New DelhiAspect Oriented Programming

There are already a lot of robust programming methodologies like "Object Oriented Programming", "Procedural Programming" and "Distributed OOP". So, is it really a necessity to have another programming methodology named "Aspect Oriented Programming"? Is "Aspect Oriented Programming" is a substitute for "Object Oriented Programming"? What is an aspect? Many questions come in mind and the mystery gets more puzzled when Googling in the internet.