

{"id":790097,"date":"2023-01-22T11:00:00","date_gmt":"2023-01-22T18:00:00","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/veri-dogrulama-nedir-onemi-turleri-artilari-ve-eksileri\/"},"modified":"2023-05-05T18:27:26","modified_gmt":"2023-05-05T18:27:26","slug":"veri-dogrulama-nedir-onemi-turleri-artilari-ve-eksileri","status":"publish","type":"post","link":"https:\/\/www.questionpro.com\/blog\/tr\/veri-dogrulama-nedir-onemi-turleri-artilari-ve-eksileri\/","title":{"rendered":"Veri Do\u011frulama: Nedir, \u00d6nemi, T\u00fcrleri, Art\u0131lar\u0131 ve Eksileri"},"content":{"rendered":"\n<p>\u0130\u015fletmeler \u00f6nemli stratejik kararlar almak i\u00e7in y\u00fcksek kaliteli verilere g\u00fcvenir. Son kullan\u0131c\u0131lar, verilerin yanl\u0131\u015f ve eksik olmas\u0131 durumunda verilere olan g\u00fcvenlerini kaybederler ve bu da verilerin kullan\u0131m\u0131n\u0131 k\u0131s\u0131tlar.<\/p>\n\n<p>\u0130\u015fletmeler, do\u011fru ve eksiksiz olmas\u0131n\u0131 sa\u011flayarak veri kalitelerini art\u0131rmak i\u00e7in veri do\u011frulamay\u0131 kullan\u0131r. Veri do\u011frulama, veri ekiplerinin verilerinin kalitesini y\u00fcksek tutmak i\u00e7in kulland\u0131klar\u0131 y\u00f6ntemler ve s\u00fcre\u00e7ler b\u00fct\u00fcn\u00fcd\u00fcr.<\/p>\n\n<p>\u015eimdi, i\u015fletmelerin ve veri ekiplerinin verilerini neden do\u011frulamalar\u0131 gerekti\u011fini tart\u0131\u015fal\u0131m. Ayr\u0131ca t\u00fcrleri, art\u0131lar\u0131 ve eksileri hakk\u0131nda da konu\u015faca\u011f\u0131z.<\/p>\n\n<h2 class=\"wp-block-heading\">Veri do\u011frulama nedir?<\/h2>\n\n<p>Veri do\u011frulama, gereksinimleri kar\u015f\u0131layan verilerin \u00f6nceden olu\u015fturulmu\u015f veya tan\u0131mlanm\u0131\u015f bir dizi kuralla kar\u015f\u0131la\u015ft\u0131r\u0131larak kontrol edilmesi s\u00fcrecidir. Bu prosed\u00fcr, kontrol rutinleri olarak bilinen bir dizi kontrol\u00fcn ger\u00e7ekle\u015ftirilmesini gerektirir. Basit kontroller do\u011fum tarihinin yaln\u0131zca rakamlardan olu\u015fmas\u0131n\u0131 sa\u011flarken, daha karma\u015f\u0131k kontroller yap\u0131land\u0131r\u0131lm\u0131\u015f ko\u015fullu kontrolleri i\u00e7erir.<\/p>\n\n<p>Verilerin do\u011frulanmas\u0131, verilerin temiz, do\u011fru ve kullan\u0131labilir olmas\u0131n\u0131 sa\u011flar. Yaln\u0131zca do\u011frulanm\u0131\u015f veriler i\u00e7e aktar\u0131lmal\u0131, kaydedilmeli veya kullan\u0131lmal\u0131d\u0131r; aksi takdirde programlar \u00e7al\u0131\u015fmay\u0131 durdurabilir, sonu\u00e7lar hatal\u0131 olabilir (\u00f6rne\u011fin, modeller k\u00f6t\u00fc veriler \u00fczerinde e\u011fitilirse) veya di\u011fer potansiyel olarak feci sorunlar ortaya \u00e7\u0131kabilir.<\/p>\n\n<h2 class=\"wp-block-heading\">Veri do\u011frulaman\u0131n \u00f6nemi<\/h2>\n\n<p>Veri do\u011frulama, hatalar\u0131 daha h\u0131zl\u0131 bulman\u0131za yard\u0131mc\u0131 olabilir, b\u00f6ylece onlar\u0131 bulmak i\u00e7in kedi-fare oyunu oynamak zorunda kalmazs\u0131n\u0131z. Ayr\u0131ca daha sonra k\u00f6t\u00fc verileri temizlerken size zaman kazand\u0131rabilir. Bunun yan\u0131 s\u0131ra, verilerin do\u011frulanmas\u0131 pek \u00e7ok a\u00e7\u0131dan \u00e7ok \u00f6nemlidir. Bu b\u00f6l\u00fcmde, bunun en \u00f6nemli y\u00f6nlerinden baz\u0131lar\u0131n\u0131 tart\u0131\u015faca\u011f\u0131z:<\/p>\n\n<ul>\n<li>Analistler, verilerini do\u011frulayarak ambarlar\u0131ndaki hatal\u0131 veri miktar\u0131n\u0131 s\u0131n\u0131rlayabilirler. S\u00fcre\u00e7ten en iyi \u015fekilde yararlanmak i\u00e7in kurulu\u015flar verileri do\u011frulamak \u00fczere birlikte \u00e7al\u0131\u015fmal\u0131d\u0131r.