{"id":104,"date":"2025-12-14T15:04:07","date_gmt":"2025-12-14T15:04:07","guid":{"rendered":"https:\/\/blog.metu.edu.tr\/e260506\/?p=104"},"modified":"2025-12-14T17:04:56","modified_gmt":"2025-12-14T17:04:56","slug":"design-and-pattern","status":"publish","type":"post","link":"https:\/\/blog.metu.edu.tr\/e260506\/2025\/12\/14\/design-and-pattern\/","title":{"rendered":"Design and Pattern"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Design patterns are reusable solutions to common software design problems, helping developers build cleaner, scalable, and maintainable systems. They act as templates for solving recurring issues in object creation, structure, and behavior.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">What Are Design Patterns?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Design patterns are <strong>best practices in software engineering<\/strong> that emerged from decades of trial and error by experienced developers. They provide <strong>standardized approaches<\/strong> to recurring problems, ensuring that solutions are both efficient and easy to understand.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Origin:<\/strong> The concept was popularized in 1994 by the <em>Gang of Four<\/em> (Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides) in their book <em>Design Patterns: Elements of Reusable Object-Oriented Software<\/em>.<\/li>\n\n\n\n<li><strong>Purpose:<\/strong> They improve <strong>code readability, reusability, and maintainability<\/strong>, while reducing development time by avoiding reinventing solutions.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">Types of Design Patterns<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Design patterns are generally categorized into three main groups:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Creational Patterns<\/strong> \u2013 Focus on object creation mechanisms, making systems more flexible and reusable.<br><em>Examples: Singleton, Factory Method, Abstract Factory, Builder, Prototype.<\/em><\/li>\n\n\n\n<li><strong>Structural Patterns<\/strong> \u2013 Deal with object composition, ensuring that parts of a system fit together efficiently.<br><em>Examples: Adapter, Composite, Proxy, Decorator, Facade, Bridge.<\/em><\/li>\n\n\n\n<li><strong>Behavioral Patterns<\/strong> \u2013 Address communication between objects, defining how they interact and distribute responsibilities.<br><em>Examples: Observer, Strategy, Command, State, Mediator, Iterator.<\/em><\/li>\n\n\n\n<li><img decoding=\"async\" src=\"https:\/\/blog.metu.edu.tr\/e260506\/files\/2025\/12\/0_ayrM33bNKGrPSsJ1.png\" alt=\"\" \/><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">Why They Matter<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Consistency:<\/strong> Provide proven solutions across projects.<\/li>\n\n\n\n<li><strong>Scalability:<\/strong> Make systems easier to expand and maintain.<\/li>\n\n\n\n<li><strong>Collaboration:<\/strong> Help teams communicate using a shared vocabulary.<\/li>\n\n\n\n<li><strong>Efficiency:<\/strong> Reduce bugs and speed up development by reusing established solutions.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">Learn More<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Here are some excellent resources to dive deeper into design patterns:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.geeksforgeeks.org\/system-design\/software-design-patterns\/\">GeeksforGeeks \u2013 Design Patterns Tutorial<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.tutorialspoint.com\/design_pattern\/design_pattern_overview.htm\">TutorialsPoint \u2013 Design Patterns Overview<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/stackinterface.com\/what-is-design-pattern\/\">StackInterface \u2013 What Is a Design Pattern?<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n","protected":false},"excerpt":{"rendered":"<p>Design patterns are reusable solutions to common software design problems, helping developers build cleaner, scalable, and maintainable systems. They act as templates for solving recurring issues in object creation, structure, and behavior. What Are Design Patterns? Design patterns are best practices in software engineering that emerged from decades of trial and error by experienced developers. [&hellip;]<\/p>\n","protected":false},"author":9253,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[9,8],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-design","category-programming"],"_links":{"self":[{"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/users\/9253"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/comments?post=104"}],"version-history":[{"count":0,"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/posts\/104\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/media?parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/categories?post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.metu.edu.tr\/e260506\/wp-json\/wp\/v2\/tags?post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}