{"id":54,"date":"2007-01-25T16:35:43","date_gmt":"2007-01-25T08:35:43","guid":{"rendered":"https:\/\/lifeparty.idv.tw\/blog\/archives\/54"},"modified":"2007-04-04T10:11:34","modified_gmt":"2007-04-04T02:11:34","slug":"%e6%8e%a2%e8%a8%8e%e3%80%8c%e7%94%a8-real-world-%e7%9a%84%e7%9b%b4%e8%a7%80%e4%be%86%e8%aa%8d%e7%9f%a5-model%e3%80%8d","status":"publish","type":"post","link":"https:\/\/lifeparty.idv.tw\/blog\/archives\/54","title":{"rendered":"\u63a2\u8a0e\u300c\u7528 real world \u7684\u76f4\u89c0\u4f86\u8a8d\u77e5 model\u300d"},"content":{"rendered":"

\u5728\u3008\u8edf\u9ad4\u8a2d\u8a08\u9700\u9762\u5c0d\u73fe\u5be6\u3009<\/a>\u4e00\u6587\u4e2d\uff0c\u6211\u66fe\u91dd\u5c0d Gameboy \u63d0\u51fa\u300c\u7528 real world \u7684\u76f4\u89c0\u4f86\u8a8d\u77e5 model \uff0c\u9019\u6709\u9ede\u5371\u96aa\u300d\u63d0\u51fa\u500b\u4eba\u7684\u770b\u6cd5\u3002\u5c0d\u6b64 Gameboy \u70ba\u5176\u89c0\u9ede defend\uff0c\u7136\u800c\u5728\u8a0e\u8ad6\u904e\u7a0b\u4e2d\u537b\u56e0\u70ba\u5c0d\u6587\u5b57\u611f\u53d7\u4e0d\u540c\u800c\u9020\u6210\u4e00\u4e9b\u722d\u8ad6\u3002\u56e0\u6b64\uff0c\u6211\u8a8d\u70ba\u6709\u5fc5\u8981\u518d\u9032\u4e00\u6b65\u5730\u63a2\u8a0e\u300c\u7528 real world \u7684\u76f4\u89c0\u4f86\u8a8d\u77e5 model \u300d\u9019\u500b\u4e3b\u984c\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8aa4\u6703\u3002<\/p>\n

\u57fa\u672c\u4e0a\u6211\u548c Gameboy \u5c0d\u300creal world\u300d\u7684\u5b9a\u7fa9\u4e0d\u540c\uff0cGameboy \u63d0\u5230\uff1a<\/p>\n

\u56e0\u70ba\u6211\u770b\u5230\u592a\u591a beginner \u7684\u62bd\u8c61\u5316\u662f<\/p>\n

\u50c5\u50c5\u6e90\u81ea\u65bc\u4ed6\u5011\u7684\u76f4\u89c0\u8a8d\u77e5<\/p>\n

\u800c\u975e\u5f9e Requirement \u4e0b\u624b<\/p>\n

\u4f46 Real World \u4e2d\u76f4\u89c0\u7684\u540d\u8a5e<\/p>\n

\u4e0d\u898b\u5f97\u9069\u5408\u4f5c\u70ba Domain Model \u4e2d\u7684 Entity<\/p>\n

\u4f46\u537b\u5f80\u5f80\u88ab\u4ed6\u5011\u8aa4\u690d\u65bc Domain Model \u4e2d<\/p><\/blockquote>\n

