What\'s the penetration of design patterns in the real world? Do you use them in your day to day job - discussing how and where to apply them with your coworkers - or do the
Yes, Factory, Chain of Responsibility, Command, Proxy, Visitor, and Observer, among others, are in use in a codebase I work with daily. As far as MVC goes, this site seems to use it quite well, and the devs couldn't say enough good things in the latest podcast.