cohesion - w3toppers.com

Coupling, Cohesion and the Law of Demeter

Grady Booch in “Object Oriented Analysis and Design”: “The idea of cohesion also comes from structured design. Simply stated, cohesion measures the degree of connectivity among the elements of a single module (and for object-oriented design, a single class or object). The least desirable form of cohesion is coincidental cohesion, in which entirely unrelated abstractions … Read more

What is high cohesion and how to use it / make it?

High cohesion is when you have a class that does a well defined job. Low cohesion is when a class does a lot of jobs that don’t have much in common. Let’s take this example: You have a class that adds two numbers, but the same class creates a window displaying the result. This is … Read more