← Principles
Interface Segregation
No client should be forced to depend on methods it does not use. Prefer small, focused interfaces over large, general-purpose ones.
4 Lessons
Knowledge Course
01
Interface Segregation: Fat Interfaces Hurt Callers
Why a "kitchen sink" interface forces every implementer to carry every method.
45 min→
02Interface Segregation in Production: APIs and Services
Segregating service APIs, DTOs, and read models by consumer need.
60 min→
03Advanced Interface Segregation: Role Interfaces and Adapters
Role interfaces, adapter segregation, and keeping interfaces stable as systems grow.
75 min→
04Interface Segregation: Review & Mastery Quiz
Scenario questions on fat interfaces, DTOs, and role ports.
quiz30 min→
Curated Resources
Free Books & Guides
Official Documentation
Video Courses
Interface Segregation — Explained (YouTube)
A video explanation of the Interface Segregation principle with practical examples.
freeCodeCamp — Software Architecture Course
A comprehensive course covering software architecture principles, patterns, and best practices.
ByteByteGo — Distributed Systems
High-quality animated explanations of system design principles, distributed systems, and architecture patterns.