3-tier System

A 3-tier system refers to an organized way of designing software applications by separating it into three layers: the presentation layer (how users interact with the system, like a website or app interface), the logic layer (the rules and processes that manage data and operations), and the data layer (where information is stored and retrieved, such as databases). This separation enhances maintainability, scalability, and security, allowing each layer to be developed, updated, or managed independently. It helps create flexible and efficient systems by clearly defining responsibilities within the application structure.