{"id":6564,"date":"2026-02-05T10:13:15","date_gmt":"2026-02-05T02:13:15","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/tw\/effective-software-design-balancing-class-diagrams-and-erds\/"},"modified":"2026-02-05T10:13:15","modified_gmt":"2026-02-05T02:13:15","slug":"effective-software-design-balancing-class-diagrams-and-erds","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/tw\/effective-software-design-balancing-class-diagrams-and-erds\/","title":{"rendered":"\u6709\u6548\u7684\u8edf\u9ad4\u8a2d\u8a08\uff1a\u5e73\u8861\u985e\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716"},"content":{"rendered":"<h2><strong>\u5f15\u8a00<\/strong><\/h2>\n<p>\u5728\u8edf\u9ad4\u958b\u767c\u7684\u4e16\u754c\u4e2d\uff0c\u6253\u9020\u4e00\u500b\u7a69\u5065\u4e14\u9ad8\u6548\u7684\u61c9\u7528\u7a0b\u5f0f\u9700\u8981\u4ed4\u7d30\u7684\u898f\u5283\u8207\u8a2d\u8a08\u3002\u6b64\u904e\u7a0b\u7684\u6838\u5fc3\u5169\u5927\u5de5\u5177\u662f\u985e\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u3002\u985e\u5716\u8b93\u6211\u5011\u80fd\u5920\u8996\u89ba\u5316\u8edf\u9ad4\u7684\u7d50\u69cb\u8207\u884c\u70ba\uff0c\u800cERD\u5247\u5e6b\u52a9\u6211\u5011\u5efa\u6a21\u7cfb\u7d71\u7684\u57fa\u790e\u8cc7\u6599\u8207\u8cc7\u6599\u5eab\u7d50\u69cb\u3002\u7136\u800c\uff0c\u6210\u529f\u7684\u8edf\u9ad4\u958b\u767c\u95dc\u9375\u5728\u65bc\u627e\u5230\u9019\u5169\u500b\u91cd\u8981\u9762\u5411\u4e4b\u9593\u7684\u9069\u7576\u5e73\u8861\u3002<\/p>\n<p><img alt=\"Different Inheritance Strategies\" decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/table_per_subclass_27387.png\"\/><\/p>\n<h2>\u985e\u5716\u8207ERD\u7684\u6bd4\u8f03<\/h2>\n<p>\u985e\u5716\u8207\u5be6\u9ad4\u95dc\u4fc2\u5716\uff08ERD\uff09\u662f\u8edf\u9ad4\u958b\u767c\u4e2d\u7528\u4f86\u5448\u73fe\u7cfb\u7d71\u4e0d\u540c\u9762\u5411\u7684\u5169\u7a2e\u4e0d\u540c\u985e\u578b\u5716\u8868\uff0c\u4f46\u5b83\u5011\u4e4b\u9593\u5b58\u5728\u95dc\u806f\uff0c\u56e0\u70ba\u5169\u8005\u90fd\u5354\u52a9\u8edf\u9ad4\u7cfb\u7d71\u7684\u5efa\u6a21\u8207\u8a2d\u8a08\u3002<\/p>\n<ol>\n<li><strong>\u76ee\u7684\u8207\u91cd\u9ede\uff1a<\/strong>\n<ul>\n<li><strong>\u985e\u5716\uff1a<\/strong> \u985e\u5716\u4e3b\u8981\u7528\u65bc\u7269\u4ef6\u5c0e\u5411\u7684\u5efa\u6a21\u8207\u8a2d\u8a08\uff0c\u4ee5\u5448\u73fe\u7cfb\u7d71\u7684\u975c\u614b\u7d50\u69cb\u3002\u5b83\u8457\u91cd\u65bc\u7cfb\u7d71\u4e2d\u7684\u985e\u5225\u6216\u7269\u4ef6\u3001\u5176\u