COBOL’la Konu\u015fan Bir Bankac\u0131l\u0131k Sistemi: Patronun Fark Etmedi\u011fi S\u0131rr\u0131m<\/p>\n
Eski, karma\u015f\u0131k sistemlerle bo\u011fu\u015furken yeni, modern \u00e7\u00f6z\u00fcmler geli\u015ftirmenin heyecan\u0131n\u0131 ve zorluklar\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcn. Bu makalede, bir bankac\u0131l\u0131k sistemine COBOL kullanarak gizlice nas\u0131l yeni \u00f6zellikler ekledi\u011fimi ve patronumun bunu nas\u0131l fark etmedi\u011fini ad\u0131m ad\u0131m a\u00e7\u0131klayaca\u011f\u0131m. Bu hikaye, eski sistemlerin modern d\u00fcnyaya nas\u0131l entegre edilebilece\u011fini, riskleri ve ba\u015far\u0131 i\u00e7in gereken stratejileri vurgulayacakt\u0131r. Ayn\u0131 zamanda COBOL’un g\u00fcc\u00fcn\u00fc ve gelecekteki rol\u00fcn\u00fc tart\u0131\u015faca\u011f\u0131z. Haz\u0131rsan\u0131z, ba\u015flayal\u0131m!<\/p>\n
Muhtemelen \u00e7o\u011fu insan i\u00e7in COBOL, ge\u00e7mi\u015fin tozlu bir kal\u0131nt\u0131s\u0131d\u0131r. Ancak ger\u00e7e\u011fi s\u00f6ylemek gerekirse, d\u00fcnyan\u0131n bir\u00e7ok b\u00fcy\u00fck finans kurulu\u015funun omurgas\u0131n\u0131 olu\u015fturan say\u0131s\u0131z kritik sistem hala COBOL ile \u00e7al\u0131\u015f\u0131yor. COBOL, “Common Business-Oriented Language” (Ortak \u0130\u015f Odakl\u0131 Dil) anlam\u0131na gelir ve i\u015f uygulamalar\u0131 i\u00e7in tasarlanm\u0131\u015ft\u0131r. G\u00fc\u00e7l\u00fc noktalar\u0131, veri i\u015flemedeki verimlili\u011fi ve sa\u011flaml\u0131\u011f\u0131d\u0131r. Y\u00fcksek d\u00fczeyde yap\u0131land\u0131r\u0131lm\u0131\u015f olmas\u0131, b\u00fcy\u00fck veri k\u00fcmelerini i\u015flemekte olduk\u00e7a yetenekli olmas\u0131n\u0131 sa\u011flar. Ancak, \u00f6\u011frenme e\u011frisi olduk\u00e7a diktir ve modern dillerdeki esnekli\u011fe sahip de\u011fildir. Bu nedenle, bir\u00e7ok geli\u015ftirici COBOL’dan uzak durur. Ancak, bu eski dilin potansiyelini anlamak, mevcut sistemlere yeni \u00f6zellikler eklemek i\u00e7in harika bir f\u0131rsat sunabilir.<\/p>\n
COBOL’un yap\u0131s\u0131, veri y\u00f6netimi ve i\u015f mant\u0131\u011f\u0131 a\u00e7\u0131s\u0131ndan olduk\u00e7a farkl\u0131d\u0131r. Modern dillerdeki nesne y\u00f6nelimli programlama kavramlar\u0131 burada pek yoktur. Prosed\u00fcrel programlama yakla\u015f\u0131m\u0131, ad\u0131m ad\u0131m i\u015fleyi\u015fe odaklan\u0131r. Bu, karma\u015f\u0131k i\u015flemleri anlamak ve hata ay\u0131klamak i\u00e7in dikkatli bir yakla\u015f\u0131m gerektirir. Ancak, sa\u011flam yap\u0131s\u0131 sayesinde, uzun s\u00fcreli \u00e7al\u0131\u015fabilirli\u011fi ve g\u00fcvenilirli\u011fiyle \u00f6ne \u00e7\u0131kar. Bu nedenle, mevcut COBOL sistemlerine dokunmak yerine, yeni bir sistem geli\u015ftirmek yerine, varolan\u0131 geli\u015ftirmek, hem maliyet hem de risk a\u00e7\u0131s\u0131ndan \u00e7ok daha az maliyetli bir se\u00e7enek olabilir.<\/p>\n
