How App Design Can Hurt App Development via TechCrunch

…During the prototyping process, designers tend to cherry pick numbers, names and images that best illustrate how the final app will respond to user inputs. In the process, they often forget just how widely varied and frankly messy user inputs can actually be — some of which can cause an app to “look off” or render it completely useless…

Source: How App Design Can Hurt App Development via TechCrunch

I just ran into this on a recent work project. This isn’t on knock on designers, rather, it is a recurring issue I’ve come across that can cause some heavy code refactoring when you are working on localizing apps for other languages. A single word used for a button action in English, for instance, may end up being a sentence in French.