<\/li>\n\n\n\n<li>Verilerin do\u011frulu\u011funu, netli\u011fini ve \u00f6zg\u00fcnl\u00fc\u011f\u00fcn\u00fc do\u011frulamak, herhangi bir proje sorununu gidermek i\u00e7in gereklidir. Verileri do\u011frulamadan yanl\u0131\u015f, temsili olmayan verilere dayal\u0131 kararlar alma riskiyle kar\u015f\u0131 kar\u015f\u0131ya kal\u0131rs\u0131n\u0131z.<\/li>\n\n\n\n<li>Veri Do\u011frulama, ETL (Extraction, Translation, and Load) s\u00fcrecinde ve veri ambar\u0131nda kullan\u0131l\u0131r. Bir analistin veri \u00e7at\u0131\u015fmalar\u0131n\u0131n kapsam\u0131n\u0131 daha iyi anlamas\u0131n\u0131 sa\u011flar.<\/li>\n\n\n\n<li>Veri modelinin test edilmesi de \u00f6nemlidir. Veri modeli do\u011fru bir \u015fekilde kurulur ve yap\u0131land\u0131r\u0131l\u0131rsa, veri dosyalar\u0131n\u0131 farkl\u0131 programlarda ve uygulamalarda kullanabilirsiniz.<\/li>\n\n\n\n<li>Verilerin do\u011frulanmas\u0131, MS Excel gibi tek bir uygulamada bulunan veriler veya tek bir veri deposunda bir araya getirilmi\u015f basit veriler dahil olmak \u00fczere herhangi bir veri \u00fczerinde de ger\u00e7ekle\u015ftirilebilir.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Veri do\u011frulama t\u00fcrleri<\/h2>\n\n<p>Verilerin do\u011frulanmas\u0131 bir\u00e7ok \u015fekilde ger\u00e7ekle\u015fir. Veri Do\u011frulama i\u015flemlerinin \u00e7o\u011fu, verileri veritaban\u0131nda depolamadan \u00f6nce bu kontrollerden bir veya daha fazlas\u0131n\u0131 ger\u00e7ekle\u015ftirir. Bunlar baz\u0131 yayg\u0131n veri do\u011frulama kontrol\u00fc t\u00fcrleridir:<\/p>\n\n<ol>\n<li>Veri t\u00fcr\u00fc kontrol\u00fc<\/li>\n<\/ol>\n\n<p>Veri t\u00fcr\u00fc kontrol\u00fc, girilen veri t\u00fcr\u00fcn\u00fcn do\u011fru oldu\u011fundan emin olunmas\u0131n\u0131 sa\u011flar. \u00d6rne\u011fin, bir alan yaln\u0131zca say\u0131sal verileri kabul edebilir. Bu durumda, sistem harfler veya \u00f6zel semboller gibi di\u011fer karakterleri i\u00e7eren t\u00fcm verileri reddetmelidir.<\/p>\n\n<ol start=\"2\">\n<li>Kod kontrol\u00fc<\/li>\n<\/ol>\n\n<p>Kod denetimi, bir alan\u0131n de\u011ferinin ge\u00e7erli bir listeden gelmesini veya do\u011fru bi\u00e7imlendirilmesini sa\u011flar. \u00d6rne\u011fin, bir posta kodunu do\u011fru kodlar\u0131n bulundu\u011fu bir listeyle kar\u015f\u0131la\u015ft\u0131rd\u0131\u011f\u0131n\u0131zda do\u011fru olup olmad\u0131\u011f\u0131n\u0131 anlamak daha kolayd\u0131r.<\/p>\n\n<ol start=\"3\">\n<li>Menzil kontrol\u00fc<\/li>\n<\/ol>\n\n<p>Aral\u0131k kontrolleri, belirli bir aral\u0131\u011fa girmesi gereken verileri do\u011frulamak i\u00e7in kullan\u0131l\u0131r. Makul de\u011ferler i\u00e7in tan\u0131mlanm\u0131\u015f bir alt ve \u00fcst s\u0131n\u0131r vard\u0131r. \u00d6rne\u011fin, bir ilkokul \u00f6\u011frencisi b\u00fcy\u00fck olas\u0131l\u0131kla 10 ila 14 ya\u015flar\u0131 aras\u0131ndad\u0131r. Bilgisayar sadece 10&#8217;dan 14&#8217;e kadar olan say\u0131lar\u0131 alacak \u015fekilde ayarlanabilir.