\u7531\u4e0a\u53ef\u77e5 Gameboy \u6240\u8a00\u4e4b real world \u5176\u5be6\u6307\u7684\u662f\u7cfb\u7d71\u958b\u767c\u4eba\u54e1\u5c0d\u7cfb\u7d71\u7684\u521d\u6b65\u76f4\u89ba\u8a8d\u77e5\uff0c\u4f46\u5728\u672a\u7d93\u9700\u6c42\u5206\u6790\u4e4b\u524d\uff0c\u5bb9\u6613\u843d\u5165\u4ee5\u6280\u8853\u4f86\u4e3b\u5c0e\u9700\u6c42\uff0c\u800c\u4f7f\u9818\u57df\u6a21\u578b\u8b8a\u6210\u8207\u73fe\u5be6\u554f\u984c\u9818\u57df\u812b\u7bc0\u3002Gameboy \u7684\u770b\u6cd5\u4e26\u6c92\u6709\u932f\uff0c\u4f46 Gameboy \u8aaa\u7684\u300creal world\u300d\u8207\u6211\u6240\u8a8d\u77e5\u7684\u300creal world\u300d\u4e26\u4e0d\u4e00\u6a23\uff0c\u6211\u64d4\u5fc3\u5982\u679c\u6c92\u6709\u754c\u5b9a\u6e05\u695a\uff0c\u8a00\u8005\u7121\u5fc3\uff0c\u807d\u8005\u6709\u610f\uff0c\u5f88\u8b93\u521d\u5b78\u8005\u843d\u5165\u300c\u8a00\u8a9e\u7684\u6d41\u6c99\u6cb3\u300d\u7684\u9677\u9631\uff0d\u5c0d\u8edf\u9ad4\u8a2d\u8a08\u932f\u8aa4\u8a8d\u77e5\u7684\u4f86\u6e90\u3002<\/p>\n

\u6211\u6240\u8a8d\u77e5\u7684\u300creal world\u300d\u662f\u6307\u5c0d\u9818\u57df\u5c08\u5bb6\u5c0d\u554f\u984c\u9818\u57df\u7684\u771f\u5be6\u8a8d\u77e5\uff0c\u4e5f\u5c31\u662f\u6d1e\u5bdf\u554f\u984c\u9818\u57df\u7684\u8a8d\u77e5\u3002\u9818\u57df\u5c08\u5bb6\u591a\u534a\u4e0d\u61c2\u6211\u5011 modeling \u7684\u5de5\u5177\u8207\u6280\u8853\uff0c\u53ea\u6709\u7576\u6211\u5011\u63d0\u4f9b model \u7d66\u4ed6\u5011\u770b\u6642\uff0c\u4ed6\u5011\u624d\u6703\u5927\u81f4\u7406\u89e3\u6211\u5011\u7684 model \u6709\u6c92\u6709\u6db5\u84cb\u4ed6\u5011\u7684\u9700\u6c42\u3002\u5728\u5be6\u52d9\u4e0a\uff0c\u8a31\u591a\u6280\u8853\u4eba\u54e1\u537b\u5f88\u559c\u6b61\u7528\u6280\u8853\u7684\u89d2\u5ea6\u4f86 modeling\uff0c\u7136\u5f8c\u544a\u8a34\u4f7f\u7528\u8005\u9019\u5c31\u662f\u7cfb\u7d71\u7684\u9818\u57df\u6a21\u578b\uff0c\u7d50\u679c\u662f\u9019\u6a23\u7684 model \u5728\u771f\u5be6\u4e16\u754c\u7684\u554f\u984c\u9818\u57df\u4e0a\u4e00\u9ede\u90fd\u4e0d\u76f4\u89c0\uff0c\u56e0\u70ba\u727d\u6d89\u4e86\u592a\u591a\u4e86\u6280\u8853\u7d30\u7bc0\uff08\u7709\u89d2\uff09\uff0c\u6839\u672c\u5c31\u4e0d\u662f\u9818\u57df\u6982\u5ff5\u7684 what to do\uff0c\u800c\u662f\u6280\u8853\u5be6\u4f5c\u7684 how to do\uff0c\u9019\u6a23\u7684\u9818\u57df\u6a21\u578b\u600e\u9ebc\u53ef\u80fd\u505a\u5230\u6982\u5ff5\u4e0a\u7684\u62bd\u8c61\u5316\u5462\uff0c\u62bd\u8c61\u5316\u4e0d\u8db3\uff0c\u5f8c\u7e8c\u5fc5\u7136\u9762\u81e8\u4ee5\u6280\u8853\u5c64\u6b21\u4e3b\u5c0e\u9700\u6c42\u7684\u60e1\u679c\uff0d\u66f4\u5927\u7684\u8907\u96dc\u5ea6\u8207\u66f4\u5c0f\u7684\u5f48\u6027\u3002<\/p>\n

