{"id":6556,"date":"2026-02-05T09:49:45","date_gmt":"2026-02-05T01:49:45","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/designing-a-robust-library-management-system-from-concept-to-reality\/"},"modified":"2026-02-05T09:49:45","modified_gmt":"2026-02-05T01:49:45","slug":"designing-a-robust-library-management-system-from-concept-to-reality","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/designing-a-robust-library-management-system-from-concept-to-reality\/","title":{"rendered":"\u5805\u7262\u306a\u56f3\u66f8\u9928\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\uff1a\u30b3\u30f3\u30bb\u30d7\u30c8\u304b\u3089\u73fe\u5b9f\u3078"},"content":{"rendered":"<h2><strong>\u5e8f\u8ad6<\/strong><\/h2>\n<p>\u30c7\u30b8\u30bf\u30eb\u9769\u547d\u304c\u76ee\u7acb\u3064\u6642\u4ee3\u306b\u304a\u3044\u3066\u3082\u3001\u56f3\u66f8\u9928\u306f\u77e5\u8b58\u306e\u666e\u53ca\u3068\u6587\u5b66\u3078\u306e\u611b\u7740\u3092\u80b2\u3080\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u5b66\u3073\u306e\u8056\u57df\u304c\u52b9\u7387\u7684\u306b\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u69cb\u9020\u304c\u6574\u3063\u305f\u56f3\u66f8\u9928\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\uff08LMS\uff09\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u672c\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3067\u306f\u3001\u5305\u62ec\u7684\u306aLMS\u306e\u8a2d\u8a08\u306b\u53d6\u308a\u7d44\u307f\u3001\u30b3\u30f3\u30bb\u30d7\u30c8\u304b\u3089\u5b9f\u88c5\u307e\u3067\u306e\u4e00\u9023\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u6b69\u307f\u307e\u3059\u3002\u79c1\u305f\u3061\u306e\u76ee\u7684\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3092\u3001\u6d3b\u6c17\u3042\u308b\u56f3\u66f8\u9928\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3058\u305f\u7cbe\u5bc6\u306b\u8abf\u6574\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u3078\u3068\u5909\u63db\u3059\u308b\u305f\u3081\u306e\u6bb5\u968e\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3092\u793a\u3059\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2>\u30af\u30e9\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u304b\u3089\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u3078<\/h2>\n<p>\u30af\u30e9\u30b9\u56f3\u304b\u3089\u6982\u5ff5\u7684ERD\uff08\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff09\u3001\u8ad6\u7406\u7684ERD\u3001\u7269\u7406\u7684ERD\u3001\u305d\u3057\u3066\u6b63\u898f\u5316\u30b9\u30c6\u30c3\u30d7\u306b\u81f3\u308b\u307e\u3067\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u958b\u767a\u30d7\u30ed\u30bb\u30b9\u3092\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u56f3\u66f8\u9928\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3092\u4eee\u60f3\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3068\u3057\u3066\u7528\u3044\u307e\u3059\u3002<\/p>\n<h3><strong>\u4e8b\u4f8b\u7814\u7a76\uff1a\u56f3\u66f8\u9928\