<\/p>\n\n<ol start=\"4\">\n<li>Format kontrol\u00fc<\/li>\n<\/ol>\n\n<p>Bir\u00e7ok veri t\u00fcr\u00fc \u00f6nceden belirlenmi\u015f bir format\u0131 takip eder. YYYY-MM-DD veya DD-MM-YYYY gibi sabit bir formatta depolanan tarih s\u00fctunlar\u0131 yayg\u0131n bir \u00f6rnektir. Tarihlerin do\u011fru formatta olup olmad\u0131\u011f\u0131n\u0131 kontrol eden bir veri do\u011frulama s\u00fcreci, verilerin ve zaman\u0131n tutarl\u0131 kalmas\u0131na yard\u0131mc\u0131 olur.<\/p>\n\n<ol start=\"5\">\n<li>Tutarl\u0131l\u0131k kontrol\u00fc<\/li>\n<\/ol>\n\n<p>Tutarl\u0131l\u0131k kontrol\u00fc, girilen verilerin mant\u0131kl\u0131 oldu\u011fundan emin olmak i\u00e7in yap\u0131lan bir t\u00fcr mant\u0131ksal kontrold\u00fcr. Buna bir \u00f6rnek, teslimat tarihinin sevkiyat tarihinden sonra olmas\u0131n\u0131 sa\u011flamakt\u0131r.<\/p>\n\n<ol start=\"6\">\n<li>Benzersizlik kontrol\u00fc<\/li>\n<\/ol>\n\n<p>E-posta adresleri ve kimlikler, do\u011fal olarak benzersiz olan iki veri \u00f6rne\u011fidir. Bu alanlar\u0131n bir veritaban\u0131nda yaln\u0131zca bir giri\u015fi olmal\u0131d\u0131r. Benzersizlik kontrol\u00fc, bir \u00f6\u011fenin bir veritaban\u0131na birden fazla kez yerle\u015ftirilmemesini sa\u011flar.<\/p>\n\n<h2 class=\"wp-block-heading\">Veri do\u011frulaman\u0131n art\u0131lar\u0131 ve eksileri<\/h2>\n\n<p>Do\u011frulama veri testi ile i\u015fletmeler veritabanlar\u0131n\u0131n do\u011fru ve ge\u00e7erli oldu\u011funu kontrol edebilir ve daha iyi kararlar alabilir. \u0130\u015fletmeniz i\u00e7in verileri do\u011frulamaya karar veriyorsan\u0131z, i\u015fte her birinin art\u0131lar\u0131 ve eksileri:<\/p>\n\n<ul>\n<li>Art\u0131lar\u0131<\/li>\n<\/ul>\n\n<h4 class=\"wp-block-heading\">Verilerin do\u011frulu\u011funu kontrol edin<\/h4>\n\n<p>Verilerin do\u011frulanmas\u0131, veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flamak i\u00e7in a\u011f\u0131r i\u015flerin \u00e7o\u011funu yapar. Do\u011frulama, verilerinizi de\u011fi\u015ftirmez veya iyile\u015ftirmez, ancak do\u011fru \u015fekilde ayarland\u0131\u011f\u0131 takdirde amac\u0131na hizmet etmesini sa\u011flar.<\/p>\n\n<h4 class=\"wp-block-heading\">\u00c7oklu Veri Kaynaklar\u0131n\u0131 Y\u00f6netmeye Yard\u0131mc\u0131 Olur<\/h4>\n\n<p>Veri kaynaklar\u0131n\u0131n say\u0131s\u0131 artt\u0131k\u00e7a veri do\u011frulama giderek daha \u00f6nemli hale gelmektedir. Farkl\u0131 kanallardan m\u00fc\u015fteri verilerini i\u00e7e aktard\u0131\u011f\u0131n\u0131z\u0131 varsayal\u0131m; t\u00fcm bu verileri ayn\u0131 izleme stratejisine g\u00f6re e\u015f zamanl\u0131 olarak do\u011frulaman\u0131z gerekecektir. Aksi takdirde, veri k\u00fcmeleri aras\u0131nda \u00e7ak\u0131\u015fmalar ve hatalar ortaya \u00e7\u0131kabilir.<\/p>\n\n<h4 class=\"wp-block-heading\">Zaman Kazan\u0131n<\/h4>\n\n<p>Verileri do\u011frulamak zaman al\u0131r, ancak bir kez yap\u0131ld\u0131\u011f\u0131nda, girdileriniz veya gereksinimleriniz de\u011fi\u015fene kadar hi\u00e7bir \u015feyi de\u011fi\u015ftirmeniz gerekmez.<\/p>\n\n<ul>\n<li>Eksiler<\/li>\n<\/ul>\n\n<h4 class=\"wp-block-heading\">Karma\u015f\u0131kl\u0131k<\/h4>\n\n<p>Do\u011frulama, birka\u00e7 karma\u015f\u0131k veri kayna\u011f\u0131 ile zordur. Segment gibi bir\u00e7ok kurumsal platform, bu durumda yard\u0131mc\u0131 olabilecek b\u00fcy\u00fck \u00e7ok kaynakl\u0131 uygulamalar i\u00e7in g\u00fc\u00e7l\u00fc do\u011frulama ara\u00e7lar\u0131 i\u00e7erir.