Building Evolutionary Architectures: Support Constant Change

For me it is difficult to give a proper rating or review here, because it is difficult to say something about this book. I originally read Software Architecture: The Hard Parts: Modern Tradeoff Analysis for Distributed Architecture and there were many mentions of this book inside of it and the title of it is really intriguing.

And it is a good read, but basically summarises lots of the information that is in the other book and doesn't give much details and examples how a fitness function can be. There is more like a loose description what can tested and what should be.