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/strong><\/h3>\n<p><strong>\u30b9\u30c6\u30c3\u30d71\uff1a\u30af\u30e9\u30b9\u56f3\u304b\u3089\u6982\u5ff5\u7684ERD\u3078<\/strong><\/p>\n<p>\u521d\u671f\u6bb5\u968e\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u9ad8\u30ec\u30d9\u30eb\u306a\u69cb\u9020\u3092\u8868\u3059\u30af\u30e9\u30b9\u56f3\u304b\u3089\u59cb\u3081\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u79c1\u305f\u3061\u306e\u56f3\u66f8\u9928\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306e\u7c21\u7565\u5316\u3055\u308c\u305f\u30af\u30e9\u30b9\u56f3\u3067\u3059\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/guides.visual-paradigm.com\/wp-content\/uploads\/2023\/09\/img_6503e9538d2cc.png\"\/><\/p>\n<p>\u3053\u306e\u30af\u30e9\u30b9\u56f3\u304b\u3089\u3001\u6982\u5ff5\u7684ERD\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\uff1a<\/p>\n<p><strong>\u6982\u5ff5\u7684ERD\uff1a<\/strong><\/p>\n<ul>\n<li>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a\n<ul>\n<li>\u66f8\u7c4d<\/li>\n<li>\u8457\u8005<\/li>\n<li>\u4f1a\u54e1<\/li>\n<li>\u8cb8\u51fa<\/li>\n<\/ul>\n<\/li>\n<li>\u95a2\u4fc2\uff1a\n<ul>\n<li>\u66f8\u7c4d\u306f\u30011\u4eba\u307e\u305f\u306f\u8907\u6570\u306e\u8457\u8005\u306b\u3088\u3063\u3066\u57f7\u7b46\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<li>\u4f1a\u54e1\u306f\u30010\u518a\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a\u306e\u66f8\u7c4d\u3092\u501f\u308a\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n<li>\u66f8\u7c4d\u306f\u3001\u540c\u6642\u306b0\u4eba\u307e\u305f\u306f1\u4eba\u306e\u4f1a\u54e1\u306b\u3088\u3063\u3066\u501f\u308a\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u30b9\u30c6\u30c3\u30d72\uff1a\u6982\u5ff5\u7684ERD\u304b\u3089\u8ad6\u7406\u7684ERD\u3078<\/strong><\/p>\n<p>\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u5c5e\u6027\u3092\u8ffd\u52a0\u3057\u3001\u57fa\u6570\u3092\u660e\u78ba\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u6982\u5ff5\u7684ERD\u3092\u7cbe\u7dfb\u5316\u3057\u307e\u3059\uff1a<\/p>\n<p><strong>\u8ad6\u7406\u7684ERD\uff1a<\/strong><\/p>\n<ul>\n<li>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a\n<ul>\n<li>\u66f8\u7c4d\uff08ISBN\u3001\u30bf\u30a4\u30c8\u30eb\u3001\u30b8\u30e3\u30f3\u30eb\u3001\u51fa\u7248\u5e74\u3001\u2026\uff09<\/li>\n<li>\u8457\u8005\uff08\u8457\u8005ID\u3001\u540d\u3001\u59d3\u3001\u2026\uff09<\/li>\n<li>\u4f1a\u54e1\uff08\u4f1a\u54e1ID\u3001\u540d\u3001\u59d3\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u2026\uff09<\/li>\n<li>\u8cb8\u51fa\uff08\u8cb8\u51faID\u3001\u8cb8\u51fa\u65e5\u3001\u8fd4\u5374\u65e5\u3001\u2026\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u95a2\u4fc2\uff1a\n<ul>\n<li>\u66f8\u7c4d\u8457\u8005\uff08\u66f8\u7c4dISBN\u3001\u8457\u8005ID\uff09\n<ul>\n<li>\u57fa\u6570\uff1a\u591a\u5bfe\u591a<\/li>\n<\/ul>\n<\/li>\n<li>MemberLoan (MemberID, LoanID)\n<ul>\n<li>\u57fa\u6570: 1\u5bfe\u591a (1\u4eba\u306e\u4f1a\u54e1\u304c\u8907\u6570\u306e\u8cb8\u51fa\u3092\u4fdd\u6301\u3067\u304d\u308b)<\/li>\n<\/ul>\n<\/li>\n<li>BookLoan (LoanID, BookISBN)\n<ul>\n<li>\u57fa\u6570: \u591a\u5bfe\u591a (1\u3064\u306e\u8cb8\u51fa\u304c\u8907\u6570\u306e\u66f8\u7c4d\u3092\u542b\u3080\u3053\u3068\u304c\u3067\u304d\u308b)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u30b9\u30c6\u30c3\u30d73: \u8ad6\u7406ERD\u304b\u3089\u7269\u7406ERD\u3078<\/strong><\/p>\n<p>\u3053\u3053\u3067\u306f\u3001\u30c7\u30fc\u30bf\u578b\u3001\u4e3b\u30ad\u30fc\u3001\u5916\u90e8\u30ad\u30fc\u3001\u304a\u3088\u3073\u9078\u629e\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\uff08\u4f8b\uff1aPostgreSQL\u3001MySQL\uff09\u306b\u7279\u6709\u306e\u305d\u306e\u4ed6\u306e\u5236\u7d04\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u8ad6\u7406ERD\u3092\u7269\u7406ERD\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u7269\u7406ERD\uff1a<\/strong><\/p>\n<ul>\n<li>\u30c6\u30fc\u30d6\u30eb\uff1a\n<ul>\n<li>Book (ISBN [PK], \u30bf\u30a4\u30c8\u30eb, \u30b8\u30e3\u30f3\u30eb, \u51fa\u7248\u5e74, \u2026)<\/li>\n<li>Author (AuthorID [PK], \u540d, \u59d3, \u2026)<\/li>\n<li>Member (MemberID [PK], \u540d, \u59d3, \u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9, \u2026)<\/li>\n<li>Loan (LoanID [PK], \u8cb8\u51fa\u65e5, \u8fd4\u5374\u65e5, \u2026)<\/li>\n<\/ul>\n<\/li>\n<li>\u95a2\u4fc2\uff1a\n<ul>\n<li>BookAuthor (BookISBN [FK], AuthorID [FK])<\/li>\n<li>MemberLoan (MemberID [FK], LoanID [FK])<\/li>\n<li>BookLoan (LoanID [FK], BookISBN [FK])<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u30b9\u30c6\u30c3\u30d74: \u6b63\u898f\u5316<\/strong><\/p>\n<p>\u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u6e1b\u3089\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u304c\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u7269\u7406ERD\u3067\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306f\u3059\u3067\u306b\u9069\u5207\u306a\u6b63\u898f\u5316\u72b6\u614b\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d75: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u958b\u767a<\/strong><\/p>\n<p>\u6700\u5f8c\u306b\u3001SQL\u307e\u305f\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u9078\u629e\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306eSQL\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n<p>CREATE TABLE Book (<br \/>\nISBN VARCHAR(13) PRIMARY KEY,<br \/>\n\u30bf\u30a4\u30c8\u30eb VARCHAR(255),<br \/>\n\u30b8\u30e3\u30f3\u30eb VARCHAR(50),<br \/>\n\u51fa\u7248\u5e74 INT,<br \/>\n\u2014 \u305d\u306e\u4ed6\u306e\u5c5e\u6027<br \/>\n);<\/p>\n<p>CREATE TABLE Author (<br \/>\nAuthorID INT PRIMARY KEY,<br \/>\n\u540d VARCHAR(50),<br \/>\nLastName VARCHAR(50),<br \/>\n\u2014 \u305d\u306e\u4ed6\u306e\u5c5e\u6027<br \/>\n);<\/p>\n<p>CREATE TABLE Member (<br \/>\nMemberID INT PRIMARY KEY,<br \/>\nFirstName VARCHAR(50),<br \/>\nLastName VARCHAR(50),<br \/>\nEmail