Video Mobile App Prototyping - Part 1 By Chad Udell Wednesday, January 25, 2017 0 Comments Bookmark Main Site Sign in Page Don't have an ATD account? Don't have an ATD account? Forgot your Password? Already an ATD customer without a web account? Institutional subscriber? Click here to sign in. Share Member-Only Content Chad Udell explains the process he uses to develop his prototypes and solutions. To access this content Join ATD or sign in. Sign In