Objec t Orie nte d Programm i ng (O OP)

         A sp ec t Orie nte d Programm i ng (A OP)

OOP   defines     an   application a s   a   set   of   co lla borating objects. OOP code scatters sy ste m level code like security, logging etc w i th the business logic code.

AOP   defines   at   t he   complex   softw a re   s y stem   a s   combined implementation of multiple concerns like data persistence, busine ss logic,    logging,    securit y ,    multithread    s afet y ,    e rro r handling, and so on. Separ ates business rules code from t he sy stem level program . In fact one concern remains una w are o f other rule s.

OOP nomenclatu re has o bjects, classes, interfaces etc.

AOP nomenclatu re has advice, point cuts, join points, and aspects.

Gives benefits such as code reuse, flex ibility , im proved maintainability , modular architect ure, red uced development time etc w i th th e hel p of e ncapsulation, inheritance and pol y mo rphism.

AOP implementa tion exists w i th the OOP b y cho osing OOP as the base language. E.g : Aspect uses Java as the base languag e.

AOP give s be nefits p rovided by OOP plus som e additional benefits.