Before going in to discuss what is OOAD, we have to understand how we 'think' usually.
While there could be many thinking that exists before OO, it is very common to think in procedural oriented way as that was the latest development before OO has come to party.
So what is that thinking and what is the procedural way, a short recap:
As the software development happens only when there is a requirement, let us take some requirement.
Let us take the example of coffee maker.
