{"id":10053,"date":"2020-05-09T17:37:52","date_gmt":"2020-05-09T09:37:52","guid":{"rendered":"https:\/\/www.finereport.com\/en\/?p=10053"},"modified":"2025-09-04T18:00:05","modified_gmt":"2025-09-04T10:00:05","slug":"3-tier-architecture","status":"publish","type":"post","link":"https:\/\/www.finereport.com\/en\/product-functions\/3-tier-architecture.html","title":{"rendered":"3 Tier Architecture: Everything You Need to Know"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"toc_transparent no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#1_What_is_a_3_Tier_Architecture\">1. What is a 3 Tier Architecture?<\/a><\/li><li><a href=\"#2_The_Three_Tiers_in_a_3_Tier_Architecture\">2. The Three Tiers in a 3 Tier Architecture<\/a><ul><li><a href=\"#21_Presentation_Tier\">2.1 Presentation Tier<\/a><\/li><li><a href=\"#22_Application_Tier\">2.2 Application Tier<\/a><\/li><li><a href=\"#23_Data_Tier\">2.3 Data Tier<\/a><\/li><\/ul><\/li><li><a href=\"#3_Rules_in_the_3_Tier_Architecture\">3. Rules in the 3 Tier Architecture<\/a><\/li><li><a href=\"#4_What_are_the_Advantages_and_Disadvantages_of_Using_a_3_Tier_Architecture\">4. What are the Advantages and Disadvantages of Using a 3 Tier Architecture?<\/a><\/li><li><a href=\"#5_3_Tier_Architecture_Examplenbsp\">5. 3 Tier Architecture Example&nbsp;<\/a><\/li><li><a href=\"#6_A_Conclusion_of_the_3_Tier_Architecture\">6. A Conclusion of the 3 Tier Architecture<\/a><\/li><\/ul><\/div>\n<h2><span id=\"1_What_is_a_3_Tier_Architecture\">1. What is a 3 Tier Architecture?<\/span><\/h2>\n\n\n\n<p>In the world of software development, 3 tier architecture has become the backbone of modern application design. A 3 tier architecture is an architecture pattern used in applications as a specific type of client-server system. It divides the architecture into three tiers: <strong><span class=\"has-inline-color has-luminous-vivid-amber-color\">data layer, application layer, and presentation layer<\/span><\/strong>.&nbsp;<\/p>\n\n\n\n<p>The 3 tier architecture refers to the logical 3-tier system rather than the physical one. It adds a &#8220;middle tier&#8221; between the client and the database. The main functions and business logic of the system are processed in the middle layer, which is the application layer.<\/p>\n\n\n\n<h2><span id=\"2_The_Three_Tiers_in_a_3_Tier_Architecture\">2. The Three Tiers in a 3 Tier Architecture<\/span><\/h2>\n\n\n\n<h3><span id=\"21_Presentation_Tier\">2.1 Presentation Tier<\/span><\/h3>\n\n\n\n<p>The presentation tier occupies the top level of the application. It sends content to browsers in web development frameworks, such as CSS, <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/html-report.html\" target=\"_blank\">HTML<\/a><\/strong>, or JavaScript, and displays information in the form of a graphical user interface (GUI), which allows users to access it directly. It communicates with other layers by putting out the results to the browser and other tiers through <a href=\"https:\/\/www.fanruan.com\/en\/blog\/API-data-integration\" target=\"_blank\" rel=\"noreferrer noopener\">API<\/a> calls.\u00a0<\/p>\n\n\n\n<h3><span id=\"22_Application_Tier\">2.2 Application Tier<\/span><\/h3>\n\n\n\n<p>The application tier is also called the business logic, logic tier, or middle tier. By processing the business logic for the application, it builds a bridge between the presentation layer and the data layer to make communication faster between the presentation and data layer.<\/p>\n\n\n\n<p>The application tier is usually coded in C#, Java, C++, Python, Ruby, etc.<\/p>\n\n\n\n<h3><span id=\"23_Data_Tier\">2.3 Data Tier<\/span><\/h3>\n\n\n\n<p>Data-tier is composed of a persistent storage mechanism and the <a href=\"https:\/\/www.fanruan.com\/en\/glossary\/big-data\/data-access\" target=\"_blank\" rel=\"noreferrer noopener\">data access<\/a> layer. It supports connecting with the <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/database-reporting-tools.html\" target=\"_blank\">database<\/a><\/strong> and performing insert, update, delete, and get data from the database based on our input data.\u00a0<\/p>\n\n\n\n<h2><span id=\"3_Rules_in_the_3_Tier_Architecture\">3. Rules in the 3 Tier Architecture<\/span><\/h2>\n\n\n\n<ol><li>The core rule: the presentation layer is only a shell and cannot contain any processing of BizLogic.