diagram-example.png\" width=\"731\"\/><\/p>\n<p>Visual Paradigm h\u1ed7 tr\u1ee3 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 v\u00e0 c\u00e1c lo\u1ea1i s\u01a1 \u0111\u1ed3 UML kh\u00e1c. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u00f4 h\u00ecnh h\u00f3a c\u00e1c h\u00e0nh vi \u0111\u1ed9ng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1.<\/p>\n<h2 class=\"title style-scope ytd-video-primary-info-renderer\">Video nhanh \u2013 5 b\u01b0\u1edbc \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/h2>\n<p><iframe allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" class=\"__youtube_prefs__ epyt-is-override no-lazyload\" data-no-lazy=\"1\" data-origheight=\"456\" data-origwidth=\"810\" data-skipgform_ajax_framebjll=\"\" height=\"456\" id=\"_ytid_96534\" loading=\"lazy\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/18_kVlQMavE?enablejsapi=1&amp;autoplay=0&amp;cc_load_policy=0&amp;cc_lang_pref=&amp;iv_load_policy=1&amp;loop=0&amp;rel=1&amp;fs=1&amp;playsinline=0&amp;autohide=2&amp;theme=dark&amp;color=red&amp;controls=1&amp;disablekb=0&amp;\" title=\"YouTube player\" width=\"810\"><\/iframe><\/p>\n<h2>T\u00f3m t\u1eaft<\/h2>\n<p>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh d\u1ef1a tr\u00ean th\u1ee9 t\u1ef1 th\u1eddi gian v\u1ec1 s\u1ef1 h\u1ee3p t\u00e1c gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. N\u00f3 hi\u1ec3n th\u1ecb c\u00e1ch c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau trong m\u1ed9t t\u00ecnh hu\u1ed1ng s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3. V\u1edbi kh\u1ea3 n\u0103ng m\u00f4 h\u00ecnh h\u00f3a tr\u1ef1c quan n\u00e2ng cao, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o c\u00e1c s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 ph\u1ee9c t\u1ea1p ch\u1ec9 trong v\u00e0i c\u00fa nh\u1ea5p chu\u1ed9t. Ngo\u00e0i ra, Visual Paradigm c\u00f3 th\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 d\u1ef1a tr\u00ean lu\u1ed3ng s\u1ef1 ki\u1ec7n m\u00e0 b\u1ea1n \u0111\u1ecbnh ngh\u0129a trong m\u00f4 t\u1ea3 t\u00ecnh hu\u1ed1ng s\u1eed d\u1ee5ng.<\/p>\n<p>\u00a0<\/p>\n<\/div>\n<h2>Tham kh\u1ea3o<\/h2>\n<ul>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/sequence-diagram-tutorial\/\">H\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\/7025_drawingseque.html\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 v\u1ebd s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/solution\/sequencedgm\/uml-sequence-diagram-tool\/\">C\u00f4ng c\u1ee5 s\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 UML<\/a><\/li>\n<li><strong>S\u01a1 \u0111\u1ed3 tu\u1ea7n t\u1ef1 l\u00e0 g\u00ec?<\/strong>\n<ul>\n<li>Visual Paradigm. (n.d.). <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1?<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>S\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 \u2013 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML)<\/strong>\n<ul>\n<li>GeeksforGeeks. (2017, ng\u00e0y 27 th\u00e1ng 10). <a href=\"https:\/\/www.geeksforgeeks.org\/unified-modeling-language-uml-sequence-diagrams\/\">S\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 \u2013 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML)<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>T\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 UML<\/strong>\n<ul>\n<li>H\u1ed7 tr\u1ee3 Microsoft. (n.d.). <a href=\"https:\/\/support.microsoft.com\/en-us\/office\/create-a-uml-sequence-diagram-c61c371b-b150-4958-b128-902000133b26\">T\u1ea1o m\u1ed9t s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 UML<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>H\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1<\/strong>\n<ul>\n<li>Visual Paradigm. (n.d.). <a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/sequence-diagram-tutorial\/\">H\u01b0\u1edbng d\u1eabn s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>S\u01a1 \u0111\u1ed3 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML)<\/strong>\n<ul>\n<li>GeeksforGeeks. (2017, ng\u00e0y 27 th\u00e1ng 10). <a href=\"https:\/\/www.geeksforgeeks.org\/unified-modeling-language-uml-introduction\/\">S\u01a1 \u0111\u1ed3 Ng\u00f4n ng\u1eef m\u00f4 h\u00ecnh h\u00f3a th\u1ed1ng nh\u1ea5t (UML)<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Hi\u1ec3u s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1: B\u1ea3n v\u1ebd tr\u1ef1c quan v\u1ec1 c\u00e1c t\u01b0\u01a1ng t\u00e1c ph\u1ea7n m\u1ec1m \u2013 H\u01b0\u1edbng d\u1eabn c\u1ee7a Visual Paradigm<\/strong>\n<ul>\n<li>Visual Paradigm. (2023, ng\u00e0y 13 th\u00e1ng 9). <a href=\"https:\/\/guides.visual-paradigm.com\/understanding-sequence-diagrams-a-visual-blueprint-of-software-interactions\/\">Hi\u1ec3u s\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1: B\u1ea3n v\u1ebd tr\u1ef1c quan v\u1ec1 c\u00e1c t\u01b0\u01a1ng t\u00e1c ph\u1ea7n m\u1ec1m \u2013 H\u01b0\u1edbng d\u1eabn c\u1ee7a Visual Paradigm<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>C\u00f4ng c\u1ee5 UML mi\u1ec5n ph\u00ed<\/strong>\n<ul>\n<li>Visual Paradigm. (2018, ng\u00e0y 28 th\u00e1ng 11). <a href=\"https:\/\/www.visual-paradigm.com\/solution\/freeumltool\/\">C\u00f4ng c\u1ee5 UML mi\u1ec5n ph\u00ed<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>H\u01b0\u1edbng d\u1eabn v\u1ebd s\u01a1 \u0111\u1ed3 UML c\u1ee7a Visual Paradigm | Restackio<\/strong>\n<ul>\n<li>Restackio. (2024, ng\u00e0y 12 th\u00e1ng 12). <a href=\"https:\/\/www.restack.io\/p\/visual-paradigm-uml-answer-ai-project-planning\">H\u01b0\u1edbng d\u1eabn v\u1ebd s\u01a1 \u0111\u1ed3 UML c\u1ee7a Visual Paradigm | Restackio<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Gi\u1edbi thi\u1ec7u v\u1ec1 s\u01a1 \u0111\u1ed3 UML trong Visual Paradigm \u2013 ArchiMetric<\/strong>\n<ul>\n<li>ArchiMetric. (2024, ng\u00e0y 23 th\u00e1ng 8).\u00a0<a href=\"https:\/\/www.archimetric.com\/introduction-to-uml-diagrams-in-visual-paradigm\/\">Gi\u1edbi thi\u1ec7u v\u1ec1 s\u01a1 \u0111\u1ed3 UML trong Visual Paradigm \u2013 ArchiMetric<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ph\u1ea7n m\u1ec1m t\u1ea1o m\u00e3 v\u00e0 s\u01a1 \u0111\u1ed3 UML<\/strong>\n<ul>\n<li>Visual Paradigm. (2019, ng\u00e0y 6 th\u00e1ng 6).\u00a0<a href=\"https:\/\/www.visual-paradigm.com\/features\/code-engineering-tools\/\">Ph\u1ea7n m\u1ec1m t\u1ea1o m\u00e3 v\u00e0 s\u01a1 \u0111\u1ed3 UML<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>H\u1ecdc s\u01a1 \u0111\u1ed3 l\u1edbp v\u1edbi Visual Paradigm \u2013 ArchiMetric<\/strong>\n<ul>\n<li>ArchiMetric. (2024, ng\u00e0y 23 th\u00e1ng 8).\u00a0<a href=\"https:\/\/www.archimetric.com\/learning-class-diagrams-with-visual-paradigm\/\">H\u1ecdc s\u01a1 \u0111\u1ed3 l\u1edbp v\u1edbi Visual Paradigm \u2013 ArchiMetric<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>C\u00f4ng c\u1ee5 UML d\u1ec5 s\u1eed d\u1ee5ng<\/strong>\n<ul>\n<li>Visual Paradigm. (n.d.).\u00a0<a href=\"https:\/\/www.visual-paradigm.com\/features\/uml-tool\/\">C\u00f4ng c\u1ee5 UML d\u1ec5 s\u1eed d\u1ee5ng<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<li><strong>B\u00e0i h\u1ecdc UML mi\u1ec5n ph\u00ed \u2013 Visual Paradigm Essential | Udemy<\/strong>\n<ul>\n<li>Udemy. (n.d.).\u00a0<a href=\"https:\/\/www.udemy.com\/course\/visual-paradigm-essential\/\">B\u00e0i h\u1ecdc UML mi\u1ec5n ph\u00ed \u2013 Visual Paradigm Essential | Udemy<\/a>\u00a0.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A sequence diagram is an interaction diagram that emphasizes the time-ordering of messages. It depicts the objects and classes involved in the scenario and the sequence of messages exchanged between the objects needed to carry out the functionality of the scenario. Typically, you&#8217;ll use one sequence diagram to specify a use case&#8217;s main flow, and variations of that diagram to specify a use case&#8217;s exceptional flows.<\/p>\n","protected":false},"author":3479,"featured_media":11030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/cdn-images.visual-paradigm.com\/features\/v14\/3\/uml-and-sysml-tools\/sequence-diagram.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-11029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>S\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 l\u00e0 g\u00ec - ArchiMetric Vietnamese<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.archimetric.com\/vn\/what-is-sequence-diagram\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u01a1 \u0111\u1ed3 tr\u00ecnh t\u1ef1 l\u00e0 g\u00ec - ArchiMetric Vietnamese\" \/>\n<meta property=\"og:description\" content=\"A sequence diagram is an interaction diagram that emphasizes the time-ordering of messages. 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