{"id":22440,"date":"2025-05-28T22:30:17","date_gmt":"2025-05-28T19:30:17","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/"},"modified":"2025-05-28T22:30:17","modified_gmt":"2025-05-28T19:30:17","slug":"sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/","title":{"rendered":"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi"},"content":{"rendered":"<p><body><\/p>\n<p>Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi<\/p>\n<p>Merhaba!  Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m.  Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor.  \u00d6ncelikle HLD ve LLD&#8217;nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z.  Umar\u0131m bu makale, sistem tasar\u0131m s\u00fcre\u00e7lerinizi daha iyi anlaman\u0131za yard\u0131mc\u0131 olur.<\/p>\n<h2>Y\u00fcksek Seviyeli Tasar\u0131m (HLD): Genel Bak\u0131\u015f<\/h2>\n<p>Y\u00fcksek Seviyeli Tasar\u0131m (HLD), sistemin genel mimarisini, ana bile\u015fenlerini ve bunlar\u0131n nas\u0131l etkile\u015fimde oldu\u011funu tan\u0131mlar.  Basit\u00e7e s\u00f6ylemek gerekirse, sistemin b\u00fcy\u00fck resmini \u00e7izer.  HLD, genellikle blok diyagramlar\u0131, veri ak\u0131\u015f diyagramlar\u0131 ve s\u0131n\u0131f diyagramlar\u0131 gibi g\u00f6rsel ara\u00e7lar kullanarak olu\u015fturulur.  Bu a\u015famada, ayr\u0131nt\u0131l\u0131 kodlama veya algoritma tasar\u0131mlar\u0131na girmeyiz.  \u00d6nemli olan, sistemin i\u015flevselli\u011fini ve bile\u015fenler aras\u0131ndaki ileti\u015fimi net bir \u015fekilde ortaya koymakt\u0131r.  Sonu\u00e7 olarak, HLD, projenin t\u00fcm payda\u015flar\u0131n\u0131n ayn\u0131 sayfada olmas\u0131n\u0131 sa\u011flar.  Bu sayede, daha sonraki a\u015famalarda ortaya \u00e7\u0131kabilecek sorunlar\u0131n \u00f6n\u00fcne ge\u00e7ilir.<\/p>\n<p>HLD belgelerinde genellikle \u015fu unsurlar yer al\u0131r:<\/p>\n<ul>\n<li>Sistem mimarisi<\/li>\n<li>Ana bile\u015fenlerin tan\u0131m\u0131<\/li>\n<li>Bile\u015fenler aras\u0131ndaki etkile\u015fim<\/li>\n<li>Veri ak\u0131\u015f\u0131 diyagramlar\u0131<\/li>\n<li>Sistemin performans gereksinimleri<\/li>\n<li>G\u00fcvenlik gereksinimleri<\/li>\n<\/ul>\n<h2>D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD): Ayr\u0131nt\u0131lara \u0130ni\u015f<\/h2>\n<p>D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) ise HLD&#8217;nin ayr\u0131nt\u0131l\u0131 bir \u015fekilde ele al\u0131nmas\u0131d\u0131r.  LLD&#8217;de, her bir bile\u015fenin nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131, hangi verileri kulland\u0131\u011f\u0131 ve di\u011fer bile\u015fenlerle nas\u0131l ileti\u015fim kurdu\u011fu belirtilir.  Bu a\u015famada, algoritmalar, veri yap\u0131lar\u0131 ve kodlama detaylar\u0131 \u00fczerinde \u00e7al\u0131\u015f\u0131l\u0131r.  LLD, genellikle s\u0131n\u0131f diyagramlar\u0131, s\u0131ra diyagramlar\u0131 ve veri yap\u0131lar\u0131 gibi teknik belgelerle desteklenir.  LLD sayesinde, geli\u015ftiriciler kodlama a\u015famas\u0131na daha haz\u0131rl\u0131kl\u0131 bir \u015fekilde ge\u00e7erler.  Ayr\u0131ca, kodun test edilebilirli\u011fini ve s\u00fcrd\u00fcr\u00fclebilirli\u011fini art\u0131r\u0131r.  Bu nedenle,  LLD&#8217;nin dikkatlice haz\u0131rlanmas\u0131 \u00e7ok \u00f6nemlidir.<\/p>\n<p>LLD belgelerinde genellikle \u015fu unsurlar yer al\u0131r:<\/p>\n<ul>\n<li>Her bile\u015fenin ayr\u0131nt\u0131l\u0131 tan\u0131m\u0131<\/li>\n<li>Veri yap\u0131lar\u0131 ve algoritmalar<\/li>\n<li>S\u0131n\u0131f diyagramlar\u0131 ve s\u0131ra diyagramlar\u0131<\/li>\n<li>Mod\u00fcller aras\u0131 aray\u00fczler<\/li>\n<li>Hata y\u00f6netimi stratejileri<\/li>\n<li>Veritaban\u0131 tasar\u0131m\u0131 (gerekirse)<\/li>\n<\/ul>\n<h2>HLD ve LLD Aras\u0131ndaki Farklar<\/h2>\n<p>\u00d6zetle, HLD sistemin genel g\u00f6r\u00fcn\u00fcm\u00fcn\u00fc, LLD ise detaylar\u0131 ele al\u0131r.  HLD daha soyut ve geneldir, LLD ise daha somut ve ayr\u0131nt\u0131l\u0131d\u0131r.  HLD,  projenin genel mimarisini belirlerken,  LLD her bir bile\u015fenin nas\u0131l uygulanaca\u011f\u0131n\u0131 belirler.  \u0130kisinin de proje ba\u015far\u0131s\u0131 i\u00e7in \u00f6nemli oldu\u011funu unutmamak gerekmektedir.  Birbirlerini tamamlarlar ve ba\u015far\u0131l\u0131 bir sistem geli\u015ftirmek i\u00e7in beraberce kullan\u0131lmal\u0131d\u0131rlar.<\/p>\n<h2>\u00d6rnek Senaryo: E-Ticaret Sistemi<\/h2>\n<p>Bir e-ticaret sistemini ele alal\u0131m. HLD&#8217;de, \u00fcr\u00fcn katalo\u011fu, al\u0131\u015fveri\u015f sepeti, \u00f6deme ge\u00e7idi ve kullan\u0131c\u0131 y\u00f6netimi gibi ana bile\u015fenler tan\u0131mlan\u0131r ve aralar\u0131ndaki etkile\u015fim g\u00f6sterilir.  