\u8a8d\u6e05\u4e86\u6211\u548c Gameboy \u6240\u8a8d\u5b9a real world \u7684\u4e0d\u540c\u5f8c\uff0c\u6211\u5011\u4f86\u770b\u770b Gameboy \u7528\u4f86\u89e3\u91cb\u300c\u7528 real world \u76f4\u89c0\u7684\u8a8d\u77e5\u4f86 model\uff0c\u9019\u6709\u9ede\u5371\u96aa\u300d\u7684\u4f8b\u5b50\uff1a<\/p>\n

\u6bd4\u5982\u4ee5 \u201c\u6c7d\u8eca\u201d \u70ba\u4f8b<\/p>\n

\u201c\u6c7d\u8eca\u201d \u5728\u8cc7\u7522\u7cfb\u7d71\u3001\u6216\u9032\u92b7\u5b58\u7cfb\u7d71\u3001\u6216\u5728\u67d0\u67d0\u7cfb\u7d71<\/p>\n

\u4e0d\u4e00\u5b9a\u90fd\u6703\u88ab model \u6210\u6c7d\u8eca<\/p>\n

\u53ef\u80fd\u662f Item \u6216 Asset \u6216 anything else<\/p>\n

\u4e5f\u5c31\u662f\u8981\u770b\u6e05\u695a Problem Domain<\/p>\n

(\u5176\u5be6\u4e5f\u5c31\u662f\u60a8\u5728\u672c\u6587\u7684\u984c\u65e8)<\/p>\n

\u6703\u8b1b\u51fa\u9019\u6a23\u7684\u8a71<\/p>\n

\u300c\u7528 real world \u76f4\u89c0\u7684\u8a8d\u77e5\u4f86 model\uff0c\u9019\u6709\u9ede\u5371\u96aa\u300d\u3002<\/p>\n

\u662f\u770b\u5230\u6709\u4e9b\u521d\u5b78\u8005\u5bb9\u6613\u72af\u9019\u6a23\u7684\u554f\u984c (\u6c7d\u8eca\u4e0d\u898b\u5f97\u5728\u696d\u52d9\u9700\u6c42\u88e1\u90fd\u6703\u88ab\u8996\u70ba \u201c\u4ea4\u901a\u5de5\u5177\\\u201d)<\/p><\/blockquote>\n

\u5c31\u9019\u500b\u4f8b\u5b50\u800c\u8a00\uff0c\u6c7d\u8eca\u9019\u500b\u5be6\u9ad4\u5728\u4e0d\u540c\u7684\u7cfb\u7d71\u6703\u770b\u5f85\u6210\u4e0d\u540c\u7684\u6982\u5ff5\uff0c\u4e0d\u4e00\u5b9a\u6703\u88ab modeling\u6210\u300c\u4ea4\u901a\u5de5\u5177\u300d\u3002\u5176\u5be6\u9818\u57df\u6a21\u578b\u662f\u4ee3\u8868\u6211\u5011\u5c0d\u771f\u5be6\u4e16\u754c\u7684\u4e00\u7a2e\uff08\u4e0d\u662f\u552f\u4e00\uff09\u89c0\u9ede\uff0c\u5b83\u7528\u4f86\u8aaa\u660e\u771f\u5be6\u4e16\u754c\u7684\u6982\u5ff5\u662f\u5982\u4f55\u904b\u4f5c\u7684\uff0c\u4f46\u6b63\u5982\u5091\u51fa\u7684\u7269\u7406\u79d1\u5b78\u5bb6\u970d\u91d1<\/a>\u5728\u300a\u80e1\u6843\u88e1\u7684\u5b87\u5b99\u300b<\/a>\u4e2d\u4e00\u66f8\u66fe\u8aaa\u904e\u7684\uff1a\u300c\u6a21\u578b\u4e26\u4e0d\u4ee3\u8868\u4e16\u754c\u7684\u771f\u5be6\u72c0\u614b\uff0c\u5b83\u53ea\u80fd\u7528\u4f86\u5408\u7406\u8aaa\u660e\u4e16\u754c\u6240\u767c\u751f\u7684\u73fe\u8c61\u300d\uff0c\u4efb\u4f55\u6a21\u578b\u90fd\u6703\u6709\u6240\u8b02\u7684\u524d\u63d0\u5047\u8a2d<\/a>\uff08assumptions\uff09\u8207\u9650\u5236\uff08constraint\uff09\uff0d\u5373\u5728\u6982\u5ff5\u4e0a\u6046\u70ba\u771f\u8207\u73fe\u5be6\u4e2d\u5fc5\u9808\u6eff\u8db3\u7684\u689d\u4ef6\u7684\u5b58\u5728\uff0c\u56e0\u70ba\u5c0d\u65bc\u4e00\u500b\u8907\u96dc\u7cfb\u7d71\uff0c\u6211\u5011\u6240\u4e0d\u77e5\u9053\u7684\u9060\u6bd4\u6211\u5011\u77e5\u9053\u7684\u9084\u8981\u591a\uff0c\u5982\u679c\u6c92\u6709\u7528\u9019\u4e9b\u689d\u4ef6\u7684\u9650\u5236\u4f7f\u554f\u984c\u55ae\u7d14\u4e00\u4e9b\uff0c\u6211\u5011\u6839\u672c\u7121\u6cd5\u5c07\u554f\u984c\u6a21\u5f0f\u5316\u3002<\/p>\n

