AOP and OOP

AOP - Aspect Oriented Programming provides us the ability to interpose customer behavor before/after invocations on any object. This enable us to address crosscutting enterprise concerns that apply to multiple object.

OOP works well in general, AOP is a complementing rather than competing with OOP. For example, if we have to apply the same transactional behavior to multiple objects and methods, we need cut/paste the same code into each method. AOP give us a better way to pack such concerns into ASPECTS.