How to use bll, dal and model?

You should start with what you need to make work the app.

There are more logical ways to map objects. All with their own different good and bad sides (i.e. You choose them depending on circumstances, among them the number of fields in each object).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.