Application architecture design

 We all know SOLID principles and architecture desing principles and style. As a .net developer most of my life is around working on layered architecture such as this.

-> Solution

        -> Project 1

          -> libraries

             -> modules

                   -> classes/interfaces

  -> Project 2

          -> libraries

             -> modules

                   -> classes/interfaces

With layered architecture we achieve following key design principles

• DRY- resuse code
• Separation of concerns
• Easy to maintain code in one place

Journey towards Clean architecture

 During the early inception of technology, we started with Classic Three Layered Database centric Architecture.

Traditional Database centric 3 Layered Architecture

Onion Architecture