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What makes something simple or complex? It's not the number of dials or controls or how many features it has: It is whether the person using the device has a good conceptual model of how it operates.

Donald A. Norman

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Donald A. Norman
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Simplification is as much in the mind as it is in the device.
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Innocence lost is not easily regained. The designer simply cannot predict the problems people will have, the misinterpretations that will arise, and the errors that will get made.
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Hypertext makes a virtue out of lack of organization, allowing ideas and thoughts to be juxtaposed at will. [...] The advent of hypertext is apt to make writing much more difficult, not easier. Good writing, that is.
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Only the most sophisticated of beings can lie and cheat, and get away with it.
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Having the best product means nothing if the people won't buy it.
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The design of everyday things is in great danger of becoming the design of superfluous, overloaded, unnecessary things.
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The hardest part of design ... is keeping features out.
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I believe that robots should only have faces if they truly need them
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I think there is a tendency in science to measure what is measurable and to decide that what you cannot measure must be uninteresting.
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Am I an Apple bigot? No. I can critique their products and their customer service philosophy. But overall, they do better than any other player.
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Complexity is acceptable as long as it is intelligible and necessary. We want to avoid needless complications.
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Good design is also an act of communication between the designer and the user, except that all the communication has to come about by the appearance of the device itself. The device must explain itself.
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The current paradigm is so thoroughly established that the only way to change is to start over again.
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