{"id":10707,"date":"2026-03-05T14:14:54","date_gmt":"2026-03-05T06:14:54","guid":{"rendered":"https:\/\/www.archimetric.com\/ja\/understanding-uml-multiplicity\/"},"modified":"2026-03-05T14:14:54","modified_gmt":"2026-03-05T06:14:54","slug":"understanding-uml-multiplicity","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/ja\/understanding-uml-multiplicity\/","title":{"rendered":"UML\u306e\u591a\u91cd\u6027\u306e\u7406\u89e3"},"content":{"rendered":"<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u304a\u3088\u3073\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u5206\u91ce\u306b\u304a\u3044\u3066\u3001\u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08UML\uff09\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u69cb\u9020\u3068\u52d5\u4f5c\u3092\u53ef\u8996\u5316\u3057\u6587\u66f8\u5316\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002UML\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u6982\u5ff5\u306e\u4e00\u3064\u304c<a href=\"https:\/\/blog.visual-paradigm.com\/what-is-multiplicity\/\"><strong>\u591a\u91cd\u6027<\/strong><\/a>\u3067\u3042\u308a\u3001\u95a2\u9023\u306e\u4e00\u65b9\u306e\u7aef\u306b\u53c2\u52a0\u3067\u304d\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u306b\u95a2\u3059\u308b\u5236\u7d04\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u591a\u91cd\u6027\u306e\u6982\u5ff5\u3001\u305d\u306e\u91cd\u8981\u6027\u3001\u304a\u3088\u3073UML\u56f3\u306b\u304a\u3051\u308b\u305d\u306e\u9069\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h4>\u591a\u91cd\u6027\u3068\u306f\u4f55\u304b\uff1f<\/h4>\n<p><a href=\"https:\/\/blog.visual-paradigm.com\/what-is-multiplicity\/\">UML\u306b\u304a\u3051\u308b\u591a\u91cd\u6027<\/a>\u306f\u3001\u95a2\u9023\u306e\u4e00\u65b9\u306e\u7aef\u306b\u53c2\u52a0\u3067\u304d\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u3092\u6307\u5b9a\u3059\u308b\u5236\u7d04\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u300c1\u4eba\u306e\u4eba\u7269\u304c\u6240\u6709\u3067\u304d\u308b\u8eca\u306e\u6570\u306f\u3044\u304f\u3064\u3067\u3059\u304b\uff1f\u300d\u3084\u300c1\u53f0\u306e\u8eca\u3092\u904b\u8ee2\u3067\u304d\u308b\u4eba\u306f\u4f55\u4eba\u3044\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3063\u305f\u8cea\u554f\u306b\u7b54\u3048\u307e\u3059\u3002\u591a\u91cd\u6027\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u5404\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u3059\u308b\u304b\u306e\u30eb\u30fc\u30eb\u3092\u8a2d\u5b9a\u3067\u304d\u3001\u3053\u308c\u3089\u306e\u95a2\u4fc2\u3092\u660e\u78ba\u304b\u3064\u7c21\u6f54\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u591a\u91cd\u6027\u306e\u8868\u73fe\u65b9\u6cd5<\/h4>\n<p>\u591a\u91cd\u6027\u306f\u3001\u95a2\u9023\u306b\u8a31\u5bb9\u3055\u308c\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6700\u5c0f\u6570\u3068\u6700\u5927\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u7bc4\u56f2\u3068\u3057\u3066\u901a\u5e38\u8868\u73fe\u3055\u308c\u307e\u3059\u3002\u591a\u91cd\u6027\u3092\u8868\u3059\u5f62\u5f0f\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u6b63\u78ba\u306a\u6570<\/strong>\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6b63\u78ba\u306a\u6570\u3092\u793a\u3059\u5358\u4e00\u306e\u6570\u5024\u3002<\/li>\n<li><strong>\u7bc4\u56f2<\/strong>\uff1a\u4e8c\u3064\u306e\u70b9\uff08..