{"id":13888,"date":"2014-12-10T14:29:04","date_gmt":"2014-12-10T05:29:04","guid":{"rendered":"http:\/\/lab.synergy-marketing.co.jp\/?p=10674"},"modified":"2018-11-14T16:33:50","modified_gmt":"2018-11-14T07:33:50","slug":"technical_debt","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2014\/12\/10\/technical_debt\/","title":{"rendered":"\u6a5f\u68b0\u5b66\u7fd2\u306e\u3054\u5229\u7528\u306f\u8a08\u753b\u7684\u306b"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u99ac\u5834\u3067\u3059\u3002<\/p>\n<p>\u30b7\u30ca\u30b8\u30fc\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u6280\u8853\u8005\u5411\u3051\u30b5\u30a4\u30c8<a href=\"http:\/\/www.techscore.com\/blog\/\" target=\"_blank\">TECHSCORE<\/a>\u3067\u884c\u308f\u308c\u3066\u3044\u308b<a href=\"http:\/\/www.techscore.com\/blog\/2014\/11\/27\/techscore-advent-calendar-2014\/\" target=\"_blank\">TECHSCORE Advent Calendar 2014<\/a>\u306b\u53c2\u52a0\u3057\u307e\u3057\u305f\u3002<a href=\"http:\/\/www.techscore.com\/blog\/2014\/12\/10\/researcher_in_software_company\/\" target=\"_blank\">\u3053\u306e\u8a18\u4e8b<\/a>\u3067Google \u306e\u8ad6\u6587\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u3053\u3067\u306f\u3053\u306e\u8ad6\u6587\u306e\u7ffb\u8a33\u30e1\u30e2\u3092\u516c\u958b\u3057\u307e\u3059\u3002\u53c2\u8003\u306b\u306a\u308c\u3070\u3002<\/p>\n<h2>\u6a5f\u68b0\u5b66\u7fd2\uff1a\u6280\u8853\u7684\u8ca0\u50b5\u3092\u751f\u3080\u9ad8\u91d1\u5229\u306a\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9<\/h2>\n<p>\u8ad6\u6587\u306f<a href=\"http:\/\/static.googleusercontent.com\/media\/research.google.com\/en\/us\/pubs\/archive\/43146.pdf\" target=\"_blank\">\u3053\u3053<\/a>\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>Abstract<\/h2>\n<p> \u6a5f\u68b0\u5b66\u7fd2\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u8907\u96d1\u3067\u3059\u3070\u3089\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u304c\u3059\u3050\u3067\u304d\u308b\u3002<br \/>\n \u3067\u3082\u3001\u305d\u308c\u304c\u300c\u305f\u3060\u300d\u3067\u624b\u306b\u5165\u308b\u3001\u3068\u8003\u3048\u3066\u3044\u308b\u306e\u306a\u3089\u3001\u305d\u308c\u306f\u5371\u967a\u3060\u3002<br \/>\n \u6a5f\u68b0\u5b66\u7fd2\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u7c21\u5358\u306b\u3010\u6280\u8853\u7684\u8ca0\u50b5\u3011\u3092\u3082\u3064\u30b7\u30b9\u30c6\u30e0\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u304b\u3089\u3002<br \/>\n \u3053\u306e\u8ad6\u6587\u3067\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u3092\u30b7\u30b9\u30c6\u30e0\u306b\u5c0e\u5165\u3059\u308b\u5834\u5408\u306e\u300c\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u300d\u3092\u7d39\u4ecb\u3059\u308b<\/p>\n<h2>1.