Steps that you need to follow while approaching any system desing discussion in the system design interviews. Follow the steps mentioned in the below PDF and you’re good to go. I tried to explain the each step along with some explanation for the online movie ticket booking system like BookMyShow. Cheers!

Notemaking Toolkit:
Device: iPad Air
Tool: Apple Pencil
App: Goodnotes (My favourite) or you can also check out Notability.