angular/angular.js — pull request #7841 by cquillen2003 (2014-06-15 03:04:46+00:00)
Title: Update concepts.ngdoc

As described in the "Adding UI logic: Controllers" section above, controller objects are created using the new operator and a constructor function. As I understand it, a factory function is a different way to create an object, so I think that these terms should not be used synonymously.