\u0130lk ad\u0131m, mevcut COBOL sistemini kapsaml\u0131 bir \u015fekilde analiz etmektir. Bu, sistemin mimarisini, veri yap\u0131lar\u0131n\u0131 ve i\u015flevlerini anlamak anlam\u0131na gelir. Mevcut dok\u00fcmantasyonlar\u0131 incelemek, sistemin nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlamak i\u00e7in \u00f6nemli bir ad\u0131md\u0131r. Ancak, \u00e7o\u011fu zaman, eski sistemlerin dok\u00fcmantasyonu eksik veya g\u00fcncel de\u011fildir. Bu durumda, sistemin kaynak kodunu inceleyerek, i\u015fleyi\u015fini anlamaya \u00e7al\u0131\u015fman\u0131z gerekecektir. Bu s\u00fcre\u00e7 zaman al\u0131c\u0131 ve zorlay\u0131c\u0131 olabilir, ancak sistemin i\u00e7 i\u015fleyi\u015fini anlamak i\u00e7in gereklidir. Sistemin farkl\u0131 mod\u00fcllerinin nas\u0131l etkile\u015fimde oldu\u011funu anlamak \u00f6zellikle \u00f6nemlidir. Bunun i\u00e7in, sistemin farkl\u0131 b\u00f6l\u00fcmlerine ait kod par\u00e7alar\u0131n\u0131 inceleyerek, veri ak\u0131\u015f\u0131n\u0131 izleyebilirsiniz. Bu a\u015famada, deneyimli COBOL geli\u015ftiricilerinden yard\u0131m almak faydal\u0131 olabilir.<\/p>\n
Ayr\u0131ca, sistemin performans\u0131n\u0131 analiz etmek de \u00f6nemlidir. Bu, sistemin ne kadar h\u0131zl\u0131 \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve hangi kaynaklar\u0131 kulland\u0131\u011f\u0131n\u0131 anlamak i\u00e7in yap\u0131l\u0131r. Performans analiz sonu\u00e7lar\u0131na g\u00f6re, sistemde iyile\u015ftirme yap\u0131labilecek noktalar\u0131 belirleyebilirsiniz. Sistemin g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 da analiz etmeniz ve gerekli g\u00fcvenlik \u00f6nlemlerini alman\u0131z gerekmektedir. Eski sistemler, g\u00fcvenlik a\u00e7\u0131s\u0131ndan daha savunmas\u0131z olabilir. Bu nedenle, sistemin g\u00fcncel g\u00fcvenlik standartlar\u0131n\u0131 kar\u015f\u0131lad\u0131\u011f\u0131ndan emin olmal\u0131s\u0131n\u0131z.<\/p>\n
Mevcut sisteme yeni bir \u00f6zellik eklemek i\u00e7in, \u00f6ncelikle bu \u00f6zelli\u011fin sistemin di\u011fer b\u00f6l\u00fcmleriyle nas\u0131l etkile\u015fimde olaca\u011f\u0131n\u0131 belirlemeniz gerekir. Yeni \u00f6zelli\u011fin gerektirdi\u011fi veri yap\u0131lar\u0131 ve i\u015flevleri tan\u0131mlaman\u0131z ve bunlar\u0131 mevcut sisteme entegre etmeniz gerekir. Bu a\u015famada, COBOL dilinin \u00f6zelliklerini ve s\u0131n\u0131rlamalar\u0131n\u0131 iyi bilmeniz \u00f6nemlidir. Yeni kodu yazarken, okunabilirlik ve bak\u0131m kolayl\u0131\u011f\u0131na dikkat etmelisiniz. Kodunuzu d\u00fczenli bir \u015fekilde yazmal\u0131 ve a\u00e7\u0131klay\u0131c\u0131 yorumlar eklemelisiniz. Yeni kodu test etmek ve hata ay\u0131klamak da \u00f6nemlidir. Testler, yeni \u00f6zelli\u011fin beklendi\u011fi gibi \u00e7al\u0131\u015ft\u0131\u011f\u0131ndan emin olmak i\u00e7in yap\u0131l\u0131r. Hata ay\u0131klama, kodda bulunan hatalar\u0131 tespit etmek ve d\u00fczeltmek i\u00e7in kullan\u0131l\u0131r.<\/p>\n
\u00d6rne\u011fin, varolan bir banka hesap y\u00f6netim sistemine, kullan\u0131c\u0131lara hesap \u00f6zetlerini e-posta ile g\u00f6nderme \u00f6zelli\u011fi eklemek istedi\u011finizi varsayal\u0131m. Bu \u00f6zellik, mevcut veritaban\u0131ndan hesap bilgilerini okumak, e-posta g\u00f6nderme i\u015flemlerini yapmak ve e-posta g\u00f6nderimini do\u011frulamak gibi i\u015flemleri gerektirir. Bu i\u015flemleri ger\u00e7ekle\u015ftirmek i\u00e7in, COBOL’da gerekli kodlar\u0131 yazman\u0131z ve bunlar\u0131 mevcut sisteme entegre etmeniz gerekir. Bu i\u015flem s\u0131ras\u0131nda, e-posta g\u00f6nderimini g\u00fcvenli bir \u015fekilde ger\u00e7ekle\u015ftirmek i\u00e7in gereken g\u00fcvenlik \u00f6nlemlerini de alman\u0131z \u00f6nemlidir.<\/p>\n
