Lld Low Level Design

The chapters in this module, in reading order.

#	Chapter
00	Low-Level Design — The Five-Year-Old Version
01	From one box to many classes — draw the inside before coding
02	SOLID principles — keep each room doing one sensible job
03	Creational patterns — build rooms without hardcoding every brick
04	Structural patterns — connect rooms without breaking the whole building
05	Behavioral patterns — wire actions so the building reacts cleanly
06	Class and Schema Design — draw the floor plan before writing walls
07	API Contract Design — make the hallway explicit before traffic starts
08	State Machines and Workflows — wire the legal moves before features multiply
09	Exception Hierarchies — neat pipes for messy failures
10	Concurrency Patterns — many hands, one pipe room
11	Data Access Patterns — pipes to the storage basement
12	Design Patterns for AI — wiring the model switchboard
13	AI Component LLD — room-by-room design for model products
14	Honest Admission — even the neatest floor plan has grey corners