Can You Use an Existing Core Data DataModel in a New App?

Is it possible to use an existing Core Data model structure in a new iPhone application or do I have to manually re-create all the entities\attributes? If so, how do I bring it into the ne开发者_如何学运维w application?

Have you tried copying the xcdatamodeld file along with all models from one app to the other? Also, is this for Mac or iOS?