This topic is linked to my blog post on the development of the MWB iPhone app, HERE.
So, I started looking at how I might mirror the Core Data Object Model in drupal and decided to make some changes. Instead of having Citizen as one of the 4 instiutional categories of the Popycycle, it made sense to create Family, with Citizen as child. This also allows me to let citizens float between categories a bit. My thinking is that some citizens "transcend" family to be paragons of one of the other categories. That way, too, each of the major categories are similar, with similar fields and methods to access the subcontent in Citizen and Movie.
Okay, keep going. I need to decide whether I want to use the Drupal Relation module, or some combination of regular Content Types with Field Collections.
Here's the revised data model: