{"id":1545,"date":"2018-11-16T15:49:01","date_gmt":"2018-11-16T15:49:01","guid":{"rendered":"http:\/\/demensdeum.com\/blog\/?p=1545"},"modified":"2024-12-16T22:32:41","modified_gmt":"2024-12-16T19:32:41","slug":"bugs-count-estimation","status":"publish","type":"post","link":"https:\/\/demensdeum.com\/blog\/zh\/2018\/11\/16\/bugs-count-estimation\/","title":{"rendered":"\u4f60\u90a3\u91cc\u6709\u591a\u5c11\u9519\u8bef\uff1f"},"content":{"rendered":"<p>\u5728<a href=\"https:\/\/news.ycombinator.com\/\" target=\"_blank\" rel=\"noopener\">\u9ed1\u5ba2\u65b0\u95fb<\/a>\u4e0a\uff0c\u6211\u53d1\u73b0\u4e86\u4e00\u7bc7\u975e\u5e38\u6709\u8da3\u7684\u6587\u7ae0\uff0c\u5176\u4e2d\u4f5c\u8005\u5efa\u8bae\u4f7f\u7528Petersen-Lincoln \u65b9\u6cd5\uff0c\u751f\u7269\u5b66\u5bb6\u4f7f\u7528\u8be5\u65b9\u6cd5\u6765\u8ba1\u7b97\u9e1f\u7c7b\u3001\u7334\u5b50\u548c\u5176\u4ed6\u52a8\u7269\u7684\u6570\u91cf\uff0c\u4ee5\u4fbf\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d*\u51fb\u9f13*<strong>\u8ba1\u6570\u9519\u8bef<\/strong>\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1550\" src=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/bigfoot.jpg\" alt=\"\" width=\"554\" height=\"369\" srcset=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/bigfoot.jpg 1024w, https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/bigfoot-300x200.jpg 300w, https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/bigfoot-768x512.jpg 768w\" sizes=\"auto, (max-width: 554px) 100vw, 554px\" \/><\/p>\n<p>\u81ea\u7136\u6816\u606f\u5730\u7684\u866b\u5b50&#8211; <a href=\"https:\/\/www.flickr.com\/photos\/loimere\/4667972182\/in\/photostream\/\" target=\"_blank\" rel=\"noopener\">\u5927\u811a\u602a\u7784\u51c6<\/a> \u4f5c\u8005\uff1a<a href=\"https :\/\/www.flickr.com\/photos\/loimere\/\" target=\"_blank\" rel=\"noopener\">\u5fb7\u91cc\u514b\u00b7\u54c8\u7279\u83f2\u5c14\u5fb7<\/a><\/p>\n<p>\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u6211\u4eec\u53d6\u4e24\u4e2a<a href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9E%D1%80%D0%BD%D0%B8%D1%82% D0%BE %D0%BB%D0%BE%D0%B3%D0%B8%D1%8F\" target=\"_blank\" rel=\"noopener\">\u9e1f\u7c7b\u5b66\u5bb6<\/a>\uff0c\u4ed6\u4eec\u53d1\u73b0\u7279\u5b9a\u7269\u79cd\u7684\u9e1f\u7c7b\uff0c\u5b83\u4eec\u7684\u4efb\u52a1\u662f\u201c\u786e\u5b9a\u8fd9\u4e9b\u9e1f\u7c7b\u7684\u79cd\u7fa4\u89c4\u6a21\u3002\u4e24\u4f4d\u9e1f\u7c7b\u5b66\u5bb6\u5bf9\u53d1\u73b0\u7684\u9e1f\u7c7b\u8fdb\u884c\u6807\u8bb0\uff0c\u7136\u540e\u8ba1\u7b97\u5e38\u89c1\u9e1f\u7c7b\u7684\u6570\u91cf\uff0c\u4ee3\u5165\u6797\u80af\u6307\u6570\u516c\u5f0f\uff0c\u5373\u53ef\u5f97\u51fa\u5927\u81f4\u7684\u79cd\u7fa4\u89c4\u6a21\u3002<br \/>\u73b0\u5728\u5f00\u59cb\u7533\u8bf7\u2014\u2014\u65b9\u6cd5\u4e5f\u5f88\u7b80\u5355\uff0c\u6211\u4eec\u8fdb\u884c\u4e86\u4e24\u6b21 QA\uff0c\u4ed6\u4eec\u53d1\u73b0\u4e86\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684 bug\u3002\u5047\u8bbe\u4e00\u4f4d\u6d4b\u8bd5\u4eba\u5458\u53d1\u73b0\u4e86 10 \u4e2a\u9519\u8bef (<strong>E1<\/strong>)\uff0c\u7b2c\u4e8c\u4f4d\u6d4b\u8bd5\u4eba\u5458\u53d1\u73b0\u4e86 20 \u4e2a\u9519\u8bef (<strong>E2<\/strong>)\uff0c\u73b0\u5728\u6211\u4eec\u8ba1\u7b97\u9519\u8bef\u603b\u6570 &#8211; 3 (<strong>S<\/strong>)\uff0c\u7136\u540e\u4f7f\u7528\u516c\u5f0f\u6211\u4eec\u5f97\u5230<strong>\u6797\u80af\u6307\u6570<\/strong>\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1552\" src=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/Screenshot_20181116_191540.png\" alt=\"\" width=\"318\" height=\"79\" srcset=\"https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/Screenshot_20181116_191540.png 318w, https:\/\/demensdeum.com\/blog\/wp-content\/uploads\/2018\/11\/Screenshot_20181116_191540-300x75.png 300w\" sizes=\"auto, (max-width: 318px) 100vw, 318px\" \/><\/p>\n<p>\u8fd9\u662f\u5bf9\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u9519\u8bef\u6570\u91cf\u7684\u9884\u6d4b\uff0c\u5728\u7ed9\u51fa\u7684\u793a\u4f8b\u4e2d\u5927\u7ea6\u6709 66 \u4e2a\u9519\u8bef\u3002<\/p>\n<h3>Swift \u793a\u4f8b<\/h3>\n<p>\u6211\u5df2\u7ecf\u5b9e\u73b0\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u5e73\u53f0\u6765\u6d4b\u8bd5\u8be5\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5728\u8fd9\u91cc\u770b\u5230\u5b83\uff1a<br \/><a href=\"https:\/\/paiza.io\/projects\/AY_9T3oaN9a-xICAx_H4qw?language=swift\" target=\"_blank\" rel=\"noopener\">https:\/\/paiza.io\/projects\/AY_9T3oaN9a-xICAx_H4qw?language=swift<\/a><\/p>\n<p>\u53ef\u4ee5\u66f4\u6539\u7684\u53c2\u6570\uff1a<\/p>\n<p>\u8ba9 aliceErrorFindProbability = 20 &#8211; QA Alice \u53d1\u73b0\u7684\u9519\u8bef\u767e\u5206\u6bd4 (20%)<br \/>\u8ba9 bobErrorFindProbability = 60 &#8211; QA Bob \u53d1\u73b0\u7684\u9519\u8bef\u767e\u5206\u6bd4 (60%)<br \/>\u8ba9\u5b9e\u9645BugsCount = 200 &#8211;\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5230\u5e95\u6709\u591a\u5c11\u9519\u8bef<\/p>\n<p>\u5728\u4e0a\u6b21\u8fd0\u884c\u4e2d\u6211\u6536\u5230\u4e86\u4ee5\u4e0b\u6570\u636e\uff1a<br \/>\u4f30\u8ba1\u9519\u8bef\u6570\uff1a213<br \/>\u5b9e\u9645\u9519\u8bef\u6570\uff1a200<\/p>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6709 200 \u4e2a bug\uff0c\u6797\u80af\u6307\u6570\u7ed9\u51fa\u4e86\u9884\u6d4b\u201c200 \u4e2a bug\u201d\u3002 213\uff1a<br \/>\u201cAlice \u53d1\u73b0\u4e86 36 \u4e2a\u9519\u8bef\u201d<br \/>\u201c\u9c8d\u52c3\u53d1\u73b0\u4e86 89 \u4e2a\u9519\u8bef\u201d<br \/>&#8220;\u5e38\u89c1\u9519\u8bef\u6570\u91cf\uff1a15&#8221;<br \/>&#8212;<br \/>\u4f30\u8ba1\u9519\u8bef\u6570\uff1a213<br \/>\u5b9e\u9645\u9519\u8bef\u6570\uff1a200<\/p>\n<h3>\u5f31\u70b9<\/h3>\n<p>\u6b64\u65b9\u6cd5\u53ef\u7528\u4e8e\u8bc4\u4f30\u5e94\u7528\u7a0b\u5e8f\u5728\u5f00\u53d1\u7684\u5404\u4e2a\u9636\u6bb5\u7684\u9519\u8bef\u6570\u91cf\uff1b<em>\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u9519\u8bef\u6570\u91cf\u5e94\u8be5\u51cf\u5c11\u3002 <\/em>\u8be5\u65b9\u6cd5\u7684\u5f31\u70b9\u5305\u62ec\u4eba\u4e3a\u56e0\u7d20\uff0c\u56e0\u4e3a\u4e24\u4e2a\u6d4b\u8bd5\u4eba\u5458\u53d1\u73b0\u7684\u9519\u8bef\u6570\u91cf\u5e94\u8be5\u4e0d\u540c\uff0c\u5e76\u4e14\u53d1\u73b0\u4e86<strong><em>\u4e0d\u540c\u7684\u9519\u8bef<\/em><\/strong>\uff0c\u4f46\u662f<strong> <em>\u5fc5\u987b\u627e\u5230\u5e38\u89c1\u7684<\/em><\/strong>\uff0c\u5426\u5219\u8be5\u65b9\u6cd5\u5c06\u4e0d\u8d77\u4f5c\u7528\uff08\u96f6\u5e38\u89c1\u9519\u8bef&#8211;<em><strong>\u88ab\u96f6\u9664<\/strong><\/em>\uff09< br\/>\u6b64\u5916\uff0c\u8bf8\u5982<em><strong>\u5e38\u89c1\u9519\u8bef<\/strong><\/em>\u8fd9\u6837\u7684\u6982\u5ff5\u9700\u8981\u4e13\u5bb6\u5728\u573a\u624d\u80fd\u7406\u89e3\u5176<em><strong>\u5171\u6027\u3002<\/strong><\/em><\/p >\n<h3>\u6765\u6e90<\/h3>\n<p><a href=\"https:\/\/www.johndcook.com\/blog\/2010\/07\/13\/lincoln-index\/\" target=\"_blank\" rel=\"noopener\">\u8fd8\u6709\u591a\u5c11\u9519\u8bef\u9700\u8981\u67e5\u627e\uff1f &#8211;\u7ea6\u7ff0\u00b7\u5e93\u514b\u535a\u58eb\uff0c\u603b\u88c1<\/a><br \/><a href=\"http:\/\/bit-player.org\/2010\/the-thrill-of-the-chase\" target=\"_blank\" rel=\"noopener\">The thrill of the chase &#8211; Brian Hayes<\/a><\/p>\n<h3>\u6e90\u4ee3\u7801<\/h3>\n<p><a href=\"https:\/\/paiza.io\/projects\/AY_9T3oaN9a-xICAx_H4qw?language=swift\" target=\"_blank\" rel=\"noopener\">https:\/\/paiza.io\/projects\/AY_9T3oaN9a-xICAx_H4qw ?\u8bed\u8a00=swift<\/a><br \/><a href=\"https:\/\/gitlab.com\/demensdeum\/statistics\/tree\/master\/1_BugsCountEstimation\/src\" target=\"_blank\" rel=\"noopener\">https:\/\/gitlab.com\/demensdeum\/statistics\/tree\/master\/1_BugsCountEstimation\/src<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u9ed1\u5ba2\u65b0\u95fb\u4e0a\uff0c\u6211\u53d1\u73b0\u4e86\u4e00\u7bc7\u975e\u5e38\u6709\u8da3\u7684\u6587\u7ae0\uff0c\u5176\u4e2d\u4f5c\u8005\u5efa\u8bae\u4f7f\u7528Petersen-Lincoln \u65b9\u6cd5\uff0c\u751f\u7269\u5b66\u5bb6\u4f7f\u7528\u8be5\u65b9\u6cd5\u6765\u8ba1\u7b97\u9e1f\u7c7b\u3001\u7334\u5b50\u548c\u5176\u4ed6\u52a8\u7269\u7684\u6570\u91cf\uff0c\u4ee5\u4fbf\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d*\u51fb\u9f13*\u8ba1\u6570\u9519\u8bef\u3002 \u81ea\u7136\u6816\u606f\u5730\u7684\u866b\u5b50&#8211; \u5927\u811a\u602a\u7784\u51c6 \u4f5c\u8005\uff1a\u5fb7\u91cc\u514b\u00b7\u54c8\u7279\u83f2\u5c14\u5fb7 \u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u6211\u4eec\u53d6\u4e24\u4e2a\u9e1f\u7c7b\u5b66\u5bb6\uff0c\u4ed6\u4eec\u53d1\u73b0\u7279\u5b9a\u7269\u79cd\u7684\u9e1f\u7c7b\uff0c\u5b83\u4eec\u7684\u4efb\u52a1\u662f\u201c\u786e\u5b9a\u8fd9\u4e9b\u9e1f\u7c7b\u7684\u79cd\u7fa4\u89c4\u6a21\u3002\u4e24\u4f4d\u9e1f\u7c7b\u5b66\u5bb6\u5bf9\u53d1\u73b0\u7684\u9e1f\u7c7b\u8fdb\u884c\u6807\u8bb0\uff0c\u7136\u540e\u8ba1\u7b97\u5e38\u89c1\u9e1f\u7c7b\u7684\u6570\u91cf\uff0c\u4ee3\u5165\u6797\u80af\u6307\u6570\u516c\u5f0f\uff0c\u5373\u53ef\u5f97\u51fa\u5927\u81f4\u7684\u79cd\u7fa4\u89c4\u6a21\u3002\u73b0\u5728\u5f00\u59cb\u7533\u8bf7\u2014\u2014\u65b9\u6cd5\u4e5f\u5f88\u7b80\u5355\uff0c\u6211\u4eec\u8fdb\u884c\u4e86\u4e24\u6b21 QA\uff0c\u4ed6\u4eec\u53d1\u73b0\u4e86\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684 