Question about Core Data Models and frameworks

FROM : Michael Latta
DATE : Fri Feb 08 18:53:58 2008

Is it possible to have a framework with the abstract part of a Core 
Data model, then have the concrete leaf part of the model in the 
application?  I can see wanting to have a core model that supports the 
needs of the framework and having various subclasses in the 
application.  I see there is a way to merge models, but how do I build 
the application model to reference the framework model?  Does it just 
merge entities with the same name?  There does not seem to be much 
documentation on merging models and what it really means.

Michael