\uff09\u3067\u533a\u5207\u3089\u308c\u305f\u6570\u5024\u306e\u30da\u30a2\u3067\u3001\u6700\u5c0f\u6570\u3068\u6700\u5927\u6570\u3092\u793a\u3059\u3002<\/li>\n<li><strong>\u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff08*\uff09<\/strong>\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u304c\u7121\u5236\u9650\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u3002<\/li>\n<\/ul>\n<p>\u305f\u3068\u3048\u3070\uff1a<\/p>\n<ul>\n<li><code class=\"\">1<\/code>\uff1a\u6b63\u78ba\u306b1\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<\/li>\n<li><code class=\"\">0..1<\/code>\uff1a0\u500b\u307e\u305f\u306f1\u500b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<\/li>\n<li><code class=\"\">1..*<\/code>\uff1a\u5c11\u306a\u304f\u3068\u30821\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3001\u4e0a\u9650\u306a\u3057\u3002<\/li>\n<li><code class=\"\">*<\/code>\uff1a0\u3092\u542b\u3080\u4efb\u610f\u306e\u6570\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<\/li>\n<\/ul>\n<p><img alt=\"What is Multiplicity\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/05-multiplicities-examples.png\"\/><\/p>\n<h4>\u95a2\u9023\u306b\u304a\u3051\u308b\u591a\u91cd\u6027\u306e\u9069\u7528<\/h4>\n<p>\u30af\u30e9\u30b9\u9593\u306e\u95a2\u9023\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u969b\u3001\u591a\u91cd\u6027\u306f\u95a2\u9023\u306e\u5404\u7aef\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001<code class=\"\">Person<\/code>\u30af\u30e9\u30b9\u3068<code class=\"\">Car<\/code>\u30af\u30e9\u30b9\u3068\u306e\u95a2\u9023\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n<ul>\n<li><strong>\u8cea\u554f1<\/strong>: 1\u4eba\u306e\u4eba\u7269\u304c\u6240\u6709\u3067\u304d\u308b\u8eca\u306e\u6570\u306f\u3044\u304f\u3064\u3067\u3059\u304b\uff1f<\/li>\n<li><strong>\u8cea\u554f2<\/strong>: \u3042\u308b\u8eca\u3092\u904b\u8ee2\u3067\u304d\u308b\u4eba\u306e\u6570\u306f\u3044\u304f\u3064\u3067\u3059\u304b\uff1f<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u8cea\u554f\u3078\u306e\u56de\u7b54\u306f\u3001\u95a2\u9023\u306b\u304a\u3051\u308b\u305d\u308c\u305e\u308c\u306e\u30af\u30e9\u30b9\u306e\u96a3\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002\u4eba\u7269\u304c0\u53f0\u4ee5\u4e0a\u3001\u8907\u6570\u306e\u8eca\u3092\u6240\u6709\u3067\u304d\u308b\u5834\u5408\u3001\u8eca\u306e\u30af\u30e9\u30b9\u306e\u8fd1\u304f\u306b\u591a\u91cd\u5ea6\u304c\u8a18\u8f09\u3055\u308c\u307e\u3059\u3002<code class=\"\">\u8eca<\/code>\u30af\u30e9\u30b9\u306b\u306f<code class=\"\">0..*<\/code>\u9006\u306b\u3001\u8eca\u30921\u4eba\u4ee5\u4e0a\u3001\u8907\u6570\u306e\u4eba\u304c\u904b\u8ee2\u3067\u304d\u308b\u5834\u5408\u3001\u4eba\u7269\u306e\u30af\u30e9\u30b9\u306e\u8fd1\u304f\u306b\u591a\u91cd\u5ea6\u304c\u8a18\u8f09\u3055\u308c\u307e\u3059\u3002<code class=\"\">\u4eba\u7269<\/code>\u30af\u30e9\u30b9\u306b\u306f<code class=\"\">1..*<\/code>.<\/p>\n<h4>\u4f8b\uff1a\u51fa\u8377\u3068\u88fd\u54c1<\/h4>\n<p>\u4f8b\u3092\u793a\u3059\u305f\u3081\u306b\u3001\u6b21\u306e\u72b6\u6cc1\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<code class=\"\">\u51fa\u8377<\/code>\u306b\u306f\u6700\u4f4e1\u3064\u4ee5\u4e0a\u306e<code class=\"\">\u88fd\u54c1<\/code>\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5fc5\u8981\u306a\u6570\u3060\u3051\u88fd\u54c1\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u95a2\u9023\u306e<code class=\"\">\u88fd\u54c1<\/code>\u5074\u306e\u591a\u91cd\u5ea6\u306f<code class=\"\">1..