<\/li><\/ol>\n\n\n\n<p>2. The design should be from the application layer rather than the presentation layer. The API of the application layer should implement all BizLogic on the API in an object-oriented manner.<\/p>\n\n\n\n<p>3. Whether the data layer is a simple SqlHelper or a class with Mapping, make sure it is independent of the abstract system layer.<\/p>\n\n\n\n<p>4. Whether you&#8217;re using COM+(<strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/enterprise-reporting.html\" target=\"_blank\">EnterpriseService<\/a><\/strong>), Remoting, or a remote object technology like <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/web-reports.html\" target=\"_blank\">WebService<\/a><\/strong>, whether you&#8217;re deploying it on a server or not, you have to consider clustering multiple servers through load balancing in your design.<\/p>\n\n\n\n<p>To sum up, when considering whether a project conforms to the application of a three-tier or multi-tier design, it is necessary to find whether it conforms to the requirements of the project.<\/p>\n\n\n\n<h2><span id=\"4_What_are_the_Advantages_and_Disadvantages_of_Using_a_3_Tier_Architecture\">4. What are the Advantages and Disadvantages of Using a 3 Tier Architecture?<\/span><\/h2>\n\n\n\n<p><strong>Advantages:<\/strong><\/p>\n\n\n\n<ul><li>It reduces dependencies between layers, following the principles of 3 tier architecture. Therefore, as long as developers adhere to interface standards and utilize the same entity classes of the object model, it allows different developers to work on each layer. This aspect can significantly improve the development speed of the system. <\/li><li>In a 3 tier architecture, each layer can be redeveloped or modernized independently, without affecting other layers. This capability shortens the time to market and reduces the cost of integrating new features into software as a service (SaaS), Cloud, and on-premise applications.<\/li><li>It provides ease of maintenance, and won&#8217;t affect other modules, which dramatically reduces maintenance costs and maintenance time.<\/li><li>Instead of directly accessing the <a href=\"https:\/\/www.fanruan.com\/en\/glossary\/big-data\/data-layer\" target=\"_blank\" rel=\"noreferrer noopener\">data layer<\/a>, the presentation layer only connects with the business logic layer, which improves <a href=\"https:\/\/www.fanruan.com\/en\/glossary\/big-data\/big-data-security\" target=\"_blank\" rel=\"noreferrer noopener\">data security<\/a>.<\/li><\/ul>\n\n\n\n<p><strong>Disadvantages:<\/strong><\/p>\n\n\n\n<ul><li>It reduces system performance. Without a hierarchical structure, businesses could go directly to the <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/database-reporting-tools.html\" target=\"_blank\">database<\/a><\/strong> to get the data, but now they have to go through the middle tier.<\/li><li>The 3 tier architecture sometimes results in cascading changes, especially in the top-down direction. If you need to add a feature in the presentation layer in the context of what is 3 tier architecture, you may need to add code in both the business logic layer and the data access layer to ensure that the design adheres to the principles of 3 tier architecture.<\/li><\/ul>\n\n\n\n<h2><span id=\"5_3_Tier_Architecture_Examplenbsp\">5. 3 Tier Architecture Example&nbsp;<\/span><\/h2>\n\n\n\n<p>Take <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\" target=\"_blank\"><strong>FineReport<\/strong> <\/a>as an example to help you better understand the 3 tier architecture. FineReport is <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/best-reporting-tools-list.html\" target=\"_blank\">reporting software<\/a><\/strong> that adopted the 3 tier architecture.