Summary

Summary · Chapter 6

Chapter recap

Orthogonal design — extend systems while minimizing impact on existing functionality by pursuing loose coupling and high cohesion.
Minimizing complexity — apply KISS, DRY, information hiding, YAGNI, and Separation of Concerns to keep systems as simple as they can (but no simpler).
SOLID principles — SRP, OCP, LSP, ISP, DIP produce code that is more understandable, maintainable, reusable, testable, and flexible.
Helping the team succeed — unit testing, easy environment setup, pair programming, and reviewing deliverables identify defects and raise quality.
Next chapter turns to software architecture patterns — reusable solutions to recurring problems.