This paper introduces an extension to the object oriented programming paradigm.

Terms:

Concern: properties or areas of interest of a system

Aspect Oriented techniques:

finds concerns and separates them out from other concerns, taking them out of the object structure.

1. Specify aspects: define joining points, figure out the parameterization and the extent to which aspects can be customized for a particular use. Figure out dependence on OO programming systems.

2. Static/Dynamic divides.

3. Decoupling. can the writer of the main code ignore the aspect's details or not.

4. Global vs local functionality.

5. Context: domain specific? unique? reusable? testability?

"Law of Demeter": objects should only have knowledge of closely related objects.

Separation of behavioral concerns from structural.

Critiques of Object Oriented techniques:

1. finding commonality among classes and push them up in the inheritance tree.

see: aosd.net