{"id":2129,"date":"2026-03-28T01:54:25","date_gmt":"2026-03-28T01:54:25","guid":{"rendered":"https:\/\/www.viz-note.com\/ja\/modeling-event-driven-architectures-c4-relationship-lines\/"},"modified":"2026-03-28T01:54:25","modified_gmt":"2026-03-28T01:54:25","slug":"modeling-event-driven-architectures-c4-relationship-lines","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/ja\/modeling-event-driven-architectures-c4-relationship-lines\/","title":{"rendered":"C4 \u30e2\u30c7\u30eb\u30ac\u30a4\u30c9\uff1aC4 \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u30e9\u30a4\u30f3\u3092\u7528\u3044\u305f\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30e2\u30c7\u30ea\u30f3\u30b0"},"content":{"rendered":"<p>\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u306b\u306f\u660e\u78ba\u3055\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u304c\u975e\u540c\u671f\u901a\u4fe1\u306b\u4f9d\u5b58\u3059\u308b\u5834\u5408\u3001\u30c7\u30fc\u30bf\u306e\u30d5\u30ed\u30fc\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u306f\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002C4 \u30e2\u30c7\u30eb\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u69cb\u9020\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u6a19\u6e96\u7684\u306a C4 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306f\u3001\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\uff08EDA\uff09\u306e\u5fae\u5999\u306a\u30cb\u30e5\u30a2\u30f3\u30b9\u3092\u8868\u73fe\u3059\u308b\u3053\u3068\u306b\u3057\u3070\u3057\u3070\u82e6\u6226\u3057\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u66d6\u6627\u3055\u306a\u304f\u30a4\u30d9\u30f3\u30c8\u30d5\u30ed\u30fc\u3001\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u3001\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u3092\u6b63\u78ba\u306b\u63cf\u753b\u3059\u308b\u305f\u3081\u306b\u3001C4 \u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u30e9\u30a4\u30f3\u3092\u3069\u306e\u3088\u3046\u306b\u9069\u5fdc\u3055\u305b\u308b\u304b\u3092\u63a2\u7d22\u3057\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u610f\u5473\u306e\u7cbe\u5ea6\u306b\u7126\u70b9\u3092\u5f53\u3066\u3001\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u4e00\u76ee\u3067\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Infographic explaining how to model Event-Driven Architectures using C4 Model relationship lines, showing line style legend for sync\/async flows, C4 context\/container\/component levels, common EDA patterns like Pub\/Sub and CQRS, and best practices for clear architecture documentation with pastel flat design\" decoding=\"async\" src=\"https:\/\/www.viz-note.com\/wp-content\/uploads\/2026\/03\/c4-eda-relationship-lines-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>\u306a\u305c\u6a19\u6e96\u7684\u306a C4 \u306f EDA \u306b\u5bfe\u3057\u3066\u9069\u5fdc\u304c\u5fc5\u8981\u306a\u306e\u304b \ud83e\udd14<\/h2>\n<p>\u5f93\u6765\u306e C4 \u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u306f\u3001\u5b9f\u7dda\u3092\u7528\u3044\u3066\u30b3\u30f3\u30c6\u30ca\u9593\u306e\u30c7\u30fc\u30bf\u79fb\u52d5\u3092\u793a\u3059\u3053\u3068\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u540c\u671f\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u30fb\u30ec\u30b9\u30dd\u30f3\u30b9\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u3053\u308c\u306f\u76f4\u611f\u7684\u3067\u3059\u3002\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5165\u308a\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u51fa\u3066\u304d\u307e\u3059\u3002\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u3001\u9593\u63a5\u7684\u306a\u5c64\u3092\u5c0e\u5165\u3057\u307e\u3059\u3002\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u304c\u30a4\u30d9\u30f3\u30c8\u3092\u653e\u51fa\u3057\u30011 \u3064\u4ee5\u4e0a\u306e\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u304c\u5f8c\u3067\u305d\u308c\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u63a5\u7d9a\u306f\u3057\u3070\u3057\u3070\u7de9\u304f\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u306f\u5206\u96e2\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u540c\u671f\u30d5\u30ed\u30fc\uff1a<\/strong>\u547c\u3073\u51fa\u3057\u5143\u304c\u7d50\u679c\u3092\u5f85\u6a5f\u3059\u308b\u76f4\u63a5\u547c\u3073\u51fa\u3057\u3002<\/li>\n<li><strong>\u975e\u540c\u671f\u30d5\u30ed\u30fc\uff1a<\/strong>\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u304c\u5f85\u6a5f\u3057\u306a\u3044\u3001\u767a\u5c04\u3057\u3066\u5fd8\u308c\u308b\uff08fire-and-forget\uff09\u30a4\u30d9\u30f3\u30c8\u3002<\/li>\n<li><strong>\u30d7\u30c3\u30b7\u30e5 vs. \u30d7\u30eb\uff1a<\/strong>\u30b5\u30fc\u30d3\u30b9\u306f\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u306e\u304b\u3001\u305d\u308c\u3068\u3082\u53d6\u5f97\u3059\u308b\u306e\u304b\uff1f<\/li>\n<\/ul>\n<p>\u30a4\u30d9\u30f3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u6a19\u6e96\u7684\u306a\u5b9f\u7dda\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8aad\u8005\u304c\u63a5\u7d9a\u304c\u540c\u671f\u3067\u3042\u308b\u3068\u8aa4\u89e3\u3059\u308b\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u30aa\u30f3\u30dc\u30fc\u30c7\u30a3\u30f3\u30b0\u6642\u306b\u6df7\u4e71\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u30e9\u30a4\u30f3\u306e\u8996\u899a\u7684\u8a00\u8a9e\u3092\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30a4\u30d9\u30f3\u30c8\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u304a\u3051\u308b C4 \u30ec\u30d9\u30eb\u306e\u7406\u89e3 \ud83c\udfd7\ufe0f<\/h2>\n<p>\u7dda\u3092\u5f15\u304f\u524d\u306b\u3001\u305d\u308c\u3089\u304c\u63a5\u7d9a\u3059\u308b\u30dc\u30c3\u30af\u30b9\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002C4 \u30e2\u30c7\u30eb\u306e\u5404\u30ec\u30d9\u30eb\u306f\u3001\u7570\u306a\u308b\u5bfe\u8c61\u8005\u3068\u62bd\u8c61\u5316\u5c64\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>1. \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30ec\u30d9\u30eb\uff1a\u5168\u4f53\u50cf \ud83c\udf0d<\/h3>\n<p>\u6700\u9ad8\u30ec\u30d9\u30eb\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5883\u754c\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u3001<strong>\u30b7\u30b9\u30c6\u30e0<\/strong>\u306f\u3001\u5916\u90e8\u306e\u523a\u6fc0\u306b\u5fdc\u7b54\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u306e\u96c6\u5408\u4f53\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4eba\uff1a<\/strong>\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5f15\u304d\u8d77\u3053\u3059\u30e6\u30fc\u30b6\u30fc\uff08\u4f8b\uff1a\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\uff09\u3002<\/li>\n<li><strong>\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong>\u30c7\u30fc\u30bf\u3092\u4f9b\u7d66\u3059\u308b\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3 