Hi, I am looking to develop a small app of lookup tables. I was hoping to have a roller selector with a number of selections, when you select a particular option it will load a series of unique values for that option. Again when you select the second option it will give a result unique to those two options chosen. I have been reading up on this, and I am confused on the best way to achieve this. I was planning to use Swift to programme, some articles I have read suggest CoreData others suggest plist. I am confused on which way to go, can anyone offer any advice?