5c6c\u6027\u3001\u65b9\u6cd5\u3001\u95dc\u4fc2\u4ee5\u53ca\u7e7c\u627f\u5c64\u6b21\u3002<\/li>\n<li><strong>ERD\uff08\u5be6\u9ad4\u95dc\u4fc2\u5716\uff09\uff1a<\/strong> ERD\u7528\u65bc\u5efa\u6a21\u7cfb\u7d71\u7684\u8cc7\u6599\u6216\u8cc7\u6599\u5eab\u7d50\u69cb\u3002\u5b83\u8457\u91cd\u65bc\u5be6\u9ad4\uff08\u8cc7\u6599\u8868\uff09\u3001\u5176\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u4ee5\u53ca\u9019\u4e9b\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u3002ERD\u901a\u5e38\u8207\u8cc7\u6599\u5eab\u8a2d\u8a08\u76f8\u95dc\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5143\u7d20\uff1a<\/strong>\n<ul>\n<li><strong>\u985e\u5716\uff1a<\/strong> \u5728\u985e\u5716\u4e2d\uff0c\u60a8\u6703\u627e\u5230\u985e\u5225\u3001\u5c6c\u6027\u3001\u65b9\u6cd5\u3001\u95dc\u806f\u3001\u6cdb\u5316\/\u5c08\u5316\u95dc\u4fc2\uff08\u7e7c\u627f\uff09\u4ee5\u53ca\u4f9d\u8cf4\u95dc\u4fc2\u3002<\/li>\n<li><strong>ERD\uff1a<\/strong> \u5728ERD\u4e2d\uff0c\u60a8\u6703\u627e\u5230\u5be6\u9ad4\uff08\u8cc7\u6599\u8868\uff09\u3001\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u3001\u95dc\u4fc2\uff08\u4e00\u5c0d\u4e00\u3001\u4e00\u5c0d\u591a\u3001\u591a\u5c0d\u591a\uff09\u4ee5\u53ca\u9375\uff08\u4e3b\u9375\u3001\u5916\u9375\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u985e\u5716\u8207ERD\u4e4b\u9593\u7684\u95dc\u4fc2\uff1a<\/strong>\n<ul>\n<li>\u5728\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u61c9\u7528\u7a0b\u5f0f\u7684\u8cc7\u6599\u6a21\u578b\uff08ERD\uff09\u8207\u7269\u4ef6\u5c0e\u5411\u8a2d\u8a08\uff08\u985e\u5716\uff09\u4e4b\u9593\u901a\u5e38\u5b58\u5728\u7dca\u5bc6\u7684\u95dc\u806f\u3002<\/li>\n<li><strong>\u5be6\u9ad4\u5c0d\u61c9\u81f3\u985e\u5225\uff1a<\/strong> \u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0cERD\u4e2d\u7684\u6bcf\u500b\u5be6\u9ad4\u90fd\u53ef\u4ee5\u5c0d\u61c9\u81f3\u985e\u5716\u4e2d\u7684\u4e00\u500b\u985e\u5225\u3002\u4f8b\u5982\uff0c\u82e5\u60a8\u5728ERD\u4e2d\u6709\u4e00\u500b\u300c\u54e1\u5de5\u300d\u5be6\u9ad4\uff0c\u60a8\u53ef\u4ee5\u5728\u985e\u5716\u4e2d\u5efa\u7acb\u4e00\u500b\u300c\u54e1\u5de5\u300d\u985e\u5225\u3002<\/li>\n<li><strong>\u5c6c\u6027\u5c0d\u61c9\uff1a<\/strong> \u5be6\u9ad4\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u53ef\u4ee5\u5c0d\u61c9\u81f3\u985e\u5225\u7684\u5c6c\u6027\u6216\u5c6c\u6027\u3002\u4f8b\u5982\uff0cERD\u4e2d\u7684\u300c\u540d\u7a31\u300d\u5c6c\u6027\u53ef\u80fd\u5c0d\u61c9\u