{"id":6975,"date":"2026-07-27T11:43:13","date_gmt":"2026-07-27T03:43:13","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/"},"modified":"2026-07-27T11:43:13","modified_gmt":"2026-07-27T03:43:13","slug":"user-authentication-oauth2-activity-diagrams","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/","title":{"rendered":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3"},"content":{"rendered":"<article class=\"auth-guide-container\">\n<header class=\"guide-header\"><img fetchpriority=\"high\" alt=\"A two-column hero banner graphic for a guide on visualizing secure user authentication. The left side features bold white text on a blue background: 'USER AUTHENTICATION &amp; OAUTH 2.0 FLOWS' and 'Mastering Multi-Factor Auth, PKCE &amp; Diagram-as-Code.' The right side displays a clean, blended technical activity diagram (image_2.png style) or schematic layout (image_4.png style) illustrating a complete OAuth 2.0 process flow with secure nodes and tokens, using a blue and white color scheme.\" class=\"alignnone size-full wp-image-6927\" decoding=\"async\" fetchpriority=\"high\" height=\"816\" sizes=\"(max-width: 1312px) 100vw, 1312px\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\" srcset=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg 1312w, https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide-300x187.jpg 300w, https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide-1024x637.jpg 1024w, https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide-768x478.jpg 768w\" width=\"1312\"\/><\/p>\n<p class=\"lead-text\">\u30bb\u30ad\u30e5\u30a2\u306a\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073\u627f\u8a8d\u30ed\u30b8\u30c3\u30af\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u7d76\u5bfe\u7684\u306a\u660e\u78ba\u3055\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u30de\u30eb\u30c1\u30d5\u30a1\u30af\u30bf\u8a8d\u8a3c\uff08MFA\uff09\u306e\u30eb\u30fc\u30d7\u304b\u3089\u3001PKCE\u3092\u7528\u3044\u305fOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u4ed8\u4e0e\u307e\u3067\u3001\u30c8\u30fc\u30af\u30f3\u306e\u4ea4\u63db\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5883\u754c\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u91cd\u5927\u306a\u5b9f\u88c5\u4e0a\u306e\u6b20\u9665\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306eUML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306e\u4f8b\u3001PlantUML\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3001\u30b7\u30b9\u30c6\u30e0\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u304a\u3088\u3073\u958b\u767a\u8005\u5411\u3051\u306e\u5373\u6642\u5229\u7528\u53ef\u80fd\u306aAI\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/header>\n<hr\/>\n<nav class=\"table-of-contents\">\n<h2>\u76ee\u6b21<\/h2>\n<ul>\n<li><a href=\"#example-1\">\u4f8b1\uff1aMFA\u4ed8\u304d\u306e\u6a19\u6e96\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u540d\/\u30d1\u30b9\u30ef\u30fc\u30c9\u30ed\u30b0\u30a4\u30f3<\/a><\/li>\n<li><a href=\"#example-2\">\u4f8b2\uff1aPKCE\u4ed8\u304d\u306eOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc<\/a><\/li>\n<li><a href=\"#example-3\">\u4f8b3\uff1aJWT\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u304a\u3088\u3073\u30b5\u30a4\u30ec\u30f3\u30c8\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30d5\u30ed\u30fc<\/a><\/li>\n<li><a href=\"#prompt-engineering\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304a\u3088\u3073\u8a8d\u8a3c\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u5411\u3051\u30d7\u30ed\u30f3\u30d7\u30c8\u8a2d\u8a08<\/a><\/li>\n<li><a href=\"#ai-workflow\">Visual Paradigm\u306b\u304a\u3051\u308b\u56f3\u3068\u3057\u3066\u306e\u30b3\u30fc\u30c9\u306b\u3088\u308bAI\u751f\u6210\u306e\u6a4b\u6e21\u3057<\/a><\/li>\n<li><a href=\"#faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li>\n<\/ul>\n<\/nav>\n<hr\/>\n<section id=\"example-1\">\n<h2>\u4f8b1\uff1aMFA\u4ed8\u304d\u306e\u6a19\u6e96\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u540d\/\u30d1\u30b9\u30ef\u30fc\u30c9\u30ed\u30b0\u30a4\u30f3<\/h2>\n<p>\u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306f\u3001\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u306e\u30ec\u30fc\u30c8\u5236\u9650\u304a\u3088\u3073\u30de\u30eb\u30c1\u30d5\u30a1\u30af\u30bf\u8a8d\u8a3c\uff08MFA\uff09\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u3092\u542b\u3080\u3001\u5b8c\u5168\u306a\u8cc7\u683c\u60c5\u5831\u691c\u8a3c\u30d5\u30ed\u30fc\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u91cd\u8981\u306a\u30e2\u30c7\u30eb\u5316\u30b3\u30f3\u30bb\u30d7\u30c8\uff1a<\/h3>\n<ul>\n<li><strong>\u30b9\u30a4\u30e0\u30ec\u30fc\u30f3\u306e\u5206\u5272\uff1a<\/strong>UI\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea\uff09\u3001API\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff0fID\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u5206\u96e2\u3059\u308b\u3002<\/li>\n<li><strong>\u6761\u4ef6\u4