API \u3084\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u3002<\/li>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong>\u3059\u3079\u3066\u306e\u30a4\u30d9\u30f3\u30c8\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u3068\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u306e\u96c6\u5408\u4f53\u3002<\/li>\n<\/ul>\n<p>\u3053\u3053\u3067\u306f\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u30e9\u30a4\u30f3\u306f<strong>\u7d71\u5408\u30dd\u30a4\u30f3\u30c8<\/strong>\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3079\u304d\u3067\u3059\u3002\u4eba\u9593\u304c\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308c\u3070\u3001\u305d\u308c\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u3059\u3002\u6c7a\u6e08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c Webhook \u3092\u9001\u4fe1\u3059\u308c\u3070\u3001\u305d\u308c\u306f\u30a4\u30d9\u30f3\u30c8\u3067\u3059\u3002\u3053\u308c\u3089\u3092\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30ec\u30d9\u30eb\u3067\u533a\u5225\u3059\u308b\u3053\u3068\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u30c8\u30ea\u30ac\u30fc\u3059\u308b\u3082\u306e\u304c\u4f55\u304b\u3068\u3044\u3046\u6df7\u4e71\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n<h3>2. \u30b3\u30f3\u30c6\u30ca\u30ec\u30d9\u30eb\uff1a\u30b5\u30fc\u30d3\u30b9\u3068\u30b9\u30c8\u30ea\u30fc\u30e0 \ud83d\udcbb<\/h3>\n<p>\u3053\u3053\u304c\u9b54\u6cd5\u304c\u8d77\u304d\u308b\u5834\u6240\u3067\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u306f\u30c7\u30d7\u30ed\u30a4\u53ef\u80fd\u306a\u30e6\u30cb\u30c3\u30c8\uff08\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30ad\u30e5\u30fc\uff09\u3092\u8868\u3057\u307e\u3059\u3002EDA \u3067\u306f\u3001\u3053\u306e\u30ec\u30d9\u30eb\u3067\u30b5\u30fc\u30d3\u30b9\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u30d6\u30ed\u30fc\u30ab\u30fc\u3084\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u3068\u3069\u306e\u3088\u3046\u306b\u901a\u4fe1\u3059\u308b\u304b\u3092\u793a\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ca\uff1a<\/strong>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u51e6\u7406\u3059\u308b\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u30b3\u30f3\u30c6\u30ca:<\/strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u307e\u305f\u306f\u30a4\u30d9\u30f3\u30c8\u30b9\u30c8\u30a2\u3002<\/li>\n<li><strong>\u30ad\u30e5\u30fc\/\u30c8\u30d4\u30c3\u30af\u30b3\u30f3\u30c6\u30ca:<\/strong>\u4ef2\u4ecb\u5f79\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u30d6\u30ed\u30fc\u30ab\u30fc\u3002<\/li>\n<\/ul>\n<p>\u3053\u3053\u3067\u306e\u95a2\u4fc2\u7dda\u306f\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u300c<strong>\u30a4\u30d9\u30f3\u30c8\u30c1\u30e3\u30cd\u30eb<\/strong>\u300d\u3092\u8868\u3057\u307e\u3059\u3002\u5b9f\u7dda\u306f\u76f4\u63a5\u306e API \u547c\u3073\u51fa\u3057\u3092\u610f\u5473\u3057\u3001\u70b9\u7dda\u306f\u30a4\u30d9\u30f3\u30c8\u8cfc\u8aad\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3053\u306e\u533a\u5225\u306f\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u3068\u4fe1\u983c\u6027\u3092\u7406\u89e3\u3059\u308b\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<h3>3. \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30ec\u30d9\u30eb\uff1a\u5185\u90e8\u30ed\u30b8\u30c3\u30af \ud83e\udde9<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u7279\u5b9a\u306e\u8cac\u4efb\u3092\u62c5\u3044\u307e\u3059\u3002EDA \u3067\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u306f\u901a\u5e38\u3001\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3001\u30cf\u30f3\u30c9\u30e9\u30fc\u3001\u5909\u63db\u5668\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc:<\/strong>\u7740\u4fe1\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5f85\u6a5f\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30bb\u30c3\u30b5:<\/strong>\u30a4\u30d9\u30f3\u30c8\u30c7\u30fc\u30bf\u3092\u5909\u63db\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3002<\/li>\n<li><strong>\u30ea\u30dd\u30b8\u30c8\u30ea:<\/strong>\u72b6\u614b\u5909\u66f4\u3092\u6c38\u7d9a\u5316\u3059\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u30ec\u30d9\u30eb\u3067\u306e\u95a2\u4fc2\u7dda\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u5185\u306e\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u30a4\u30d9\u30f3\u30c8\u304c\u3069\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u66f4\u65b0\u306b\u5909\u63db\u3055\u308c\u308b\u304b\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>EDA \u306b\u304a\u3051\u308b\u95a2\u4fc2\u7dda\u306e\u610f\u5473 \ud83d\udccf<\/h2>\n<p>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u56f3\u306b\u304a\u3051\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306f\u3001\u7dda\u30b9\u30bf\u30a4\u30eb\u306e\u66d6\u6627\u3055\u3067\u3059\u3002C4 \u30e2\u30c7\u30eb\u3067\u306f\u3001\u7dda\u306f\u901a\u5e38\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3092\u8868\u3057\u307e\u3059\u304c\u3001EDA \u3067\u306f\u5236\u5fa1\u30d5\u30ed\u30fc\u3068\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u3001\u304a\u3088\u3073\u540c\u671f\u3068\u975e\u540c\u671f\u3092\u533a\u5225\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u7dda\u30b9\u30bf\u30a4\u30eb\u306e\u5b9a\u7fa9<\/h3>\n<table>\n<tr>\n<th>\u7dda\u30b9\u30bf\u30a4\u30eb<\/th>\n<th>\u610f\u5473<\/th>\n<th>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/th>\n<\/tr>\n<tr>\n<td>\u5b9f\u7dda<\/td>\n<td>\u540c\u671f\u547c\u3073\u51fa\u3057<\/td>\n<td>API \u30ea\u30af\u30a8\u30b9\u30c8 \/ HTTP \u547c\u3073\u51fa\u3057<\/td>\n<\/tr>\n<tr>\n<td>\u70b9\u7dda<\/td>\n<td>\u975e\u540c\u671f\u30a4\u30d9\u30f3\u30c8<\/td>\n<td>\u30e1\u30c3\u30bb\u30fc\u30b8\u30d6\u30ed\u30fc\u30ab\u30fc\u306e\u8cfc\u8aad<\/td>\n<\/tr>\n<tr>\n<td>\u4e8c\u91cd\u7dda<\/td>\n<td>\u53cc\u65b9\u5411\u540c\u671f<\/td>\n<td>\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9\u30d1\u30bf\u30fc\u30f3<\/td>\n<\/tr>\n<tr>\n<td>\u66f2\u7dda<\/td>\n<td>\u30a4\u30d9\u30f3\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0<\/td>\n<td>Kafka \/ \u30c8\u30d4\u30c3\u30af\u8cfc\u8aad<\/td>\n<\/tr>\n<\/table>\n<h3>\u95a2\u4fc2\u306e\u30e9\u30d9\u30eb\u4ed8\u3051<\/h3>\n<p>\u30e9\u30a4\u30f3\u4e0a\u306e\u30e9\u30d9\u30eb\u306f\u6587\u8108\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u300c\u30c7\u30fc\u30bf\u300d\u3068\u3044\u3046\u30e9\u30d9\u30eb\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002\u5177\u4f53\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u8a18\u8ff0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\u304a\u3088\u3073<strong>\u65b9\u5411<\/strong>.