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alt=\"ERD - Small Loan System - Visual Paradigm Community Circle\" decoding=\"async\" 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Microsoft Visio\u3001Eclipse \u6216 Rational Rose\u3002<\/p>\n<h2>\u793a\u4f8b\u2014\u2014\u96f6\u552e\u516c\u53f8\u7684\u7535\u5b50\u5546\u52a1\u5e73\u53f0<\/h2>\n<p>\u5047\u8bbe\u60a8\u88ab\u59d4\u6d3e\u8bbe\u8ba1\u4e00\u4e2a\u96f6\u552e\u516c\u53f8\u7684\u65b0\u7535\u5b50\u5546\u52a1\u5e73\u53f0\u3002\u8be5\u516c\u53f8\u5e0c\u671b\u5ba2\u6237\u80fd\u591f\u5728\u7ebf\u6d4f\u89c8\u548c\u8d2d\u4e70\u4ea7\u54c1\uff0c\u540c\u65f6\u7ba1\u7406\u5176\u8d26\u6237\u4fe1\u606f\u548c\u8ba2\u5355\u5386\u53f2\u3002\u8be5\u5e73\u53f0\u9700\u8981\u5177\u5907\u53ef\u6269\u5c55\u6027\u3001\u5b89\u5168\u6027\uff0c\u5e76\u80fd\u591f\u5904\u7406\u5927\u91cf\u5e76\u53d1\u7528\u6237\u3002<\/p>\n<p>\u4e3a\u4e86\u5f00\u53d1\u8be5\u5e73\u53f0\uff0c\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4efd\u8be6\u7ec6\u84dd\u56fe\uff0c\u63cf\u8ff0\u7cfb\u7edf\u7684\u67b6\u6784\u548c\u529f\u80fd\u3002\u6b64\u65f6\uff0c\u7c7b\u56fe\u3001ER\u56fe\u548c\u5bf9\u8c61\u56fe\u5c31\u663e\u5f97\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h3>\u5f00\u53d1\u7c7b\u56fe<\/h3>\n<p>\u5982\u4e0b\u6240\u793a\u7684\u7c7b\u56fe\uff0c\u63d0\u4f9b\u4e86\u9762\u5411\u5bf9\u8c61\u7cfb\u7edf\u4e2d\u7c7b\u53ca\u5176\u5173\u7cfb\u7684\u6982\u89c8\u3002\u5728\u4e0a\u8ff0\u751f\u6210\u7684\u793a\u4f8b\u4e2d\uff0c\u8bc6\u522b\u51fa\u7684\u7c7b\u5305\u62ec\u5ba2\u6237\u3001\u4ea7\u54c1\u548c\u8ba2\u5355\uff0c\u6bcf\u4e2a\u7c7b\u90fd\u6709\u5176\u5404\u81ea\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u7c7b\u56fe\u8fd8\u8868\u660e\u4e86\u7c7b\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4f8b\u5982\u5ba2\u6237\u4e0e\u8ba2\u5355\u4e4b\u95f4\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\uff0c\u4ee5\u53ca\u8ba2\u5355\u4e0e\u4ea7\u54c1\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002<\/p>\n<p id=\"DmHQNjL\"><img fetchpriority=\"high\" alt=\"UML Class Diagram for Customer-Order-Product example\" class=\"alignnone size-full wp-image-981\" decoding=\"async\" fetchpriority=\"high\" height=\"458\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-class-diagram.png\" width=\"375\"\/><\/p>\n<h2>\u5bf9\u8c61\u56fe<\/h2>\n<div class=\"flex-1 overflow-hidden\">\n<div class=\"react-scroll-to-bottom--css-qjwkn-79elbk h-full dark:bg-gray-800\">\n<div class=\"react-scroll-to-bottom--css-qjwkn-1n7m0yu\">\n<div class=\"flex flex-col items-center text-sm dark:bg-gray-800\">\n<div class=\"group w-full text-gray-800 dark:text-gray-100 border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\">\n<div class=\"text-base gap-4 md:gap-6 md:max-w-2xl lg:max-w-2xl xl:max-w-3xl p-4 md:py-6 flex lg:px-0 m-auto\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-4 