Modularity, Module

Software design should be modularized. (Dianxiang Xu 83)

A software module is a container of elements. For example, a method is a container of statements, whereas a class is a container of instance variables, class variables, constructors, and methods. (Dianxiang Xu 85)

Modularity is the degree to which we separate the components of a system. A modular design divides complex software into uniquely named modules. These modules can be methods (functions), classes, interfaces, packages, etc.

Modular Toy Design

Non-Modular Toy Design

See Also:

• Cohesion

• Coupling

• Single Responsibility Principle (SRP)

• Interface Segregation Principle (ISP)