aspect-oriented programming
Aspect-oriented programming, or AOP, complements object-oriented programming by allowing the developer to dynamically modify the static object-oriented model to create a system that can grow to meet new requirements, allowing an application to adopt new characteristics as it develops.
*AOP provides a solution for abstracting cross-cutting code that spans object hierarchies without functional relevance to the code it spans. Instead of embedding cross-cutting code in classes, AOP allows you to abstract the cross-cutting code into a separate module (known as an aspect) and then apply the code dynamically where it is needed. You achieve dynamic application of the cross-cutting code by defining specific places (known as pointcuts) in your object model where cross-cutting code should be applied. At runtime or compile time, depending on your AOP framework, cross-cutting code is injected at the specified pointcuts. Essentially, AOP allows you to introduce new functionality into objects without the objects' needing to have any knowledge of that introduction.
*[Source: Oracle technology Network]
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