MVVM Design Pattern

Model-View-ViewModel (MVVM) is a structural design pattern that separates objects into three distinct groups:

 

• Models hold application data. They’re usually structs or simple classes.
• Views display visual elements and controls on the screen. They’re typically subclasses of UIView.
• View models transform model information into values that can be displayed on a view. They’re usually classes, so they can be passed around as references.

Does this pattern sound familiar? Yep, it’s very similar to Model-View-Controller (MVC). Note that the class diagram at the top of this page includes a view controller; view controllers do exist in MVVM, but their role is minimized.

 

결국엔 기술 부채를 줄이기 위함이다.

 

Design Patterns by Tutorials: MVVM