Difference between Pure MVC Multicore vs Singlecore / Standard

Recently during interview, my interviewer asks me question "What is difference between Pure MVC Multicore vs SingleCore?" and I was not able to answer even after working on the framework for past 2 years. So after interview got over I set down to find the answer for the question and here are what I found.

The Standard version of Pure MVC use Singletons to provide access to framework core actors (Façade, Model, View and Controller). Access to all the actors is through standard getInstance method. Where as in Multicore version of Pure MVC, Multitons is use to allow multiple instances of framework actors. The access to the various core actors within the framework is provided by passing a unique instance key to the getInstance method. This implies that multiple instances of the core actors may co-exist without interfering with each other. 

The Multicore variation supports modular programming allowing the use of independent program modules each with their own independent Singlecore Pure MVC.


For detail description on same topic please visit following link:  
http://lowpitch.com/blog/puremvc-multicore-vs-standard-singlecore/