flex - cairngorm 3 architecture -

I have heard that the Carogram is not a framework and mutually structured inbuilt (IoC container). Therefore, we do not need to use the Font Controller to control the rescue request from here.

I searched for documents for Carriage 3 architecture, but could not find it anywhere.

Is it necessary to know the Carromom 2 or Parsley Framework? IoC container) or designed pattern to learn the Carriage 3 architecture.

Thanks, Ravi