Here is the video on the virtual learning session, I conducted on 4/1/2010 If you can’t see it here for some browser issue or prefer to see directly on viddler, here is the direct link. Code Sample used during demo can be downloaded from: http://mahendrablog.googlecode.com/svn/trunk/OCP.rar Continue Coding Smartly Technorati Tags: VirtualLearning OCP Agile OpenClosePrinciple BestPractises