After a bit of a snafoo on how to start reading the docs, I think I got it figured out, at least for now. We will see as I keep going learning about The Core Data Model and what it is and how it works.
Tag: How does core data work
iOS Persistence and Core Data part2
This article goes into Core Data and how it works in a high level way. It is referred to as the Core Data Stack and I will attempt at breaking it down.