In Chapter 1 of The Design of Everyday Things Donald Norman discusses several interfaces that are difficult to use and gives concrete reasons why. Choose two interfaces from the real world that Norman did not mention (they may be computer interfaces, or interfaces in the world), one of which is well designed and one of which is poorly designed according to Norman's principles. For each interface, write a paragraph that describes how the interface is poorly or well designed. Make sure you refer directly to some of the interface concepts described by Norman (e.g. affordances, mapping, feedback, visibility, conceptual models, etc).