Week 4 – Isolating the Domain

Sun, 01 Jun 2025 00:00:00 +0000

Discussion led by Ayush Gupta

I will start off with quoting this line from the chapter which I think really resonates with the idea of design principles we are discussing:

“When domain logic is embedded in other layers, it becomes hard to see, test, and evolve.”

One bit I really liked was the distinction between Application and Domain layers. The app layer doesn’t do business logic; it orchestrates it. That alone can clean up so much of the mess I’ve seen in bloated service classes.

Layered-Architecture on communities.abhinav-ja.in

Week 4 – Isolating the Domain