[nathanwalters]

Thanks for the in-depth response. That sounds like a much nicer solution than what I have to use with Android, which doesn't provide anything like the Core Data model offered by Apple. My solution involves a lot of (de)serialization of JSON files to/from Bundles which are used to store and access data. I would be using an SQLite database for all this but that didn't fit with my model of making the system very extensible and adaptable year-to-year. If you have time (I know how the life of a developer is!) it'd be great if you could write up a whitepaper outlining how your app functions; that would be an interesting read.