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 The Layered Architecture, also called N-Tier Architecture, is one of the most widely adopted patterns in enterprise software development. It organizes code into horizontal layers stacked on top of each other, where each layer has a distinct responsibility and only communicates with adjacent layers. Here's a visual breakdown of how the Layered Architecture works The Four Standard Layers Explained 1. Presentation Layer (Top) This is the layer users interact with directly. It handles everything visual and user-facing, including web pages, mobile app screens, desktop GUIs, and REST API endpoints. Its job is to display information and capture user input, then pass requests down to the business layer. It should contain no business rules; it only knows how to present data and collect input. Technologies typically used here include React, Angular, Vue.js, HTML/CSS, mobile frameworks like Swift or Kotlin, and API controllers in frameworks like Spring or ASP.NET. 2. Business Logic Layer ...