ed8\u304d\u30ac\u30fc\u30c9\u6761\u4ef6\uff1a<\/strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u6709\u52b9\u6027\u304a\u3088\u3073\u30a2\u30ab\u30a6\u30f3\u30c8\u30ed\u30c3\u30af\u72b6\u614b\u306e\u8a55\u4fa1\u3002<\/li>\n<\/ul>\n<h3>PlantUML\u30b3\u30fc\u30c9\uff1a<\/h3>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#plantuml:ZPD1Rzim38Nl1lmVY1o6zZ3ireDpM8quMJqiHP1a6ufX1qPc6g6ov4dqjW3zyQFYfEvIhvYE4lNulIVgEZ1wRckJ9eyJeyaov4rZj4BMpZwcoU4yJRAfPVBmEP2tM1EyWGM6yClvQYo7SbCzm6YbxosKTYHR8fUtl8DyKOf8zWMDhf09blIZfS1oUsySnijw2nVBUFH9rvfX-biHLLIzlmJUaOMBRtSKlb-c2S0m841MwD0OtCDexHpCqUvFRS88RXrhHUDO5zWrQK8caAZUkgDeWOmRbBrtK1QBJd16h8HTATTAlzuht63OYHRPIc_FJKOZJuLp58NUmwbRLbhbgOukPgWDLP0pKzqmJ68hykF_CrhQdp5Hc7Z9oh968rQdtZl_qccVtpDOW8Wxd-KmjRWnWtd_6qHG5jv5xAtpSFMsqFVoT55jugekR2bPjPlwvVRV53t7OKG6AKJg0rdoSKXM589GmDeza0r7oRCdVPryACOJulCCu-foFBJeNdoWrxcVLrcFClty369cAtQUuEFNjMYerfFPon0kgTAU50CxA6GEDmuFlw-3l1PD-SP_0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>VPasCode\u3067PlantUML\u3092\u7de8\u96c6<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Plantuml<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/#plantuml:bLHFRn915BzlijzXmgdz0XxemJOn9ZKnyM3YmNWmaSOcjHh16uUTUI0BKi76Yb0KQ2XkbrBQO52Kb0_pc6Kv-HMScGNS5MnnizcytNdpVd_UcrsFnXw_ZBrwjgDhSMHjX1DaTMH721q4KmK513kkQofHry883OG-igvuylmUKWlX7R8UGbj-XpIoVPuyvfb3f4LaRzR4dX122zcvB0sTa4XGK3O2o62Q9YYuzfvhzJVkRSOLaYsNcQMgcmWbLQ0rWt7gPP4zsx-zHLOGJjMooStkk9WNIMutYTH4MhcvIc9F8xjavI5I0PfujAfhX5oZcX19FiY3Pdcz957fMwIN8WWXFHiRfL7bMEBLh57znumK8T7OynUw5jc9HXHqGjtc51rIoiq1Gb45lL_ztEOjXI-4vfLYGwnuN2GrraJMc32TDnzoojLl298CpttWbuKPcSZka-sjEQCztu9bQ7RutN1JN_sc1PY7UVt2EIYu9mstbkM7dvs3SubtLE2Pga_y4lQE4ZMUwI6rtKxAgVOTIFBgHKZQBVP9IwwrrDTDlov2fBAxjpU46gUS5Y2BHs09beBd3QT6HPzbETPPEEd8H4DU3mSWNjSck_vA7njqEAZvbCnHNfwq6eUVqsv_cT2MXhLbpFP7xokEcG-0BPx29Iq8DCilxEfcoSjhc6BWZU2_gSpvyRyg9mX_PlrgPU4x3-xBHfwbUT92sXmEFl7MHwG5DAWwUjFJ1ENfsMYgVvUXpkQfgcxEy3sbwm9T_5H_0m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Plantuml in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n|\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\nstart\r\n:\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b;\r\n:\"\u30ed\u30b0\u30a4\u30f3\"\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b;\r\n\r\n|\u8a8d\u8a3cAPI|\r\n:\u30ea\u30af\u30a8\u30b9\u30c8\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u691c\u8a3c\u3059\u308b;\r\nif (\u30ec\u30fc\u30c8\u5236\u9650\u3092\u8d85\u3048\u305f?) then ([\u306f\u3044])\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n  :\"\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u591a\u3059\u304e\u307e\u3059\"\u306e\u901a\u77e5\u3092\u8868\u793a\u3059\u308b;\r\n  stop\r\nelse ([\u3044\u3044\u3048])\r\n  |\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff0fID\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc|\r\n  :\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3092\u53d6\u5f97\u3059\u308b;\r\nendif\r\n\r\n|\u8a8d\u8a3cAPI|\r\nif (\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4?) then ([\u3044\u3044\u3048])\r\n  :\u5931\u6557\u8a66\u884c\u56de\u6570\u3092\u5897\u52a0\u3059\u308b;\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n  :\"\u7121\u52b9\u306a\u8cc7\u683c\u60c5\u5831\"\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b;\r\n  stop\r\nelse ([\u306f\u3044])\r\n  |\u8a8d\u8a3cAPI|\r\n  if (MFA\u304c\u6709\u52b9?) then ([\u306f\u3044])\r\n    |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n    :6\u6841\u306eMFA\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b\u3088\u3046\u4fc3\u3059;\r\n    :MFA\u30b3\u30fc\u30c9\u3092\u9001\u4fe1\u3059\u308b;\r\n    |\u8a8d\u8a3cAPI|\r\n    if (MFA\u304c\u6709\u52b9?) then ([\u306f\u3044])\r\n      :\u30bb\u30c3\u30b7\u30e7\u30f3\u30c8\u30fc\u30af\u30f3\u3092\u751f\u6210\u3059\u308b;\r\n    else ([\u3044\u3044\u3048])\r\n      |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n      :\"\u7121\u52b9\u306aMFA\u30b3\u30fc\u30c9\"\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b;\r\n      stop\r\n    endif\r\n  else ([\u3044\u3044\u3048])\r\n    |\u8a8d\u8a3cAPI|\r\n    :\u30bb\u30c3\u30b7\u30e7\u30f3\u30c8\u30fc\u30af\u30f3\u3092\u751f\u6210\u3059\u308b;\r\n  endif\r\nendif\r\n\r\n|\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n:JWT\u3092\u5b89\u5168\u306b\u4fdd\u5b58\u3057\u3001\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b;\r\nstop\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/#plantuml:bLHFRn915BzlijzXmgdz0XxemJOn9ZKnyM3YmNWmaSOcjHh16uUTUI0BKi76Yb0KQ2XkbrBQO52Kb0_pc6Kv-HMScGNS5MnnizcytNdpVd_UcrsFnXw_ZBrwjgDhSMHjX1DaTMH721q4KmK513kkQofHry883OG-igvuylmUKWlX7R8UGbj-XpIoVPuyvfb3f4LaRzR4dX122zcvB0sTa4XGK3O2o62Q9YYuzfvhzJVkRSOLaYsNcQMgcmWbLQ0rWt7gPP4zsx-zHLOGJjMooStkk9WNIMutYTH4MhcvIc9F8xjavI5I0PfujAfhX5oZcX19FiY3Pdcz957fMwIN8WWXFHiRfL7bMEBLh57znumK8T7OynUw5jc9HXHqGjtc51rIoiq1Gb45lL_ztEOjXI-4vfLYGwnuN2GrraJMc32TDnzoojLl298CpttWbuKPcSZka-sjEQCztu9bQ7RutN1JN_sc1PY7UVt2EIYu9mstbkM7dvs3SubtLE2Pga_y4lQE4ZMUwI6rtKxAgVOTIFBgHKZQBVP9IwwrrDTDlov2fBAxjpU46gUS5Y2BHs09beBd3QT6HPzbETPPEEd8H4DU3mSWNjSck_vA7njqEAZvbCnHNfwq6eUVqsv_cT2MXhLbpFP7xokEcG-0BPx29Iq8DCilxEfcoSjhc6BWZU2_gSpvyRyg9mX_PlrgPU4x3-xBHfwbUT92sXmEFl7MHwG5DAWwUjFJ1ENfsMYgVvUXpkQfgcxEy3sbwm9T_5H_0m00\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Plantuml