A three-tier architecture is a type of software architecture that divides an application into three logical layers or tiers: the presentation tier, the application tier, and the data tier.
The presentation tier is the top layer, responsible for presenting information to the user and receiving user input. It typically consists of a user interface that may include web pages, mobile apps, or other interactive elements.
The application tier is the middle layer, responsible for processing and managing data. It may include business logic, middleware, or other application components that perform complex processing and interact with other systems.
The data tier is the bottom layer, responsible for storing and retrieving information. It typically includes a database or other data storage system that is optimized for fast and efficient data access.
By dividing an application into three logical layers, a three-tier architecture helps to improve scalability, maintainability, and security. It also makes it easier to develop and test each layer independently, which can speed up the development process and reduce the risk of errors and bugs.
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