\u6a5f\u68b0\u5b66\u7fd2\u3068\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0<\/h2>\n<ul class=\"disc\">\n<li>\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u300c\u6280\u8853\u7684\u8ca0\u50b5\u300d\u3068\u3044\u3046\u30a2\u30a4\u30c7\u30a3\u30a2\u304c\u3042\u308b<\/li>\n<li>\u89e3\u6d88\u3059\u308b\u306b\u306f\u300c\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u300d\u300c\u30c6\u30b9\u30c8\u306e\u30ab\u30d0\u30ec\u30c3\u30b8\u3092\u3042\u3052\u308b\u300d\u300c\u3044\u3089\u306a\u3044\u30b3\u30fc\u30c9\u3092\u524a\u9664\u300d\u300c\u758e\u7d50\u5408\u300d\u300cAPI\u3067\u3064\u306a\u3052\u308b\u300d\u300c\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6574\u5099\u300d<\/li>\n<li>\u6a5f\u68b0\u5b66\u7fd2\u3092\u542b\u3080\u30b7\u30b9\u30c6\u30e0\u306f\u901a\u5e38\u306e\u3082\u306e\u3088\u308a\u8907\u96d1\u3067\u3001\u5927\u304d\u306a\u6280\u8853\u7684\u8ca0\u50b5\u3092\u751f\u307f\u3084\u3059\u3044<\/li>\n<li>\u6a5f\u68b0\u5b66\u7fd2\u305d\u306e\u3082\u306e\u306f\u30d6\u30e9\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3068\u3057\u3066\u6271\u308f\u308c\u308b<br \/>\n\u3000\u3000\u2192\u3000\u300c\u306e\u308a\u300d\u3068\u306a\u308b\u30b3\u30fc\u30c9\u3001\u8abf\u6574\u3059\u308b\u30b3\u30fc\u30c9\u3000<br \/>\n\u3000\u3000\u2192\u3000\u4ed6\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u5bc6\u306a\u7d50\u5408\u3092\u751f\u3080<\/li>\n<li>\u5916\u306e\u30b7\u30b9\u30c6\u30e0\u5909\u66f4\u3000\u2192\u3000\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u81f4\u547d\u7684\u306a\u5f71\u97ff<\/li>\n<li>\u304d\u3061\u3093\u3068\u610f\u56f3\u3057\u305f\u51e6\u7406\u3092\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u76e3\u8996\u3059\u308b\u3053\u3068\u3082\u96e3\u3057\u3044<\/li>\n<li>\u30a2\u30ab\u30c7\u30df\u30c3\u30af\u3068\u9055\u3044\u3001\u9577\u3044\u76ee\u3067\u307f\u308b\u3068\u3001\u3053\u306e\u3042\u305f\u308a\u306e\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981<\/li>\n<\/ul>\n<h2>2. \u8907\u96d1\u306a\u30e2\u30c7\u30eb\u306f\u5883\u754c\u3092\u6d78\u98df\u3059\u308b<\/h2>\n<p>\u6a5f\u68b0\u5b66\u7fd2\u306b\u306f\u3089\u3080\u8ab2\u984c\uff1a\"\u5916\u90e8\u30c7\u30fc\u30bf\u3078\u306e\u4f9d\u5b58\u306a\u3057\u306b\u3001\u671b\u3080\u632f\u821e\u3092\u3059\u308b\u30bd\u30d5\u30ed\u30a6\u30a7\u30a2\u3092\u3001\u52b9\u679c\u7684\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\"<\/p>\n<h3>2.1\u3000Entanglement \uff08\u3082\u3064\u308c\u3000\u3042\u308b\u3044\u306f\u3000\u9244\u6761\u7db2\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u6a5f\u68b0\u5b66\u7fd2\u306f\u8907\u6570\u306e\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u304b\u3089\u4f55\u304b\u5c0e\u304d\u3060\u3059\u3001\u3068\u3044\u3046\u6027\u683c\u4e0a\u304d\u3061\u3093\u3068\u758e\u306a\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u306e\u304c\u96e3\u3057\u3044<br \/>\n\u3000\u2192\u3000CACE : Changing Anything Changes Everything<\/li>\n<li>\u5bfe\u7b561 : \u3000\u30e2\u30c7\u30eb\u3092\u5206\u89e3\u3001\u305f\u3060\u3057\u30b9\u30b1\u30fc\u30eb\u3057\u306a\u304f\u306a\u308b<\/li>\n<li>\u5bfe\u7b562 : \u3000\u30e2\u30c7\u30eb\u306e\u63a8\u8ad6\u306e\u632f\u821e\u306b\u95a2\u3059\u308b\u6df1\u3044\u6d1e\u5bdf\u3092\u5f97\u308b\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u958b\u767a\u3059\u308b\uff08?