The original title is: "LLD Domain Modeling: How to Debug Your Design When It Feels "Wrong""

Short summary

A practical guide to diagnosing and fixing domain modeling problems in low-level design. Symptoms like scattered responsibilities, fat services, and unclear boundaries point to deeper issues: missing aggregates, anemic entities, hidden coupling, and uncontrolled state transitions. The fix is not adding more layers but realigning ownership, invariants, and bounded contexts with actual business behavior.

• •Identify symptoms like fat services, anemic entities, and unclear ownership to diagnose modeling issues
• •Fix by aligning aggregates, invariants, and bounded contexts with real business behavior
• •Simplify rather than add layers — removing abstractions often reveals correct boundaries

Generated with AI, which can make mistakes.