Nowadays, everybody so concerned about DDD and how to implement business logic properly that people just forget about existence of other layers. Bada-bing bada-boom, other layers do exist. Shocked, don’t ya? Take your sit, you will be even more shocked when you realize this story dedicated to Application layer, also known as the least popular layer. I’ve seen multiple projects: some have it, some just don't understand what should be there and...

The main thing that you should know about Software Architecture reads as follows, “Graphical interface and data should be separated”. The worst thing you could do to your program is writing your code inside Form1.cs, HomeController.cs, MainWindow.cs etc. Do not write your code inside forms. Do not write your code inside controls. Do not write your code inside controllers. This may sound familiar to you. After all, this is the main...