\u3000\u3059\u307f\u307e\u305b\u3093\u3001\u308f\u304b\u3089\u306a\u304b\u3063\u305f)<\/li>\n<li>\u5bfe\u7b563 :   \u3088\u308a\u6d17\u7df4\u3055\u308c\u3066\u3044\u308b\u6b63\u898f\u5316\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3059\u308b<\/li>\n<li>\u3069\u306e\u5bfe\u7b56\u3082\u5f79\u7acb\u3064\u5834\u5408\u3082\u3042\u308b\u304c\u3001\u3044\u305a\u308c\u306b\u3057\u308d\u3053\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u306e\u306f\u6a5f\u68b0\u5b66\u7fd2\u306e\u5bbf\u547d\u3002<\/li>\n<li>\u6700\u521d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6a5f\u68b0\u5b66\u7fd2\u30b7\u30b9\u30c6\u30e0\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u306e\u306f\u7c21\u5358\u3001\u3051\u308c\u3069\u3082\u6539\u826f\u3057\u3066\u3044\u304f\u306e\u306f\u96e3\u3057\u3044<\/li>\n<li>Ver 1.0 \u306e\u7de0\u3081\u5207\u308a\u306e\u30d7\u30ec\u30c3\u30b7\u30e3\u30fc\u306b\u8ffd\u308f\u308c\u3066\u3001\u8efd\u304f\u6271\u308f\u308c\u3084\u3059\u3044<\/li>\n<\/ul>\n<h3>2.2\u3000Hidden Feedback Loops (\u96a0\u3055\u308c\u305f\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af \u30eb\u30fc\u30d7\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u300c\u96a0\u308c\u305f\u300d\u30eb\u30fc\u30d7\u306e\u4f8b\u3092\u7d39\u4ecb<\/li>\n<li>\u4f8b\uff1aCTR\u30e2\u30c7\u30eb<\/li>\n<ul class=\"disc\">\n<li> x_week \u5909\u6570\uff1a\u904e\u53bb\uff11\u9031\u9593\u3067\u30e6\u30fc\u30b6\u304c\u30af\u30ea\u30c3\u30af\u3057\u305f\u30cb\u30e5\u30fc\u30b9\u306e\u6570\u3001CTR\u30e2\u30c7\u30eb\u306e\u8aac\u660e\u5909\u6570\u306b\u5229\u7528<\/li>\n<li>\u30e2\u30c7\u30eb\u3092\u5909\u66f4\u3057\u305f\u3089\u3001\u6539\u5584\u3057\u305f\u3000\uff1d\u3000\u30af\u30ea\u30c3\u30af\u6570\u304c\u3042\u304c\u308b<br \/> <br \/>\n\u2192\u3000\u30e6\u30fc\u30b6\u304c\u591a\u304f\u30af\u30ea\u30c3\u30af\u3059\u308b\u3088\u3046\u306b\u306a\u308b<br \/> <br \/>\n\u2192\u3000\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u6539\u5584\u306e\u7d50\u679c\u306f\uff11\u9031\u9593\u3067\u306f\u660e\u3089\u304b\u306b\u306a\u3089\u306a\u3044\u3000\u306a\u305c\u306a\u3089\u3000x_week \u304c\u5f93\u5c5e\u5909\u6570\u3060\u304b\u3089<br \/>\n\u2192\u3000\u30e2\u30c7\u30eb\u304c\u65b0\u3057\u3044\u30e2\u30c7\u30eb\u306e\u30c7\u30fc\u30bf\u3092\u8a3c\u62e0\u3068\u3057\u3066\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u3068\u3001\u30e2\u30c7\u30eb\u306f\u305d\u306e\u65b0\u3057\u3044x_week\u306b\u5408\u308f\u305b\u3066\u5b66\u7fd2\u3059\u308b\u3000...<\/li>\n<\/ul>\n<li>\u5f93\u5c5e\u5909\u6570\u304c\u76ee\u7684\u5909\u6570\u306e\u4e00\u90e8\u3068\u306a\u308b\u5834\u5408\u3001\u30e2\u30c7\u30eb\u304c\u3086\u3063\u304f\u308a\u3068\u632f\u308b\u821e\u3048\u3092\u5909\u3048\u3066\u3044\u304f\u306e\u3067\u3001\u8a55\u4fa1\u304c\u96e3\u3057\u3044\u3057\u3001\u5358\u7d14\u306a\u6539\u826f\u3067\u3082\u5927\u304d\u306a\u30b3\u30b9\u30c8\u304c\u767a\u751f\u3059\u308b<\/li>\n<\/ul>\n<h3>2.3\u3000Undeclared Consumers \uff08\u5ba3\u8a00\u3055\u308c\u3066\u3044\u306a\u3044\u6d88\u8cbb\u8005\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u6a5f\u68b0\u5b66\u7fd2\u306e\u7d50\u679c\u3001\u3042\u308b\u3044\u306f\u9014\u4e2d\u7d4c\u904e\u304c\u601d\u3044\u306e\u307b\u304b\u305f\u304f\u3055\u3093\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u3053\u3068<\/li>\n<li>\u3053\u306e\u300c\u77e5\u3089\u306a\u3044\u3046\u3061\u306b\u6d88\u8cbb\u3057\u3066\u3044\u308b\u4eba\u305f\u3061\u300d\u306f\u3001\u6700\u5584\u3067\u3082\u300c\u9ad8\u4fa1\u300d\u3001\u6700\u60aa\u3060\u3068\u300c\u5371\u967a\u300d\n<ul class=\"disc\">\n<li>\u9ad8\u4fa1\uff1a\u30e2\u30c7\u30eb\u3092\u5909\u3048\u3065\u3089\u304f\u306a\u308b<\/li>\n<li>\u5371\u967a\uff1a \" additional hidden feedback loop\"<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>3 \u30b3\u30fc\u30c9\u306e\u4f9d\u5b58\u6027\u3088\u308a\u30c7\u30fc\u30bf\u306e\u4f9d\u5b58\u95a2\u4fc2\u306e\u65b9\u304c\u9ad8\u304f\u3064\u304f<\/h2>\n<p>\u9759\u7684\u89e3\u6790\u3067\u691c\u51fa\u3057\u3084\u3059\u3044\u30b3\u30fc\u30c9\u306e\u4f9d\u5b58\u6027\u306b\u5bfe\u3057\u3066\u3001\u30c7\u30fc\u30bf\u4f9d\u5b58\u6027\u3092\u691c\u51fa\u3059\u308b\u30b3\u30fc\u30c9\u306f\u3042\u307e\u308a\u306a\u3044\u306e\u3067\u3001\u7c21\u5358\u306b\u5de8\u5927\u306a\u30c7\u30fc\u30bf\u4f9d\u5b58\u30c1\u30a7\u30fc\u30f3\u304c\u3044\u3068\u3082\u7c21\u5358\u306b\u3067\u304d\u3042\u304c\u3063\u3066\u3057\u307e\u3046<\/p>\n<h3>3.1\u3000Unstable Data Dependencies \uff08\u4e0d\u5b89\u5b9a\u306a\u30c7\u30fc\u30bf\u3078\u306e\u4f9d\u5b58\u6027\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u6a5f\u68b0\u5b66\u7fd2\u3067\u5229\u7528\u3059\u308b\u5909\u6570\u306funstable\u306a\u3053\u3068\u304c\u591a\u3044(implicitly\/explicitly)  <br \/>\n\u3000\u2192\u3000\u5165\u529b\u4fe1\u53f7\u306e\u5909\u5316\u306f\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u6a5f\u68b0\u5b66\u7fd2\u30b7\u30b9\u30c6\u30e0\u3068\u95a2\u4fc2\u306a\u304f\u8d77\u3053\u308b<\/li>\n<li>\u5bfe\u7b56\uff1a\u3000versioned copy \u3092\u3064\u304f\u308b\u3002\u5b89\u5b9a\u3059\u308b\u304c\u3001\u6f5c\u5728\u7684\u306a\u8001\u5316\u3092\u751f\u307f\u51fa\u3059\u3057\u3001\u8907\u6570\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u904b\u7528\u306f\u6587\u5b57\u901a\u308a\u306e\u6280\u8853\u7684\u306a\u8ca0\u50b5\u3092\u751f\u307f\u51fa\u3059<\/li>\n<\/ul>\n<h3>3.2\u3000Underutilized Data Dependencies \uff08\u672a\u6d3b\u7528\u30c7\u30fc\u30bf\u3078\u306e\u4f9d\u5b58\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u521d\u671f\u30e2\u30c7\u30eb\u306b\u7d44\u307f\u8fbc\u3093\u3060\u5909\u6570\u304c\u6539\u5584\u306b\u3088\u308a\u4e0d\u8981\u306b\u306a\u3063\u305f<\/li>\n<li>\u52b9\u679c\u7684\u304b\u3069\u3046\u304b\u3001\u8a55\u4fa1\u3059\u3089\u3057\u3066\u3044\u306a\u3044<\/li>\n<li>\u305d\u3093\u306a\u306b\u5909\u308f\u3089\u306a\u3044\u3051\u3069\u3001\u3061\u3087\u3063\u3068\u5909\u308f\u308b\uff08\u6709\u610f\u5dee\u304c\u308f\u305a\u304b\u306b\u3042\u308b\uff09\u304b\u3089\u5165\u308c\u308b<\/li>\n<li>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u7d50\u679c\u306b\u5f71\u97ff\u306a\u3044\u3082\u306e\u306e\u4e00\u5ea6\u7d44\u307f\u8fbc\u3093\u3060\u5909\u6570\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u7684\u306b\u5916\u3059\u306e\u306f\u96e3\u3057\u3044<\/li>\n<li>\u5bfe\u7b56\uff1a\u5b9a\u671f\u7684\u306b\u5909\u6570\u306e\u7cbe\u67fb\u3092\u884c\u3044\u307e\u3057\u3087\u3046<\/li>\n<\/ul>\n<h3>3.3\u3000Static