"Separation of concerns" is an established software engineering theory based on the notion that it is beneficial to break down a large problem into a series of individual concerns.
This allows the logic required to solve the problem to be decomposed into a collection of smaller, related pieces. Each piece of logic addresses a specific concern.
This theory has been implemented in different ways with different development platforms. Object-oriented programming and component-based programming approaches, for example, achieve a separation of concerns through the use of objects, classes, and components.