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I.png\"><img loading=\"lazy\" width=\"2340\" height=\"1514\" src=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I.png\" alt=\"3-tier architecture of FineReport\" class=\"wp-image-9483\" srcset=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I.png 2340w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I-300x194.png 300w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I-768x497.png 768w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/02\/2020022703I-1024x663.png 1024w\" sizes=\"(max-width: 2340px) 100vw, 2340px\" \/><\/a><figcaption>3 Tier Architecture Example&nbsp;<\/figcaption><\/figure><\/div>\n\n\n\n<p>The data layer of FineReport is responsible for <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/management-reporting.html\" target=\"_blank\">data management<\/a><\/strong>, including data collection, ETL, building a data warehouse, etc. It supports multiple data sources and <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/features\/data-integration\" target=\"_blank\"><strong>data integration<\/strong><\/a>.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8.png\"><img loading=\"lazy\" width=\"1024\" height=\"539\" src=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8-1024x539.png\" alt=\"\" class=\"wp-image-17790\" srcset=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8-1024x539.png 1024w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8-300x158.png 300w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8-768x404.png 768w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8-1536x809.png 1536w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2024\/02\/Data-Connection-of-FineReport-8.png 1616w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption><a href=\"https:\/\/www.finereport.com\/en\/\" target=\"_blank\" rel=\"noreferrer noopener\">FineReport<\/a> supports multiple data sources<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-buttons\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-cyan-blue-to-vivid-purple-gradient-background has-text-color has-background\" href=\"https:\/\/www.fanruan.com\/en\/finereport\/download-trial-b\" style=\"border-radius:50px;color:#fffffa\" target=\"_blank\" rel=\"noreferrer noopener\">Try FineReport For Free<\/a><\/div>\n<\/div>\n\n\n\n<p>The application layer of FineReport is responsible for the main functions and business logic. In this part, as an <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/enterprise-reporting.html\" target=\"_blank\"><strong>enterprise reporting tool<\/strong><\/a>, it supports<strong> <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/report-designing.html\" target=\"_blank\">report design<\/a><\/strong>, <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/report-generation.html\" target=\"_blank\"><strong>report generation<\/strong><\/a>, and report management.&nbsp;<\/p>\n\n\n\n<p>In the presentation layer, FineReport can adaptively display reports and dashboards on PC, <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/mobile-reporting.html\" target=\"_blank\">mobile<\/a><\/strong>, and TV screens because the <strong><a href=\"https:\/\/www.finereport.com\/en\/data-visualization\/top-16-types-of-chart-in-data-visualization.html\" target=\"_blank\" rel=\"noreferrer noopener\">charts<\/a><\/strong> in FineReport are developed by <strong><a href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/html-report.html\" target=\"_blank\" rel=\"noreferrer noopener\">HTML5<\/a><\/strong>, which can be used cross-platform, adaptive to web design, and support instant updates.<\/p>\n\n\n\n<p>For example, when you want to create a <strong><a href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/sales-report.html\" target=\"_blank\" rel=\"noreferrer noopener\">sales report<\/a> <\/strong>based on the sales data stored in the CRM, the presentation layers send API calls to the data layer, the data layer of the FineReport runs the query and returns the results to the application layer, which formats it into a web page. The page is then sent back to the browser, where the presentation layer displays the reports on a laptop or other device.<\/p>\n\n\n\n<p>With the 3 tier architecture, you only need to install the designer on the report designer&#8217;s computer, and then deploy the project to the server. Other users can directly access the report as long as there is a browser on the computer.