81f3\u985e\u5225\u4e2d\u7684\u300c\u540d\u7a31\u300d\u5c6c\u6027\u3002<\/li>\n<li><strong>\u95dc\u4fc2\u5c0d\u61c9\uff1a<\/strong> ERD\u4e2d\u5be6\u9ad4\u4e4b\u9593\u7684\u95dc\u4fc2\u53ef\u4ee5\u4ee5\u985e\u5716\u4e2d\u985e\u5225\u4e4b\u9593\u7684\u95dc\u806f\u4f86\u8868\u793a\u3002\u4f8b\u5982\uff0cERD\u4e2d\u300c\u8a02\u55ae\u300d\u5be6\u9ad4\u8207\u300c\u5ba2\u6236\u300d\u5be6\u9ad4\u4e4b\u9593\u7684\u4e00\u5c0d\u591a\u95dc\u4fc2\uff0c\u53ef\u4ee5\u5728\u985e\u5716\u4e2d\u4ee5\u300c\u8a02\u55ae\u300d\u985e\u5225\u8207\u300c\u5ba2\u6236\u300d\u985e\u5225\u4e4b\u9593\u7684\u95dc\u806f\u4f86\u8868\u793a\u3002<\/li>\n<li><strong>\u9375\u7684\u5c0d\u61c9\uff1a<\/strong> ERD\u4e2d\u7684\u4e3b\u9375\u6709\u6642\u53ef\u4ee5\u5728\u985e\u5716\u4e2d\u4ee5\u552f\u4e00\u8b58\u5225\u78bc\u6216\u9375\u4f86\u8868\u793a\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4e0d\u540c\u5c64\u6b21\u7684\u62bd\u8c61\uff1a<\/strong>\n<ul>\n<li>\u985e\u5716\u901a\u5e38\u5728\u8edf\u9ad4\u8a2d\u8a08\u968e\u6bb5\u4f7f\u7528\uff0c\u4ee5\u63cf\u8ff0\u61c9\u7528\u7a0b\u5f0f\u5728\u985e\u5225\u3001\u7269\u4ef6\u53ca\u5176\u4e92\u52d5\u65b9\u9762\u7684\u9ad8\u968e\u7d50\u69cb\u3002<\/li>\n<li>\u53e6\u4e00\u65b9\u9762\uff0cERD\u66f4\u8457\u91cd\u65bc\u8cc7\u6599\u5132\u5b58\u8207\u53d6\u56de\u7684\u9762\u5411\uff0c\u63cf\u8ff0\u8cc7\u6599\u5728\u8cc7\u6599\u5eab\u4e2d\u7684\u7d50\u69cb\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u7e3d\u800c\u8a00\u4e4b\uff0c\u985e\u5716\u8207ERD\u5728\u8edf\u9ad4\u958b\u767c\u4e2d\u626e\u6f14\u4e0d\u540c\u7684\u89d2\u8272\u3002\u7136\u800c\uff0c\u5b83\u5011\u4e4b\u9593\u5b58\u5728\u95dc\u806f\uff0c\u56e0\u70baERD\u6240\u5448\u73fe\u7684\u8cc7\u6599\u6a21\u578b\u901a\u5e38\u6703\u5f71\u97ff\u985e\u5716\u4e2d\u985e\u5225\u8207\u7269\u4ef6\u7684\u8a2d\u8a08\uff0c\u78ba\u4fdd\u8edf\u9ad4\u7cfb\u7d71\u7684\u8cc7\u6599\u8207\u529f\u80fd\u80fd\u5920\u826f\u597d\u5c0d\u9f4a\u3002<\/p>\n<h2>\u7e3d\u7d50ERD\u8207\u985e\u5716<\/h2>\n<p>\u9019\u88e1\u6709\u4e00\u5f35\u8868\u683c\uff0c\u7528\u65bc\u5c0d\u6bd4\u8edf\u9ad4\u958b\u767c\u4e2d\u7684\u985e\u5716\u8207\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u9762<\/th>\n<th>\u985e\u5716<\/th>\n<th>\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u76ee\u7684<\/strong><\/td>\n<td>\u8868\u793a\u8edf\u9ad4\u7cfb\u7d71\u4e2d\u985e\u8207\u7269\u4ef6\u7684\u975c\u614b\u7d50\u69cb\u8207\u884c\u70ba\u3002<\/td>\n<td>\u6a21