\u6240\u4ee5\u5c0d\u65bc\u9818\u57df\u5efa\u6a21\u800c\u8a00\uff0c\u8a8d\u6e05\u771f\u5be6\u4e16\u754c\u7684\u554f\u984c\uff0c\u5c31\u662f\u767c\u5c55\u6a21\u578b\u7684\u524d\u63d0\u5047\u8a2d\u8207\u9650\u5236\uff0c\u4ee5 Gameboy \u7684\u4f8b\u5b50\u800c\u8a00\uff0c\u4e0d\u540c\u7cfb\u7d71\u7684\u9818\u57df\u6a21\u578b\u5176\u524d\u63d0\u5047\u8a2d\u8207\u9650\u5236\u4e5f\u6703\u4e0d\u540c\uff0c\u6240\u4ee5\u6c7d\u8eca\u7576\u7136\u4e0d\u53ef\u80fd\u90fd\u88ab\u770b\u5f85\u6210\u4ea4\u901a\u5de5\u5177\uff0c\u5982\u679c\u5be6\u969b\u4e0a\u767c\u751f\u9019\u6a23\u7684\u7e46\u8aa4\uff0c\u5176\u5be6\u662f\u4ee3\u8868\u5efa\u6a21\u8005\u4e0d\u5920\u4e86\u89e3 real world\uff0c\u800c\u975e real world \u7684\u76f4\u89c0\u6709\u554f\u984c\u3002<\/p>\n

\u4ee5\u7ba1\u7406\u7684\u89d2\u5ea6\u800c\u8a00\uff0c\u5c0d triple constraint<\/a>\uff08\u898f\u6a21\u3001\u6642\u7a0b\u3001\u6210\u672c\u53ca\u54c1\u8cea\u56db\u8b8a\u6578\uff09\u7684\u7ba1\u7406\uff0c\u5176\u4e2d\u898f\u6a21\u7684\u9650\u5236\u5c31\u5305\u542b\u4e86\u5c0d\u771f\u5be6\u4e16\u754c\u7684\u524d\u63d0\u5047\u8a2d\u8207\u9650\u5236\u3002\u9019\u662f\u4ee5\u8edf\u9ad4\u5c08\u6848\u7684\u6574\u9ad4\u89d2\u5ea6\u800c\u8a00\uff0c\u800c\u975e\u4ee5\u5c08\u6848\u6210\u54e1\u7279\u5b9a\u7684\u89d2\u8272\u4f86\u770b\uff0c\u5c0d\u65bc\u5c08\u6848\u7ba1\u7406\u8005\u800c\u8a00\uff0c\u6240\u8b02\u7684 real world \u7684\u76f4\u89c0\u662f\u4e0d\u61c9\u8a72\u5305\u542b\u67d0\u4e9b\u5fa7\u898b\u7684\u3002<\/p>\n