whitespace-pre-wrap\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u4e0b\u9762\u7684\u5bf9\u8c61\u56fe\u5c55\u793a\u4e86\u67d0\u4e00\u7279\u5b9a\u65f6\u523b\u7c7b\u7684\u4e00\u4e2a\u5177\u4f53\u5b9e\u4f8b\u3002\u5b83\u8868\u793a\u7cfb\u7edf\u4e2d\u7684\u5bf9\u8c61\u53ca\u5176\u5173\u7cfb\u3002\u5728\u4e0a\u8ff0\u751f\u6210\u7684\u793a\u4f8b\u4e2d\uff0c\u5bf9\u8c61\u56fe\u5c55\u793a\u4e86\u5ba2\u6237\u3001\u8ba2\u5355\u548c\u4ea7\u54c1\u7684\u5177\u4f53\u5b9e\u4f8b\u3002\u8be5\u56fe\u8868\u660e\u5ba2\u6237\u5bf9\u8c61\u4e0e\u7279\u5b9a\u7684\u8ba2\u5355\u5bf9\u8c61\u76f8\u5173\u8054\uff0c\u800c\u8ba2\u5355\u5bf9\u8c61\u5305\u542b\u7279\u5b9a\u7684\u4ea7\u54c1\u5bf9\u8c61\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u7c7b\u56fe\u7528\u4e8e\u63d0\u4f9b\u7c7b\u53ca\u5176\u5173\u7cfb\u7684\u6982\u89c8\uff0c\u800c\u5bf9\u8c61\u56fe\u7528\u4e8e\u8868\u793a\u7279\u5b9a\u65f6\u523b\u7c7b\u7684\u5177\u4f53\u5b9e\u4f8b\u53ca\u5176\u5173\u7cfb\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"absolute bottom-0 left-0 w-full border-t md:border-t-0 dark:border-white\/20 md:border-transparent md:dark:border-transparent md:bg-vert-light-gradient bg-white dark:bg-gray-800 md:!bg-transparent dark:md:bg-vert-dark-gradient pt-2\">\n<form class=\"stretch mx-2 flex flex-row gap-3 last:mb-2 md:mx-4 md:last:mb-6 lg:mx-auto lg:max-w-3xl\">\n<div class=\"relative flex h-full flex-1 md:flex-col\">\n<div class=\"flex ml-1 md:w-full md:m-auto md:mb-2 gap-0 md:gap-2 justify-center\"><img alt=\"UML Object Diagram for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-980\" decoding=\"async\" height=\"374\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-object-diagram.png\" width=\"447\"\/><\/div>\n<\/div>\n<\/form>\n<\/div>\n<h3 id=\"pJsCwgX\">\u5f00\u53d1ER\u56fe<\/h3>\n<p>\u7c7b\u56fe\u548cER\u56fe\uff08\u5b9e\u4f53\u5173\u7cfb\u56fe\uff09\u90fd\u662f\u7528\u4e8e\u8868\u793a\u7cfb\u7edf\u4e2d\u6570\u636e\u7ed3\u6784\u548c\u5b9e\u4f53\u4e4b\u95f4\u5173\u7cfb\u7684\u5efa\u6a21\u5de5\u5177\u3002<\/p>\n<p>\u7c7b\u56fe\u4e3b\u8981\u7528\u4e8e\u9762\u5411\u5bf9\u8c61\u7cfb\u7edf\u4e2d\u5c55\u793a\u7c7b\u3001\u5b83\u4eec\u7684\u5c5e\u6027\u3001\u65b9\u6cd5\u4ee5\u53ca\u4e0e\u5176\u4ed6\u7c7b\u7684\u5173\u7cfb\u3002\u5b83\u5e38\u7528\u4e8e\u63cf\u7ed8\u9762\u5411\u5bf9\u8c61\u7cfb\u7edf\u7684\u9759\u6001\u7ed3\u6784\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u7c7b\u56fe\u4e2d\uff0c\u6240\u8bc6\u522b\u7684\u7c7b\u5305\u62ec\u5ba2\u6237\u3001\u4ea7\u54c1\u548c\u8ba2\u5355\uff0c\u6bcf\u4e2a\u7c7b\u90fd\u6709\u5176\u5404\u81ea\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u7c7b\u56fe\u8fd8\u8868\u660e\u4e86\u7c7b\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4f8b\u5982\u5ba2\u6237\u4e0e\u8ba2\u5355\u4e4b\u95f4\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\uff0c\u4ee5\u53ca\u8ba2\u5355\u4e0e\u4ea7\u54c1\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002<\/p>\n<p>\u53e6\u4e00\u65b9\u9762\uff0cERD\u7528\u4e8e\u8868\u793a\u7cfb\u7edf\u7684\u6570\u636e\u7ed3\u6784\u4ee5\u53ca\u7cfb\u7edf\u4e2d\u5404\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u63cf\u8ff0\u6570\u636e\u5e93\u7684\u903b\u8f91\u7ed3\u6784\u3002\u5728\u4e0b\u9762\u7684\u793a\u4f8bERD\u4e2d\uff0c\u6240\u8bc6\u522b\u7684\u5b9e\u4f53\u5305\u62ec\u5ba2\u6237\u3001\u4ea7\u54c1\u548c\u8ba2\u5355\uff0c\u6bcf\u4e2a\u5b9e\u4f53\u90fd\u6709\u5176\u5404\u81ea\u7684\u5c5e\u6027\u3002ERD\u8fd8\u8868\u660e\u4e86\u5b9e\u4f53\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4f8b\u5982\u5ba2\u6237\u4e0e\u8ba2\u5355\u4e4b\u95f4\u7684\u4e00\u5bf9\u591a\u5173\u7cfb\uff0c\u4ee5\u53ca\u8ba2\u5355\u4e0e\u4ea7\u54c1\u4e4b\u95f4\u7684\u591a\u5bf9\u591a\u5173\u7cfb\u3002<\/p>\n<p><img