<\/p>\n\n<h4 class=\"wp-block-heading\">Veri Do\u011frulama Hatalar\u0131<\/h4>\n\n<p>Bu do\u011frulama hatalara yol a\u00e7abilir; t\u00fcm do\u011frulama yaz\u0131l\u0131mlar\u0131 m\u00fckemmel de\u011fildir. Neredeyse kesin olarak, d\u00fczeltilmesi gereken do\u011frulama hatalar\u0131 olacakt\u0131r.<\/p>\n\n<h4 class=\"wp-block-heading\">De\u011fi\u015fen \u0130htiya\u00e7lar<\/h4>\n\n<p>Verilerin do\u011frulanmas\u0131yla ilgili en b\u00fcy\u00fck sorunlardan biri, belirli de\u011fi\u015fiklikler yap\u0131ld\u0131ktan sonra yeniden do\u011frulanmas\u0131 gerekmesidir. Veri t\u00fcrleri ve girdiler sa\u011fland\u0131k\u00e7a \u015fema modelleri ve e\u015fleme belgeleri g\u00fcncellenmelidir.<\/p>\n\n<h2 class=\"wp-block-heading\">Sonu\u00e7<\/h2>\n\n<p>Yukar\u0131daki konu\u015fmadan veri do\u011frulama, \u00f6nemi, t\u00fcrleri, art\u0131lar\u0131 ve eksileri hakk\u0131nda bilgi edindik. Verilerin do\u011frulanmas\u0131, verilerin y\u00f6netilmesinde \u00f6nemli bir ad\u0131md\u0131r ve genellikle veri temizli\u011finin bir par\u00e7as\u0131 olarak yap\u0131l\u0131r. Verileri do\u011frulaman\u0131n amac\u0131, verilerin y\u00fcksek kalitede olmas\u0131n\u0131 ve g\u00fcvenle kullan\u0131labilmesini sa\u011flamakt\u0131r.<\/p>\n\n<p>QuestionPro, veri do\u011frulama s\u00fcrecinizde size rehberlik edebilir. QuestionPro, anket sorular\u0131 i\u00e7in veri t\u00fcrlerini, aral\u0131klar\u0131, kal\u0131plar\u0131 ve zorunlu alanlar\u0131 ayarlamak da dahil olmak \u00fczere \u00e7e\u015fitli veri do\u011frulama \u00f6zellikleri sunar.<\/p>\n\n<p>Bu \u00f6zellikler, anketler yoluyla elde edilen verilerin do\u011fru, kesin ve tutarl\u0131 olmas\u0131n\u0131 ve karar verme ve analiz i\u00e7in g\u00fcvenilebilir olmas\u0131n\u0131 sa\u011flamada kullan\u0131c\u0131lara yard\u0131mc\u0131 olur. Daha fazla bilgi edinmek i\u00e7in QuestionPro ile ileti\u015fime ge\u00e7in veya \u00fccretsiz bir demo isteyin.<\/p>\n\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.questionpro.com\/research-edition-survey-software\/\" target=\"_blank\" rel=\"noopener\">\n  <button>DAHA FAZLA BI\u0307LGI\u0307 EDI\u0307NI\u0307N<\/button>\n<\/a>       <a href=\"https:\/\/www.questionpro.com\/a\/showEntry.do?classID=1053&amp;sourceRef=blog\" target=\"_blank\" rel=\"noopener\">\n  <button>\u00dcCRETS\u0130Z DENEME<\/button>\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130\u015fletmeler \u00f6nemli stratejik kararlar almak i\u00e7in y\u00fcksek kaliteli verilere g\u00fcvenir. Son kullan\u0131c\u0131lar, verilerin yanl\u0131\u015f ve eksik olmas\u0131 durumunda verilere olan [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":775004,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1114],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Veri Do\u011frulama: Nedir, \u00d6nemi, T\u00fcrleri, Art\u0131lar\u0131 ve Eksileri<\/title>\n<meta name=\"description\" content=\"Veri do\u011frulaman\u0131n bir\u00e7ok \u015fekli vard\u0131r ve veri tutarl\u0131l\u0131\u011f\u0131 ve b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flamak i\u00e7in \u00e7ok \u00f6nemlidir. 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