IDENTIFICATION DIVISION.\n PROGRAM-ID. SEND-STATEMENT.\n DATA DIVISION.\n WORKING-STORAGE SECTION.\n 01 ACCOUNT-DATA.\n 05 ACCOUNT-NUMBER PIC 9(10).\n 05 CUSTOMER-NAME PIC X(50).\n 05 ACCOUNT-BALANCE PIC 9(10)V99.\n 01 EMAIL-DATA.\n 05 EMAIL-ADDRESS PIC X(100).\n PROCEDURE DIVISION.\n ... (Hesap bilgilerini veritaban\u0131ndan okuma i\u015flemleri) ...\n ... (E-posta g\u00f6nderim i\u015flemleri) ...\n ... (G\u00f6nderim durumunu kontrol etme) ...\n STOP RUN.<\/pre>\n<\/code><\/p>\n
Performans Optimizasyonu ve G\u00fcvenlik<\/h2>\nPerformans\u0131 Nas\u0131l Art\u0131rabilirim?<\/h3>\n
COBOL'da yaz\u0131lan eski sistemler, performans sorunlar\u0131 ya\u015fayabilir. Performans\u0131 art\u0131rmak i\u00e7in \u00e7e\u015fitli teknikler kullan\u0131labilir. \u00d6rne\u011fin, veritaban\u0131 sorgular\u0131n\u0131 optimize etmek, gereksiz veri i\u015flemlerini azaltmak ve kodun verimlili\u011fini art\u0131rmak performans\u0131 olumlu y\u00f6nde etkiler. Bunun yan\u0131nda, paralel i\u015flem teknikleri kullan\u0131labilir. COBOL'da paralel i\u015flem, birden fazla i\u015flemcinin ayn\u0131 anda \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar. Bu, i\u015flem s\u00fcresini \u00f6nemli \u00f6l\u00e7\u00fcde azaltabilir. Ancak, paralel i\u015flem kullan\u0131rken, dikkatli olmak \u00f6nemlidir. Yanl\u0131\u015f kullan\u0131ld\u0131\u011f\u0131nda, performans\u0131 d\u00fc\u015f\u00fcrebilir veya sistemde hatalara yol a\u00e7abilir. Ayr\u0131ca, sistemin bellek kullan\u0131m\u0131 da optimize edilebilir. Sistemin gereksiz yere bellek kullanmas\u0131n\u0131 \u00f6nlemek performans\u0131 art\u0131racakt\u0131r. Bunun i\u00e7in, verilerin s\u0131k\u0131\u015ft\u0131r\u0131lmas\u0131, gereksiz de\u011fi\u015fkenlerin kald\u0131r\u0131lmas\u0131 ve bellek y\u00f6netimini iyile\u015ftirme teknikleri kullan\u0131labilir. Bu tekniklerin etkilerini \u00f6l\u00e7mek i\u00e7in performans testleri ger\u00e7ekle\u015ftirilmeli ve sonu\u00e7lar d\u00fczenli olarak takip edilmelidir.<\/p>\n
Sistem G\u00fcvenli\u011fini Nas\u0131l Sa\u011flayabilirim?<\/h3>\n
Dikkat: Eski sistemlerde g\u00fcvenlik a\u00e7\u0131klar\u0131 bulunabilir. Yeni \u00f6zellikler eklerken, sistemin g\u00fcvenli\u011fini sa\u011flamak i\u00e7in gereken \u00f6nlemleri almal\u0131s\u0131n\u0131z. G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 tespit etmek ve ortadan kald\u0131rmak i\u00e7in, sistemi d\u00fczenli olarak g\u00fcvenlik denetimlerinden ge\u00e7irmelisiniz. Ayr\u0131ca, g\u00fcvenlik duvarlar\u0131 ve di\u011fer g\u00fcvenlik yaz\u0131l\u0131mlar\u0131 kullanarak, sistemi yetkisiz eri\u015fimlere kar\u015f\u0131 koruyabilirsiniz. Veri \u015fifreleme, verilerin yetkisiz ki\u015filerin eline ge\u00e7mesini \u00f6nlemek i\u00e7in \u00f6nemli bir g\u00fcvenlik \u00f6nlemidir. Veri \u015fifreleme, verileri \u015fifreleyerek, yaln\u0131zca yetkili ki\u015filerin bu verilere eri\u015febilmesini sa\u011flar. Veri \u015fifreleme i\u00e7in, g\u00fcvenilir ve g\u00fc\u00e7l\u00fc \u015fifreleme algoritmalar\u0131 kullan\u0131lmal\u0131d\u0131r. Yeni \u00f6zellik eklerken, giri\u015f do\u011frulama i\u015flemlerinin g\u00fcvenli oldu\u011fundan emin olun. Zay\u0131f giri\u015f do\u011frulama i\u015flemleri, sistemin g\u00fcvenli\u011fini tehlikeye atabilir. G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 \u00f6nlemek i\u00e7in, g\u00fc\u00e7l\u00fc parolalar kullan\u0131lmal\u0131 ve d\u00fczenli olarak de\u011fi\u015ftirilmelidir. G\u00fcvenli kodlama teknikleri kullanarak, sistemin g\u00fcvenli\u011fini art\u0131rabilirsiniz.<\/p>\n
\u00d6\u011frenme Yol Haritas\u0131<\/h2>\nYeni Ba\u015flayanlar \u0130\u00e7in:<\/h3>\n
COBOL'un temellerini \u00f6\u011frenmekle ba\u015flay\u0131n. Bir\u00e7ok online kaynak ve e\u011fitim mevcuttur. Temel s\u00f6zdizimini, veri yap\u0131lar\u0131 ve kontrol yap\u0131mlar\u0131n\u0131 anlay\u0131n. Basit COBOL programlar\u0131 yazmaya \u00e7al\u0131\u015farak pratik yap\u0131n. Mevcut COBOL sistemlerinin dok\u00fcmantasyonlar\u0131n\u0131 inceleyin ve sistem mimarisini anlamaya \u00e7al\u0131\u015f\u0131n.<\/p>\n
Orta Seviye:<\/h3>\n
Daha geli\u015fmi\u015f COBOL konular\u0131na odaklan\u0131n. Dosya i\u015fleme, veritaban\u0131 ba\u011flant\u0131s\u0131 ve raporlama gibi konular\u0131 \u00f6\u011frenin. Daha karma\u015f\u0131k COBOL programlar\u0131 yazmaya \u00e7al\u0131\u015f\u0131n. Mevcut COBOL sistemlerindeki kodlar\u0131 inceleyin ve daha iyi anlayabilmek i\u00e7in hata ay\u0131klama yap\u0131n. K\u00fc\u00e7\u00fck \u00f6l\u00e7ekli COBOL projelerinde \u00e7al\u0131\u015farak deneyim kazan\u0131n.<\/p>\n
\u0130leri Seviye:<\/h3>\n
Performans optimizasyonu, g\u00fcvenlik ve \u00f6l\u00e7eklenebilirlik gibi ileri konular\u0131 \u00f6\u011frenin. Karma\u015f\u0131k COBOL sistemlerinde \u00e7al\u0131\u015f\u0131n ve yeni \u00f6zellikler ekleyin. COBOL'da yeni \u00f6zellikler eklerken kar\u015f\u0131la\u015fabilece\u011finiz zorluklar\u0131 ve \u00e7\u00f6z\u00fcm yollar\u0131n\u0131 ara\u015ft\u0131r\u0131n. Di\u011fer programlama dilleriyle COBOL'un entegrasyonunu \u00f6\u011frenin. Daha fazla bilgi i\u00e7in (https:\/\/fatihsoysal.com) inceleyebilirsiniz.<\/p>\n
Sonu\u00e7<\/h2>\n
Bu makalede, bir bankac\u0131l\u0131k sistemine COBOL kullanarak gizlice nas\u0131l yeni \u00f6zellikler ekledi\u011fimi anlatt\u0131m. Bu, eski sistemlerin modern d\u00fcnyaya entegre edilebilece\u011fini ve COBOL'un hala de\u011ferli bir programlama dili oldu\u011funu g\u00f6stermektedir. Ancak, eski sistemlere yeni \u00f6zellikler eklerken, performans optimizasyonu ve g\u00fcvenli\u011fe dikkat etmek \u00f6nemlidir. Bu s\u00fcre\u00e7 zaman al\u0131c\u0131 ve karma\u015f\u0131k olabilir, ancak do\u011fru yakla\u015f\u0131mla ba\u015far\u0131l\u0131 bir \u015fekilde ger\u00e7ekle\u015ftirilebilir.<\/p>\n
S\u0131k\u00e7a Sorulan Sorular:<\/h3>\n\n- COBOL \u00f6\u011frenmek zor mu?<\/strong> Evet, \u00f6\u011frenme e\u011frisi diktir, ancak bir\u00e7ok kaynak mevcuttur.<\/li>\n