alt=\"ER Diagram for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-979\" decoding=\"async\" height=\"420\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/customer-order-and-product-er-diagram.png\" width=\"377\"\/><\/p>\n<p>\u5c3d\u7ba1\u7c7b\u56fe\u548cERD\u90fd\u662f\u7528\u4e8e\u8868\u793a\u6570\u636e\u7ed3\u6784\u548c\u5173\u7cfb\u7684\u5efa\u6a21\u5de5\u5177\uff0c\u4f46\u7c7b\u56fe\u4e3b\u8981\u7528\u4e8e\u9762\u5411\u5bf9\u8c61\u7cfb\u7edf\u4e2d\u63cf\u7ed8\u7cfb\u7edf\u7684\u9759\u6001\u7ed3\u6784\uff0c\u800cERD\u4e3b\u8981\u7528\u4e8e\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u63cf\u8ff0\u6570\u636e\u5e93\u7684\u903b\u8f91\u7ed3\u6784\u3002<\/p>\n<h3>\u6839\u636eERD\u751f\u6210\u6570\u636e\u5e93\u6a21\u5f0f<\/h3>\n<p>\u57fa\u4e8e\u4e4b\u524d\u751f\u6210\u7684\u5b9e\u4f53\u5173\u7cfb\u56fe\uff08ERD\uff09\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\u6a21\u5f0f\u6765\u8868\u793a\u6570\u636e\u5e93\u7684\u903b\u8f91\u7ed3\u6784\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u57fa\u4e8eERD\u7684\u4e00\u4e2a\u6570\u636e\u5e93\u6a21\u5f0f\u793a\u4f8b\uff1a<\/p>\n<blockquote>\n<p>\u5ba2\u6237<br \/>\n\u2013 \u5ba2\u6237ID\uff08\u4e3b\u952e\uff09<br \/>\n\u2013 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loading=\"lazy\" alt=\"Class Diagram, Object Diagram and ERD for a Customer-Order-Product example\" class=\"alignnone size-full wp-image-982\" decoding=\"async\" height=\"506\" loading=\"lazy\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/03\/class-diagram-object-diagram-er-diagram.png\" width=\"807\"\/><\/p>\n<p>\u7c7b\u56fe\u7528\u4e8e\u5efa\u6a21\u7cfb\u7edf\u4e2d\u7684\u7c7b\u3001\u5176\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u5173\u7cfb\u3002\u5bf9\u8c61\u56fe\u8868\u793a\u67d0\u4e00\u7279\u5b9a\u65f6\u523b\u7c7b\u7684\u67d0\u4e2a\u5177\u4f53\u5b9e\u4f8b\uff0c\u800cER\u56fe\u7528\u4e8e\u5efa\u6a21\u7cfb\u7edf\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5c55\u793a\u5b9e\u4f53\u3001\u5176\u5c5e\u6027\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<p>\u9009\u62e9\u5408\u9002\u7684\u56fe\u8868\u53d6\u51b3\u4e8e\u8f6f\u4ef6\u5f00\u53d1\u9879\u76ee\u7684\u5177\u4f53\u9700\u6c42\u4ee5\u53ca\u5f00\u53d1\u8fc7\u7a0b\u7684\u9636\u6bb5\u3002\u7c7b\u56fe\u7528\u4e8e\u8bbe\u8ba1\u9636\u6bb5\uff0c\u5bf9\u8c61\u56fe\u7528\u4e8e\u8c03\u8bd5\u548c\u6d4b\u8bd5\u7cfb\u7edf\u7684\u7279\u5b9a\u5b9e\u4f8b\uff0c\u800cER\u56fe\u7528\u4e8e\u6570\u636e\u5e93\u8bbe\u8ba1\u9636\u6bb5\u3002<\/p>\n<p>\u901a\u8fc7\u7406\u89e3\u6bcf\u79cd\u56fe\u8868\u7684\u5dee\u5f02\u548c\u5e94\u7528\u573a\u666f\uff0c\u8f6f\u4ef6\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u9009\u62e9\u6700\u9002\u5408\u81ea\u8eab\u9700\u6c42\u7684\u56fe\u8868\uff0c\u4ece\u800c\u786e\u4fdd\u8f6f\u4ef6\u5f00\u53d1\u9879\u76ee\u7684\u6210\u529f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c7b\u56fe\u4e0e\u5bf9\u8c61\u56fe\u4e0eER\u56fe\u5bf9\u6bd4 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