In what cases is a class model used in programming?

The class model in programming is used to represent real-world objects or abstract entities as classes with their properties and methods. In iOS development, the class model is often used for:

• Modeling application data — for example, creating classes for users, products, messages.
• Managing state and logic — classes encapsulate behavior and data.
• UI connections — models can be used in architectures like MVC, MVVM to pass data between layers.

Example: a User class with fields and methods for working with a user.

class User {
    var name: String
    var email: String

    init(name: String, email: String) {
        self.name = name
        self.email = email
    }

    func displayInfo() {
        print("User: \(name), Email: \(email)")
    }
}

Using classes allows structuring code, making it easier to support and extend the application.