in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#plantuml:ZPD1Rzim38Nl1lmVY1o6zZ3ireDpM8quMJqiHP1a6ufX1qPc6g6ov4dqjW3zyQFYfEvIhvYE4lNulIVgEZ1wRckJ9eyJeyaov4rZj4BMpZwcoU4yJRAfPVBmEP2tM1EyWGM6yClvQYo7SbCzm6YbxosKTYHR8fUtl8DyKOf8zWMDhf09blIZfS1oUsySnijw2nVBUFH9rvfX-biHLLIzlmJUaOMBRtSKlb-c2S0m841MwD0OtCDexHpCqUvFRS88RXrhHUDO5zWrQK8caAZUkgDeWOmRbBrtK1QBJd16h8HTATTAlzuht63OYHRPIc_FJKOZJuLp58NUmwbRLbhbgOukPgWDLP0pKzqmJ68hykF_CrhQdp5Hc7Z9oh968rQdtZl_qccVtpDOW8Wxd-KmjRWnWtd_6qHG5jv5xAtpSFMsqFVoT55jugekR2bPjPlwvVRV53t7OKG6AKJg0rdoSKXM589GmDeza0r7oRCdVPryACOJulCCu-foFBJeNdoWrxcVLrcFClty369cAtQUuEFNjMYerfFPon0kgTAU50CxA6GEDmuFlw-3l1PD-SP_0000\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>VPasCode\u3067PlantUML\u3092\u7de8\u96c6<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>AI\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8\u30d7\u30ed\u30f3\u30d7\u30c8\uff1a<\/h3>\n<blockquote>\n<p><em>\u300cMFA\u4ed8\u304d\u306e\u30e6\u30fc\u30b6\u30fc\u30ed\u30b0\u30a4\u30f3\u30d7\u30ed\u30bb\u30b9\u306eUML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u751f\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b9\u30a4\u30e0\u30ec\u30fc\u30f3\u3068\u3057\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea\u3001\u8a8d\u8a3cAPI\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff0fID\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30ec\u30fc\u30c8\u5236\u9650\u3092\u78ba\u8a8d\u3057\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3092\u691c\u8a3c\u3057\u3066\u304f\u3060\u3055\u3044\u3002MFA\u304c\u6709\u52b9\u306a\u5834\u5408\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30c8\u30fc\u30af\u30f3\u3092\u767a\u884c\u3059\u308b\u524d\u306b6\u6841\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b\u3088\u3046\u4fc3\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d<\/em><\/p>\n<\/blockquote>\n<\/section>\n<section id=\"example-2\">\n<h2>\u4f8b2\uff1aPKCE\u4ed8\u304d\u306eOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc<\/h2>\n<p>\u8a3c\u660e\u30ad\u30fc\u306b\u3088\u308b\u30b3\u30fc\u30c9\u4ea4\u63db\uff08PKCE\uff09\u3092\u5099\u3048\u305fOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u4ed8\u4e0e\u306f\u3001\u30b7\u30f3\u30b0\u30eb\u30da\u30fc\u30b8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08SPAs\uff09\u304a\u3088\u3073\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306e\u696d\u754c\u6a19\u6e96\u3067\u3059\u3002\u30b3\u30fc\u30c9\u30c1\u30e3\u30ec\u30f3\u30b8\u3068\u30c8\u30fc\u30af\u30f3\u4ea4\u63db\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5b8c\u5168\u306a\u6e96\u62e0\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u91cd\u8981\u306a\u30e2\u30c7\u30eb\u5316\u30b3\u30f3\u30bb\u30d7\u30c8\uff1a<\/h3>\n<ul>\n<li><strong>\u4e26\u5217\u751f\u6210\uff1a<\/strong>\u751f\u6210\u3059\u308b\uff1a<code>code_verifier<\/code>\u304a\u3088\u3073<code>\u30b3\u30fc\u30c9\u30c1\u30e3\u30ec\u30f3\u30b8<\/code>\u30d6\u30e9\u30a6\u30b6\u3092\u8d77\u52d5\u3059\u308b\u524d\u306b\u540c\u6642\u306b\u5b9f\u884c\u3059\u308b\u3002<\/li>\n<li><strong>\u30af\u30ed\u30b9\u30c9\u30e1\u30a4\u30f3\u8a8d\u53ef\uff1a<\/strong>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3001\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc\u3001\u30ea\u30bd\u30fc\u30b9\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3002<\/li>\n<\/ul>\n<h3>PlantUML\u30b3\u30fc\u30c9\uff1a<\/h3>\n<pre><code>@startuml\r\n|\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea (SPA)|\r\nstart\r\nfork\r\n  :PKCE\u30b3\u30fc\u30c9\u691c\u8a3c\u8005\u3092\u751f\u6210\u3059\u308b;\r\nfork again\r\n  :PKCE\u30b3\u30fc\u30c9\u30c1\u30e3\u30ec\u30f3\u30b8\u3092\u5c0e\u51fa\u3059\u308b (SHA256);\r\nend fork\r\n:\u30c1\u30e3\u30ec\u30f3\u30b8\u3092\u542b\u3081\u3066\u30d6\u30e9\u30a6\u30b6\u3092\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b;\r\n\r\n|\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc|\r\n:\u30e6\u30fc\u30b6\u30fc\u306b\u30ed\u30b0\u30a4\u30f3\u3068\u627f\u8a8d\u3092\u4fc3\u3059;\r\n|\u30e6\u30fc\u30b6\u30fc|\r\n:\u30b9\u30b3\u30fc\u30d7\u3092\u627f\u8a8d\u3057\u3001\u8a8d\u53ef\u3059\u308b;\r\n\r\n|\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc|\r\n:\u77ed\u671f\u9593\u6709\u52b9\u306a\u8a8d\u53ef\u30b3\u30fc\u30c9\u3092\u767a\u884c\u3059\u308b;\r\n:\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8URI\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b;\r\n\r\n|\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea (SPA)|\r\n:\u8a8d\u53ef\u30b3\u30fc\u30c9\u3092\u62bd\u51fa\u3059\u308b;\r\n:\u30b3\u30fc\u30c9 + PKCE\u30b3\u30fc\u30c9\u691c\u8a3c\u8005\u3092\u30c8\u30fc\u30af\u30f3\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u9001\u4fe1\u3059\u308b;\r\n\r\n|\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc|\r\n:\u30b3\u30fc\u30c9\u691c\u8a3c\u8005\u3092\u30b3\u30fc\u30c9\u30c1\u30e3\u30ec\u30f3\u30b8\u3068\u7167\u5408\u3059\u308b;\r\nif (\u7167\u5408\u6210\u529f?) then ([\u306f\u3044])\r\n  :\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3068\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u3092\u767a\u884c\u3059\u308b;\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea (SPA)|\r\n  :\u30e1\u30e2\u30ea\u306b\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3092\u4fdd\u5b58\u3059\u308b;\r\n  :\u4fdd\u8b77\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97\u3059\u308b;\r\nelse ([\u5931\u6557])\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea (SPA)|\r\n  :\u8a8d\u53ef\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b;\r\nendif\r\nstop\r\n@enduml<\/code><\/pre>\n<h3>AI\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8\u30d7\u30ed\u30f3\u30d7\u30c8\uff1a<\/h3>\n<blockquote>\n<p><em>\u300cOAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\uff08PKCE\u4ed8\u304d\uff09\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b3\u30fc\u30c9\u691c\u8a3c\u8005\u3068\u30b3\u30fc\u30c9\u30c1\u30e3\u30ec\u30f3\u30b8\u306e\u4e26\u884c\u751f\u6210\u3001\u8a8d\u53ef\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u627f\u8a8d\u3001\u30b3\u30fc\u30c9\u306e\u63db\u91d1\u3001\u30c8\u30fc\u30af\u30f3\u306e\u691c\u8a3c\u3092\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d<\/em><\/p>\n<\/blockquote>\n<\/section>\n<section id=\"example-3\">\n<h2>\u4f8b3\uff1aJWT\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u304a\u3088\u3073\u30b5\u30a4\u30ec\u30f3\u30c8\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30d5\u30ed\u30fc<\/h2>\n<p>API\u8a8d\u53ef\u3092\u5b89\u5168\u306b\u7ba1\u7406\u3059\u308b\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3067JSON Web\u30c8\u30fc\u30af\u30f3\uff08JWT\uff09\u3092\u691c\u8a3c\u3057\u3001\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u3092\u4f7f\u7528\u3057\u3066\u671f\u9650\u5207\u308c\u306e\u30c8\u30fc\u30af\u30f3\u3092\u9759\u304b\u306b\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u305b\u3093\u3002<\/p>\n<h3>\u91cd\u8981\u306a\u30e2\u30c7\u30eb\u5316\u30b3\u30f3\u30bb\u30d7\u30c8\uff1a<\/h3>\n<ul>\n<li><strong>\u975e\u540c\u671f\u56de\u5fa9\u30eb\u30fc\u30d7\uff1a<\/strong>401 Unauthorized\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u691c\u51fa\u3055\u308c\u305f\u3068\u304d\u306b\u65b0\u3057\u3044\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3092\u8981\u6c42\u3059\u308b\u3002<code>401 Unauthorized<\/code>\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u691c\u51fa\u3055\u308c\u305f\u3002<\/li>\n<li><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6709\u52b9\u671f\u9650\u5207\u308c\u51e6\u7406\uff1a<\/strong>\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u81ea\u4f53\u304c\u671f\u9650\u5207\u308c\u306b\u306a\u3063\u305f\u5834\u5408\u3001\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u30af\u30ea\u30a2\u3057\u3001\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3002<\/li>\n<\/ul>\n<h3>PlantUML\u30b3\u30fc\u30c9\uff1a<\/h3>\n<pre><code>@startuml\r\n|\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\nstart\r\n:\u30d9\u30a2\u30e9\u30fc\u30c8\u30fc\u30af\u30f3\u3092\u542b\u3081\u3066API\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b;\r\n\r\n|API\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4|\r\n:\u8a8d\u53ef\u30d8\u30c3\u30c0\u30fc\u3092\u691c\u67fb\u3059\u308b;\r\nif (\u30c8\u30fc\u30af\u30f3\u304c\u6709\u52b9\u3067\u671f\u9650\u5207\u308c\u3067\u306a\u3044?) then ([\u6709\u52b9])\r\n  :\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306b\u8ee2\u9001\u3059\u308b;\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n  :API\u30da\u30a4\u30ed\u30fc\u30c9\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\u3059\u308b;\r\n  stop\r\nelse ([\u671f\u9650\u5207\u308c \/ 401])\r\n  |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n  :401\u30a8\u30e9\u30fc\u3092\u691c\u51fa\u3059\u308b;\r\n  :\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u3092\u8a8d\u53ef\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u9001\u4fe1\u3059\u308b;\r\n  \r\n  |\u8a8d\u53efAPI|\r\n  if (\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u304c\u6709\u52b9?) then ([\u306f\u3044])\r\n    :\u65b0\u3057\u3044\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3092\u767a\u884c\u3059\u308b;\r\n    |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n    :\u30e1\u30e2\u30ea\u5185\u306e\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u3092\u66f4\u65b0\u3059\u308b;\r\n    :\u5143\u306eAPI\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u518d\u8a66\u884c\u3059\u308b;\r\n    stop\r\n  else ([\u671f\u9650\u5207\u308c \/ \u53d6\u308a\u6d88\u3057\u6e08\u307f])\r\n    |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea|\r\n    :\u4fdd\u5b58\u3055\u308c\u305f\u30c8\u30fc\u30af\u30f3\u3092\u30af\u30ea\u30a2\u3059\u308b;\r\n    :\u30e6\u30fc\u30b6\u30fc\u3092\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b;\r\n    stop\r\n  endif\r\nendif\r\n@enduml<\/code><\/pre>\n<h3>AI\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8\u30d7\u30ed\u30f3\u30d7\u30c8\uff1a<\/h3>\n<blockquote>\n<p><em>\u300cJWT\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u3068\u30b5\u30a4\u30ec\u30f3\u30c8\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u793a\u3059\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u751f\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u304c\u6709\u52b9\u306a\u5834\u5408\u3001API\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u3002\u671f\u9650\u5207\u308c\uff08401\uff09\u306e\u5834\u5408\u3001\u30b5\u30a4\u30ec\u30f3\u30c8\u30c8\u30fc\u30af\u30f3\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3092\u8a66\u884c\u3059\u308b\u3002\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30c8\u30fc\u30af\u30f3\u3082\u671f\u9650\u5207\u308c\u306e\u5834\u5408\u3001\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30ec\u30fc\u30b8\u3092\u30af\u30ea\u30a2\u3057\u3001\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3002\u300d<\/em><\/p>\n<\/blockquote>\n<\/section>\n<section id=\"prompt-engineering\">\n<h2>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304a\u3088\u3073\u8a8d\u8a3c\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u305f\u3081\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u8a2d\u8a08<\/h2>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u969b\u3001<a href=\"https:\/\/www.visual-paradigm.com\/features\/ai-uml-activity-diagram-chatbot\/\">AI\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u30c4\u30fc\u30eb<\/a>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6b63\u78ba\u306a\u8868\u73fe\u306b\u3088\u308a\u3001\u5f62\u5f0f\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5883\u754c\u304c\u660e\u78ba\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u6b63\u78ba\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3092\u540d\u524d\u6307\u5b9a\u3059\u308b\uff1a<\/strong>\u30c8\u30fc\u30af\u30f3\u3001\u691c\u8a3c\u30b3\u30fc\u30c9\u3001\u30cf\u30c3\u30b7\u30e5\uff08\u4f8b\uff1a<em>\u300cJWT\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u30f3\u300d<\/em>, <em>\u300ccode_challenge\u300d<\/em>, <em>\u300cbcrypt\u30cf\u30c3\u30b7\u30e5\u300d<\/em>) \u305d\u306e\u305f\u3081AI\u304c\u30ce\u30fc\u30c9\u3092\u6b63\u3057\u304f\u30e9\u30d9\u30eb\u4ed8\u3051\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u6b63\u5e38\u30d1\u30b9\u3068\u7570\u5e38\u30d1\u30b9\u306e\u4e21\u65b9\u3092\u5b9a\u7fa9\u3059\u308b\uff1a<\/strong> \u5931\u6557\u30d5\u30ed\u30fc\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3059\u308b (\u4f8b\uff1a<em>\u300cMFA\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u306f\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b\u3002\u30ec\u30fc\u30c8\u5236\u9650\u3092\u8d85\u3048\u305f\u5834\u5408\u306f429 Too Many Requests\u3092\u8fd4\u3059\u300d<\/em>).<\/li>\n<li><strong>\u4fe1\u983c\u5883\u754c\u3092\u6307\u5b9a\u3059\u308b\uff1a<\/strong> \u30b9\u30a4\u30e0\u30ec\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u5b9f\u884c\uff08\u4fe1\u983c\u3067\u304d\u306a\u3044\u30d6\u30e9\u30a6\u30b6\/\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\uff09\u3068\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u5b9f\u884c\uff08\u4fe1\u983c\u3067\u304d\u308bAPI\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\/\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff09\u3092\u533a\u5225\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/section>\n<section id=\"ai-workflow\">\n<h2>Visual Paradigm\u306b\u304a\u3051\u308bDiagram-as-Code\u3068AI\u751f\u6210\u306e\u6a4b\u6e21\u3057<\/h2>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u8a2d\u8a08\u306b\u306f\u3001\u8fc5\u901f\u306a\u53cd\u5fa9\u3068\u53b3\u683c\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306e\u4e21\u65b9\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u306e<strong>AI\u56f3\u9762\u4f5c\u6210\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8<\/strong> Visual Paradigm\u3067\u306f\u3001\u5b8c\u5168\u306a\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u5bfe\u8a71\u578b\u8a8d\u8a3c\u56f3\u751f\u6210\uff1a<\/strong> \u8907\u96d1\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u3092AI UML\u30c4\u30fc\u30eb\u306b\u30d7\u30ed\u30f3\u30d7\u30c8\u3057\u3001\u6570\u79d2\u3067\u69cb\u6587\u7684\u306b\u6b63\u3057\u3044PlantUML\u307e\u305f\u306fMermaid\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n<li><strong>VPasCode\u3067\u7de8\u96c6\uff1a<\/strong> \u751f\u6210\u3055\u308c\u305f\u8a8d\u8a3c\u56f3\u3092\u76f4\u63a5<a