Usually I prefer to handle lookups as Value objects . I also use Null Object pattern .
The system I'm currently working with creates an instance of the other business object and sets the Id. The other business object is then retrieved when it is used. E.g.
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.