The Best Comparison I ever read

Love Marriage vs Arranged Marriage

Love Marriage:-Resemblesprocedural programming language. We have some set of functions like flirting, going to movies together, making long conversations on phone and then try to fit all functions to the candidate we like.
Arranged Marriage:-
Similar toobject oriented programming approach. We first fix the candidate and then try to implement functions on her. The functions are added to supplement the main program. The functions can be added or deleted.

Love Marriage:-Family system hangs because hardware (calledParents) is not responding.
Arranged Marriage:-
Compatible with hardware(Parents).

Love Marriage:-You are the project leader so u are responsible for implementation and execution of PROJECT- married life.
Arranged Marriage:-
You are a team member under project leader (parents) so they are responsible for successful execution of project Married life.

Love Marriage:-Client expectations include exciting feature as spouse cooking food, washing clothes etc.
Arranged Marriage:-
All these features are covered in the SRS (System Req. Specification) as required features.

Love Marriage is likeWindows, beautiful n seductive... . Yet one never knows when it willcrash....if crashes that's the end
Arranged Marriage is likeUnix.... Boring n colorless... but still extremelyreliable n robust. May crash but easy to recover