What is the difference between MVC and three-tier architecture?

What is the difference between MVC and three-tier architecture?

1. The three layers are divided based on business logic, while MVC is divided based on pages;

2. The three-tier pattern is an architecture pattern, and MVC is a design pattern. ;

3. The three-tier model can be classified as a deployment model, and MVC can be classified as a presentation model.

Three-tier architecture

Three-tier architecture (3-tier architecture) In the usual sense, the three-tier architecture divides the entire business application into: User Interface layer layer), business logic layer (Business Logic Layer), data access layer (Data access layer). The purpose of distinguishing levels is the idea of ​​"high cohesion and low coupling". In software architecture design, the hierarchical structure is the most common and important structure. The layered structure recommended by Microsoft is generally divided into three layers, from bottom to top: data access layer, business logic layer (also called domain layer), and presentation layer.

MVC

The full name of MVC is Model View Controller, which is the abbreviation of model-view-controller, a software design Model organizes code in a way that separates business logic, data, and interface display, and gathers business logic into one component. While improving and personalizing interfaces and user interactions, there is no need to rewrite business logic. MVC was uniquely developed to map traditional input, processing, and output functions into a logical graphical user interface structure.

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