VARCHAR(255),<br \/>\n\u2014 \u305d\u306e\u4ed6\u306e\u5c5e\u6027<br \/>\n);<\/p>\n<p>CREATE TABLE Loan (<br \/>\nLoanID INT PRIMARY KEY,<br \/>\nLoanDate DATE,<br \/>\nDueDate DATE,<br \/>\n\u2014 \u305d\u306e\u4ed6\u306e\u5c5e\u6027<br \/>\n);<\/p>\n<p>CREATE TABLE BookAuthor (<br \/>\nBookISBN VARCHAR(13),<br \/>\nAuthorID INT,<br \/>\nFOREIGN KEY (BookISBN) REFERENCES Book(ISBN),<br \/>\nFOREIGN KEY (AuthorID) REFERENCES Author(AuthorID)<br \/>\n);<\/p>\n<p>CREATE TABLE MemberLoan (<br \/>\nMemberID INT,<br \/>\nLoanID INT,<br \/>\nFOREIGN KEY (MemberID) REFERENCES Member(MemberID),<br \/>\nFOREIGN KEY (LoanID) REFERENCES Loan(LoanID)<br \/>\n);<\/p>\n<p>CREATE TABLE BookLoan (<br \/>\nLoanID INT,<br \/>\nBookISBN VARCHAR(13),<br \/>\n\u5916\u90e8\u30ad\u30fc (LoanID) REFERENCES Loan(LoanID),<br \/>\n\u5916\u90e8\u30ad\u30fc (BookISBN) REFERENCES Book(ISBN)<br 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\u66f8\u7c4d\u306f\u3001\u540c\u6642\u306b0\u4eba\u307e\u305f\u306f1\u4eba\u306e\u4f1a\u54e1\u306b\u3088\u3063\u3066\u501f\u308a\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002 \u30b9\u30c6\u30c3\u30d72\uff1a\u6982\u5ff5\u7684ERD\u304b\u3089\u8ad6\u7406\u7684ERD\u3078 \u3053\u306e\u6bb5\u968e\u3067\u306f\u3001\u5c5e\u6027\u3092\u8ffd\u52a0\u3057\u3001\u57fa\u6570\u3092\u660e\u78ba\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u6982\u5ff5\u7684ERD\u3092\u7cbe\u7dfb\u5316\u3057\u307e\u3059\uff1a \u8ad6\u7406\u7684ERD\uff1a \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a \u66f8\u7c4d\uff08ISBN\u3001\u30bf\u30a4\u30c8\u30eb\u3001\u30b8\u30e3\u30f3\u30eb\u3001\u51fa\u7248\u5e74\u3001\u2026\uff09 \u8457\u8005\uff08\u8457\u8005ID\u3001\u540d\u3001\u59d3\u3001\u2026\uff09 \u4f1a\u54e1\uff08\u4f1a\u54e1ID\u3001\u540d\u3001\u59d3\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u2026\uff09 \u8cb8\u51fa\uff08\u8cb8\u51faID\u3001\u8cb8\u51fa\u65e5\u3001\u8fd4\u5374\u65e5\u3001\u2026\uff09 \u95a2\u4fc2\uff1a \u66f8\u7c4d\u8457\u8005\uff08\u66f8\u7c4dISBN\u3001\u8457\u8005ID\uff09 \u57fa\u6570\uff1a\u591a\u5bfe\u591a MemberLoan (MemberID, LoanID) \u57fa\u6570: 1\u5bfe\u591a (1\u4eba\u306e\u4f1a\u54e1\u304c\u8907\u6570\u306e\u8cb8\u51fa\u3092\u4fdd\u6301\u3067\u304d\u308b) BookLoan (LoanID, BookISBN) \u57fa\u6570: \u591a\u5bfe\u591a (1\u3064\u306e\u8cb8\u51fa\u304c\u8907\u6570\u306e\u66f8\u7c4d\u3092\u542b\u3080\u3053\u3068\u304c\u3067\u304d\u308b) \u30b9\u30c6\u30c3\u30d73: \u8ad6\u7406ERD\u304b\u3089\u7269\u7406ERD\u3078 \u3053\u3053\u3067\u306f\u3001\u30c7\u30fc\u30bf\u578b\u3001\u4e3b\u30ad\u30fc\u3001\u5916\u90e8\u30ad\u30fc\u3001\u304a\u3088\u3073\u9078\u629e\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b7\u30b9\u30c6\u30e0\uff08\u4f8b\uff1aPostgreSQL<a href=\"https:\/\/guides.visual-paradigm.com\/ja\/designing-a-robust-library-management-system-from-concept-to-reality\/\" rel=\"bookmark\"><span 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