bug\u3002\u5047\u8bbe\u4e00\u4f4d\u6d4b\u8bd5\u4eba\u5458\u53d1\u73b0\u4e86 10 \u4e2a\u9519\u8bef (E1)\uff0c\u7b2c\u4e8c\u4f4d\u6d4b\u8bd5\u4eba\u5458\u53d1\u73b0\u4e86 20 \u4e2a\u9519\u8bef (E2)\uff0c\u73b0\u5728\u6211\u4eec\u8ba1\u7b97\u9519\u8bef\u603b\u6570 &#8211; 3 (S)\uff0c\u7136\u540e\u4f7f\u7528\u516c\u5f0f\u6211\u4eec\u5f97\u5230\u6797\u80af\u6307\u6570\uff1a \u8fd9\u662f\u5bf9\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u9519\u8bef\u6570\u91cf\u7684\u9884\u6d4b\uff0c\u5728\u7ed9\u51fa\u7684\u793a\u4f8b\u4e2d\u5927\u7ea6\u6709 66 \u4e2a\u9519\u8bef\u3002 Swift \u793a\u4f8b \u6211\u5df2\u7ecf\u5b9e\u73b0\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u5e73\u53f0\u6765\u6d4b\u8bd5\u8be5\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5728\u8fd9\u91cc\u770b\u5230\u5b83\uff1ahttps:\/\/paiza.io\/projects\/AY_9T3oaN9a-xICAx_H4qw?language=swift \u53ef\u4ee5\u66f4\u6539\u7684\u53c2\u6570\uff1a \u8ba9 aliceErrorFindProbability = 20 &#8211; QA Alice \u53d1\u73b0\u7684\u9519\u8bef\u767e\u5206\u6bd4 (20%)\u8ba9 bobErrorFindProbability = 60 &#8211; QA Bob \u53d1\u73b0\u7684\u9519\u8bef\u767e\u5206\u6bd4 (60%)\u8ba9\u5b9e\u9645BugsCount = 200 &#8211;\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5230\u5e95\u6709\u591a\u5c11\u9519\u8bef \u5728\u4e0a\u6b21\u8fd0\u884c\u4e2d\u6211\u6536\u5230\u4e86\u4ee5\u4e0b\u6570\u636e\uff1a\u4f30\u8ba1\u9519\u8bef\u6570\uff1a213\u5b9e\u9645\u9519\u8bef\u6570\uff1a200 \u4e5f\u5c31\u662f\u8bf4\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6709 200 \u4e2a bug\uff0c\u6797\u80af\u6307\u6570\u7ed9\u51fa\u4e86\u9884\u6d4b\u201c200 \u4e2a bug\u201d\u3002 213\uff1a\u201cAlice \u53d1\u73b0\u4e86 36 \u4e2a\u9519\u8bef\u201d\u201c\u9c8d\u52c3\u53d1\u73b0\u4e86<a class=\"more-link\" href=\"https:\/\/demensdeum.com\/blog\/zh\/2018\/11\/16\/bugs-count-estimation\/\">Continue reading <span class=\"screen-reader-text\">&#8220;\u4f60\u90a3\u91cc\u6709\u591a\u5c11\u9519\u8bef\uff1f&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[61],"tags":[],"class_list":["post-1545","post","type-post","status-publish","format-standard","hentry","category-techie","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"zh","enabled_languages":["en","ru","zh","de","fr","ja","pt","hi"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"zh":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false}}},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/1545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/comments?post=1545"}],"version-history":[{"count":22,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/1545\/revisions"}],"predecessor-version":[{"id":3969,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/posts\/1545\/revisions\/3969"}],"wp:attachment":[{"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/media?parent=1545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/categories?post=1545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demensdeum.com\/blog\/zh\/wp-json\/wp\/v2\/tags?post=1545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}