What is Aspect-Oriented Programming?
Aspect-Oriented Programming (AOP) is a programming paradigm which aims
to increase modularity by allowing the separation of "cross-cutting
"concerns.

It includes programming methods and tools that support the
modularization of concerns at the level of the source code, while
"aspect-oriented software development" refers to a whole engineering
discipline.

Aspect-Oriented Programming (AOP) allows you to modularise code for
issues that would otherwise be spread across many parts of a program
and be problematic to both implement and maintain.