Analysis of Data Dependencies \uff08\u30c7\u30fc\u30bf\u306e\u4f9d\u5b58\u6027\u3092\u9759\u7684\u306b\u89e3\u6790\u3059\u308b)<\/h3>\n<ul class=\"disc\">\n<li>\u30c7\u30fc\u30bf\u4f9d\u5b58\u6027\u306e\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306f\u3001\u306a\u3044\u3053\u3068\u306f\u306a\u3044\uff08\u3089\u3057\u3044...\uff09<\/li>\n<\/ul>\n<h3>3.4\u3000Correcton Cascades (\u30ab\u30b9\u30b1\u30fc\u30c9\u306e\u88dc\u6b63\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u30c7\u30fc\u30bf\u306e\u30ab\u30b9\u30b1\u30fc\u30c9\u306f\u3001deadlock \u3092\u751f\u3080<\/li>\n<li>\u5bfe\u7b56\uff1a(? ... \u308f\u304b\u3089\u306a\u304b\u3063\u305f\uff01\u3060\u308c\u304b!)<\/li>\n<\/ul>\n<h2>4. \u30b7\u30b9\u30c6\u30e0\u30ec\u30d9\u30eb\u306e\u30b9\u30d1\u30b2\u30c3\u30c6\u30a3<\/h2>\n<p>\u3044\u304f\u3064\u304b\u306e\u30b7\u30b9\u30c6\u30e0\u30c7\u30b6\u30a4\u30f3\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3092\u307f\u3066\u307f\u3088\u3046<\/p>\n<h3>4.1\u3000Glue Code \uff08\u306e\u308a\u3000\u30b3\u30fc\u30c9\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u90e8\u5206\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u3069\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044<\/li>\n<li>\u5de8\u5927\u306a\u306e\u308a\u30b3\u30fc\u30c9\u304c\u66f8\u304b\u308c\u308b\u3000\u2192\u3000\u7279\u5b9a\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u56fa\u5b9a\u3055\u308c\u308b<\/li>\n<li>\u6a5f\u68b0\u5b66\u7fd2\u30b7\u30b9\u30c6\u30e0\u3068\u4e00\u822c\u7684\u306aML\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u30c7\u30b6\u30a4\u30f3\u306e\u30b4\u30fc\u30eb\u304c\u9055\u3046<\/li>\n<li>\u7279\u5b9a\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u7279\u5b9a\u306e\u30e9\u30fc\u30b8\u30b9\u30b1\u30fc\u30eb\u306a\u554f\u984c\u306b\u53d6\u308a\u7d44\u3080<\/li>\n<li>Glue Code\u30d1\u30bf\u30fc\u30f3\u306f\u4ed6\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308b\u5b9f\u9a13\u3092\u96e3\u3057\u304f\u3059\u308b<\/li>\n<li>\u5bfe\u7b56:\u7279\u5b9a\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u518d\u5b9f\u88c5 \u3002\u4f8b\u3048\u3070\u3001R\u306b\u3042\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092C++\u3084Java\u3067\u66f8\u304d\u76f4\u3059<\/li>\n<li>\u3081\u3093\u3069\u304f\u3055... \u3068\u601d\u3046\u304b\u3082\u3057\u308c\u306a\u3044\u304c\u3001\u7c21\u5358\u306b\u4fdd\u5b88\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3057\u3001\u4ed6\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3082\u30c6\u30b9\u30c8\u3057\u3084\u3059\u3044<\/li>\n<li>\u6a5f\u68b0\u5b66\u7fd2\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u306e\u30b3\u30fc\u30c9\u306f\u5168\u4f53\u306e5%\u3001\u4ed695%\u306fGlue