Summary Separation of Concerns

Creating software is more than one activity. The software that we create does more than one thing, and does most of the things it does in more than one way. Software has to be changed for more than one reason, and these changes are of various types. Clarity, consistency, and efficiency can be fundamentally increased by adhering to the notion of the Separation of Concerns. In this summary, we will examine this principle and how we are promoting it by recommending specific practices in this book.