It happened to me last week: I'm at the supermarket self-checkout, I'm trying to pay, and I find myself with the blank stare as I'm trying to figure out what to do next. I had that moment of blank stare, looking between the touchscreen, the debit card swipe pad, all the little physical interfaces, and the growing line of frustrated shoppers behind me. Matt Corrall, a senior designer at the design and innovation firm kinneirdufort, knows what I am talking about. He wrote an excellent post about the frustratingly fragmented interaction model of self-checkouts. As a designer, he took it one step further, and visualized a possible solution. Check out the full post over on their blog HERE.
There is also multi page conversation going on over in the DISCUSSION BOARDS as well.