Code<\/li>\n<li>API \u3092\u518d\u5229\u7528\u3057\u7d9a\u3051\u308b\u3088\u308a\u4f5c\u308a\u76f4\u3057\u305f\u65b9\u304c\u3044\u3044\u3088<\/li>\n<\/ul>\n<h3>4.2\u3000Pipeline Jungles\uff08\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u30b8\u30e3\u30f3\u30b0\u30eb)<\/h3>\n<ul class=\"disc\">\n<li>\u65b0\u3057\u3044\u30b7\u30b0\u30ca\u30eb\u3084\u65b0\u3057\u3044\u60c5\u5831\u30bd\u30fc\u30b9\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3068\u304d\u306b\u304a\u304d\u3084\u3059\u3044<br \/>\n\u2192\u3000\u4e2d\u9593\u30d5\u30a1\u30a4\u30eb\u305f\u3061\u3068\u3068\u3082\u306b\u3001scrapes\/joins\/sampling steps \u306e\u30b8\u30e3\u30f3\u30b0\u30eb\u304c<\/li>\n<li>\u9ad8\u3044 end to end integration tests<\/li>\n<li>\u5bfe\u7b56\uff1adata \u306e\u53ce\u96c6\u3068\u7d20\u6027\u306e\u5c55\u958b\u3092\u5168\u4f53\u8ad6\u3067\u8003\u3048\u3088\u3046<\/li>\n<li>\u904e\u53bb\u3092\u6e05\u7b97\u3059\u308b\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u304b\u306a\u308a\u306e\u6295\u8cc7\u306b\u306a\u308b\u304c\u3001\u30b3\u30b9\u30c8\u3092\u6291\u3048\u3001\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u3042\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/li>\n<li>\u3053\u308c\u3089\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30ea\u30b5\u30fc\u30c1\u3068\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u5f79\u5272\u304c\u5206\u65ad\u3055\u308c\u306f\u3058\u3081\u3066\u3044\u308b\u524d\u5146<\/li>\n<li>Google \u3067\u306f\u3001researcher\u3068engineer\u304c\u540c\u3058\u30c1\u30fc\u30e0\u306b<\/li>\n<\/ul>\n<h3>4.3 Dead Experimental Codepaths\uff08\u6b7b\u306b\u7d76\u3048\u305f\u5b9f\u9a13\u30b3\u30fc\u30c9\u30d1\u30b9\uff09<\/h3>\n<ul class=\"disc\">\n<li>glue code \u3084 pipeline jungles \u3092\u306a\u304f\u3057\u3066\u3044\u304f\u3068\u3001\u5b9f\u9a13\u3092\u3082\u3063\u3068\u3057\u305f\u304f\u306a\u308b<\/li>\n<li>\u305f\u3060\u3057\u3001\u5b9f\u9a13\u30b3\u30fc\u30c9\u3078\u306e\u4e92\u63db\u6027\u3092\u7dad\u6301\u3059\u308b\u306e\u306f\u3057\u3093\u3069\u3044<\/li>\n<li>\u5b9f\u9a13\u30b3\u30fc\u30c9\u304c\u81f4\u547d\u7684\u306a\u640d\u5bb3\u3092\u3082\u305f\u3089\u3057\u305f\u4e8b\u4f8b\u3082\u3042\u308b<\/li>\n<li>\u5bfe\u7b56\uff1a\u5b9a\u671f\u7684\u306b\u5b9f\u9a13\u30d6\u30e9\u30f3\u30c1\u306e\u8a55\u4fa1\u3092\u884c\u3044\u524a\u9664\u3059\u308b<\/li>\n<li>\u52b9\u7387\u7684\u306b\u3059\u3059\u3081\u308b\u306b\u306f\u3001\u5b9a\u671f\u7684\u306b\u90e8\u54c1\u3092\u66f8\u304d\u63db\u3048\u3066\u3044\u304f<\/li>\n<\/ul>\n<h3>4.4\u3000Configuration Debt<\/h3>\n<ul class=\"disc\">\n<li>\u8a2d\u5b9a\u306f\u8efd\u8996\u3055\u308c\u304c\u3061<\/li>\n<\/ul>\n<h2>5 . \u5916\u754c\u306e\u5909\u5316\u306b\u53d6\u308a\u7d44\u3080<\/h2>\n<p>\u4e0d\u5b89\u5b9a\u306a\u5916\u306e\u4e16\u754c\u3068\u76f8\u4e92\u306b\u901a\u4fe1\u3059\u308b\u300c\u6a5f\u68b0\u5b66\u7fd2\u30b7\u30b9\u30c6\u30e0\u300d\u3092\u3069\u3046\u904b\u7528\u3059\u308b\u304b<\/p>\n<h3>5.1\u3000Fixed