href=\"https:\/\/www.visual-paradigm.com\/features\/diagram-as-code-tool\/\">VPasCode<\/a>\u306b\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u5fae\u8abf\u6574\u3092\u884c\u3046\u3002<\/li>\n<li><strong>OpenDocs\u306b\u304a\u3051\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3SOP\uff1a<\/strong> \u6d3b\u52d5\u56f3\u3092OpenDocs\u306b\u57cb\u3081\u8fbc\u307f\u3001\u5305\u62ec\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30ec\u30d3\u30e5\u30fc\u3001\u958b\u767a\u8005\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u30ac\u30a4\u30c9\u3001\u304a\u3088\u3073SOC 2 \/ ISO 27001\u76e3\u67fb\u6587\u66f8\u3092\u4f5c\u6210\u3059\u308b\u3002<\/li>\n<li><strong>\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u30bb\u30c3\u30b7\u30e7\u30f3\u5171\u6709\uff1a<\/strong> \u540c\u50da\u306e\u958b\u767a\u8005\u304a\u3088\u3073\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u76e3\u67fb\u62c5\u5f53\u8005\u3068\u76f4\u63a5\u30c1\u30e3\u30c3\u30c8\u30bb\u30c3\u30b7\u30e7\u30f3\u306eURL\u3092\u5171\u6709\u3057\u3001\u8fc5\u901f\u306a\u5171\u540c\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>Web\u4e0a\u3067\u5bfe\u8a71\u578bAI\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u4f53\u9a13\u3059\u308b\u306b\u306f<strong>VP Online Deluxe Edition<\/strong> \u307e\u305f\u306f\u30c7\u30b9\u30af\u30c8\u30c3\u30d7IDE\u74b0\u5883\u3067<strong>VP Desktop Professional Edition<\/strong>.<\/p>\n<\/section>\n<section id=\"faq\">\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>OAuth 2.0\u3067\u306f\u3001\u306a\u305cUML\u6d3b\u52d5\u56f3\u3092\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u3088\u308a\u3082\u9078\u3076\u306e\u304b\uff1f<\/h3>\n<p>\u30b7\u30fc\u30b1\u30f3\u30b9\u56f3\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u6642\u7cfb\u5217\u9806\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1\u3092\u793a\u3059\u306e\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306f\u3001\u6c7a\u5b9a\u8ad6\u7406\u3001\u6761\u4ef6\u4ed8\u304d\u30c8\u30fc\u30af\u30f3\u306e\u518d\u767a\u884c\u3001\u4e26\u884c\u30bf\u30b9\u30af\uff08\u4e26\u5217\u306aPKCE\u30cf\u30c3\u30b7\u30e5\u751f\u6210\u306a\u3069\uff09\u3092\u793a\u3059\u306e\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u751f\u6210\u3055\u308c\u305f\u8a8d\u8a3c\u56f3\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3057\u3066\u3001VP Desktop\u3067\u7de8\u96c6\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u306f\u3044\u3002AI\u56f3\u9762\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u56f3\u306f\u3001Visual Paradigm Desktop\u307e\u305f\u306fVisual Paradigm Online\u3067\u76f4\u63a5\u958b\u3044\u3066\u7de8\u96c6\u3067\u304d\u3001\u3055\u3089\u306b\u8996\u899a\u7684\u306a\u8abf\u6574\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h3>AI\u30c1\u30e3\u30c3\u30c8\u30dc\u30c3\u30c8\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u56f3\u306e\u69cb\u6587\u30a8\u30e9\u30fc\u7387\u3092\u4f4e\u304f\u4fdd\u8a3c\u3057\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u306f\u3044\u3002\u6c4e\u7528\u7684\u306aAI\u30c1\u30e3\u30c3\u30c8\u30c4\u30fc\u30eb\u3068\u306f\u7570\u306a\u308a\u3001Visual Paradigm\u306f\u3001UML\u304a\u3088\u3073PlantUML\u56f3\u306e\u69cb\u6587\u3092\u6b63\u3057\u304f\u751f\u6210\u3059\u308b\u3088\u3046\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3001\u975e\u5e38\u306b\u4f4e\u3044\u30a8\u30e9\u30fc\u7387\u3067\u8a13\u7df4\u3055\u308c\u305f\u30e2\u30c7\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/section>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u30bb\u30ad\u30e5\u30a2\u306a\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073\u627f\u8a8d\u30ed\u30b8\u30c3\u30af\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u7d76\u5bfe\u7684\u306a\u660e\u78ba\u3055\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u30de\u30eb\u30c1\u30d5\u30a1\u30af\u30bf\u8a8d\u8a3c\uff08MFA\uff09\u306e\u30eb\u30fc\u30d7\u304b\u3089\u3001PKCE\u3092\u7528\u3044\u305fOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u4ed8\u4e0e\u307e\u3067\u3001\u30c8\u30fc\u30af\u30f3\u306e\u4ea4\u63db\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5883\u754c\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u91cd\u5927\u306a\u5b9f\u88c5\u4e0a\u306e\u6b20\u9665\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306eUML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306e\u4f8b\u3001PlantUML\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3001\u30b7\u30b9\u30c6\u30e0\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u304a\u3088\u3073\u958b\u767a\u8005\u5411\u3051\u306e\u5373\u6642\u5229\u7528\u53ef\u80fd\u306aAI\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 \u76ee\u6b21 \u4f8b1\uff1aMFA\u4ed8\u304d\u306e\u6a19\u6e96\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u540d\/\u30d1\u30b9\u30ef\u30fc\u30c9\u30ed\u30b0\u30a4\u30f3 \u4f8b2\uff1aPKCE\u4ed8\u304d\u306eOAuth 2.0\u627f\u8a8d\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc \u4f8b3\uff1aJWT\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u304a\u3088\u3073\u30b5\u30a4\u30ec\u30f3\u30c8\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u30d5\u30ed\u30fc \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304a\u3088\u3073\u8a8d\u8a3c\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u5411\u3051\u30d7\u30ed\u30f3\u30d7\u30c8\u8a2d\u8a08 Visual Paradigm\u306b\u304a\u3051\u308b\u56f3\u3068\u3057\u3066\u306e\u30b3\u30fc\u30c9\u306b\u3088\u308bAI\u751f\u6210\u306e\u6a4b\u6e21\u3057 \u3088\u304f\u3042\u308b\u8cea\u554f \u4f8b1\uff1aMFA\u4ed8\u304d\u306e\u6a19\u6e96\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u540d\/\u30d1\u30b9\u30ef\u30fc\u30c9\u30ed\u30b0\u30a4\u30f3 \u3053\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u306f\u3001\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u306e\u30ec\u30fc\u30c8\u5236\u9650\u304a\u3088\u3073\u30de\u30eb\u30c1\u30d5\u30a1\u30af\u30bf\u8a8d\u8a3c\uff08MFA\uff09\u30c8\u30fc\u30af\u30f3\u691c\u8a3c\u3092\u542b\u3080\u3001\u5b8c\u5168\u306a\u8cc7\u683c\u60c5\u5831\u691c\u8a3c\u30d5\u30ed\u30fc\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002 \u91cd\u8981\u306a\u30e2\u30c7\u30eb\u5316\u30b3\u30f3\u30bb\u30d7\u30c8\uff1a \u30b9\u30a4\u30e0\u30ec\u30fc\u30f3\u306e\u5206\u5272\uff1aUI\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea\uff09\u3001API\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff0fID\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3092\u5206\u96e2\u3059\u308b\u3002 \u6761\u4ef6\u4ed8\u304d\u30ac\u30fc\u30c9\u6761\u4ef6\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u6709\u52b9\u6027\u304a\u3088\u3073\u30a2\u30ab\u30a6\u30f3\u30c8\u30ed\u30c3\u30af\u72b6\u614b\u306e\u8a55\u4fa1\u3002 PlantUML\u30b3\u30fc\u30c9\uff1a PlantUML VPasCode\u3067PlantUML\u3092\u7de8\u96c6 Plantuml Edit Plantuml in VPasCode @startuml |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea| start :\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b; :&#8221;\u30ed\u30b0\u30a4\u30f3&#8221;\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b; |\u8a8d\u8a3cAPI| :\u30ea\u30af\u30a8\u30b9\u30c8\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u691c\u8a3c\u3059\u308b; if (\u30ec\u30fc\u30c8\u5236\u9650\u3092\u8d85\u3048\u305f?) then ([\u306f\u3044]) |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea| :&#8221;\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u591a\u3059\u304e\u307e\u3059&#8221;\u306e\u901a\u77e5\u3092\u8868\u793a\u3059\u308b; stop else ([\u3044\u3044\u3048]) |\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff0fID\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc| :\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3092\u53d6\u5f97\u3059\u308b; endif |\u8a8d\u8a3cAPI| if (\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4?) then ([\u3044\u3044\u3048]) :\u5931\u6557\u8a66\u884c\u56de\u6570\u3092\u5897\u52a0\u3059\u308b; |\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30a2\u30d7\u30ea| :&#8221;\u7121\u52b9\u306a\u8cc7\u683c\u60c5\u5831&#8221;\u30a8\u30e9\u30fc\u3092\u8868\u793a\u3059\u308b; stop else ([\u306f\u3044]) <a href=\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":6976,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09","_yoast_wpseo_metadesc":"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002","_eb_attr":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[25,43,7],"tags":[],"class_list":["post-6975","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai","category-ai-diagramming-chatbot","category-uml"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09<\/title>\n<meta name=\"description\" content=\"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09\" \/>\n<meta property=\"og:description\" content=\"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\" \/>\n<meta property=\"og:site_name\" content=\"Visual Paradigm Guides Japanese\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-27T03:43:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1312\" \/>\n\t<meta property=\"og:image:height\" content=\"816\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpjick\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"4\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\"},\"headline\":\"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\",\"datePublished\":\"2026-07-27T03:43:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\"},\"wordCount\":109,\"image\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\",\"articleSection\":[\"AI\",\"AI Diagramming