- COBOL hala kullan\u0131l\u0131yor mu?<\/strong> Evet, bir\u00e7ok kritik sistem hala COBOL ile \u00e7al\u0131\u015f\u0131yor.<\/li>\n
- COBOL'u modern dillerle nas\u0131l entegre edebilirim?<\/strong> API'ler ve aray\u00fczler kullanarak entegre edebilirsiniz.<\/li>\n
- COBOL sistemlerini modernize etmek ne kadar maliyetlidir?<\/strong> Maliyet, sistemin b\u00fcy\u00fckl\u00fc\u011f\u00fcne ve karma\u015f\u0131kl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r.<\/li>\n
- COBOL sistemlerinde g\u00fcvenlik riskleri nelerdir?<\/strong> Eski sistemler g\u00fcvenlik a\u00e7\u0131klar\u0131na kar\u015f\u0131 daha savunmas\u0131z olabilir.<\/li>\n<\/ul>\n
Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"COBOL’la Konu\u015fan Bir Bankac\u0131l\u0131k Sistemi: Patronun Fark Etmedi\u011fi S\u0131rr\u0131m Eski, karma\u015f\u0131k sistemlerle bo\u011fu\u015furken yeni, modern \u00e7\u00f6z\u00fcmler geli\u015ftirmenin heyecan\u0131n\u0131…","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-29306","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n
COBOL'la Konu\u015fan Bir Bankac\u0131l\u0131k Sistemi: Patronun Fark Etmedi\u011fi S\u0131rr\u0131m<\/title>\n<meta name=\"description\" content=\"Eski, karma\u015f\u0131k sistemlerle bo\u011fu\u015furken yeni, modern \u00e7\u00f6z\u00fcmler geli\u015ftirmenin heyecan\u0131n\u0131 ve zorluklar\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcn. Bu makalede, bir bankac\u0131l\u0131k sistemine COBOL kullanarak gizlice nas\u0131l yeni \u00f6zellikler ekledi\u011fimi ve patronumun bunu nas\u0131l fark etmedi\u011fini ad\u0131m ad\u0131m a\u00e7\u0131klayaca\u011f\u0131m. Bu hikaye, eski sistemlerin modern d\u00fcnyaya nas\u0131l entegre edilebilece\u011fini, riskleri ve ba\u015far\u0131 i\u00e7in gereken stratejileri vurgulayacakt\u0131r. Ayn\u0131 zamanda COBOL'un g\u00fcc\u00fcn\u00fc ve gelecekteki rol\u00fcn\u00fc tart\u0131\u015faca\u011f\u0131z. Haz\u0131rsan\u0131z, ba\u015flayal\u0131m!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/cobolla-konusan-bir-bankacilik-sistemi-patronun-fark-etmedigi-sirrim\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"COBOL'la Konu\u015fan Bir Bankac\u0131l\u0131k Sistemi: Patronun Fark Etmedi\u011fi S\u0131rr\u0131m\" \/>\n<meta property=\"og:description\" content=\"Eski, karma\u015f\u0131k sistemlerle bo\u011fu\u015furken yeni, modern \u00e7\u00f6z\u00fcmler geli\u015ftirmenin heyecan\u0131n\u0131 ve zorluklar\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcn. Bu makalede, bir bankac\u0131l\u0131k sistemine COBOL kullanarak gizlice nas\u0131l yeni \u00f6zellikler ekledi\u011fimi ve patronumun bunu nas\u0131l fark etmedi\u011fini ad\u0131m ad\u0131m a\u00e7\u0131klayaca\u011f\u0131m. Bu hikaye, eski sistemlerin modern d\u00fcnyaya nas\u0131l entegre edilebilece\u011fini, riskleri ve ba\u015far\u0131 i\u00e7in gereken stratejileri vurgulayacakt\u0131r. Ayn\u0131 zamanda COBOL'un g\u00fcc\u00fcn\u00fc ve gelecekteki rol\u00fcn\u00fc tart\u0131\u015faca\u011f\u0131z. 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