This week we are reading chapter 4, Architectural Coupling in Building Evolutionary Architecture: Support Constant Change.

This chapter introduces the concept of Architectural Quanta which the authors define as, "an independently deployable component with high functional cohesion, which includes all the structural elements required for the system to function properly."

This chapter also digs into several architecture patterns and evaluates how well they support the three primary aspects of evolutionary architecture fitness functions, incremental change, and appropriate coupling.

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