\u64ec\u8cc7\u6599\u5eab\u7cfb\u7d71\u4e2d\u7684\u8cc7\u6599\u7d50\u69cb\u8207\u95dc\u4fc2\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u91cd\u9ede<\/strong><\/td>\n<td>\u985e\u5225\u3001\u7269\u4ef6\u3001\u65b9\u6cd5\u3001\u5c6c\u6027\u3001\u7e7c\u627f\u8207\u4f9d\u8cf4\u95dc\u4fc2\u3002<\/td>\n<td>\u5be6\u9ad4\u3001\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u3001\u95dc\u4fc2\uff08\u4e00\u5c0d\u4e00\u3001\u4e00\u5c0d\u591a\u3001\u591a\u5c0d\u591a\uff09\u3001\u9375\uff08\u4e3b\u9375\u3001\u5916\u9375\uff09\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5143\u7d20<\/strong><\/td>\n<td>\u985e\u5225\u3001\u95dc\u806f\u3001\u5c6c\u6027\u3001\u65b9\u6cd5\u3001\u6cdb\u5316\/\u5c08\u5316\u95dc\u4fc2\u3001\u4f9d\u8cf4\u95dc\u4fc2\u3002<\/td>\n<td>\u5be6\u9ad4\uff08\u8cc7\u6599\u8868\uff09\u3001\u5c6c\u6027\uff08\u6b04\u4f4d\uff09\u3001\u95dc\u4fc2\uff08\u95dc\u806f\uff09\u3001\u9375\uff08\u4e3b\u9375\u3001\u5916\u9375\uff09\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4f7f\u7528\u968e\u6bb5<\/strong><\/td>\n<td>\u5728\u8edf\u9ad4\u8a2d\u8a08\u8207\u5efa\u6a21\u968e\u6bb5\u4f7f\u7528\u3002<\/td>\n<td>\u5728\u8cc7\u6599\u5eab\u8a2d\u8a08\u8207\u5efa\u6a21\u968e\u6bb5\u4f7f\u7528\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8868\u793a\u65b9\u5f0f<\/strong><\/td>\n<td>\u5448\u73fe\u985e\u5225\u53ca\u5176\u4e92\u52d5\u7684\u7d50\u69cb\u8207\u884c\u70ba\u3002<\/td>\n<td>\u5448\u73fe\u8cc7\u6599\u5eab\u4e2d\u7684\u8cc7\u6599\u5132\u5b58\u7d50\u69cb\u3001\u95dc\u4fc2\u8207\u9650\u5236\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5c0d\u61c9<\/strong><\/td>\n<td>\u5c07\u985e\u5225\u5c0d\u61c9\u81f3\u5be6\u9ad4\uff0c\u985e\u5225\u5c6c\u6027\u5c0d\u61c9\u81f3\u5be6\u9ad4\u5c6c\u6027\uff0c\u95dc\u806f\u5c0d\u61c9\u81f3\u95dc\u4fc2\uff0c\u4f9d\u8cf4\u95dc\u4fc2\u5c0d\u61c9\u81f3\u8cc7\u6599\u5eab\u9650\u5236\u3002<\/td>\n<td>\u5c07\u5be6\u9ad4\u5c0d\u61c9\u81f3\u985e\u5225\uff0c\u5be6\u9ad4\u5c6c\u6027\u5c0d\u61c9\u81f3\u985e\u5225\u5c6c\u6027\uff0c\u95dc\u4fc2\u5c0d\u61c9\u81f3\u95dc\u806f\uff0c\u9375\u5c0d\u61c9\u81f3\u552f\u4e00\u8b58\u5225\u78bc\u6216\u5c6c\u6027\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u62bd\u8c61\u5c64\u7d1a<\/strong><\/td>\n<td>\u5448\u73fe\u8edf\u9ad4\u5143\u4ef6\u53ca\u5176\u4e92\u52d5\u7684\u9ad8\u968e\u8996\u5716\u3002<\/td>\n<td>\u8457\u91cd\u65bc\u7cfb\u7d71\u7684\u4f4e\u968e\u8cc7\u6599\u5132\u5b58\u8207\u53d6