Can anybody explain these words.Presentation Tier .Business Tier .Integration Tier in java EE with example?

Mulit-tier architecture or n-tier architecture, is an architecture style in which the different responsibilities of an application are broken up into distinct tiers, typically.

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.