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MV* Architectural Patterns

Brief description of the following patterns:

  • MVC
  • MVVM
  • MVP

Key Ideas

Split business logic of the application from interface.

Schema of WEB application

Business logic is the core functionality that solves specific business problem ( for example, user registration, payments, add item to the basket, blog post creation, etc.) It is an algorithm of process that we want to implement to transform data somehow in order to provide a service (solve business problem). Sometimes it is called "use case".

Interface is the graphical interface that user interacts with. Such as forms, buttons, etc.

Controller is an intermediary between the UI (View) and business logic (Model). It should be 'thin', so it should not duplicate business logic or take any part of it, only some 'light' features, such as values validation.