LLD&#8217;de ise, \u00f6rne\u011fin al\u0131\u015fveri\u015f sepeti bile\u015feni i\u00e7in kullan\u0131lan veri yap\u0131lar\u0131, \u00fcr\u00fcn ekleme\/\u00e7\u0131karma algoritmalar\u0131 ve veritaban\u0131 ile etkile\u015fim detaylar\u0131 belirtilir.  Bu \u015fekilde, sistemin hem genel mimarisi hem de her bir bile\u015feninin detaylar\u0131 a\u00e7\u0131k\u00e7a tan\u0131mlanm\u0131\u015f olur.<\/p>\n<p>Umar\u0131m bu makale, HLD ve LLD&#8217;yi anlaman\u0131za yard\u0131mc\u0131 olmu\u015ftur.  Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz.  Sistem tasar\u0131m\u0131 hakk\u0131nda daha fazla yaz\u0131 ve rehber i\u00e7in sitenizi takip etmeyi unutmay\u0131n!<\/p>\n<h3>#Etiketler<\/h3>\n<p>#HLD #LLD #SistemTasar\u0131m\u0131 #Yaz\u0131l\u0131mTasar\u0131m\u0131 #Geli\u015ftiriciRehberi #Y\u00fcksekSeviyeliTasar\u0131m #D\u00fc\u015f\u00fckSeviyeliTasar\u0131m #Mimari #Tasar\u0131mDesenleri #Eticaret<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme&hellip;","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-22440","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi<\/title>\n<meta name=\"description\" content=\"Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD&#039;nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. Umar\u0131m bu makale, sistem tasar\u0131m s\u00fcre\u00e7lerinizi daha iyi anlaman\u0131za yard\u0131mc\u0131 olur.\" \/>\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\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD&#039;nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. Umar\u0131m bu makale, sistem tasar\u0131m s\u00fcre\u00e7lerinizi daha iyi anlaman\u0131za yard\u0131mc\u0131 olur.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-28T19:30:17+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi\",\"datePublished\":\"2025-05-28T19:30:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\"},\"wordCount\":665,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/\",\"name\":\"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-05-28T19:30:17+00:00\",\"description\":\"Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD'nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. 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Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD'nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. Umar\u0131m bu makale, sistem tasar\u0131m s\u00fcre\u00e7lerinizi daha iyi anlaman\u0131za yard\u0131mc\u0131 olur.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/","og_locale":"tr_TR","og_type":"article","og_title":"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi","og_description":"Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD'nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. Umar\u0131m bu makale, sistem tasar\u0131m s\u00fcre\u00e7lerinizi daha iyi anlaman\u0131za yard\u0131mc\u0131 olur.","og_url":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/","og_site_name":"Kodlar\u0131n Gizemli D\u00fcnyas\u0131","article_published_time":"2025-05-28T19:30:17+00:00","author":"Fatih Soysal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Fatih Soysal","Tahmini okuma s\u00fcresi":"3 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/#article","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/"},"author":{"name":"Fatih Soysal","@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"headline":"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi","datePublished":"2025-05-28T19:30:17+00:00","mainEntityOfPage":{"@id":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/"},"wordCount":665,"commentCount":0,"publisher":{"@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/fatihsoysal.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/","url":"https:\/\/fatihsoysal.com\/blog\/sistem-tasariminda-hld-ve-lld-anlamak-gelistirici-rehberi\/","name":"Sistem Tasar\u0131m\u0131nda HLD ve LLD Anlamak: Geli\u015ftirici Rehberi","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/#website"},"datePublished":"2025-05-28T19:30:17+00:00","description":"Merhaba! Fatih Soysal olarak, yaz\u0131l\u0131m sistemlerinin tasar\u0131m s\u00fcrecinde kritik \u00f6neme sahip olan Y\u00fcksek Seviyeli Tasar\u0131m (HLD) ve D\u00fc\u015f\u00fck Seviyeli Tasar\u0131m (LLD) kavramlar\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Bu rehber, \u00f6zellikle yaz\u0131l\u0131m geli\u015ftiriciler i\u00e7in pratik bir kaynak olma amac\u0131 ta\u015f\u0131yor. \u00d6ncelikle HLD ve LLD'nin ne oldu\u011funu ve aralar\u0131ndaki farklar\u0131 anlayarak ba\u015flayal\u0131m. Daha sonra, her birinin ayr\u0131nt\u0131lar\u0131na daha yak\u0131ndan bakaca\u011f\u0131z. 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