How can I put all fetch requests in a Core Data DAL?

Don't do this; what you're doing is porting a pattern from one context to another where it doesn't really make sense.

Fetch request properly belong to the individual controllers in the Model-View-Controller pattern. A fetch returns the specific information, in the specific order, required by each individual view. Each fetch is customized for the needs of each particular view.

As such, putting all of an app's fetches in a single object would break encapsulation instead of enhancing it. Only fetched properties and fetched relationships belong in the data model itself.

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.