\u56de\u65b9\u9762\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7bc4\u4f8b\u61c9\u7528\u60c5\u5883<\/strong><\/td>\n<td>\u8a2d\u8a08\u8207\u5efa\u6a21\u7269\u4ef6\u5c0e\u5411\u7684\u8edf\u9ad4\u7cfb\u7d71\uff0c\u4f8b\u5982\u61c9\u7528\u7a0b\u5f0f\u8207\u7cfb\u7d71\u3002<\/td>\n<td>\u8a2d\u8a08\u8207\u5efa\u6a21\u7528\u65bc\u5132\u5b58\u8207\u7ba1\u7406\u8cc7\u6599\u7684\u95dc\u4fc2\u578b\u8cc7\u6599\u5eab\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u5de5\u5177\u4f7f\u7528<\/strong><\/td>\n<td>\u7531UML\u5efa\u6a21\u5de5\u5177\u652f\u63f4\uff08\u4f8b\u5982\uff1aUMLet\u3001Lucidchart\u3001Enterprise Architect\uff09\u3002<\/td>\n<td>\u7531\u8cc7\u6599\u5eab\u8a2d\u8a08\u5de5\u5177\u652f\u63f4\uff08\u4f8b\u5982\uff1aMySQL Workbench\u3001ERwin\u3001dbForge Studio\uff09\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u95dc\u4fc2<\/strong><\/td>\n<td>\u985e\u5716\u8207\u8cc7\u6599\u6a21\u578b\uff08ERD\uff09\u4e4b\u9593\u5b58\u5728\u95dc\u806f\uff0c\u56e0\u70ba\u8cc7\u6599\u6a21\u578b\u53ef\u80fd\u5f71\u97ff\u985e\u5225\u8207\u5c6c\u6027\u7684\u8a2d\u8a08\u3002<\/td>\n<td>ERD \u5e38\u88ab\u7528\u4f5c\u5efa\u7acb\u8edf\u9ad4\u7cfb\u7d71\u8cc7\u6599\u5eab\u7d50\u69cb\u7684\u57fa\u790e\uff0c\u9019\u53ef\u80fd\u5f71\u97ff\u985e\u5225\u8a2d\u8a08\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8acb\u8a18\u4f4f\uff0c\u96d6\u7136\u985e\u5716\u8207 ERD \u7684\u91cd\u9ede\u4e0d\u540c\uff0c\u4f46\u5728\u8edf\u9ad4\u958b\u767c\u904e\u7a0b\u4e2d\u7d93\u5e38\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u78ba\u4fdd\u8cc7\u6599\u7d50\u69cb\u8207\u8edf\u9ad4\u8a2d\u8a08\u826f\u597d\u5c0d\u9f4a\uff0c\u7279\u5225\u662f\u5728\u4f9d\u8cf4\u8cc7\u6599\u5eab\u9032\u884c\u8cc7\u6599\u5132\u5b58\u8207\u6aa2\u7d22\u7684\u61c9\u7528\u4e2d\u3002<\/p>\n<h2>\u4f55\u6642\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u54ea\u4e00\u7a2e\uff1f<\/h2>\n<p>\u6c7a\u5b9a\u662f\u5426\u4f7f\u7528\u985e\u5716\u6216\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\u53d6\u6c7a\u65bc\u60a8\u7684\u8edf\u9ad4\u958b\u767c\u5c08\u6848\u7684\u7279\u5b9a\u968e\u6bb5\u8207\u9700\u6c42\uff0c\u4ee5\u53ca\u60a8\u5e0c\u671b\u50b3\u9054\u6216\u8a2d\u8a08\u7684\u5167\u5bb9\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u6bcf\u4e00\u7a2e\u5716\u7684\u6307\u5357\uff1a<\/p>\n<p><strong>\u7576\u4ee5\u4e0b\u60c5\u6cc1\u6642\u4f7f\u7528\u985e\u5716\uff1a<\/strong><\/p>\n<ol>\n<li><strong>\u8a2d\u8a