*<\/code>\u3067\u3042\u308a\u3001\u51fa\u8377\u306b\u306f\u6700\u4f4e1\u3064\u306e\u88fd\u54c1\u304c\u5fc5\u8981\u3067\u3059\u304c\u3001\u8907\u6570\u306e\u88fd\u54c1\u3092\u542b\u3080\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u8868\u8a18\u6cd5\u3068\u8a18\u53f7<\/h4>\n<p>UML\u56f3\u3067\u306f\u3001\u591a\u91cd\u5ea6\u306f\u7279\u5b9a\u306e\u8868\u8a18\u6cd5\u3092\u4f7f\u3063\u3066\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30a2\u30b9\u30bf\u30ea\u30b9\u30af (*)<\/strong>: \u7121\u5236\u9650\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6570\u3092\u8868\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u7bc4\u56f2 (<code class=\"\">min..max<\/code>)<\/strong>\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6700\u5c0f\u6570\u3068\u6700\u5927\u6570\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u6b63\u78ba\u306a\u6570<\/strong>\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6b63\u78ba\u306a\u6570\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u8868\u8a18\u306f\u3001\u30af\u30e9\u30b9\u9593\u306e\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3059\u308b\u5236\u7d04\u3084\u30eb\u30fc\u30eb\u3092\u793a\u3059\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>\u4f8b1\uff1aPerson\u3068Car<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">Person<\/code>\u306f0\u53f0\u4ee5\u4e0a\u591a\u304f\u306e<code class=\"\">Cars<\/code>\u3092\u6240\u6709\u3067\u304d\u3001<code class=\"\">Car<\/code>\u306f1\u4eba\u4ee5\u4e0a\u591a\u304f\u306e<code class=\"\">People<\/code>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8a9b1e6.png\"\/><\/p>\n<h3>\u4f8b2\uff1aShipment\u3068Product<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">Shipment<\/code>\u306f\u5c11\u306a\u304f\u3068\u30821\u3064\u306e<code class=\"\">Product<\/code>\u3092\u542b\u307e\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304c\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u591a\u304f\u306eProduct\u3092\u542b\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbO8piWio4tDAr6evkLIKD1EpiyhISpCAmueoayfJIufrj2qKl39B2wnWGhOyNBLydB1D4C5eNepyv9pIbDIKpppO8OYjCD4OFhXrYePwkbfAIdewi9OC3Ej561kKG1gSaZDIm6x6W00 (321\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8b3ea92.png\"\/><\/p>\n<h3>\u4f8b3\uff1aLibrary\u3068Book<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">Library<\/code>\u306f\u591a\u304f\u306e<code class=\"\">Books<\/code>\u3092\u6240\u6709\u3067\u304d\u3001<code class=\"\">Book<\/code>\u306f1\u3064\u306e<code class=\"\">Library<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbRmoKmgIYogLAZcvL9GqCv8B7RApyykrj2q0ieKbzY0U7QyNBMyN30D816ewhJyqhmKppoe4H0zO2PK0yni9KCb1LrT1IK3FJqj9OW1LWh9-NabYPbvnGf0unrIyrB0RW80 (210\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8be004c.png\"\/><\/p>\n<h3>\u4f8b4\uff1a\u6559\u5e2b\u3068\u751f\u5f92<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">\u6559\u5e2b<\/code>\u306f\u591a\u304f\u306e<code class=\"\">\u751f\u5f92<\/code>\u3092\u6559\u3048\u3089\u308c\u3001\u307e\u305f<code class=\"\">\u751f\u5f92<\/code>\u306f1\u4eba\u306e<code class=\"\">\u6559\u5e2b<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbO8IKrCpaWjKgZcvL9Gq2u1yug3IqfJKlDAYZKqhHHyCejBRA02ThnSjRnSCArGGPZMnDBqZ1AdIgY18ArG9bGJp2ObGoK5NLq59GCzFIqbk25M2b2x5O2MEAJcfO3T2000 (279\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8c80d65.png\"\/><\/p>\n<h3>\u4f8b5\uff1a\u6ce8\u6587\u3068\u5546\u54c1<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">\u6ce8\u6587<\/code>\u306f1\u3064\u4ee5\u4e0a\u306e<code class=\"\">\u5546\u54c1<\/code>\u3092\u6709\u3057\u3001\u307e\u305f<code class=\"\">\u5546\u54c1<\/code>\u306f0\u3064\u4ee5\u4e0a\u306e<code class=\"\">\u6ce8\u6587<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbRmBqf9BLAevkLIKD1EpiyhISpCA_OiISqjrj2qKl39B2wn0V7iUBbgURbWUa0YK2q5GDFyqy2687I0kJ0j40kK3FNqj9GKT7KLb0p0BB0PLWemAnM0oXrIyrB0BWC0 (239\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8d1e04f.png\"\/><\/p>\n<h3>\u4f8b6\uff1a\u4f1a\u793e\u3068\u793e\u54e1<\/h3>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code class=\"\">\u4f1a\u793e<\/code>\u306f\u591a\u304f\u306e<code class=\"\">\u793e\u54e1<\/code>\u3092\u6709\u3057\u3001\u307e\u305f<code class=\"\">\u793e\u54e1<\/code>\u306f1\u3064\u306e<code class=\"\">\u4f1a\u793e<\/code>.