<\/p>\n<ul>\n<li><strong>HTTP POST:<\/strong>\u540c\u671f\u30d7\u30c3\u30b7\u30e5\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>WebSocket:<\/strong>\u6c38\u7d9a\u7684\u306a\u63a5\u7d9a\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a4\u30d9\u30f3\u30c8: OrderCreated:<\/strong>\u30a4\u30d9\u30f3\u30c8\u30bf\u30a4\u30d7\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30c8\u30d4\u30c3\u30af: Orders:<\/strong>\u8ad6\u7406\u7684\u306a\u30c1\u30e3\u30cd\u30eb\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u30e9\u30d9\u30eb\u4ed8\u3051\u306e\u969b\u306f\u3001\u3042\u3044\u307e\u3044\u306a\u7528\u8a9e\u3092\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u300c\u30c7\u30fc\u30bf\u30d5\u30ed\u30fc\u300d\u306e\u4ee3\u308f\u308a\u306b\u300c\u6ce8\u6587\u30a4\u30d9\u30f3\u30c8\u300d\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u8aad\u8005\u306e\u8a8d\u77e5\u7684\u8ca0\u8377\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u4e00\u822c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u56f3\u793a\u7684\u306a\u8868\u73fe \ud83d\udd04<\/h2>\n<p>\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306f\u7279\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u5f93\u3044\u307e\u3059\u3002\u5404\u30d1\u30bf\u30fc\u30f3\u306fC4\u30e2\u30c7\u30eb\u306b\u304a\u3044\u3066\u56fa\u6709\u306e\u8996\u899a\u7684\u8868\u73fe\u3092\u6301\u3061\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u4e00\u8cab\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u4f5c\u6210\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3>1. Pub\/Sub\uff08\u516c\u958b\/\u8cfc\u8aad\uff09<\/h3>\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u304c\u30a4\u30d9\u30f3\u30c8\u3092\u30d6\u30ed\u30fc\u30ab\u30fc\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u306f\u30c8\u30d4\u30c3\u30af\u3092\u8cfc\u8aad\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8996\u899a\u7684\u8868\u73fe:<\/strong>\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u304b\u3089\u30d6\u30ed\u30fc\u30ab\u30fc\u3078\u306e\u70b9\u7dda\u3002\u30d6\u30ed\u30fc\u30ab\u30fc\u304b\u3089\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u3078\u306e\u70b9\u7dda\u3002<\/li>\n<li><strong>\u30e9\u30d9\u30eb:<\/strong>\u300c\u30c8\u30d4\u30c3\u30af: InventoryUpdates\u300d<\/li>\n<li><strong>\u610f\u5473:<\/strong>\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u306f\u3069\u306e\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u304c\u5b58\u5728\u3059\u308b\u304b\u3092\u77e5\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h3>2. \u30a4\u30d9\u30f3\u30c8\u3092\u4ecb\u3057\u305f\u30ea\u30af\u30a8\u30b9\u30c8\/\u30ec\u30b9\u30dd\u30f3\u30b9<\/h3>\n<p>\u3042\u308b\u30b5\u30fc\u30d3\u30b9\u304c\u30a4\u30d9\u30f3\u30c8\u3092\u9001\u4fe1\u3057\u3001\u5fdc\u7b54\u30a4\u30d9\u30f3\u30c8\u3092\u5f85\u3061\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u9577\u6642\u9593\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d3\u30b8\u30e5\u30a2\u30eb\uff1a<\/strong>\u30d6\