08\u7269\u4ef6\u5c0e\u5411\u7cfb\u7d71\uff1a<\/strong>\u7576\u60a8\u8a2d\u8a08\u7269\u4ef6\u5c0e\u5411\u8edf\u9ad4\u7cfb\u7d71\uff08\u4f8b\u5982\u61c9\u7528\u7a0b\u5f0f\uff09\u6642\uff0c\u985e\u5716\u6700\u9069\u5408\uff0c\u4ee5\u5448\u73fe\u985e\u5225\u3001\u5176\u5c6c\u6027\u3001\u65b9\u6cd5\u53ca\u5176\u4e92\u52d5\u95dc\u4fc2\u3002<\/li>\n<li><strong>\u5efa\u6a21\u8edf\u9ad4\u67b6\u69cb\uff1a<\/strong>\u985e\u5716\u6709\u52a9\u65bc\u5efa\u6a21\u60a8\u7684\u8edf\u9ad4\u7684\u975c\u614b\u7d50\u69cb\uff0c\u5305\u62ec\u985e\u5225\u4e4b\u9593\u7684\u95dc\u4fc2\u53ca\u5176\u5728\u7cfb\u7d71\u5167\u7684\u7d44\u7e54\u65b9\u5f0f\u3002<\/li>\n<li><strong>\u8996\u89ba\u5316\u7a0b\u5f0f\u78bc\u7d50\u69cb\uff1a<\/strong>\u5b83\u5011\u6709\u52a9\u65bc\u63d0\u4f9b\u7a0b\u5f0f\u78bc\u5eab\u7d50\u69cb\u7684\u8996\u89ba\u5316\u5448\u73fe\uff0c\u9019\u5c0d\u958b\u767c\u4eba\u54e1\u7406\u89e3\u8207\u7dad\u8b77\u7a0b\u5f0f\u78bc\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/li>\n<li><strong>\u5b9a\u7fa9\u8edf\u9ad4\u5143\u4ef6\uff1a<\/strong>\u4f7f\u7528\u985e\u5716\u4f86\u5b9a\u7fa9\u4e26\u8a18\u9304\u8edf\u9ad4\u7684\u95dc\u9375\u5143\u4ef6\u3001\u5176\u8cac\u4efb\u8207\u76f8\u4e92\u95dc\u4fc2\u3002<\/li>\n<li><strong>\u6355\u6349\u696d\u52d9\u908f\u8f2f\uff1a<\/strong>\u5982\u679c\u60a8\u95dc\u6ce8\u7684\u662f\u6355\u6349\u8edf\u9ad4\u7684\u696d\u52d9\u908f\u8f2f\u8207\u529f\u80fd\uff0c\u985e\u5716\u662f\u4e0d\u932f\u7684\u9078\u64c7\u3002<\/li>\n<\/ol>\n<p><strong>\u7576\u4ee5\u4e0b\u60c5\u6cc1\u6642\u4f7f\u7528\u5be6\u9ad4-\u95dc\u4fc2\u5716\uff08ERD\uff09\uff1a<\/strong><\/p>\n<ol>\n<li><strong>\u8a2d\u8a08\u8cc7\u6599\u5eab\uff1a<\/strong>ERD \u5c08\u9580\u7528\u65bc\u5efa\u6a21\u8cc7\u6599\u5eab\u5167\u7684\u8cc7\u6599\u7d50\u69cb\u8207\u95dc\u4fc2\u3002\u7576\u60a8\u4e3b\u8981\u95dc\u5fc3\u8cc7\u6599\u5132\u5b58\u3001\u6aa2\u7d22\u8207\u8cc7\u6599\u5eab\u8a2d\u8a08\u6642\uff0c\u61c9\u4f7f\u7528 ERD\u3002<\/li>\n<li><strong>\u8cc7\u6599\u5eab\u7d50\u69cb\u8a2d\u8a08\uff1a<\/strong>\u7576\u60a8\u9700\u8981\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u5efa\u7acb\u6216\u4fee\u6539\u8cc7\u6599\u5eab\u7d50\u69cb\u6642\uff0cERD \u662f\u5448\u73fe\u8cc7\u6599\u8868\u3001\u6b04\u4f4d\u3001\u7d22\u5f15\u8207\u95dc\u4fc2\u7684\u5fc5\u8981\u5de5\u5177\u3002<\/li>\n<li><strong>\u8cc7\u6599\u6a21\u578b\u5efa\u7acb\uff1a<\/strong>ERD 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