\u5c0d\u554f\u984c\u63a1\u7528\u4e0d\u540c\u7684\u89c0\u9ede\u6703\u5c0d Business Semantic \u6709\u4e0d\u540c\u7684\u8a8d\u77e5\uff0c\u6240\u4ee5\u4e4b\u524d<\/a>\u4e3b\u8981\u60f3\u8868\u9054\u7684\u4e26\u4e0d\u5728\u65bc\u985e\u5225\u8a72\u7528 is-a \u6216 has-a\uff0c\u985e\u5225\u8a2d\u8a08\u8a72\u63a1\u7528\u7e7c\u627f\u6216\u662f\u7d44\u5408\u4e26\u4e0d\u662f\u5fc5\u7136\u7684\uff0c\u5b83\u5011\u662f\u81ea\u7136\u800c\u7136\u5076\u7136\u6210\u5f62\u7684\uff0c\u7528 is-a \u6216 has-a \u5be6\u4f5c\uff0c\u53ea\u662f\u4e00\u7a2e\u624b\u6bb5\u3002\u6211\u5011\u8981\u57f9\u990a\u61c9\u7121\u6240\u4f4f\u800c\u751f\u5176\u5fc3<\/a>\u7684\u667a\u6167\uff0c\u8a8d\u6e05\u6240\u8b02\u7684\u76f4\u89c0\u662f\u76f8\u5c0d\u7684\uff0c\u4ea6\u5373\u7576\u554f\u984c\u7126\u9ede\u8b8a\u5316\u6642\uff0c\u539f\u4f86\u7684\u76f4\u89c0\u5c31\u8b8a\u6210\u4e86\u300c\u672c\u4f86\u7121\u4e00\u7269\u300d\uff0c\u65e2\u7136\u5982\u6b64\uff0c\u90a3\u6211\u5011\u300c\u4f55\u9808\u60f9\u5875\u57c3\u300d\u5462\uff1f<\/p>\n

\u96d6\u7136\u4e0d\u7576\u7684\u7e7c\u627f\u6703\u5c0e\u81f4\u60e1\u679c\uff0c\u4f46\u904e\u65bc\u8907\u96dc\u7684\u7d44\u5408\u95dc\u4fc2\u66f4\u662f\u4e0d\u5fc5\u8981\u8907\u96dc\u5ea6\u7684\u539f\u51f6\uff0c\u5e38\u898b\u6709\u4e9b\u8a2d\u8a08\u8005\u592a\u65e9\u63a1\u7528 State \u6216 Strategy \u6a23\u5f0f\u53cd\u800c\u6df7\u6dc6\u4e86\u8a2d\u8a08\u7684\u7126\u9ede\uff0c\u6700\u5f8c\u537b\u683d\u5165\u6c92\u6709\u5fc5\u8981\u7684\u8a2d\u8a08\u3002\u5982\u679c\u6211\u5011\u6c92\u6709\u8a8d\u51fa\u771f\u6b63\u7684\u554f\u984c\u7684\u95dc\u9375\uff0c\u60a8\u600e\u80fd\u671f\u5f85\u60a8\u7684 model \u53ef\u4ee5\u6293\u5230\u91cd\u9ede\uff0c\u6c92\u6709\u91cd\u9ede\uff0c\u6839\u672c\u5c31\u4e0d\u5fc5\u5962\u8a00\u5c01\u88dd\u3001\u62bd\u8c61\u5316\u6216\u591a\u578b\uff01\u771f\u5be6\u4e16\u754c\u7684\u554f\u984c\u5f80\u5f80\u662f\u975e\u7d50\u69cb\u5316\u7684\u5c64\u9762\u6bd4\u8f03\u5927\uff0c\u8981\u7528\u7d50\u69cb\u4f86\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\uff0c\u60a8\u7684\u7cfb\u7d71\u7d50\u69cb\u5fc5\u9808\u5145\u5206\u8003\u91cf\u5408\u9069\u7684\u7cfb\u7d71\u884c\u70ba\uff0c\u7f3a\u5c11\u7cfb\u7d71\u884c\u70ba\u7684\u7cfb\u7d71\u7d50\u69cb\uff0c\u662f\u4e0d\u6703\u6709\u7cfb\u7d71\u5b8c\u6574\u8a9e\u610f\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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