Locality of Behaviour (LoB)

Carson Gross
May 29, 2020

“The primary feature for easy maintenance is locality: Locality is that characteristic of source code that enables a programmer to understand that source by looking at only a small portion of it.” – Richard Gabriel

The LoB Principle

Locality of Behaviour is the principle that:

The behaviour of a unit of code should be as obvious as possible by looking only at that unit of code