Chatbot\",\"UML\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\",\"url\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\",\"name\":\"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09\",\"isPartOf\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\",\"datePublished\":\"2026-07-27T03:43:13+00:00\",\"author\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/#\/schema\/person\/0903402359ce4a6eeeaa70bb7204a2c6\"},\"description\":\"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage\",\"url\":\"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\",\"contentUrl\":\"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg\",\"width\":1312,\"height\":816},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/guides.visual-paradigm.com\/ja\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AI\",\"item\":\"https:\/\/guides.visual-paradigm.com\/ja\/category\/ai\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/guides.visual-paradigm.com\/ja\/#website\",\"url\":\"https:\/\/guides.visual-paradigm.com\/ja\/\",\"name\":\"Visual Paradigm Guides Japanese\",\"description\":\"Smart guides for an AI-driven world\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/guides.visual-paradigm.com\/ja\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09","description":"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/","og_locale":"ja_JP","og_type":"article","og_title":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09","og_description":"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002","og_url":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/","og_site_name":"Visual Paradigm Guides Japanese","article_published_time":"2026-07-27T03:43:13+00:00","og_image":[{"width":1312,"height":816,"url":"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"vpjick","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"4\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#article","isPartOf":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/"},"headline":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3","datePublished":"2026-07-27T03:43:13+00:00","mainEntityOfPage":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/"},"wordCount":109,"image":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage"},"thumbnailUrl":"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg","articleSection":["AI","AI Diagramming Chatbot","UML"],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/","url":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/","name":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u304a\u3088\u3073OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\uff08PlantUML\u304a\u3088\u3073AI\uff09","isPartOf":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/#website"},"primaryImageOfPage":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage"},"image":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage"},"thumbnailUrl":"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg","datePublished":"2026-07-27T03:43:13+00:00","author":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/#\/schema\/person\/0903402359ce4a6eeeaa70bb7204a2c6"},"description":"UML\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u3001MFA\u3001\u304a\u3088\u3073OAuth 2.0\u8a8d\u53ef\u30b3\u30fc\u30c9\u30d5\u30ed\u30fc\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002PlantUML\u30b3\u30fc\u30c9\u3068AI UML\u30c4\u30fc\u30eb\u306e\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u542b\u307f\u307e\u3059\u3002","breadcrumb":{"@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#primaryimage","url":"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg","contentUrl":"https:\/\/guides.visual-paradigm.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/07\/oauth-pkce-mfa-activity-diagram-guide.jpg","width":1312,"height":816},{"@type":"BreadcrumbList","@id":"https:\/\/guides.visual-paradigm.com\/ja\/user-authentication-oauth2-activity-diagrams\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/guides.visual-paradigm.com\/ja\/"},{"@type":"ListItem","position":2,"name":"AI","item":"https:\/\/guides.visual-paradigm.com\/ja\/category\/ai\/"},{"@type":"ListItem","position":3,"name":"\u30e6\u30fc\u30b6\u30fc\u8a8d\u8a3c\u3068OAuth 2.0\u30d5\u30ed\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u56f3"}]},{"@type":"WebSite","@id":"https:\/\/guides.visual-paradigm.com\/ja\/#website","url":"https:\/\/guides.visual-paradigm.com\/ja\/","name":"Visual Paradigm Guides Japanese","description":"Smart guides for an AI-driven world","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/guides.visual-paradigm.com\/ja\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"}]}},"_links":{"self":[{"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/posts\/6975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/comments?post=6975"}],"version-history":[{"count":0,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/posts\/6975\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/media\/6976"}],"wp:attachment":[{"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/media?parent=6975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/categories?post=6975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guides.visual-paradigm.com\/ja\/wp-json\/wp\/v2\/tags?post=6975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}