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/05\/2020051101I.png\"><img loading=\"lazy\" width=\"673\" height=\"573\" src=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/05\/2020051101I.png\" alt=\"3-tier architecture\" class=\"wp-image-10066\" srcset=\"https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/05\/2020051101I.png 673w, https:\/\/www.finereport.com\/en\/wp-content\/uploads\/2020\/05\/2020051101I-300x255.png 300w\" sizes=\"(max-width: 673px) 100vw, 673px\" \/><\/a><figcaption>3 Tier Architecture Diagram<\/figcaption><\/figure><\/div>\n\n\n\n<p>Once the report requirements change, it is very convenient to design locally and then publish to the remote server by switching the working directory or directly edit the report files on the remote server.<\/p>\n\n\n\n<p>In this way, for companies, it only needs to deploy the project once, and then it can be designed directly and remotely, which makes migrating reports conveniently and improves efficiency.<\/p>\n\n\n\n\n\n<h2><span id=\"6_A_Conclusion_of_the_3_Tier_Architecture\">6. A Conclusion of the 3 Tier Architecture<\/span><\/h2>\n\n\n\n<p>A 3 tier architecture is an architectural pattern used in the client-server system. Hope you could have a clear understanding of the advantages, disadvantages, rules, and examples of 3 tier architecture after reading this article. <\/p>\n\n\n\n<p>3 tier architecture has revolutionized the software development process by providing developers with a flexible, scalable, and maintainable framework for building modern applications. <strong><span class=\"has-inline-color has-luminous-vivid-amber-color\">With the help of powerful <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/reporting-tools\/best-reporting-tools-list.html\" target=\"_blank\">reporting tools<\/a> like <a rel=\"noreferrer noopener\" href=\"https:\/\/www.finereport.com\/en\/\" target=\"_blank\">FineReport<\/a>, developers can quickly and easily create complex reports, providing users with the insights they need to make informed decisions.<\/span><\/strong><\/p>\n\n\n\n<p>FineReport provides a free personal-use edition with no limitations and supports up to two concurrent users. <strong><span class=\"has-inline-color has-luminous-vivid-amber-color\">For enterprise users interested in pricing and product details, please contact us&nbsp;by clicking the button below:<\/span><\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-cyan-blue-to-vivid-purple-gradient-background has-text-color has-background\" href=\"https:\/\/www.fanruan.com\/en\/finereport\/download-trial-b\" style=\"border-radius:50px;color:#fffffa\" target=\"_blank\" rel=\"noreferrer noopener\">Try FineReport For Free<\/a><\/div>\n<\/div>\n\n\n\n<p>Also, please feel free to make an appointment for a live demo with our product experts. We will be more clear about your needs and see how FineReport can help you and your organization transform data into value.<\/p>\n\n\n\n<div style=\"margin:20px 0px\">\n<a href=\"https:\/\/www.fanruan.com\/en\/demo\" style=\"background-color:#2c7adf;padding: 15px 26px;border-radius:50px;color:#fff\" target=\"_blank\" rel=\"noreferrer noopener\">\nBook A Demo\n<\/a>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A 3-tier architecture is an architecture pattern used in applications as a specific type of client-server system. It divides the architecture into three tiers: data layer, application layer, and presentation layer.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":9483,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[111],"tags":[],"yst_prominent_words":[4628,4629,4635,4637,185,4636,4634,4649,1624,4648,4633,4641],"_links":{"self":[{"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/posts\/10053"}],"collection":[{"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/comments?post=10053"}],"version-history":[{"count":23,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/posts\/10053\/revisions"}],"predecessor-version":[{"id":19862,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/posts\/10053\/revisions\/19862"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/media\/9483"}],"wp:attachment":[{"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/media?parent=10053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/categories?post=10053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/tags?post=10053"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/www.finereport.com\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=10053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}