Thresholdes\u3000in Dynamic Systems (\u52d5\u7684\u30b7\u30b9\u30c6\u30e0\u5185\u306e\u56fa\u5b9a\u3055\u308c\u305f\u95be\u5024\uff09<\/h3>\n<ul class=\"disc\">\n<li>\u95be\u5024\u3092\u3069\u3046\u3059\u308b\u304b\uff1f\u3000manually set \u2192\u3000\u30e2\u30c7\u30eb\u3092\u5909\u3048\u305f\u3089\u95be\u5024\u3082\u304b\u3048\u306a\u3044\u3068<\/li>\n<li>\u5bfe\u7b56\uff1a\u3000\u95be\u5024\u3092\u8a55\u4fa1\u30c7\u30fc\u30bf\u304b\u3089\u7b97\u51fa\u3059\u308b\u3088\u3046\u306b\u3059\u308b<\/li>\n<\/ul>\n<h3>5.2\u3000When Correlations No Longer Correlate (\u3059\u3067\u306b\u76f8\u95a2\u306e\u306a\u3044\u76f8\u95a2\u95a2\u4fc2)<\/h3>\n<ul class=\"disc\">\n<li>\u4f9d\u5b58\u95a2\u4fc2\u306e\u306a\u3044\u76f8\u95a2\u95a2\u4fc2\u306f \u96a0\u308c\u305f\u8ca0\u50b5\u306e\u3082\u3046\u3072\u3068\u3064\u306e\u30bd\u30fc\u30b9\u306b\u306a\u308a\u3046\u308b<\/li>\n<\/ul>\n<h3>5.3\u3000Monitoring and Testing (\u76e3\u8996\u3068\u30c6\u30b9\u30c8)<\/h3>\n<ul class=\"disc\">\n<li>\u6a5f\u68b0\u5b66\u7fd2\u304c\u300c\u610f\u56f3\u901a\u308a\u300d\u52d5\u3044\u3066\u3044\u308b\u304b\u3001\u3069\u3046\u3084\u3063\u305f\u3089\u30c6\u30b9\u30c8\u304c\u3067\u304d\u308b\u306e\u304b\uff1f<\/li>\n<li>Predicion Bias \u3068 Action Limits <\/li>\n<\/ul>\n<h2>6. \u7d50\u8ad6\u3000<\/h2>\n<p>\u304c\u3093\u3070\u3063\u3066\u6255\u3063\u3066\u3044\u3053\u3046\uff01<\/p>\n<h2>\u3055\u3044\u3054\u306b<\/h2>\n<p>\u7d42\u76e4\u82e5\u5e72\u606f\u5207\u308c\u611f\u304c\u3042\u308a\u3001\u3059\u307f\u307e\u305b\u3093\u3002\u8ad6\u6587\u306f\u3082\u3046\u5c11\u3057\u8a73\u3057\u304f\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u3057\u3001\u79c1\u306e\u7406\u89e3\u306e\u53ca\u3070\u306a\u3044\u3068\u3053\u308d\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u304a\u6642\u9593\u304c\u3042\u308c\u3070\u305c\u3072\u539f\u8457\u3092\u304a\u697d\u3057\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u99ac\u5834\u3067\u3059\u3002<\/p>\n<p>\u30b7\u30ca\u30b8\u30fc\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u306e\u6280\u8853\u8005\u5411\u3051\u30b5\u30a4\u30c8TECHSCORE\u3067\u884c\u308f\u308c\u3066\u3044\u308bTECHSCORE Advent Calendar 2014\u306b\u53c2\u52a0\u3057\u307e\u3057\u305f\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2014\/12\/10\/technical_debt\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[259,18],"tags":[],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/13888"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=13888"}],"version-history":[{"count":1,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/13888\/revisions"}],"predecessor-version":[{"id":13927,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/13888\/revisions\/13927"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=13888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=13888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=13888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}