<\/p>\n<p><img alt=\"SoWkIImgAStDuULApaaiBbPmpiyjICohLAZcvL9GqCv8B7RDBSZ9hqnDBTRGj5BmoImkiO69sF5orV9omJJ2HA4wo_EBielTyekWve4qGvbGNJ2Bb0oL57Hr5PGCzFIqb12cM2caWfd52a1h75BpKi1k1000 (277\u00d7218)\" decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2024\/12\/img_67652d8db7999.png\"\/><\/p>\n<p>\u3053\u308c\u3089\u306e\u4f8b\u306f\u3001\u591a\u91cd\u6027\u304c\u95a2\u9023\u306b\u53c2\u52a0\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3066\u304a\u308a\u3001\u95a2\u4fc2\u3092\u660e\u78ba\u304b\u3064\u7c21\u6f54\u306b\u8868\u73fe\u3059\u308b\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/class-diagram-tutorial\/\">UML\u306e\u30af\u30e9\u30b9<\/a> \u56f3\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u591a\u91cd\u6027\u306f\u3001\u95a2\u9023\u306b\u53c2\u52a0\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6570\u3092\u69cb\u9020\u7684\u306b\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306eUML\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3067\u3059\u3002\u591a\u91cd\u6027\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u8a2d\u8a08\u8005\u306f\u30af\u30e9\u30b9\u9593\u306e\u95a2\u4fc2\u304c\u660e\u78ba\u3067\u7406\u89e3\u3055\u308c\u3084\u3059\u304f\u306a\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3067\u304d\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u5358\u7d14\u306a\u95a2\u9023\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u8907\u96d1\u306a\u95a2\u4fc2\u3092\u6271\u3046\u5834\u5408\u3067\u3082\u3001\u591a\u91cd\u6027\u3092\u7406\u89e3\u3057\u9069\u7528\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306aUML\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<h2>\u30ea\u30bd\u30fc\u30b9<\/h2>\n<ol>\n<li><strong>Visual Paradigm\u3067\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u3092\u63cf\u304f<\/strong>\n<ul>\n<li>Visual Paradigm. (n.d.).<a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85375_drawingentit.html\">Visual Paradigm\u3067\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u3092\u63cf\u304f<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/3563\/3564\/85375_drawingentit.html\" rel=\"noopener\" target=\"_blank\">4<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3 \u2013 \u591a\u91cd\u6027<\/strong>\n<ul>\n<li>Stack Overflow. (n.d.).<a href=\"https:\/\/stackoverflow.com\/questions\/41731377\/entity-relationship-diagram-multiplicities\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3 \u2013 \u591a\u91cd\u6027<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/41731377\/entity-relationship-diagram-multiplicities\" rel=\"noopener\" target=\"_blank\">5<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3<\/strong>\n<ul>\n<li>GitHub. (n.d.).<a href=\"https:\/\/github.com\/weston-bailey\/entity-relationship-diagrams\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/github.com\/weston-bailey\/entity-relationship-diagrams\" rel=\"noopener\" target=\"_blank\">6<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>UML\u306e\u5f62\u72b6\u306b\u591a\u91cd\u6027\u3092\u6307\u5b9a\u3059\u308b<\/strong>\n<ul>\n<li>Microsoft Support. (n.d.).