Lucas Reis thinks this is interesting: View logic should prepare data only for display and never modify the model. Controller logic should never directly create, update, or delete data from the model. The client should never directly access the data store. From CHAPTER 3: Putting AngularJS in Context from Pro AngularJS by Adam Freeman Publisher: Apress Released: April 2014 Note Good patterns Share this highlight http://www.safaribooksonline.com/a/pro-angularjs/4010/ Twitter Facebook Google Plus Email Get Instant Access Now Start a Free Trial Have an account? Sign in. Minimise Unlock the rest of Pro AngularJS and 30,000 other books and videos By clicking this box, you confirm that you have read and agree to the terms and conditions of our Membership Agreement, and you understand that when your trial period ends, you will be required to provide billing information if you wish to continue using the service. Unlock the rest of this book Start a Free 10-Day Trial loading Learn about Safari for Business Have an account? Sign in.