Summary

Summary · Chapter 16

Key takeaways

Change to a software system is inevitable, for many technical and business reasons. Architects should expect change and design with it in mind.
To build an evolutionary architecture, guide architecture modifications so the architecture’s characteristics and quality level stay intact.
Fitness functions help determine whether the architecture keeps achieving its required characteristics as it changes.
When changes are needed, practices like making incremental changes and keeping components loosely coupled make modifications easier.
Next chapter: how to become a better software architect through continuous improvement.