u30ed\u30fc\u30ab\u30fc\u3078\u306e\u5b9f\u7dda\u3002\u30d6\u30ed\u30fc\u30ab\u30fc\u304b\u3089\u306e\u70b9\u7dda\u3002<\/li>\n<li><strong>\u30e9\u30d9\u30eb\uff1a<\/strong>\u300c\u30ea\u30af\u30a8\u30b9\u30c8\uff1a\u7a0e\u8a08\u7b97\u300d\u2192\u300c\u5fdc\u7b54\uff1a\u7a0e\u8a08\u7b97\u7d50\u679c\u300d<\/li>\n<li><strong>\u610f\u5473\uff1a<\/strong>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u4f34\u3046\u975e\u540c\u671f\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<h3>3. \u30a4\u30d9\u30f3\u30c8\u30bd\u30fc\u30b7\u30f3\u30b0<\/h3>\n<p>\u72b6\u614b\u306f\u3001\u30a4\u30d9\u30f3\u30c8\u30b9\u30c8\u30a2\u306b\u4fdd\u5b58\u3055\u308c\u305f\u4e00\u9023\u306e\u30a4\u30d9\u30f3\u30c8\u304b\u3089\u5c0e\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d3\u30b8\u30e5\u30a2\u30eb\uff1a<\/strong>\u30a4\u30d9\u30f3\u30c8\u30b9\u30c8\u30a2\u30b3\u30f3\u30c6\u30ca\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30ca\u3002<\/li>\n<li><strong>\u30e9\u30d9\u30eb\uff1a<\/strong>\u300c\u30a4\u30d9\u30f3\u30c8\u306e\u8ffd\u52a0\u300d<\/li>\n<li><strong>\u610f\u5473\uff1a<\/strong>\u771f\u5b9f\u306e\u6e90\u306f\u30ed\u30b0\u3067\u3042\u308a\u3001\u73fe\u5728\u306e\u72b6\u614b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<h3>4. CQRS\uff08\u30b3\u30de\u30f3\u30c9\u30af\u30a8\u30ea\u8cac\u4efb\u5206\u96e2\uff09<\/h3>\n<p>\u66f8\u304d\u8fbc\u307f\u30e2\u30c7\u30eb\u3068\u8aad\u307f\u53d6\u308a\u30e2\u30c7\u30eb\u306e\u5206\u96e2\u3002\u30b3\u30de\u30f3\u30c9\u306f\u72b6\u614b\u3092\u66f4\u65b0\u3057\u3001\u30af\u30a8\u30ea\u306f\u72b6\u614b\u3092\u8aad\u307f\u53d6\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d3\u30b8\u30e5\u30a2\u30eb\uff1a<\/strong>2 \u3064\u306e\u660e\u78ba\u306a\u30d1\u30b9\u3002\u66f8\u304d\u8fbc\u307f\u30d1\u30b9\uff08\u30b3\u30de\u30f3\u30c9\u30cf\u30f3\u30c9\u30e9\uff09\u5bfe \u8aad\u307f\u53d6\u308a\u30d1\u30b9\uff08\u8aad\u307f\u53d6\u308a\u30e2\u30c7\u30eb\uff09\u3002<\/li>\n<li><strong>\u30e9\u30d9\u30eb\uff1a<\/strong>\u300c\u30b3\u30de\u30f3\u30c9\uff1a\u6ce8\u6587\u4f5c\u6210\u300d\u5bfe\u300c\u30af\u30a8\u30ea\uff1a\u6ce8\u6587\u8a73\u7d30\u306e\u53d6\u5f97\u300d<\/li>\n<li><strong>\u610f\u5473\uff1a<\/strong>\u7570\u306a\u308b\u7a2e\u985e\u306e\u30a2\u30af\u30bb\u30b9\u306b\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u907f\u3051\u308b\u3079\u304d\u843d\u3068\u3057\u7a74\u3068\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3 \u26a0\ufe0f<\/h2>\n<p>\u9069\u5207\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u3001\u30df\u30b9\u306f\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002EDA \u306b\u304a\u3051\u308b C4 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API \u3092\u547c\u3073\u51fa\u3059\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5165\u529b\uff1a<\/strong>\u30a4\u30d9\u30f3\u30c8\u30da\u30a4\u30ed\u30fc\u30c9\u3002<\/li>\n<li><strong>\u51fa\u529b\uff1a<\/strong>API \u5fdc\u7b54\u3002<\/li>\n<li><strong>\u95a2\u4fc2\uff1a<\/strong>\u30d7\u30ed\u30c8\u30b3\u30eb\uff08\u4f8b\uff1aREST\u3001GraphQL\uff09\u3092\u793a\u3059\u30e9\u30d9\u30eb\u4ed8\u304d\u306e\u5b9f\u7dda\u3002<\/li>\n<\/ul>\n<h2>\u5c06\u6765\u306e\u9032\u5316\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08 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