<a href=\"https:\/\/support.microsoft.com\/en-us\/office\/specify-multiplicity-on-an-uml-shape-e2dcac55-e9b6-40fa-a976-eb5f6ef2df3b\">UML\u306e\u5f62\u72b6\u306b\u591a\u91cd\u6027\u3092\u6307\u5b9a\u3059\u308b<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/support.microsoft.com\/en-us\/office\/specify-multiplicity-on-an-uml-shape-e2dcac55-e9b6-40fa-a976-eb5f6ef2df3b\" rel=\"noopener\" target=\"_blank\">7<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>\n<ul>\n<li>Visual Paradigm. (n.d.).<a href=\"https:\/\/www.visual-paradigm.com\/guide\/data-modeling\/what-is-entity-relationship-diagram\/\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.visual-paradigm.com\/guide\/data-modeling\/what-is-entity-relationship-diagram\/\" rel=\"noopener\" target=\"_blank\">8<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Visual Paradigm\u306eER\u56f3\u3067\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u8ffd\u52a0<\/strong>\n<ul>\n<li>Stack Overflow. (n.d.).\u00a0<a href=\"https:\/\/stackoverflow.com\/questions\/36464950\/visual-paradigm-er-diagram-adding-tables\">Visual Paradigm\u306eER\u56f3\u3067\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u8ffd\u52a0<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/36464950\/visual-paradigm-er-diagram-adding-tables\" rel=\"noopener\" target=\"_blank\">9<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Visual Paradigm\u3067\u30af\u30e9\u30b9\u56f3\u306b\u591a\u91cd\u6027\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/strong>\n<ul>\n<li>TheNewsIndependent. (2020\u5e7412\u670829\u65e5).\u00a0<a href=\"https:\/\/www.thenewsindependent.com\/how-do-you-add-a-multiplicity-to-a-class-diagram-in-visual-paradigm\/\">Visual Paradigm\u3067\u30af\u30e9\u30b9\u56f3\u306b\u591a\u91cd\u6027\u3092\u8ffd\u52a0\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/www.thenewsindependent.com\/how-do-you-add-a-multiplicity-to-a-class-diagram-in-visual-paradigm\/\" rel=\"noopener\" target=\"_blank\">10<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\uff08ER\uff09\u56f3\u5165\u9580\u30ac\u30a4\u30c9<\/strong>\n<ul>\n<li>Visual Paradigm Blog. (2023\u5e749\u670821\u65e5).\u00a0<a href=\"https:\/\/blog.visual-paradigm.com\/beginners-guide-to-entity-relationship-er-diagrams\/\">\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\uff08ER\uff09\u56f3\u5165\u9580\u30ac\u30a4\u30c9<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/blog.visual-paradigm.com\/beginners-guide-to-entity-relationship-er-diagrams\/\" rel=\"noopener\" target=\"_blank\">11<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u591a\u91cd\u6027\u3068\u57fa\u6570<\/strong>\n<ul>\n<li>Stack Overflow. (n.d.).\u00a0<a href=\"https:\/\/stackoverflow.com\/questions\/17877582\/multiplicity-vs-cardinality\">\u591a\u91cd\u6027\u3068\u57fa\u6570<\/a>\u00a0<a class=\"mi-ref cursor-pointer align-super text-muted-foreground fade-in hover:underline\" data-state=\"closed\" href=\"https:\/\/stackoverflow.com\/questions\/17877582\/multiplicity-vs-cardinality\" rel=\"noopener\" target=\"_blank\">12<\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u304a\u3088\u3073\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u5206\u91ce\u306b<\/p>\n","protected":false},"author":3479,"featured_media":10708,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/05-multiplicities-examples.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-10707","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 - 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